Digistart D3
23 A - 1600A
200 V - 690 V
General Information
The manufacturer accepts no liability for any consequences resulting from inappropriate, negligent or incorrect
installation or adjustment of the optional parameters of the equipment or from mismatching the starter with the motor.
The contents of this guide are believed to be correct at the time of printing. In the interests of commitment to a policy
of continuous development and improvement, the manufacturer reserves the right to change the specification of the
product or its performance, or the content of the guide without notice.
All rights reserved. No parts of this guide may be reproduced or transmitted in any form or by any means, electrical or
mechanical including, photocopying, recording or by an information storage or retrieval system, without permission in
writing from the publisher.
Software Version
This product is supplied with the latest version of user-interface and machine control software. If this product is to be
used in a new or existing system with other starters, there may be some differences between their software and the
software in this product. These differences may cause the product to function differently. This may also apply to
starters returned from the Nidec Service Centre.
If there is any doubt, please contact Nidec or your local Distributor.
Environmental Statement
Nidec is committed to minimising the impacts of its manufacturing operations. To this end, we operate an
Environmental Management System (EMS) which is certified to the International Standard ISO 14001.
When the products eventually reach the end of their useful life, they can very easily be dismantled into their major
component parts for efficient recycling. Many parts snap together and can be separated without the use of tools,
while other parts are secured with conventional screws.
Product packaging is of good quality and can be re-used. Large products are packed in wooden crates, while smaller
products come in strong cardboard cartons which themselves have a high recycled fibre content. If not re-used, these
containers can be recycled. Polythene, used on the protective film and bags from wrapping product, can be recycled
in the same way.
When preparing to recycle or dispose of any product or packaging, please observe local legislation and best practice.
REACH Legislation
EC Regulation 1907/2006 on the Registration, Evaluation, Authorisation and restriction of Chemicals (REACH)
requires the supplier of an article to inform the recipient if it contains more than a specified proportion of any
substance which is considered by the European Chemicals Agency (ECHA) to be a Substance of Very High Concern
(SVHC) and is therefore listed by them as a candidate for compulsory authorisation.
For current information on how this requirement applies in relation to specific Nidec products, please approach your
usual contact in the first instance.
For the latest manuals and software, please visit our website.
Contents
1 Safety Information ............................................................................................................................................ 5
1.1 Electrical safety - general warning ...................................................................................................................... 5
1.2 System Design and Safety of Personnel ............................................................................................................. 5
1.3 Environmental limits ............................................................................................................................................ 5
1.4 Compliance with regulations ............................................................................................................................... 5
1.5 Motor ................................................................................................................................................................... 5
1.6 Adjusting parameters .......................................................................................................................................... 6
1.7 Electrical Installation ........................................................................................................................................... 6
2 Rating Data ........................................................................................................................................................ 7
2.1 Model Code ......................................................................................................................................................... 7
2.2 Current Ratings ................................................................................................................................................... 7
3 Mechanical Installation ................................................................................................................................... 14
3.1 Dimensions and Weights .................................................................................................................................. 15
3.2 Physical Installation .......................................................................................................................................... 18
3.3 Busbar Adjustment Procedure .......................................................................................................................... 19
4 Electrical Installation ...................................................................................................................................... 21
4.1 Terminal layout ................................................................................................................................................. 21
4.2 Control connections .......................................................................................................................................... 26
4.3 Power connections ............................................................................................................................................ 27
4.4 Fuse information ............................................................................................................................................... 31
4.5 Bypass Contactor .............................................................................................................................................. 42
4.6 Main Contactor .................................................................................................................................................. 42
4.7 Circuit Breaker .................................................................................................................................................. 42
4.8 Power Factor Correction ................................................................................................................................... 42
4.9 EMC (Electromagnetic compatibility) ................................................................................................................ 42
5 Keypad and Status .......................................................................................................................................... 43
5.1 Keypad .............................................................................................................................................................. 43
5.2 Removing and Replacing the Keypad ............................................................................................................... 43
5.3 Synchronising the Keypad and the Starter ........................................................................................................ 44
5.4 Displays ............................................................................................................................................................ 44
6 Quick Start Commissioning ........................................................................................................................... 46
6.1 Control wiring .................................................................................................................................................... 46
6.2 Setup procedure ............................................................................................................................................... 47
7 Operation ......................................................................................................................................................... 48
7.1 Start, Stop and Reset Commands .................................................................................................................... 48
7.2 Soft start methods ............................................................................................................................................. 48
7.3 Stop Methods .................................................................................................................................................... 51
7.4 Jog Operation ................................................................................................................................................... 55
7.5 Inside Delta Operation ...................................................................................................................................... 55
8 Programming ................................................................................................................................................... 56
8.1 Programming Menu .......................................................................................................................................... 56
8.2 Access Code ..................................................................................................................................................... 57
8.3 Adjustment lock ................................................................................................................................................. 57
8.4 Load defaults .................................................................................................................................................... 57
8.5 Quick setup details ............................................................................................................................................ 58
8.6 Standard menu ................................................................................................................................................. 59
8.7 Advanced menu ................................................................................................................................................ 60
8.8 Parameter Descriptions .................................................................................................................................... 65
8.9 Maintenance Tools ............................................................................................................................................ 86
9 Diagnostics ...................................................................................................................................................... 91
9.1 Protection Responses ....................................................................................................................................... 91
9.2 Trip Messages .................................................................................................................................................. 91
9.3 General Faults .................................................................................................................................................. 95
Digistart D3: User Guide 3
Issue: G
10 Application Examples ..................................................................................................................................... 97
10.1 Installation with Main Contactor ........................................................................................................................ 97
10.2 Installation with External Bypass Contactor ...................................................................................................... 98
10.3 Emergency Run Operation................................................................................................................................ 99
10.4 Auxiliary Trip Circuit ........................................................................................................................................ 100
10.5 DC Brake with External Zero Speed Sensor ................................................................................................... 102
10.6 Soft Braking .................................................................................................................................................... 104
10.7 Two-Speed Motor ........................................................................................................................................... 105
10.8 Slip-Ring Motor ............................................................................................................................................... 106
11 Technical Data ............................................................................................................................................... 108
11.1 UL Compliant Installation ................................................................................................................................ 110
12 Maintenance .................................................................................................................................................. 111
12.1 Care ................................................................................................................................................................ 111
12.2 Measuring the motor current ........................................................................................................................... 111
12.3 Measuring the input and output power ............................................................................................................ 111
12.4 Exchanging products ...................................................................................................................................... 111
13 Options .......................................................................................................................................................... 112
4 Digistart D3: User Guide
Issue: G
1 Safety Information
WARNING
Indicates a hazard that may cause personal injury or death.
CAUTION
Indicates a hazard that may damage the equipment or installation.
NOTE
Provides helpful information.
1.1 Electrical safety - general warning
The voltages used in the starter can cause severe electrical shock and/or burns, and could be lethal. Extreme care is
necessary at all times when working with or adjacent to the starter.
Specific warnings are given at the relevant places in this guide.
1.2 System Design and Safety of Personnel
The starter is intended as a component for professional incorporation into complete equipment or a system. If
installed incorrectly, the starter may present a safety hazard.
The starter uses high voltages and currents, carries stored electrical energy, and is used to control equipment which
can cause injury.
Close attention is required to the electrical installation and the system design to avoid hazards either in normal
operation or in the event of equipment malfunction. System design, installation, commissioning and maintenance
must be carried out by personnel who have the necessary training and experience. They must read this safety
information and this guide carefully.
None of the starter functions must be used to ensure safety of personnel, ie they must not be used for
safety-related functions.
Careful consideration must be given to the functions of the starter which might result in a hazard, either through their
intended behaviour or through incorrect operation due to a fault. In any application where a malfunction of the starter
or its control system could lead to or allow damage, loss or injury, a risk analysis must be carried out, and where
necessary, further measures taken to reduce the risk.
The system designer is responsible for ensuring that the complete system is safe and designed correctly according to
the relevant safety standards.
1.3 Environmental limits
Instructions regarding transport, storage, installation and use of the starter must be complied with, including the
specified environmental limits. Starters must not be subjected to excessive physical force.
1.4 Compliance with regulations
The installer is responsible for complying with all relevant regulations, such as national wiring regulations, accident
prevention regulations and electromagnetic compatibility (EMC) regulations. Particular attention must be given to the
cross-sectional areas of conductors, the selection of fuses or other protection, and protective ground connections.
Within the European Union, all machinery in which this product is used must comply with the following directives:
2006/42/EC: Safety of machinery.
2014/35/EU: Low voltage directive
1.5 Motor
Ensure the motor is installed in accordance with the manufacturer’s recommendations. Ensure the motor shaft is not
exposed.
The values of the motor parameters set in the starter affect the protection of the motor. The default values in the
starter should not be relied upon. It is essential that the correct value is entered in Pr 1A Motor Full Load Current.
This affects the thermal protection of the motor.
Digistart D3: User Guide 5
Issue: G
1.6 Adjusting parameters
Some parameters have a profound effect on the operation of the starter. They must not be altered without careful
consideration of the impact on the controlled system. Measures must be taken to prevent unwanted changes due to
error or tampering.
1.7 Electrical Installation
1.7.1 Electrical shock risk
The voltages present in the following locations can cause severe electric shock and may be lethal:
• AC supply cables and connections
• Output cables and connections
• Many internal parts of the starter, and external option units
The AC supply must be disconnected from the starter using an approved isolation device before any cover is
removed from the starter or before any servicing work is performed.
WARNING – ELECTRICAL SHOCK HAZARD
Models D3-0500-B~D3-1600-N: The busbar and heatsink must be treated as live whenever the unit has
1.7.2 Power-up procedure
Always apply control voltage before (or with) mains voltage.
D3-0023-B to D3-0105-B: After transportation, mechanical shock or rough handling there is a possibility that the
bypass contactor may have latched into the on state. To prevent the possibility of the motor starting immediately, on
first commissioning or operation after transportation, always ensure that the control supply is applied before the
power, so that the contactor state is initialised.
1.7.3 STOP function
The STOP function does not remove dangerous voltages from the starter, the motor or any external option units.
1.7.4 Stored charge
The starter contains capacitors that remain charged to a potentially dangerous voltage after the AC supply has been
disconnected. If the starter has been energised, the AC supply must be isolated at least two minutes before work may
continue.
Normally, the capacitors are discharged by an internal resistor. Under certain, unusual fault conditions, the capacitors
may fail to discharge. Do not assume that the capacitors have discharged. To protect the user and the equipment,
take due care when carrying out any work on the starter.
1.7.5 Equipment supplied by plug and socket
The control supply terminals of the starter are connected to the internal capacitors through rectifier diodes which are
not intended to give safety isolation. If the plug terminals can be touched when the plug is disconnected from the
socket, a means of automatically isolating the plug from the starter must be used (e.g. a latching relay).
1.7.6 Short circuit
The Digistart D3 is not short circuit proof. After severe overload or short circuit, the operation of the Digistart D3
should be fully tested by an authorised service agent.
1.7.7 Auto-start
Use the auto-start feature with caution. Read all the notes related to auto-start before operation.
mains voltage connected (including when the starter is tripped or waiting for a command).
6 Digistart D3: User Guide
Issue: G
D3 –
1 4 – 0 2 5 5 – N – C 1
Control voltage
C1 = 110~210 VAC or 220~440 VAC
C2 = 24 VAC/VDC
Bypass
B = internally bypassed
N = non-bypassed
Nominal current rating
Mains voltage
14 = 200~440 VAC (± 10%)
system only
80 A : AC-53b
3.5 - 15 : 345
Off time (seconds)
Start time (seconds)
Start current (multiple of motor full load current)
Starter current rating (amperes)
2 Rating Data
2.1 Model Code
16 = 380 ~ 600 VAC (± 10%)
or 380 ~ 690 VAC (± 10%) - grounded star supply
CAUTION
Digistart D3 can only be used on 690V IT supply equipped with surge protectors. Please contact Nidec or
2.2 Current Ratings
Contact your local supplier for ratings under operating conditions not covered by these ratings charts.
2.2.1 Current Ratings for Bypass Operation
AC53b Utilisation Code
The AC53b utilisation code defines the current rating and standard operating conditions for a bypassed soft starter
(internally bypassed, or installed with an external bypass contactor).
The soft starter’s current rating determines the maximum motor size it can be used with. The soft starter's rating
depends on the number of starts per hour and the length and current level of the start.
The soft starter’s current rating is only valid when used within the conditions specified in the utilisation code. The soft
starter may have a higher or lower current rating in different operating conditions.
your local distributor.
Starter current rating: The full load current rating of the soft starter given the parameters detailed in the remaining
sections of the utilisation code.
Start current: The maximum available start current.
Start time: The maximum allowable start time.
Off time: The minimum allowable time between the end of one start and the beginning of the next start.
Digistart D3: User Guide 7
Issue: G
AC53b 3.0-10:350
40 ºC <1000 metres
AC53b 3.5-15:345
40 ºC <1000 metres
AC53b 4.0-20:340
40 ºC <1000 metres
AC53b 4.5-30:330
40 ºC <1000 metres
D3-0023-B
23 A
20 A
17 A
15 A
D3-0043-B
43 A
37 A
31 A
26 A
D3-0050-B
50 A
44 A
37 A
30 A
D3-0053-B
53 A
53 A
46 A
37 A
AC53b 3.0-10:590
40 ºC <1000 metres
AC53b 3.5-15:585
40 ºC <1000 metres
AC53b 4.0-20:580
40 ºC <1000 metres
AC53b 4.5-30:570
40 ºC <1000 metres
D3-0076-B
76 A
64 A
55 A
47 A
D3-0097-B
97 A
82 A
69 A
58 A
D3-0100-B
100 A
88 A
74 A
61 A
D3-0105-B
105 A
105 A
95 A
78 A
D3-0145-B
145 A
123 A
106 A
90 A
D3-0170-B
170 A
145 A
121 A
97 A
D3-0200-B
200 A
189 A
160 A
134 A
D3-0220-B
220 A
210 A
178 A
158 A
D3-0255-B
255 A
231 A
201 A
176 A
D3-0255-N
255 A
231 A
201 A
176 A
D3-0350-B
350 A
329 A
284 A
244 A
D3-0360-N
360 A
360 A
310 A
263 A
D3-0380-N
380 A
380 A
359 A
299 A
D3-0425-B
425 A
411 A
355 A
305 A
D3-0430-N
430 A
430 A
368 A
309 A
D3-0500-B
500 A
445 A
383 A
326 A
D3-0580-B
580 A
492 A
425 A
364 A
D3-0620-N
620 A
620 A
540 A
438 A
D3-0650-N
650 A
650 A
561 A
455 A
D3-0700-B
700 A
592 A
512 A
438 A
D3-0790-N
790 A
790 A
714 A
579 A
D3-0820-B
820 A
705 A
606 A
516 A
D3-0920-B
920 A
804 A
684 A
571 A
D3-0930-N
930 A
930 A
829 A
661 A
D3-1000-B
1000 A
936 A
796 A
664 A
D3-1200-N
1200 A
1200 A
1200 A
1071 A
D3-1410-N
1410 A
1410 A
1319 A
1114 A
D3-1600-N
1600 A
1600 A
1600 A
1353 A
In-line connection
8 Digistart D3: User Guide
Issue: G
AC53b 3.0-10:350
40 ºC <1000 metres
AC53b 3.5-15:345
40 ºC <1000 metres
AC53b 4.0-20:340
40 ºC <1000 metres
AC53b 4.5-30:330
40 ºC <1000 metres
D3-0023-B
34 A
30 A
26 A
22 A
D3-0043-B
64 A
59 A
51 A
44 A
D3-0050-B
75 A
66 A
55 A
45 A
D3-0053-B
80 A
80 A
69 A
55 A
AC53b 3.0-10:590
40 ºC <1000 metres
AC53b 3.5-15:585
40 ºC <1000 metres
AC53b 4.0-20:580
40 ºC <1000 metres
AC53b 4.5-30:570
40 ºC <1000 metres
D3-0076-B
114 A
96 A
83 A
70 A
D3-0097-B
145 A
123 A
104 A
87 A
D3-0100-B
150 A
132 A
112 A
92 A
D3-0105-B
157 A
158 A
143 A
117 A
D3-0145-B
218 A
184 A
159 A
136 A
D3-0170-B
255 A
217 A
181 A
146 A
D3-0200-B
300 A
283 A
241 A
213 A
D3-0220-B
330 A
315 A
268 A
238 A
D3-0255-B
382 A
346 A
302 A
264 A
D3-0255-N
382 A
346 A
302 A
264 A
D3-0350-B
525 A
494 A
427 A
366 A
D3-0360-N
540 A
540 A
465 A
395 A
D3-0380-N
570 A
570 A
539 A
449 A
D3-0425-B
638 A
617 A
533 A
458 A
D3-0430-N
645 A
645 A
552 A
464 A
D3-0500-B
750 A
668 A
575 A
490 A
D3-0580-B
870 A
738 A
637 A
546 A
D3-0620-N
930 A
930 A
810 A
651 A
D3-0650-N
975 A
975 A
842 A
683 A
D3-0700-B
1050 A
889 A
768 A
658 A
D3-0790-N
1185 A
1185 A
1075 A
868 A
D3-0820-B
1230 A
1058 A
910 A
774 A
D3-0920-B
1380 A
1206 A
1026 A
857 A
D3-0930-N
1395 A
1395 A
1244 A
992 A
D3-1000-B
1500 A
1404 A
1194 A
997 A
D3-1200-N
1800 A
1800 A
1800 A
1606 A
D3-1410-N
2115 A
2115 A
1979 A
1671 A
D3-1600-N
2400 A
2400 A
2400 A
2030 A
Inside delta connection
Digistart D3: User Guide 9
Issue: G
351 A
:
AC-53a
3.5 - 15 : 50 - 6
Starts per hour
On-load duty cycle (%)
Start time (seconds)
Start current (multiple of motor full load current)
Starter current rating (amperes)
AC53a 3-10:50-6
40 ºC <1000 metres
AC53a 3.5-15:50-6
40 ºC <1000 metres
AC53a 4-20:50-6
40 ºC <1000 metres
AC53a 4.5-30:50-6
40 ºC <1000 metres
D3-0255-N
255 A
222 A
195 A
171 A
D3-0360-N
360 A
351 A
303 A
259 A
D3-0380-N
380 A
380 A
348 A
292 A
D3-0430-N
430 A
413 A
355 A
301 A
D3-0620-N
620 A
614 A
515 A
419 A
D3-0650-N
650 A
629 A
532 A
437 A
D3-0790-N
790 A
790 A
694 A
567 A
D3-0930-N
930 A
930 A
800 A
644 A
D3-1200-N
1200 A
1200 A
1135 A
983 A
D3-1410-N
1410 A
1355 A
1187 A
1023 A
D3-1600-N
1600 A
1600 A
1433 A
1227 A
AC53a 3-10:50-6
40 ºC <1000 metres
AC53a 3.5-15:50-6
40 ºC <1000 metres
AC53a 4-20:50-6
40 ºC <1000 metres
AC53a 4.5-30:50-6
40 ºC <1000 metres
D3-0255-N
382 A
334 A
293 A
257 A
D3-0360-N
540 A
527 A
455 A
388 A
D3-0380-N
570 A
570 A
522 A
437 A
D3-0430-N
645 A
620 A
533 A
451 A
D3-0620-N
930 A
920 A
773 A
628 A
D3-0650-N
975 A
943 A
798 A
656 A
D3-0790-N
1185 A
1185 A
1041 A
850 A
D3-0930-N
1395 A
1395 A
1200 A
966 A
D3-1200-N
1800 A
1800 A
1702 A
1474 A
D3-1410-N
2115 A
2033 A
1780 A
1535 A
D3-1600-N
2400 A
2400 A
2149 A
1840 A
2.2.2 Current Ratings for Continuous Operation (Not bypassed)
AC53a Utilisation Code
The AC53a Utilisation Code defines the current rating and standard operating conditions for a non-bypassed soft
starter.
The soft starter’s current rating determines the maximum motor size it can be used with. The soft starter's rating
depends on the number of starts per hour, the length and current level of the start, and the percentage of the
operating cycle that the soft starter will be running (passing current).
The soft starter’s current rating is only valid when used within the conditions specified in the utilisation code. The soft
starter may have a higher or lower current rating in different operating conditions.
Starter current rating: The full load current rating of the soft starter given the parameters detailed in the remaining
sections of the utilisation code.
Start current: The maximum available start current.
Start time: The maximum allowable start time.
On-load duty cycle: The maximum percentage of each operating cycle that the soft starter can operate.
Starts per hour: The maximum allowable number of starts per hour.
In-line connection
Inside delta connection
10 Digistart D3: User Guide
Issue: G
models
Light
50 ºC <1000 metres
Standard
50 ºC <1000 metres
Heavy
50 ºC <1000 metres
D3-0023-B
23 A
21 A
16 A
D3-0043-B
43 A
39 A
29 A
D3-0050-B
50 A
46 A
35 A
D3-0053-B
53 A
53 A
45 A
D3-0076-B
76 A
65 A
46 A
D3-0097-B
97 A
79 A
58 A
D3-0100-B
100 A
84 A
65 A
D3-0105-B
105 A
105 A
79 A
D3-0145-B
145 A
124 A
90 A
D3-0170-B
170 A
141 A
110 A
D3-0200-B
200 A
159 A
135 A
D3-0220-B
220 A
180 A
156 A
D3-0255-B
255 A
205 A
180 A
D3-0350-B
360 A
302 A
240 A
D3-0425-B
425 A
360 A
302 A
D3-0500-B
515 A
384 A
324 A
D3-0580-B
590 A
426 A
360 A
D3-0700-B
700 A
515 A
431 A
D3-0820-B
820 A
605 A
509 A
D3-0920-B
920 A
673 A
590 A
D3-1000-B
1000 A
783 A
720 A
Non-bypassed models
D3-0255-N
242 A
220 A
160 A
D3-0360-N
360 A
302 A
242 A
D3-0380-N
380 A
341 A
272 A
D3-0430-N
430 A
360 A
302 A
D3-0620-N
620 A
493 A
394 A
D3-0650-N
650 A
515 A
414 A
D3-0790-N
790 A
661 A
527 A
D3-0930-N
930 A
751 A
597 A
D3-1200-N
1200 A
1148 A
932 A
D3-1410-N
1410 A
1200 A
979 A
D3-1600-N
1600 A
1444 A
1181 A
2.2.3 NEMA motor ratings
In-line connection
Internally bypassed
300%, 10 seconds
350%, 30 seconds
450%, 30 seconds
Digistart D3: User Guide 11
Issue: G
models
Light
50 ºC <1000 metres
Standard
50 ºC <1000 metres
Heavy
50 ºC <1000 metres
D3-0023-B
34 A
31 A
24 A
D3-0043-B
64 A
58 A
43 A
D3-0050-B
75 A
69 A
52 A
D3-0053-B
79 A
79 A
67 A
D3-0076-B
114 A
97 A
69 A
D3-0097-B
145 A
118 A
87 A
D3-0100-B
150 A
126 A
97 A
D3-0105-B
157 A
157 A
118 A
D3-0145-B
217 A
186 A
135 A
D3-0170-B
255 A
211 A
165 A
D3-0200-B
300 A
238 A
202 A
D3-0220-B
330 A
270 A
234 A
D3-0255-B
382 A
307 A
270 A
D3-0350-B
540 A
453 A
360 A
D3-0425-B
637 A
540 A
453 A
D3-0500-B
772 A
576 A
486 A
D3-0580-B
885 A
639 A
540 A
D3-0700-B
1050 A
772 A
646 A
D3-0820-B
1230 A
907 A
763 A
D3-0920-B
1380 A
1009 A
885 A
D3-1000-B
1500 A
1174 A
1080 A
Non-bypassed models
D3-0255-N
363 A
330 A
240 A
D3-0360-N
540 A
453 A
363 A
D3-0380-N
570 A
511 A
408 A
D3-0430-N
645 A
540 A
453 A
D3-0620-N
930 A
739 A
591 A
D3-0650-N
975 A
772 A
621 A
D3-0790-N
1185 A
991 A
790 A
D3-0930-N
1395 A
1126 A
895 A
D3-1200-N
1800 A
1722 A
1398 A
D3-1410-N
2115 A
1800 A
1468 A
D3-1600-N
2400 A
2166 A
1771 A
Inside delta connection
Internally bypassed
300%, 10 seconds
350%, 30 seconds
450%, 30 seconds
12 Digistart D3: User Guide
Issue: G
In-line connection
Inside delta connection
Model
Minimum
Maximum
Minimum
Maximum
D3-0023-B
5 A
23 A
5 A
34 A
D3-0043-B
9 A
43 A
9 A
64 A
D3-0050-B
10 A
50 A
10 A
75 A
D3-0053-B
11 A
53 A
11 A
79 A
D3-0076-B
15 A
76 A
15 A
114 A
D3-0097-B
19 A
97 A
19 A
145 A
D3-0100-B
20 A
100 A
20 A
150 A
D3-0105-B
21 A
105 A
21 A
157 A
D3-0145-B
29 A
145 A
29 A
217 A
D3-0170-B
34 A
170 A
34 A
255 A
D3-0200-B
40 A
200 A
40 A
300 A
D3-0220-B
44 A
220 A
44 A
330 A
D3-0255-B
51 A
255 A
51 A
382 A
D3-0255-N
51 A
255 A
51 A
382 A
D3-0350-B
70 A
350 A
70 A
525 A
D3-0360-N
72 A
360 A
72 A
540 A
D3-0380-N
76 A
380 A
76 A
570 A
D3-0425-B
85 A
425 A
85 A
638 A
D3-0430-N
86 A
430 A
86 A
645 A
D3-0500-B
100 A
500 A
100 A
750 A
D3-0580-B
116 A
580 A
116 A
870 A
D3-0620-N
124 A
620 A
124 A
930 A
D3-0650-N
130 A
650 A
130 A
975 A
D3-0700-B
140 A
700 A
140 A
1050 A
D3-0790-N
158 A
790 A
158 A
1185 A
D3-0820-B
164 A
820 A
164 A
1230 A
D3-0920-B
184 A
920 A
184 A
1380 A
D3-0930-N
186 A
930 A
186 A
1395 A
D3-1000-B
200 A
1000 A
200 A
1500 A
D3-1200-N
240 A
1200 A
240 A
1800 A
D3-1410-N
282 A
1410 A
282 A
2115 A
D3-1600-N
320 A
1600 A
320 A
2400 A
2.2.4 Minimum and Maximum Current Settings
The Digistart D3's minimum and maximum full load current settings depend on the model:
Digistart D3: User Guide 13
Issue: G
lete range is designed for use in an environment classified as Pollution
3 Mechanical Installation
WARNING
Digistart D3 models D3-0145-B to D3-1600-N weigh in excess of 15 kg (33 lb). Use appropriate
safeguards when lifting these models.
WARNING
Models D3-0145-B to D3-1000-B and D3-0255-N to D3-1600-N are intended to be mounted in an
enclosure which prevents access except by trained and authorised personnel, and which prevents the
ingress of contamination. The comp
Degree 3 in accordance with IEC60664-1. This means conductive pollution or dry, non-conductive
pollution which becomes conductive due to condensation is acceptable.
It is the installer's responsibility to ensure that any enclosure which allows access to models D3-0145-B to
D3-1000-B and D3-0255-N to D3-1600-N while the product is energized, provides protection against
contact and ingress requirements of IP20.
Models D3-0145-B to D3-1000-B can be installed with optional finger guards, in which case they do not
need to be mounted in an enclosure.
14 Digistart D3: User Guide
Issue: G
Size
A
(inch)
B
(inch)
C
(inch)
D
(inch)
E
(inch)
F
(inch)
G
(inch)
H
(inch)
I
(inch)
Weight
(lb)
D3-0023-B
D3-0043-B
192
4.2
D3-0050-B
(7.6)
(9.3)
D3-0053-B
G1B
156
124
295
278
D3-0076-B
(6.1)
(4.9)
(11.6)
(10.9)
4.5 (9.9)
D3-0097-B
223
5.0
D3-0100-B
(8.8)
(11.0)
D3-0105-B
D3-0145-B
14.0 (30.9)
D3-0170-B
G2B
282
250
438
380
250
n/a
n/a
n/a
n/a
14.2 (31.3)
D3-0200-B
(11.1)
(9.8)
(17.2)
(15.0)
(9.8)
15
D3-0220-B
(33.1)
D3-0255-B
424
376
440
392
298
26 (57.2)
D3-0350-B
G3B
(16.7)
(14.8)
(17.3)
(15.4)
(11.7)
29.4
D3-0425-B
(64.8)
D3-0500-B
50.0
D3-0580-B
(110.2)
D3-0700-B
433
320
640
600
297
64.5
D3-0820-B
G4B
(17.0)
(12.6)
(25.2)
(23.6)
(11.7)
n/a
n/a
n/a
n/a
(140.0)
D3-0920-B
64.0
D3-1000-B
(141.1)
D3-0255-N
390
(15.4)
320
(12.6)
460
(18.1)
400
(15.7)
279
(11.0)
23
(50.7)
D3-0360-N
36
D3-0380-N
(79.4)
D3-0430-N
430
320
689
522
300
104.5
104.5
5.5
8.5
D3-0620-N
G4N
(16.9)
(12.6)
(27.1)
(20.6)
(11.8)
(4.1)
(4.1)
(0.2)
(0.3)
D3-0650-N
39.5
D3-0790-N
(87.1)
D3-0930-N
51.5
(113.5)
D3-1200-N
128.5
(283.3)
D3-1410-N
130
(286.6)
D3-1600-N
140
(308.7)
3.1 Dimensions and Weights
NOTE
For further details on dimensions and corresponding CAD drawings please contact your local supplier.
Model
G3N
mm
mm
mm
mm
mm
mm
n/a n/a n/a n/a
n/a n/a n/a n/a
n/a n/a n/a n/a
mm
mm
mm
kg
G5N 574 500 883 727 361 132.5 129 5 8.5
(22.6) (19.7) (34.8) (28.6) (14.2) (5.2) (5.1) (0.2) (0.3)
NOTE
Dimensions F, G and H are the additional space required for the output and input busbars, in addition
to the overall chassis measurement (C).
Digistart D3: User Guide 15
Issue: G
D3-0023-B, D3-0043-B, D3-0050-B, D3-0053-B,
D3-0076-B, D3-0097-B, D3-0100-B, D3-0105-B
D3-0145-B, D3-0170-B, D3-0200-B, D3-0220-B
14268.A
1
42
6
9;
A
A
B
C
E
D
D3-0255-B, D3-0350-B, D3-0425-B
D3-0500-B, D3-0580-B, D3-0700-B, D3-0820-B,
D3-0920-B, D3-1000-B
14270;A
A
B
C
E
D
A
B
C
E
D
1
4
2
7
1
.
A
3.1.1 Bypassed Models (D3-0023-B~D3-1000-B)
16 Digistart D3: User Guide
Issue: G
D3-0255-N
A
B
C
D
14272.A
D3-0360-N, D3-0380-N, D3-0430-N, D3-0620-N, D3-0650-N, D3-0790-N, D3-0930-N, D3-1200-N,
D3-1410-N, D3-1600-N
C
D
F
I
G
H
E
A
B
142
73.
A
3.1.2 Non-bypassed Models (D3-0255-N~D3-1600-N)
Digistart D3: User Guide 17
Issue: G
1
3
4
2
08338.A
1
D3-0023-B ~ D3-0220-B: Allow 100 mm (3.94 inches) between soft starters.
D3-0360-N ~ D3-1600-N: Allow 200 mm (7.88 inches) between soft starters.
2
D3-0023-B ~ D3-0220-B: Allow 50 mm (1.97 inches) between the soft starter and solid surfaces.
D3-0360-N ~ D3-1600-N: Allow 200 mm (7.88 inches) between the soft starter and solid surfaces.
3
Soft starters may be mounted side by side with no clearance (that is, if mounted without communications
modules).
4
The soft starter may be mounted on its side. Derate the soft starter's rated current by 15%.
3.2 Physical Installation
D3-0255-B ~ D3-1000-B: Allow 200 mm (7.88 inches) between soft starters.
D3-0255-N: Allow 100 mm (3.94 inches) between soft starters.
D3-0255-B ~ D3-1000-B: Allow 200 mm (7.88 inches) between the soft starter and solid surfaces.
D3-0255-N: Allow 100 mm (3.94 inches) between the soft starter and solid surfaces.
18 Digistart D3: User Guide
Issue: G
It is the user's responsibility to follow these instructions correctly. Nidec cannot be held responsible for any
Input/Output
Output
Input
0835
0.A
Input/Output
Input
Output
08604.A
1. Remove all wiring and links from the soft starter
Remove the keypad faceplate, then gently remove the
3.3 Busbar Adjustment Procedure
The busbars on non-bypassed models D3-0360-N ~ D3-1600-N can be adjusted for top or bottom input and output as
required.
CAUTION
damage to the starter or associated equipment from incorrect practice.
ELECTROSTATIC DISCHARGE (ESD)
Many electronic components are sensitive to static electricity. Voltages so low that they cannot be felt,
seen or heard, can reduce the life, affect performance, or completely destroy sensitive electronic
components. When performing service, proper ESD equipment should be used to prevent possible
damage from occurring.
All units are manufactured with input and output busbars at the bottom of the unit as standard. The input and/or
output busbars can be moved to the top of the unit if required.
before dismantling the unit.
2. Remove the unit cover (4 screws).
3.
keypad (2 screws).
4. Remove the control terminal plugs.
5. Gently fold the main plastic away from the starter (12
screws).
6. Unplug the keypad loom from CON 1 (see note).
7. Label each SCR firing loom with the number of the
corresponding terminal on the backplane PCB, then
unplug the looms.
8. Unplug the thermistor, fan and current transformer
wires from the model board.
9. Remove the plastic tray from the starter (four screws).
NOTE
Remove the main plastic slowly to avoid damaging the keypad wiring loom which runs between the main
plastic and the backplane PCB.
Digistart D3: User Guide 19
Issue: G
08605.A
10. Unscrew and remove the magnetic bypass plates
08606.A
13. Slide the busbars in through the top of the starter. For
Run all wiring to the side of the starter and secure with
N, the CTs must be placed on an angle (the left
tabs).
(models D3-0620-N to D3-1600-N only).
11. Remove the current transformer assembly (three
screws).
12. Identify which busbars are to be moved. Remove the
bolts holding these busbars in place then slide the
busbars out through the bottom of the starter (four
bolts per busbar).
input busbars, the short curved end should be outside
the starter. For output busbars, the unthreaded hole
should be outside the starter.
14. Replace the dome washers with the flat face towards
the busbar, then tighten the bolts holding the busbars
in place to 20 Nm.
15. Place the current transformer assembly over the input
busbars and screw the assembly to the body of the
starter (see note).
16.
cable ties.
NOTE
If moving the input busbars, the current transformers (CTs) must also be reconfigured.
1. Label the CTs L1, L2 and L3 (L1 is leftmost when looking from the front of the starter). Remove the
cable ties and unscrew the CTs from the bracket.
2. Move the CT bracket to the top of the starter. Position the CTs for the correct phases, then screw the
CTs to the bracket. For models D3-0360-N ~ D3-0930hand legs of each CT will be on the top row of holes and the right hand legs will be on the bottom
20 Digistart D3: User Guide
Issue: G
D3-0023-B~
D3-0105-B
D3-0145-B~D3-0220-B
D3-0255-B~D3-0425-B
D3-0500-B~D3-1000-B
Ready
Run
LocalTrip
LCL
RMT
Reset
F2F1
M
Ready
Run
LocalTrip
LCL
RMT
Reset
F2F1
M
6/T34/T22/T1
5/L33/L21/L1
Ready
Run
LocalTrip
LCL
RMT
Reset
F2F1
M
6/T34/T22/T1 5/L33/L21/L1
6/T34/T22/T1 5/L33/L21/L1
Ready
Run
LocalTrip
LCL
RMT
Reset
F2F1
M
6/T34/T22/T1 5/L33/L21/L1
5/L33/L21/L1
1/L1, 3/L2, 5/L3
2/T1, 4/T2, 6/T3
1/L1 3/L2 5/L3
2/T1 4/T2 6/T3
1/L1 3/L2 5/L3
2/T1 4/T2 6/T3
1/L1 3/L2 5/L3
2/T1 4/T2 6/T3
1/L1 3/L2 5/L3
1/L1 3/L2 5/L3
2/T1 4/T2 6/T3
15765.A
Ready
Run
LocalTrip
LCL
RMT
Reset
F2F1
M
1/L1 3/L2 5/L3
T1B T2B T3B
2/T1 4/T2 6/T3
15632.A
4 Electrical Installation
WARNING
Always apply control voltage before (or with) mains voltage.
CAUTION
Always follow the specified tightening torque for all power and ground terminal connections.
For specifications and detailed technical data, see Technical Data on page 108.
4.1 Terminal layout
4.1.1 Power Input and Output Configurations
Internally Bypassed Models (D3-0023-B~D3-1000-B)
Models D3-0023-B ~ D3-0220-B have power inputs at the top of the unit and outputs at the bottom of the unit.
Internally bypassed models D3-0255-B ~ D3-0425-B have output busbars at the bottom of the unit and input busbars
at both the top and bottom of the unit. The AC supply can be connected 'Top in, Bottom out' or 'Bottom in, Bottom
out'.
Internally bypassed models D3-0500-B ~ D3-1000-B have input and output busbars at the top and bottom of the unit.
The AC supply can be connected 'Top in, Bottom out', 'Top in, Top out', 'Bottom in, Bottom out' or 'Bottom in, Top
out'.
D3-0255-N
D3-0255-N has dedicated bypass terminals at the bottom of the unit.
The bypass terminals are T1B, T2B, T3B.
Digistart D3: User Guide 21
Issue: G
surface contact area thoroughly (using an emery or stainless steel brush) and using an appropriate jointing
D3-0023-B~D3-0105-B
05966.E
Cable size:
11290.A
Torx T20 x 150
D3-0145-B
D3-0170-B~D3-0220-B
D3-0255-B
19 Nm (14.0 ft-lb)
38 Nm (28.0 ft-lb)
38 Nm (28.0 ft-lb)
6 mm19 mm
8.5 mm
(M8)
08351.B
08352.B
6
mm
19 m
m
10
.5 m
m
(
M10
)
5 mm
28 mm
11 mm
(M10)
1
3
1
8
1
.
B
D3-0350-B~D3-0425-B
D3-0500-B~D3-1000-B
D3-0255-N
38 Nm (28.0 ft-lb)
38 Nm (28.0 ft-lb)
38 Nm (28.0 ft-lb)
6
m
m
28 mm
11 mm
(M
10)
14543.A
1
3
mm
32 mm
11
m
m
(
M1
0
)
098 66.B
6
m
m
32 mm
1
0.
5
mm
(M
1
0)
08353.B
D3-0360-N~D3-0930-N
D3-1200-N~D3-1600-N
38 Nm (28.0 ft-lb)
66 Nm (48.7 ft-lb)
13
mm32 mm
1
0
.5
mm
(M
10)
08
354.B
16
mm51
mm
1
2.
5
mm
(M
12)
083
55.B
Non-bypassed Models (D3-0360-N~D3-1600-N)
D3-0360-N~D3-1600-N have dedicated bypass terminals, on the input busbars. The bypass terminals are L1B, L2B,
L3B.
The busbars on non-bypassed models D3-0360-N ~ D3-1600-N can be adjusted for top or bottom input and output as
required. See Busbar Adjustment Procedure for step-by-step instructions. All units are manufactured bottom
in/bottom out.
4.1.2 Power Terminations
NOTE
For personnel safety, the power terminals on models up to D3-0105-B are protected by snap-off tabs.
Use only copper stranded or solid conductors, rated for 75 ºC or higher.
When using large cables, it may be necessary to break off these tabs.
NOTE
Some units use aluminium busbars. When connecting power terminations, we recommend cleaning the
compound to prevent corrosion.
6-50 mm2 (AW G 10-1/0)
Torque: 4 Nm (2.9 ft-lb)
14 mm (0.55 inch)
Flat 7 mm x 150
22 Digistart D3: User Guide
Issue: G
Models
Terminal size
Torque
D3-0023-B ~ D3-0105-B
M6
3 Nm
D3-0145-B ~ D3-0255-B
M8
5 Nm
D3-0255-N
M8
5 Nm
D3-0350-B ~ D3-1000-B
M10
8.5 Nm
D3-0360-N ~ D3-1600-N
M10
8.5 Nm
D3-0023-B~D3-0105-B
D3-0255-B~D3-1000-B
D3-0145-B~D3-0220-B,
D3-0255-N~D3-1600-N
24 VAC/VDC: CSL-CSR
08339.A
220 ~440 VAC
110~ 210 VAC
4.1.3 Ground Terminals
Ground terminals are located at the back of the soft starter.
• D3-0023-B ~ D3-0105-B have one terminal on the input side (top).
• D3-0145-B ~ D3-1000-B and D3-0255-N ~ D3-1600-N have two terminals, one on the input side (top) and
Tighten the cables as follows:
one on the output side (bottom).
4.1.4 Control Terminals
CAUTION
Always connect control voltage to the correct terminals:
• 110~210 VAC: CSL-CSR
• 220~440 VAC: CSH-CSR
Control terminations use 2.5mm2 plug-in terminal blocks. Unplug each block, complete the wiring, then reinsert the
block.
•
WARNING
The installer must ensure that the external control circuits are insulated from human contact by at least
one layer of insulation (supplementary insulation) rated for use at the AC supply voltage.
Digistart D3: User Guide 23
Issue: G
1
2
3
+24V
D
I2
+2
4
V
DI1
+24V
DI3
E E E
+
24
V
DI2
+24V
DI
1
+24V
D
I
3
+
24
V
DI2
+24V
D
I1
+
24
V
D
I3
08340.A
Start/stop
R
es
e
t
S
tart
Stop
R
es
e
t
Start
S
t
op
Re
se
t
1
Two-wire control
2
Three-wire control
3
Four-wire control
4.1.5 Start/Stop control logic
The Digistart D3 has three fixed inputs for remote control. These inputs should be controlled by contacts rated for low
voltage, low current operation (gold flash or similar).
The maximum cable run is determined by the type of cable used, provided the maximum resistance of this cable does
not exceed 100 Ohms. The cables must be twisted in pairs and shielded. The shield must be grounded at one end
only, that is, at the soft starter end. To avoid any EMC disturbance from the motor power cables, the thermistor cable
must be separated from the motor power cables by a minimum parallel distance of 300 mm.
NOTE
For comprehensive information on control connection, see Control connections on page 26.
CAUTION
The control inputs are powered by the soft starter. Do not apply external voltage to the control input
terminals.
Cables to the control inputs must be segregated from mains voltage and motor cabling.
NOTE
You can set the Reset input to either NO or NC (default). See Pr 3N Remote Reset Logic.
4.1.6 Relay Outputs
The Digistart D3 provides four relay outputs, one fixed and three programmable.
The Run output closes when the soft start is complete (when the starting current falls below 120% of the programmed
motor full load current) and remains closed until the beginning of a stop (either soft stop or coast to stop).
Operation of the programmable outputs is determined by the settings of Pr 4A~4I.
• If assigned to Main Contactor, the output activates as soon as the soft starter receives a start command and
remains active while the soft starter is controlling the motor (until the motor starts a coast to stop, or until the
end of a soft stop).
• If assigned to a trip function, the output activates when a trip occurs.
• If assigned to a flag, the output activates when the specified flag is active (Pr 7A~7C).
CAUTION
Some electronic contactor coils are not suitable for direct switching with PCB mount relays. Consult the
Three additional outputs are available on the input/output expansion card.
contactor manufacturer/supplier to confirm suitability.
24 Digistart D3: User Guide
Issue: G
The thermistor circuit should be run in screened cable and must be electrically isolated from ground and all
4.1.7 Motor Thermistors
Motor thermistors can be connected directly to the Digistart D3. The soft starter will trip when the resistance of the
thermistor circuit exceeds approximately 3.6 kΩ or falls below 20 Ω.
If no motor thermistors are connected to the Digistart D3 thermistor input terminals TH1, TH2 must be open. If TH1,
TH2 are shorted, the Digistart D3 will trip.
The thermistor input is disabled by default, but activates automatically when a thermistor is detected. If thermistors
have previously been connected to the Digistart D3 but are no longer required, either:
• connect a 1.2 kΩ resistor between TH1, TH2 or
• reset the starter to factory defaults (see Load defaults). If you wish to retain the starter’s configuration, save
the starter’s settings to a user set before resetting. Reload the settings after the thermistor input has been
reset
NOTE
other power and control circuits.
4.1.8 Programmable inputs
The default setting of programmable input A is 'Starter Disable' (Pr 3A). If the Starter Disable function is not
required, change the setting of Pr 3A or connect a link across DI4, +24V.
If programmable input A is set to 'Starter Disable', the circuit must be closed for the starter to operate. An open circuit
across DI4, +24V will disable the starter. The Digistart D3 will not respond to start commands. If running, the soft
starter will allow the motor to coast to stop, ignoring the soft stop mode set in Pr 2H.
Digistart D3: User Guide 25
Issue: G
08347.A
5
4
3
2
1
RLC3
COM3
COM1
RLO1
+24V
0V
RLO2
COM2
RLO3
AO1
0V
COM4
RLC4
RLO4
TH2
TH1
DI2
+24V
DI3
+24V
DI4
+24V
+24V
+24V
DI5
PT4
PT5
PT3
CSR
CSL
CSH
DI1
+10%
-15%
+10%
-15%
A
PT4
PT5
PT3
C
PT4
PT5
PT3
B
B
E
7
6
220-440 VAC
110-210 VAC
1
Control voltage
DI1, +24V
Start
2
Remote control inputs
DI2, +24V
Stop
3
Motor thermistor input
DI3, +24V
Reset
4A
RTD/PT100 input - 2-wire
DI4, +24V
Programmable input A
4B
RTD/PT100 input - 3-wire
DI5, +24V
Programmable input B
4C
RTD/PT100 input - 4-wire
COM1, RLO1
Relay output A
5
24 VDC output
COM2, RLO2
Run relay output
6
Relay outputs
COM3, RLC3, RLO3
Relay output B
7
Analog output
COM4, RLC4, RLO4
Relay output C
4.2 Control connections
The Digistart D3 can be disabled via the control inputs. An open circuit across DI4, +24V will disable the starter. The
Digistart D3 will not respond to start commands. If running, the soft starter will allow the motor to coast to stop,
ignoring the soft stop mode set in Pr 2H.
To use the starter disable function, set Pr 3A to 'Starter Disable' (this is the default setting).
If the Starter Disable function is not required, change the setting of Pr 3A or connect a link across DI4, +24V.
For keypad control, the soft starter requires:
• control supply connections (terminals CSH, CSL, CSR depending on the control voltage)
• programmable input A (DI4, +24V) must be closed or Pr 3A Input A Function must be changed from Starter
26 Digistart D3: User Guide
Disable
Issue: G
6/T3
2/T1
5/L3
3/L2
1/L1
COM1
RLO1
4/T2
E
K1
K1 F1
M
3
08341.B
K1
Main contactor
F1
Semiconductor fuses (optional)
4.3 Power connections
4.3.1 Motor Connection
The Digistart D3 can be connected to the motor in-line or inside delta (also called three-wire and six-wire connection).
When connecting in inside delta, enter the motor full load current (FLC) for Pr 1A. The Digistart D3 will automatically
detect whether the motor is connected in-line or inside delta and will calculate the correct inside delta current level.
NOTE
For personnel safety, the power terminals on models up to D3-0105-B are protected by snap-off tabs.
Models which are internally bypassed do not require an external bypass contactor.
Internally bypassed models:
D3-0023-B, D3-0043-B, D3-0050-B, D3-0053-B, D3-0076-B, D3-0097-B, D3-0100-B, D3-0105-B, D3-0145-B,
D3-0170-B, D3-0200-B, D3-0220-B, D3-0255-B, D3-0350-B, D3-0425-B, D3-0500-B, D3-0580-B, D3-0700-B,
D3-0820-B, D3-0920-B, D3-1000-B
Non-bypassed models:
D3-0255-N, D3-0360-N, D3-0380-N, D3-0430-N, D3-0620-N, D3-0650-N, D3-0790-N, D3-0930-N, D3-1200-N,
D3-1410-N, D3-1600-N
4.3.2 In-line installation
In-line installation, internally bypassed
When using large cables, it may be necessary to break off these tabs.
NOTE
Main contactor is the default setting for Pr 4A Relay A Action (COM1, RLO1).
Digistart D3: User Guide 27
Issue: G
13034.B
K1
Main contactor
K2
Bypass contactor (external)
F1
Semiconductor fuses (optional)
K1
Main contactor
K2
Bypass contactor (external)
F1
Semiconductor fuses (optional)
(COM1, RLO1). Output relay COM2, RLO2 is
In-line installation, externally bypassed
Non-bypassed models have dedicated bypass terminals, which allow the Digistart D3 to continue providing protection
and monitoring functions even when bypassed via an external bypass contactor. The bypass contactor must be
connected to the bypass terminals and controlled by the soft starter's run output (terminals COM2, RLO2).
D3-0255-N
D3-0360-N to D3-1600-N
NOTE
The bypass terminals on D3-0255-N are T1B, T2B, T3B. The bypass terminals on D3-0360-N ~
D3-1600-N are L1B, L2B, L3B.
The fuses can be installed on the input side if required.
NOTE
Main contactor is the default setting for Pr 4A Relay A Action
dedicated to Run output operation and is ideal for managing an external bypass contactor.
28 Digistart D3: User Guide
Issue: G
T3
T1
L3
L2
L1
COM1
RLO1
T2
E
K1
K1 F1
M
3
08343.B
K1
Main contactor
F1
Semiconductor fuses (optional)
08344.B
M
3
6/T3
2/T1
COM1
RLO1
4/T2
K1
U1(1) U2(4)
V1(2)
V2(5)
W1(3) W2(6)
5/L3
3/L2
1/L1
E
K1 F1
K1
Main contactor (strongly
recommended)
F1
Semiconductor fuses
(optional)
COM1,
RLO1
Relay output A (= Main
Contactor, default)
In-line installation, non-bypassed
4.3.3 Inside delta installation
WARNING
When connecting the Digistart D3 in inside delta configuration, always install a main contactor or shunt trip
Inside delta installation, internally bypassed
circuit breaker.
NOTE
When connecting in inside delta, enter the motor full load current (FLC) for Pr 1A. The Digistart D3 will
automatically detect whether the motor is connected in-line or inside delta and will calculate the correct
inside delta current level.
Digistart D3: User Guide 29
Issue: G
M
3
13037.B
6/T3
2/T1
5/L3
3/L2
1/L1
COM1
RLO1
4/T2
E
K1
K1
U1(1) U2(4)
V1(2)
V2(5)
W1(3) W2(6)
T2B
T1B
T3B
K2
RLO2
COM2
K2
F1
K1
Main contactor (strongly
recommended)
K2
Bypass contactor (external)
F1
Semiconductor fuses
(optional)
COM1,
RLO1
Relay output A (= Main
Contactor, default)
COM2,
RLO2
Run relay output
08345.B
M
3
6/T3
2/T1
5/L3
3/L2
1/L1
COM1
RLO1
4/T2
E
K1
K1 F1
U1(1) U2(4)
V1(2)
V2(5)
W1(3) W2(6)
L2B
L1B
L3B
K2
RLO2
COM2
K2
K1
Main contactor (strongly
recommended)
K2
Bypass contactor (external)
F1
Semiconductor fuses
(optional)
COM1,
RLO1
Relay output A (= Main
Contactor, default)
COM2,
RLO2
Run relay output
Inside delta installation, externally bypassed
Non-bypassed models have dedicated bypass terminals, which allow the Digistart D3 to continue providing protection
and monitoring functions even when bypassed via an external bypass contactor. The bypass contactor must be
connected to the bypass terminals and controlled by the soft starter's run output (terminals COM2, RLO2).
D3-0255-N
D3-0360-N to D3-1600-N
NOTE
The bypass terminals on D3-0255-N are T1B, T2B, T3B. The bypass terminals on D3-0360-N ~
D3-1600-N are L1B, L2B, L3B.
The fuses can be installed on the input side if required.
30 Digistart D3: User Guide
Issue: G
6/T3
2/T1
5/L3
3/L2
1/L1
COM1
RLO1
4/T2
K1
K1
F1
U1(1)
U2(4)
V1(2)
V2(5)
W1(3)
W2(6)
M
3
08346.B
E
K1
Main contactor (strongly
recommended)
F1
Semiconductor fuses
(optional)
COM1,
RLO1
Relay output A (= Main
Contactor, default)
Adaptive Control controls the motor's speed profile, within the programmed time limit. This may result in a
Fuse selection is based on a 400% FLC start for 20 seconds in conjunction with standard published starts
Inside delta installation, non-bypassed
4.4 Fuse information
4.4.1 Power Supply Fuses
Semiconductor fuses can be used for Type 2 coordination (according to IEC 60947-4-2 standard) and to reduce the
risk of damage to SCRs from transient overload currents.
HRC fuses (such as Ferraz/Mersen AJT fuses) can be used for Type 1 coordination according to IEC 60947-4-2
standard.
NOTE
Fuses are not delivered with Digistart D3 soft starters.
CAUTION
higher level of current than traditional control methods.
For applications using Adaptive Control to soft stop the motor with stop times greater than 30 seconds, motor branch
protection should be selected as follows:
• standard HRC line fuses: minimum 150% motor full load current
• motor rated line fuses: minimum rating 100/150% motor full load current
• motor control circuit breaker minimum long time setting: 150% motor full load current
• motor control circuit breaker minimum short time setting: 400% motor full load current for 30 seconds
NOTE
per hour, duty cycle, 40°C ambient temperature and up to 1000 m altitude. For installations operating
outside these conditions, consult your local supplier.
These fuse tables contain recommendations only. Always consult your local supplier to confirm the
Digistart D3: User Guide 31
Issue: G
selection for your particular application.
Model
SCR I2T (A2S)
Supply Voltage
(< 440 Vac)
Supply Voltage
(< 575 Vac)
Supply Voltage
(< 690 Vac)
D3-0023-B
1150
170M1314
170M1314
170M1314
D3-0043-B
8000
170M1316
170M1316
170M1316
D3-0050-B
10500
170M1318
170M1318
170M1318
D3-0053-B
15000
170M1318
170M1318
170M1318
D3-0076-B
15000
170M1319
170M1319
170M1318
D3-0097-B
51200
170M1321
170M1321
170M1319
D3-0100-B
80000
170M1321
170M1321
170M1321
D3-0105-B
125000
170M1321
170M1321
170M1321
D3-0145-B
125000
170M1321
170M1321
170M1321
D3-0170-B
320000
170M2621
170M2621
170M2621
D3-0200-B
320000
170M2621
170M2621
170M2621
D3-0220-B
320000
170M2621
170M2621
170M2621
D3-0255-B
320000
170M2621
170M2621
170M2621
D3-0350-B
202000
170M5011
170M5011
––
D3-0425-B
320000
170M6011
––
––
D3-0500-B
320000
170M6008*
––
––
D3-0580-B
781000
170M6013
170M6013
170M6013
D3-0700-B
781000
170M5015
170M5015
––
D3-0820-B
1200000
170M5017
170M6015
––
D3-0920-B
2530000
170M6017
170M6017
––
D3-1000-B
2530000
170M6018
170M6013*
––
D3-0255-N
320000
170M2621
170M2621
170M2621
D3-0360-N
320000
170M6010
170M6010
170M6010
D3-0380-N
320000
170M6011
170M6011
––
D3-0430-N
320000
170M6011
170M6011
––
D3-0620-N
1200000
170M6015
170M6015
170M6014
D3-0650-N
1200000
170M6015
170M6015
170M6014
D3-0790-N
2530000
170M6017
170M6017
170M6016
D3-0930-N
4500000
170M6019
170M6019
170M6019
D3-1200-N
4500000
170M6021
––
––
D3-1410-N
6480000
––
––
––
D3-1600-N
12500000
170M6019*
––
––
Bussman fuses - square body (170M)
* Two parallel connected fuses required per phase.
32 Digistart D3: User Guide
Issue: G
Model
SCR I2T (A2S)
Supply Voltage
(< 440 Vac)
Supply Voltage
(< 575 Vac)
Supply Voltage
(< 690 Vac)
D3-0023-B
1150
63FE
63FE
63FE
D3-0043-B
8000
120FEE
120FEE
120FEE
D3-0050-B
10500
120FEE
120FEE
120FEE
D3-0053-B
15000
200FEE
200FEE
200FEE
D3-0076-B
15000
200FEE
200FEE
200FEE
D3-0097-B
51200
200FEE
200FEE
200FEE
D3-0100-B
80000
280FM
280FM
280FM
D3-0105-B
125000
280FM
280FM
280FM
D3-0145-B
125000
280FM
280FM
280FM
D3-0170-B
320000
450FMM
450FMM
450FMM
D3-0200-B
320000
450FMM
450FMM
450FMM
D3-0220-B
320000
450FMM
450FMM
450FMM
D3-0255-B
320000
450FMM
450FMM
450FMM
D3-0350-B
202000
315FM*
––
––
D3-0425-B
320000
400FMM*
––
––
D3-0500-B
320000
450FMM*
––
––
D3-0580-B
781000
500FMM*
500FMM*
500FMM*
D3-0700-B
781000
630FMM*
––
––
D3-0820-B
1200000
––
––
––
D3-0920-B
2530000
––
––
––
D3-1000-B
2530000
––
––
––
D3-0255-N
320000
450FMM
450FMM
450FMM
D3-0360-N
320000
––
––
––
D3-0380-N
320000
400FMM*
400FMM
400FMM*
D3-0430-N
320000
––
––
––
D3-0620-N
1200000
630FMM*
630FMM*
––
D3-0650-N
1200000
630FMM*
630FMM*
––
D3-0790-N
2530000
––
––
––
D3-0930-N
4500000
––
––
––
D3-1200-N
4500000
––
––
––
D3-1410-N
6480000
––
––
––
D3-1600-N
12500000
––
––
––
Bussman fuses - British style (BS88)
* Two parallel connected fuses required per phase.
Digistart D3: User Guide 33
Issue: G
Model
SCR I2T
(A2S)
Supply Voltage
(< 440 Vac)
Supply Voltage
(< 575 Vac)
Supply Voltage
(< 690 Vac)
D3-0023-B
1150
HSJ40**
HSJ40**
D3-0043-B
8000
HSJ80**
HSJ80**
D3-0050-B
10500
HSJ90**
HSJ90**
D3-0053-B
15000
HSJ110**
HSJ110**
D3-0076-B
15000
HSJ125**
HSJ125**
D3-0097-B
51200
HSJ175
HSJ175**
D3-0100-B
80000
HSJ175
HSJ175
D3-0105-B
125000
HSJ225
HSJ225
D3-0145-B
125000
HSJ250
HSJ250**
D3-0170-B
320000
HSJ300
HSJ300
D3-0200-B
320000
HSJ350
HSJ350
D3-0220-B
320000
HSJ400**
HSJ400**
D3-0255-B
320000
HSJ450*
HSJ450**
D3-0350-B
202000
HSJ500**
D3-0425-B
320000
Not suitable
D3-0500-B
320000
D3-0580-B
781000
D3-0700-B
781000
Not suitable
Not suitable
D3-0820-B
1200000
D3-0920-B
2530000
D3-1000-B
2530000
D3-0255-N
320000
HSJ450**
HSJ450**
D3-0360-N
320000
D3-0380-N
320000
D3-0430-N
320000
D3-0620-N
1200000
D3-0650-N
1200000
D3-0790-N
2530000
Not suitable
Not suitable
D3-0930-N
4500000
D3-1200-N
4500000
D3-1410-N
6480000
D3-1600-N
12500000
Ferraz/Mersen fuses - HSJ
* Two parallel connected fuses required per phase.
** Two series connected fuses required per phase.
34 Digistart D3: User Guide
Issue: G
Model
SCR I2T (A2S)
Supply Voltage
(< 440 Vac)
Supply Voltage
(< 575 Vac)
Supply Voltage
(< 690 Vac)
D3-0023-B
1150
A070URD30XXX0063
A070URD30XXX0063
––
D3-0043-B
8000
A070URD30XXX0125
A070URD30XXX0125
A070URD30XXX0125
D3-0050-B
10500
A070URD30XXX0125
A070URD30XXX0125
A070URD30XXX0125
D3-0053-B
15000
A070URD30XXX0125
A070URD30XXX0125
A070URD30XXX0125
D3-0076-B
15000
A070URD30XXX0160
A070URD30XXX0160
A070URD30XXX0160
D3-0097-B
51200
A070URD30XXX0200
A070URD30XXX0200
A070URD30XXX0200
D3-0100-B
80000
A070URD30XXX0200
A070URD30XXX0200
A070URD30XXX0200
D3-0105-B
125000
A070URD30XXX0315
A070URD30XXX0315
A070URD30XXX0315
D3-0145-B
125000
A070URD30XXX0315
A070URD30XXX0315
A070URD30XXX0315
D3-0170-B
320000
A070URD30XXX0315
A070URD30XXX0315
A070URD30XXX0315
D3-0200-B
320000
A070URD30XXX0450
A070URD30XXX0450
A070URD30XXX0450
D3-0220-B
320000
A070URD30XXX0450
A070URD30XXX0450
A070URD30XXX0450
D3-0255-B
320000
A070URD30XXX0450
A070URD30XXX0450
A070URD30XXX0450
D3-0350-B
202000
A070URD31XXX0550
––
––
D3-0425-B
320000
A070URD32XXX0630
––
––
D3-0500-B
320000
A070URD32XXX0700
––
––
D3-0580-B
781000
A070URD32XXX0800
–-
–-
D3-0700-B
781000
A070URD33XXX0900
––
––
D3-0820-B
1200000
A070URD33XXX1100
––
––
D3-0920-B
2530000
A070URD33XXX1250
––
––
D3-1000-B
2530000
A070URD33XXX1400
––
––
D3-0255-N
320000
A070URD30XXX0450
A070URD30XXX0450
A070URD30XXX0450
D3-0360-N
320000
A070URD33XXX0630
A070URD33XXX0630
A070URD33XXX0630
D3-0380-N
320000
A070URD33XXX0700
A070URD33XXX0700
––
D3-0430-N
320000
A070URD33XXX0700
A070URD33XXX0700
––
D3-0620-N
1200000
A070URD33XXX1000
A070URD33XXX1000
A070URD33XXX1000
D3-0650-N
1200000
A070URD33XXX1000
A070URD33XXX1000
A070URD33XXX1000
D3-0790-N
2530000
A070URD33XXX1400
A070URD33XXX1400
A070URD33XXX1250
D3-0930-N
4500000
A070URD33XXX1400
A070URD33XXX1400
A070URD33XXX1400
D3-1200-N
4500000
A055URD33XXX2250
––
––
D3-1410-N
6480000
A055URD33XXX2250
––
––
D3-1600-N
12500000
––
––
––
Ferraz/Mersen fuses - North American style (PSC 690)
XXX = blade type. See Ferraz/Mersen catalog for details.
Digistart D3: User Guide 35
Issue: G
Model
SCR I2T (A2S)
Supply Voltage
(< 440 Vac)
Supply Voltage
(< 575 Vac)
Supply Voltage
(< 690 Vac)
D3-0023-B
1150
6.9URD30XXXX0050
6.9URD30XXXX0050
6.9URD30XXXX0050
D3-0043-B
8000
6.9URD30XXXX0125
6.9URD30XXXX0125
6.9URD30XXXX0125
D3-0050-B
10500
6.9URD30D11A0125
6.9URD30D11A0125
6.9URD30D11A0125
D3-0053-B
15000
6.9URD30XXXX0125
6.9URD30XXXX0125
6.9URD30XXXX0125
D3-0076-B
15000
6.9URD30XXXX0160
6.9URD30XXXX0160
6.9URD30XXXX0160
D3-0097-B
51200
6.9URD30XXXX0200
6.9URD30XXXX0200
6.9URD30XXXX0200
D3-0100-B
80000
6.9URD30D11A0200
6.9URD30D11A0200
6.9URD30D11A0200
D3-0105-B
125000
6.9URD30XXXX0315
6.9URD30XXXX0315
6.9URD30XXXX0315
D3-0145-B
125000
6.9URD30XXXX0315
6.9URD30XXXX0315
6.9URD30XXXX0315
D3-0170-B
320000
6.9URD30XXXX0315
6.9URD30XXXX0315
6.9URD30XXXX0315
D3-0200-B
320000
6.9URD31XXXX0450
6.9URD31XXXX0450
6.9URD31XXXX0450
D3-0220-B
320000
6.9URD31XXXX0450
6.9URD31XXXX0450
6.9URD31XXXX0450
D3-0255-B
320000
6.9URD31XXXX0450
6.9URD31XXXX0450
6.9URD31XXXX0450
D3-0350-B
202000
6.9URD31XXXX0550
––
––
D3-0425-B
320000
6.9URD32XXXX0630
––
––
D3-0500-B
320000
6.9URD32XXXX0700
––
––
D3-0580-B
781000
6.9URD32D11A0800
––
––
D3-0700-B
781000
6.9URD33XXXX0900
––
––
D3-0820-B
1200000
6.9URD33XXXX1100
––
––
D3-0920-B
2530000
6.9URD33XXXX1250
––
––
D3-1000-B
2530000
6.9URD33XXXX1400
––
––
D3-0255-N
320000
6.9URD31XXXX0450
6.9URD31XXXX0450
6.9URD31XXXX0450
D3-0360-N
320000
6.9URD33XXXX0630
6.9URD33XXXX0630
6.9URD33XXXX0630
D3-0380-N
320000
6.9URD33D11A0700
6.9URD33D11A0700
6.9URD33D11A0700
D3-0430-N
320000
6.9URD33XXXX0700
6.9URD33XXXX0700
6.9URD33XXXX0700
D3-0620-N
1200000
6.9URD33D11A1000
6.9URD33D11A1000
6.9URD33D11A1000
D3-0650-N
1200000
6.9URD33XXXX1000
6.9URD33XXXX1000
6.9URD33XXXX1000
D3-0790-N
2530000
6.6URD33XXXX1400
6.6URD33XXXX1400
––
D3-0930-N
4500000
6.6URD33XXXX1400
6.6URD33XXXX1400
––
D3-1200-N
4500000
6URD233PLAF2200
6URD233PLAF2200
––
D3-1410-N
6480000
6URD233PLAF2200
6URD233PLAF2200
––
D3-1600-N
12500000
6URD233PLAF2800
6URD233PLAF2800
––
Ferraz/Mersen fuses - European style (PSC 690)
XXX = blade type. See Ferraz/Mersen catalog for details.
36 Digistart D3: User Guide
Issue: G
Model
SCR I2T
(A2S)
Supply Voltage
(< 440 Vac)
Supply Voltage
(< 575 Vac)
Supply Voltage
(< 690 Vac)
D3-0023-B
1150
AJT25
AJT25
D3-0043-B
8000
AJT50
AJT50
D3-0050-B
10500
AJT50
AJT50
D3-0053-B
15000
AJT60
AJT60
D3-0076-B
15000
AJT80
AJT80
D3-0097-B
51200
AJT100
AJT100
D3-0100-B
80000
AJT100
AJT100
D3-0105-B
125000
AJT125
AJT125
D3-0145-B
125000
AJT150
AJT150
D3-0170-B
320000
AJT175
AJT175
D3-0200-B
320000
AJT200
AJT200
D3-0220-B
320000
AJT250
AJT250
D3-0255-B
320000
AJT300
AJT300
D3-0350-B
202000
AJT400
AJT400
Not suitable
D3-0425-B
238000
AJT450
AJT450
D3-0500-B
320000
AJT500
AJT500
D3-0580-B
781000
A4BQ800
A4BQ800
D3-0700-B
781000
A4BQ800
A4BQ800
D3-0820-B
1200000
A4BQ1200
A4BQ1200
D3-0920-B
2530000
A4BQ1200
A4BQ1200
D3-1000-B
2530000
A4BQ1200
A4BQ1200
D3-0255-N
320000
AJT300
AJT300
D3-0360-N
320000
AJT400
AJT400
D3-0380-N
320000
AJT450
AJT450
D3-0430-N
320000
AJT450
AJT450
D3-0620-N
1200000
A4BQ800
A4BQ800
D3-0650-N
1200000
A4BQ800
A4BQ800
D3-0790-N
2530000
A4BQ1200
A4BQ1200
D3-0930-N
4500000
A4BQ1200 / A4BT1100
A4BQ1200 / A4BT1100
D3-1200-N
4500000
A4BQ1600
A4BQ1600
D3-1410-N
6480000
A4BQ2000
A4BQ2000
D3-1600-N
12500000
A4BQ2500 / A4BT1800
A4BQ2500 / A4BT1800
Ferraz/Mersen fuses - AJT
Digistart D3: User Guide 37
Issue: G
4.4.2 Short Circuit Protection Devices (SCPD)
Fuses may be installed to protect the soft starter or the installation.
Type 1 Coordination
Type 1 coordination requires that, in the event of a short circuit on the output side of a soft starter, the fault must be
cleared without risk of injury to personnel. There is no requirement that the soft starter must remain operational after
the fault.
HRC fuses (such as Ferraz/Mersen AJT fuses) can be used for Type 1 coordination according to IEC 60947-4-2
standard.
Type 2 Coordination
Type 2 coordination requires that in the event of a short circuit on the output side of a soft starter, the fault must be
cleared without risk of injury to personnel or damage to the soft starter.
Semiconductor fuses for Type 2 circuit protection are additional to HRC fuses or MCCBs that form part of the motor
branch circuit protection.
CAUTION
Adaptive Control controls the motor's speed profile, within the programmed time limit. This may result in a
higher level of current than traditional control methods.
CAUTION
DC Brake: A high brake torque setting can result in peak currents up to motor DOL being drawn while the
motor is stopping. Ensure protection fuses installed in the motor branch circuit are selected appropriately.
CAUTION
Integral solid state short circuit protection does not provide branch circuit protection. Branch circuit
protection must be provided in accordance with the National Electrical Code and any additional local
codes.
4.4.3 UL Short Circuit Ratings
Short circuit current ratings (SCCR) are available for 480 VAC and 600 VAC installations.
• 480 VAC circuits
For UL compliant installation, select a fuse that meets the specified fuse class and maximum fuse rating.
• 600 VAC circuits
For UL compliant installation, the starter can be protect by either fuses or a circuit breaker as specified in the
following tables.
38 Digistart D3: User Guide
Issue: G
@ 480
VAC max.
Model
Max. Fuse
class)
600 V Short
D3-0023-B
25 (J)
AJT25
A070URD30XXX0063
D3-0043-B
50 (J)
AJT50
D3-0050-B
A070URD30XXX0125
D3-0053-B
60 (J)
10 kA
AJT60
D3-0076-B
80 (J)
AJT80
Not available
D3-0097-B
100 (J)
AJT100
A070URD30XXX0200
D3-0100-B
D3-0105-B
125 (J)
AJT125
D3-0145-B
150 (J)
AJT150 / RK5 200
A070URD30XXX0315
D3-0170-B
65 kA
175 (J)
AJT175 / RK5 200
D3-0200-B
200 (J)
18 kA
AJT200 / RK5 300
A070URD30XXX0450
D3-0220-B
250 (J)
AJT250 / RK5 300
D3-0255-B
350 (RK1/J)
Not available
18 kA –
D3-0350-B
400 (J)
† For 3 cycles
D3-0425-B
450 (J)
A070URD33XXX0630
30 kA –
D3-0500-B
600 (J)
30 kA
Any 600 A, Class J
A070URD33XXX0700
For 3 cycles
D3-0580-B
800 (L)
Any 800 A, Class L
Not available
D3-0700-B
42 kA
D3-0820-B
A070URD33XXX1000
42 kA –
D3-0920-B
1200 (L)
85 kA
Any 1200 A, Class L
A070URD33XXX1400
For 3 cycles
D3-1000-B
D3-0255-N
65 kA
350 (RK1/J)
18 kA
AJT300
A070URD30XXX0450
D3-0360-N
600 (L)
Any 600 A, Class L
A070URD33XXX0630
D3-0380-N
A070URD33XXX0700
D3-0430-N
100 kA
800 (L)
100 kA
Any 800 A, Class L
D3-0620-N
A070URD33XXX1000
Not available
D3-0650-N
1200 (L)
Any 1200 A, Class L
D3-0790-N
A070URD33XXX1400
D3-0930-N
D3-1200-N
1600 (L)
A4BQ1600
A065URD33XXX1800
D3-1410-N
65 kA
2000 (L)
85 kA
A4BQ2000
A055URD33XXX2250
D3-1600-N
A4BQ2500
A050URD33XXX2500
Fuse selection
Short
Circuit
Rating
Rating (A)
(fuse
@ 600 VAC
Short
Circuit
Rating
Ferraz/Mersen fuse,
Listed J, L or RK5
Class Fuse
Ferraz/Mersen fuse,
R/C semi-conductor
fuses
cct rating –
3 cycles †
XXX = blade type. See Ferraz/Mersen catalog for details.
† - Models provided with a “3 cycle rating” are suitable for use in a circuit with the prospective current noted, when
protected by any UL Listed fuses or UL Listed circuit breakers sized according to the NEC.
Digistart D3: User Guide 39
Issue: G
Model
Short
max.
480 V/
rating
D3-0023-B
FXD3050 (50)
SELA36A7030 (50)
UTS125HU (50)
D3-0043-B
HFD3100 (100)
UTS150HU (100)
D3-0050-B
UTS150HU/
UTS250HU (150)
D3-0053-B
HFD3125 (125)
SELA36AT0100 (100)
10 kA
D3-0076-B
UTS150HU/
D3-0097-B
HJD3250 (250)
UTS250HU (250)
D3-0100-B
SELA36AT0150 (150)
D3-0105-B
HJD3150 (250)
D3-0145-B
D3-0170-B
65 kA
HJD3250 (250)
SFLA36AT0250 (250)
UTS250HU/
D3-0200-B
UTS400HU (400)
D3-0220-B
18 kA
UTS400HU/
UTS600HU (400)
D3-0350-B
HLD3600 (600)
SGLA36AT600 (600)
UTS600HU/
D3-0425-B
UTS800HU (800)
D3-0500-B
CHLD3600 (600)
SKLA36AT600 (600)
UTS800xU (800)
30 kA
D3-0580-B
CHLD3800 (800)
SKLA36AT800 (800)
D3-0700-B
UTS1200xU
D3-0820-B
NGH312033E (1200)
SKLA36AT1200 (1200)
42 kA
D3-0920-B
D3-1000-B
UTS800xU (1200)
UTS250HU/
UTS400HU (000)
D3-0360-N
SGLA36AT600 (1000)
UTS600HU/
18 kA
D3-0380-N
SGLA36AT800 (1000)
UTS800HU (1000)
UTS600HU/
UTS1200HU (1200)
D3-0620-N
SGLA36AT800 (1200)
UTS800/ UTS1200
D3-0650-N
(1200)
42 kA
D3-0790-N
SKLA36AT1200
D3-0930-N
(1200)
UTS1200 (1200)
D3-1200-N
D3-1410-N
85 kA
Siemens:
HPX3R1600 (1600)
85 kA
D3-1600-N
Circuit breaker selection
Circuit
Rating
@ 480
VAC
D3-0255-B HLD3600 (400) SGLA36AT600 (400)
Breaker 1: Eaton
Part Number
(rating, A)
Breaker 2: GE
Part Number
(rating, A)
Breaker 3: LSIS
Part Number
(rating, A)
600 V
standard
short
circuit
D3-0255-N SGLA36AT600 (400)
D3-0430-N 65 kA Not suitable
UTS800HU/
30 kA
40 Digistart D3: User Guide
Issue: G
Model
SCR I2t (A2s)
D3-0023-B
1150
D3-0043-B
8000
D3-0050-B
10500
D3-0053-B
15000
D3-0076-B
D3-0097-B
51200
D3-0100-B
80000
D3-0105-B
125000
D3-0145-B
D3-0170-B
D3-0200-B
320000
D3-0220-B
D3-0255-B
D3-0350-B
202000
D3-0425-B
320000
D3-0500-B
D3-0700-B
781000
D3-0580-B
D3-0820-B
1200000
D3-0920-B
2530000
D3-1000-B
D3-0255-N
D3-0360-N
320000
D3-0380-N
D3-0430-N
D3-0620-N
1200000
D3-0650-N
D3-0790-N
2530000
D3-0930-N
4500000
D3-1200-N
D3-1410-N
6480000
D3-1600-N
12500000
Fuse type Part Number
Ferraz Shawmut
Class J 1A
AJT1 (North America)
IEC aM 1A
16511-G (10x38)
17511-G (14x51)
15511-G (8x31)
Bussman
Class J 1A
LPJ-1SP (North America)
IEC aM 1A
C08M1 (8x32)
C10M1 (10x38)
C14M1 (14x51)
4.4.4 Fuse Selection for Type 2 Coordination
Type 2 coordination is achieved by using semiconductor fuses. These fuses must be able to carry motor start current
and have a total clearing I2t less than the I2t of the soft starter SCRs.
When selecting semiconductor fuses for Digistart D3, use the I2t values in the table.
For further information on selecting semiconductor fuses, contact your local distributor.
4.4.5 Control supply fuses
The following table lists the recommended control supply fuses. It is recommended that you use slow blow fuses
which allow a 10A, 0.01 second surge.
Digistart D3: User Guide 41
Issue: G
Standard
Type of Immunity
Application
Level
IEC61000-2-4
Harmonics
Class 3
IEC61000-4-2
Electrostatic Discharge
Housing of equipment
Level 3
IEC61000-4-3
Radiated radio frequency field
Housing of equipment
Level 3
IEC61000-4-4
Successive rapid transients
Control and power cables
Level 4
IEC61000-4-5
Surges
Power cables
Level 4
IEC61000-4-6
Conducted radio frequency
Control and power cables
Level 3
IEC61000-4-11
Voltage dips & short time interruptions
Class 2
Standard
Emissions
Level
IEC60947-4-2
Conducted on power supply from 150 kHz to 30MHz
Complies
IEC60947-4-2
Radiated emissions from 30 to 1000 MHz (CISPR 11 Group 1 class B)
Complies
4.5 Bypass Contactor
Some Digistart D3 soft starters are internally bypassed and do not require an external bypass contactor.
Non-bypassed soft starters may be installed with an external bypass contactor. Select a contactor with an AC1 rating
greater than or equal to the full load current rating of the connected motor.
Internally bypassed models:
D3-0023-B, D3-0043-B, D3-0050-B, D3-0053-B, D3-0076-B, D3-0097-B, D3-0100-B, D3-0105-B, D3-0145-B,
D3-0170-B, D3-0200-B, D3-0220-B, D3-0255-B, D3-0350-B, D3-0425-B, D3-0500-B, D3-0580-B, D3-0700-B,
D3-0820-B, D3-0920-B, D3-1000-B
Non-bypassed models:
D3-0255-N, D3-0360-N, D3-0380-N, D3-0430-N, D3-0620-N, D3-0650-N, D3-0790-N, D3-0930-N, D3-1200-N,
D3-1410-N, D3-1600-N
4.6 Main Contactor
A main contactor must be installed if the Digistart D3 is connected to the motor in inside delta format and is optional
for in-line connection. Select a contactor with an AC3 rating greater than or equal to the full load current rating of the
connected motor.
4.7 Circuit Breaker
A shunt trip circuit breaker may be used instead of a main contactor to isolate the motor circuit in the event of a soft
starter trip. The shunt trip mechanism must be powered from the supply side of the circuit breaker or from a separate
control supply.
4.8 Power Factor Correction
If power factor correction is used, a dedicated contactor should be used to switch in the capacitors.
To use the Digistart D3 to control power factor correction, connect the PFC contactor to a programmable relay set to
Run. When the motor reaches full speed, the relay will close and power factor correction will be switched in.
CAUTION
Power factor correction capacitors must be connected to the input side of the soft starter. Connecting
power factor correction capacitors to the output side will damage the soft starter.
4.9 EMC (Electromagnetic compatibility)
4.9.1 Immunity
The Digistart D3 complies with the following international immunity standards as required for IEC60947-4-2:
4.9.2 Conducted and Radiated Emissions
If the Digistart D3 is installed in accordance with the wiring instructions, the Digistart D3 complies with the following
international immunity standards:
42 Digistart D3: User Guide
Issue: G
08349.A
Stop
Start
Run
Ready
Trip Local
LCL
RMT
Stop
Start
Run
Ready
Trip Local
2 min
1
3
5
4
2
1
Four-line display for status and programming details.
2
Status LEDs
3
Soft starter local control buttons
4
Menu navigation buttons:
setting of the current parameter or scroll through the status screens.
5
Shortcut buttons for quick access to common tasks.
LED name
On
Flashing
Off
Ready
Ready
Restart delay or motor
closed (default setting)
No control power
Run
Running
Starting/ stopping
Not running, starting or stopping
Trip
Starter tripped
Warning
Normal operation
Local
Local control mode
n/a
Remote control mode
5 Keypad and Status
5.1 Keypad
M: Enter a menu or parameter, or save a parameter change.
: Exit the menu or parameter, or cancel a parameter change.
: Scroll to the next or previous menu or parameter, change the
temperature check or DI4 not
5.2 Removing and Replacing the Keypad
The keypad can be removed from the soft starter and mounted remotely on a panel using the remote mounting kit.
The keypad stores a backup copy of the parameters in the soft starter, so one keypad can be used to program
multiple Digistart D3 starters.
NOTE
The keypad can be removed or replaced while the starter is running. It is not necessary to remove mains
or control voltage.
WARNING
It is the installer's responsibility to ensure that any enclosure which allows access to models D3-0145-B to
D3-1000-B and D3-0255-N to D3-1600-N while the product is energized, provides protection against
contact and ingress requirements of IP20.
Digistart D3: User Guide 43
Issue: G
Every time a different keypad is plugged into the starter, an acknowledgement
Select the required option using the and buttons. Press M to proceed
If any of the settings in the keypad are not valid for the starter, the keypad
loads the default values.
5.2.1 Removing the keypad
The keypad is attached to the body of the soft starter by a DB9 serial connector and two screws. The screws are
concealed behind a snap-on faceplate.
To remove the keypad:
1. Models D3-0023-B to D3-1000-B: open the Digistart D3's door.
Models D3-0255-N to D3-1600-N: remove the Digistart D3's front cover.
2. Insert a small screwdriver under the faceplate, at the base of the keypad, and use the screwdriver to lever the
faceplate off the keypad.
3. Lift the faceplate off completely.
4. Remove the two screws holding the keypad in place.
5. Lift the keypad gently off the soft starter. Pull the keypad forwards, to avoid damaging the DB9 connector.
5.2.2 Reattaching the keypad
To reattach the keypad:
1. Align the connector on the back of the keypad with the socket on the soft starter and push the keypad firmly into
place. The keypad will be held in place by the connector and two locating nibs in the top right and bottom left
corners.
For temporary installation (eg during commissioning) it is not necessary to screw the keypad in place.
2. Replace the two screws holding the keypad in place.
3. Slide the bottom edge of the faceplate over the body of the keypad, then swing the top edge of the faceplate into
place and press onto the keypad. The retaining tabs on the back of the faceplate will snap into place.
5.3 Synchronising the Keypad and the Starter
When a keypad is connected to a Digistart D3, it synchronises its parameter settings with the settings in the soft
starter.
is displayed.
New Display Detected
Copy Parameters
with the selection.
Display to Starter
Starter to Display
NOTE
If a setting in the keypad is not valid for the starter, the keypad will display the message "Par. xx Out of
Range".
5.4 Displays
The keypad displays a wide range of performance information about the soft starter.
The top half of the screen shows real-time information on starter status, motor temperature and motor power.
Use the
5.4.1 Starter Status
The starter status screen shows details of the starter's operating status, motor temperature and motor power.
Ready
M1 000% 000.0kW
5.4.2 Average Current
The average current screen shows real-time average current.
0.0A
and buttons to select the information shown on the bottom half of the screen.
• Current
• Last start information
• Date and time
44 Digistart D3: User Guide
Issue: G
05050.C
000.0 A 0-400%
5.4.3 Programmable screen
The Digistart D3's user-programmable screen can be configured to show the most important information for the
particular application. Use Pr 9B to 9E to select which information to display.
000.0A 0.0pf
00000hrs 000kWh
5.4.4 Current
The current screen shows real-time line current on each phase. If the RTD/PT100 and ground fault protection card is
fitted, the screen will also show ground current.
Phase Currents
000.0A 000.0A 000.0A
5.4.5 Last Start Information
The last start information screen shows details of the most recent successful start:
• start duration (seconds)
• maximum start current drawn (as a percentage of motor full load current)
• calculated rise in motor temperature
Last start 010 s
350 % FLC ∆ Temp 5%
5.4.6 Date and Time
The date/time screen shows the current system date and time (24 hour format). For details on setting the date and
time, see Set date and time on page 86.
DD MMM YYYY
HH:MM:SS
5.4.7 Performance Graph
The performance graph provides a real-time display of operating performance. Use Pr 9F~9I to select which
information to display.
Digistart D3: User Guide 45
Issue: G
08335.A
DI2
+24V
DI3
+24V
DI4
+24V
+24V
CSR
CSL
CSH
DI1
110-210 VAC
+10%
-15%
220-440 VAC
+10%
-15%
F1
E
CSH-CSR or CSL-CSR
Control supply
DI1, +24V
Start
DI2, +24V
Stop
DI3, +24V
Reset
F1
Fuse (optional)
6 Quick Start Commissioning
This procedure is written from default parameter settings as the starter would be delivered from the factory.
WARNING
Always apply control voltage before (or with) mains voltage.
6.1 Control wiring
For keypad control, the soft starter requires:
• control supply connections (terminals CSH, CSL, CSR depending on the control voltage)
• programmable input A (DI4, +24V) must be closed or Pr 3A Input A Function must be changed from Starter
46 Digistart D3: User Guide
Issue: G
Disable
Action
Detail
Before power-up
Ensure:
The correct supply voltage is available
Power up the starter
Ensure:
The Ready LED activates
Program parameters
The Quick Setup Menu makes it easy to configure the Digistart D3 for common
button to select the characteristics you want to modify and adjust the value
For parameter details, see Parameter Descriptions on page 65.
Start the motor
Ensure:
To stop the motor, open terminal DI2, +24V.
6.2 Setup procedure
• The starter is not receiving a start signal
• The motor is connected to the starter
• The motor connection is correct
•
•
applications. The Digistart D3 selects the parameters relevant to the application and
suggests a typical setting, and you can adjust each parameter to suit your exact
requirements.
Press the M button.
To validate the Quick Setup Menu, press M again.
Select the application of your choice from the list.
The following applications are available through the Quick Setup Menu:
• Pump (centrifugal, submersible)
• Fan (damped, undamped)
• Compressor (screw, reciprocating)
• Conveyor
• Crusher (rotary, jaw)
Use the M
using and .
To confirm the selection, press the M key.
To exit the Quick Setup Menu and go back to the standard display, press
times.
For more information on the Quick Setup Menu, see Quick setup details.
For applications not covered by the Quick Setup Menu, select the Standard Menu,
then Menu 1 - Primary Motor Set and Menu 2 - Start/Stop Modes-1.
Press M to enter in the required menu.
The following parameters should be set to suit the requirements of the application:
• 1A Motor Full Load Current
• 2A Start Mode
• 2B Current Limit
• 2D Start Ramp Time
• 2I Stop Time
• 2H Stop Mode (if required)
several
• The status screen is shown on the starter display
• The following terminals are closed: DI4, +24V, DI2, +24V and DI3, +24V
To start the motor, close terminal DI1, +24V.
Digistart D3: User Guide 47
Issue: G
Soft Start Method
Parameter
Controlled
Performance Parameters Influenced
Timed Voltage Ramp
Voltage
Start current, start torque, acceleration
Constant Current
Current
Start torque, acceleration
Torque Control
Torque
Start current, acceleration
Adaptive Control
Acceleration
Start current, start torque
To Control
Use
Motor Start Current
Constant Current
Motor/Load Acceleration
Adaptive Control
7 Operation
7.1 Start, Stop and Reset Commands
The soft starter can be controlled in three ways:
• using the buttons on the keypad
• via remote inputs
• via a serial communication link
The LCL/RMT button controls whether the Digistart D3 will respond to local control (via the keypad) or remote control
(via the remote inputs).
• The Local LED on the keypad is on when the soft starter is in local control mode and off when the soft
starter is in remote control mode.
• The Remote LED on the Digistart D3 is on when the soft starter is in Remote mode and off when in Local
mode. The Remote LED is located on the main body of the starter (behind the keypad) and is only visible if
the keypad is remotely mounted.
Control via the fieldbus communication network is always enabled in local control mode, and can be enabled or
disabled in remote control mode (Pr 3O Comms in Remote). Control via the serial communication network requires
an optional communication module.
The STOP button on the keypad is always enabled.
To reset a trip on the soft starter, press the RESET button on the keypad or activate the Reset remote input.
NOTE
Adaptive Control, Jog, Brake and PowerThrough functions are not supported with inside delta (six-wire)
7.2 Soft start methods
Soft starters offer a variety of methods to control motor starting. Each soft start method uses a different primary
control parameter.
operation. See Inside Delta Operation on page 55.
Best results are obtained by selecting the soft start method that directly controls the parameter of most importance for
the application. Typically soft starters are used to limit motor start current or control load acceleration and/or
deceleration.
The Digistart D3 offers Constant Current or Adaptive Control. Use Pr 2A to select the soft start method.
To soft start the motor, press the START button on the keypad or activate the Start remote input. The motor will start
using the start mode selected in Pr 2A.
48 Digistart D3: User Guide
Issue: G
700%
600%
500%
300%
100%
400%
200%
10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
1
3
2
Rotor speed (% full speed)
700%
600%
500%
300%
100%
400%
200%
1
4
3
2
Time
7.2.1 Constant Current
Constant current is the traditional form of soft starting, which raises the current from zero to a specified level and
keeps the current stable at that level until the motor has accelerated.
Constant current starting is ideal for applications where the start current must be kept below a particular level.
1: Initial Current (Pr 2C)
2: Current Limit (Pr 2B)
3: Full voltage current
Current
(%motor full load current)
7.2.2 Current Ramp
Current ramp soft starting raises the current from a specified starting level (1) to a maximum limit (3), over an
extended period of time (2).
Current ramp starting can be useful for applications where:
• the load can vary between starts (for example a conveyor which may start loaded or unloaded). Set the
initial current (Pr 2C) to a level that will start the motor with a light load, and the current limit (Pr 2B) to a
level that will start the motor with a heavy load.
• the load breaks away easily, but starting time needs to be extended (for example a centrifugal pump where
pipeline pressure needs to build up slowly).
• the electricity supply is limited (for example a generator set), and a slower application of load will allow
greater time for the supply to respond.
1: Initial Current (Pr 2C)
2: Start Ramp Time (Pr 2D)
3: Current Limit (Pr 2B)
4: Full voltage current
Current
(%motor full load current)
7.2.3 Adaptive Control for Starting
In an adaptive control soft start, the Digistart D3 adjusts the current in order to start the motor within a specified time
and using a selected acceleration profile.
CAUTION
Adaptive Control cannot start the motor faster than a direct on-line (DOL) start. If the start ramp time (Pr
Every application has a particular starting profile, based on characteristics of the load and the motor. Adaptive Control
offers three different starting profiles, to suit the requirements of different applications. Selecting a profile that
matches the inherent profile of the application can help smooth out acceleration across the full start time. Selecting a
dramatically different Adaptive Control profile can somewhat neutralise the inherent profile.
The Digistart D3 monitors the motor's performance during each start, to improve control for future soft starts.
Digistart D3: User Guide 49
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2D) is shorter than the motor's DOL start time, starting current may reach DOL levels.
0
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according to the programmed profile. Start current will vary according
If replacing a motor connected to a Digistart D3 programmed for Adaptive Control starting or stopping, or if
Adaptive Control
To use Adaptive Control to control starting performance:
1. Select Adaptive Control from the Start Mode menu (Pr 2A)
2. Set the desired Start Ramp Time (Pr 2D)
3. Select the desired Adaptive Start Profile (Pr 2E)
4. Set a start Current Limit (Pr 2B) sufficiently high to allow a successful start. The first Adaptive Control start will be
a Constant Current start. This allows the Digistart D3 to learn the characteristics of the connected motor. This
motor data is used by the Digistart D3 during subsequent Adaptive Control starts.
Adaptive Start Profile (Pr 2E):
1. Early Acceleration
2. Constant Acceleration
3. Late Acceleration
Speed
NOTE
Adaptive Control will control the load
to the selected acceleration profile and the programmed start time.
4. Start Ramp Time (Pr 2D)
the starter has been tested on a different motor prior to actual installation, the starter will need to learn the
characteristics of the new motor. The Digistart D3 will automatically re-learn the motor's characteristics if
Pr 1A Motor Full Load Current or Pr 2L Adaptive Control Gain is changed.
How to Select the Adaptive Control Start Profile
The best profile will depend on the exact details of each application.
Some loads, such as submersible pumps, should not be run at slow speeds. An early acceleration profile will raise
the speed quickly, then control acceleration through the rest of the start.
CAUTION
Adaptive Control controls the motor's speed profile, within the programmed time limit. This may result in a
higher level of current than traditional control methods.
Fine-tuning Adaptive Control
If the motor does not start or stop smoothly, adjust the adaptive control gain (Pr 2L). The gain setting determines how
much the Digistart D3 will adjust future adaptive control starts and stops, based on information from the previous
start. The gain setting affects both starting and stopping performance.
• If the motor accelerates or decelerates too quickly at the end of a start or stop, increase the gain setting by
5%~10%.
• If the motor speed fluctuates during starting or stopping, decrease the gain setting slightly.
NOTE
Changing the gain setting resets the starter's adaptive control learning. The first start after changing the
gain will use constant current.
50 Digistart D3: User Guide
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1
2
6
4
5
3
Rotor speed (% full speed)
Stop Method
Performance Result
Coast To Stop
Natural load run down
TVR Soft Stop
Extended run down time
Adaptive Control
Extended run down time according to selected deceleration profile
Brake
Reduced run down time
7.2.4 Kickstart
Kickstart provides a short boost of extra torque at the beginning of a start, and can be used in conjunction with
current ramp or constant current starting.
Kickstart can be useful to help start loads that require high breakaway torque but then accelerate easily (for example
helical rotor pumps).
1: Kickstart Level (Pr 2F)
2: Kickstart Time (Pr 2G)
3: Initial Current (Pr 2C)
4: Start Ramp Time (Pr 2D)
5: Current Limit (Pr 2B)
Current
6: Full voltage current
(%motor full load current)
CAUTION
Kickstart subjects the mechanical equipment to increased torque levels. Ensure the motor, load and
couplings can handle the additional torque before using this feature.
7.3 Stop Methods
Soft starters offer a variety of methods for the control of motor stopping.
Soft starters are often used in pumping applications to eliminate the damaging effects of fluid hammer. Adaptive
Control should be the preferred stop method for these applications.
To stop the motor, press the STOP button on the keypad or activate the Stop remote input. The motor will stop
using the stop mode selected in Pr 2H.
7.3.1 Coast to Stop
Coast to stop lets the motor slow at its natural rate, with no control from the soft starter. The time required to stop will
depend on the type of load.
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1
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Time
7.3.2 TVR Soft Stop
Timed voltage ramp reduces the voltage to the motor gradually over a defined time. The load may continue to run
after the stop ramp is complete.
Timed voltage ramp stopping can be useful for applications where the stop time needs to be extended, or to avoid
transients on generator set supplies.
1: Stop Time (Pr 2I)
Voltage (% full voltage)
7.3.3 Adaptive Control for Stopping
In an adaptive control soft stop, the Digistart D3 controls the current in order to stop the motor within a specified time
and using a selected deceleration profile. Adaptive Control can be useful in extending the stopping time of low inertia
loads.
NOTE
Adaptive control does not actively slow the motor down and will not stop the motor faster than a coast to
Every application has a particular stopping profile, based on characteristics of the load and the motor. Adaptive
Control offers three different stopping profiles. Choose the adaptive control profile that best matches your application
requirements.
Adaptive Control
To use Adaptive Control to control stopping performance:
1. Select Adaptive Control from the Stop Mode menu (Pr 2H)
2. Set the desired Stop Time (Pr 2I)
3. Select the required Adaptive Stop Profile (Pr 2K)
stop. To shorten the stopping time of high inertia loads, use brake.
Adaptive Stop Profile (Pr 2K):
1. Early Deceleration
2. Constant Deceleration
3. Late Deceleration
Speed
4. Stop Time (Pr 2I)
52 Digistart D3: User Guide
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Adaptive Stop Profile
Application
Late Deceleration
High head systems where even a small decrease in motor/pump speed results in a
rapid transition between forward flow and reverse flow.
Constant Deceleration
Low to medium head, high flow applications where the fluid has high momentum.
Early Deceleration
Open pump systems where fluid must drain back through the pump without driving
the pump in reverse.
If replacing a motor connected to a Digistart D3 programmed for Adaptive Control starting or stopping, or if
• Pump stopping
The hydraulic characteristics of pump systems vary considerably. This variation means the ideal deceleration profile
and stop time will vary from application to application. The table provides guidelines on selecting between Adaptive
Control deceleration profiles, but we recommend testing the three profiles to identify the best profile for the
application.
The first Adaptive Control stop will be a normal soft stop. This allows the Digistart D3 to learn the characteristics of
the connected motor. This motor data is used by the Digistart D3 during subsequent Adaptive Control stops.
NOTE
Adaptive Control will control the load according to the programmed profile. Stopping current will vary
according to the selected deceleration profile and stop time.
the starter has been tested on a different motor prior to actual installation, the starter will need to learn the
characteristics of the new motor. The Digistart D3 will automatically re-learn the motor's characteristics if
Pr 1A Motor Full Load Current or Pr 2L Adaptive Control Gain is changed.
How to Select the Adaptive Control Stop Profile
The best profile will depend on the exact details of each application.
CAUTION
Adaptive Control controls the motor's speed profile, within the programmed time limit. This may result in a
higher level of current than traditional control methods.
Fine-tuning Adaptive Control
If the motor does not start or stop smoothly, adjust the adaptive control gain (Pr 2L). The gain setting determines how
much the Digistart D3 will adjust future adaptive control starts and stops, based on information from the previous
start. The gain setting affects both starting and stopping performance.
• If the motor accelerates or decelerates too quickly at the end of a start or stop, increase the gain setting by
5%~10%.
• If the motor speed fluctuates during starting or stopping, decrease the gain setting slightly.
NOTE
Changing the gain setting resets the starter's adaptive control learning. The first start after changing the
gain will use constant current.
Digistart D3: User Guide 53
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100%
75%
0%
50%
25%
1
2
3
Time
7.3.4 Brake
Brake reduces the time required to stop the motor.
During braking an increased noise level from the motor may be audible. This is a normal part of motor braking.
When brake is selected, the Digistart D3 uses DC injection to slow the motor.
Digistart D3 braking:
• Does not require the use of a DC brake contactor
• Controls all three phases so that the braking currents and associated heating are evenly distributed through
Braking has two stages:
To configure the Digistart D3 for brake operation:
1. Set Pr 2I for the desired stopping time duration (1). This is the total braking time and must be set sufficiently
2. Set Brake Time (Pr 2N) to approximately one quarter of the programmed Stop Time. This sets the time for the
3. Adjust the Brake Torque (Pr 2M) so that the desired stopping performance is achieved. If set too low, the motor
the motor.
CAUTION
If the brake torque is set too high, the motor will stop before the end of the brake time and the motor will
suffer unnecessary heating which could result in damage. Careful configuration is required to ensure safe
operation of the starter and motor.
A high brake torque setting can result in peak currents up to motor DOL being drawn while the motor is
stopping. Ensure protection fuses installed in the motor branch circuit are selected appropriately.
CAUTION
Brake operation causes the motor to heat faster than the rate calculated by the motor thermal model. If
you are using brake, install a motor thermistor or allow sufficient restart delay (Pr 6G).
• Pre-brake: provides an intermediate level of braking to slow motor speed to a point where full brake can be
operated successfully (approximately 70% speed).
• Full brake: brake provides maximum braking torque but is ineffective at speeds greater than approximately
70%.
longer than the brake time (Pr 2N) to allow the pre-braking stage to reduce motor speed to approximately 70%. If
the stop time is too short, braking will not be successful and the motor will coast to stop.
Full Brake stage (2).
will not stop completely and will coast to stop by the end of the braking period.
1: Stop Time (Pr 2I)
2: Brake Time (Pr 2N)
3: Coast to stop time
Speed
CAUTION
When using DC brake, the mains supply must be connected to the soft starter (input terminals L1, L2, L3)
in positive phase sequence and Pr 5D Phase Sequence must be set to Positive Only.
NOTE
For loads which may vary between braking cycles, install a zero speed sensor to ensure that the soft
starter ends DC braking when the motor stops. This avoids unnecessary heating of the motor.
For more information on using the Digistart D3 with an external speed sensor (eg for applications with
variable load during the braking cycle), see DC Brake with External Zero Speed Sensor on page 102.
54 Digistart D3: User Guide
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Adaptive Control Start
The starter performs a constant current start.
Adaptive Control Stop
The starter performs a TVR soft stop if Pr 2I Stop Time is >0 secs. If Pr 2I is set to 0
secs the starter performs a coast to stop.
Jog
The starter issues a warning with the error message Unsupported Option.
Brake
The starter performs a coast to stop.
PowerThrough
The starter trips with the error message Lx-Tx Shorted.
7.4 Jog Operation
Jog runs the motor at reduced speed, to allow alignment of the load or to assist servicing. The motor can be jogged in
either forward or reverse direction.
CAUTION
Slow speed running is not intended for continuous operation due to reduced motor cooling.
Jog operation causes the motor to heat faster than the rate calculated by the motor thermal model. If you
The maximum available torque for jog forward is approximately 50%~75% of motor full load torque (FLT) depending
on the motor. The torque when the motor is jogged in reverse is approximately 25% to 50% of FLT.
Pr 15E Jog Torque controls how much of the maximum available jog torque the soft starter will apply to the motor.
are using jog, install a motor thermistor or allow sufficient restart delay (Pr 6G).
NOTE
Soft start and soft stop are not available during jog operation.
Jog is only available for the primary motor.
NOTE
Torque settings above 50% may cause increased shaft vibration.
1. Motor FLT
2. Jog forward maximum torque
3. Jog reverse maximum torque
Available torque
To activate jog operation, use either a programmable input (see Pr 3A and 3F, will operate only in Remote Mode) or a
shortcut key (Pr 9J and 9K).
To stop a jog operation, perform one of the following:
• Remove the jog command.
• Press the STOP button on the keypad.
Jog will recommence at the end of a restart delay if the jog command is still present. All other commands except the
above, will be ignored during jog operation.
7.5 Inside Delta Operation
Adaptive Control, Jog, Brake and PowerThrough functions are not supported with inside delta (six-wire) operation. If
these functions are programmed when the starter is connected inside delta the behaviour is as given below:
NOTE
When connected in inside delta, current imbalance is the only phase loss protection that is active during
Digistart D3: User Guide 55
Issue: G
run. Do not disable current imbalance protection (Pr 5C) during inside delta operation.
NOTE
When connecting in inside delta, enter the motor full load current (FLC) for Pr 1A. The Digistart D3 will
automatically detect whether the motor is connected in-line or inside delta and will calculate the correct
inside delta current level.
Quick Setup Menu
The Quick Setup Menu allows you to select common applications and guides you through
the parameter setup process for these applications.
Standard Menu
The Standard Menu provides access to commonly used parameters, allowing you to
configure the Digistart D3 to suit your application.
Advanced Menu
The Advanced Menu provides access to all the Digistart D3's programmable parameters,
allowing experienced users to take advantage of advanced features.
Setup Tools
Setup Tools provides access to functions to save the current parameter settings to a file,
load parameters from a previously saved file, or reset all parameters to default values.
Simulations
Simulations allows you to simulate operation of the soft starter, including input and output
functions.
I/O State
I/O State provides access to information on the current state of the analog and digital inputs
and outputs.
Logs
The Logs Menu provides access to the Trip Log and Event Log.
Counters
The Counters Menu provides access to information on the starter's operating history.
8 Programming
CAUTION
The motor data parameters are critical to the correct operation of the soft starter's thermal model, and to
the motor overload protection. Always set Pr 1A to suit the motor's characteristics. The default settings of
Pr 1B, 1C and 1D are suitable for most applications. Consult the motor datasheet before changing these
8.1 Programming Menu
The Programming Menu lets you view and change programmable parameters that control how the Digistart D3
operates.
To open the Programming Menu, press the M button while viewing the monitoring screens.
To navigate through the Programming Menu:
To change a parameter value:
The Programming Menu contains the following sub-menus.
settings.
• to scroll through parameter groups, press the or button.
• to open a submenu, press the M button.
• to view the parameters in a group, press the M button.
• to return to the previous level, press the button.
• to close the Programming Menu, press
repeatedly.
• scroll to the appropriate parameter in the Programming Menu and press M to enter edit mode.
• to alter the parameter setting, use the
and buttons. Pressing or once will increase or decrease
the value by one unit. If the button is held for longer than five seconds, the value will increase or decrease at
a faster rate.
• to save changes, press M. The setting shown on the display will be saved and the keypad will return to the
parameter list.
• to cancel changes, press
. The keypad will ask for confirmation, then return to the parameter list without
saving changes.
56 Digistart D3: User Guide
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M
1. Open the Programming Menu and select Setup Tools. Enter the access
code.
2. Scroll to the required function and press the M button.
3. At the confirmation prompt, select YES to confirm or NO to cancel and
8.2 Access Code
Critical parameters (parameter group 15 and higher) are protected by a four-digit security access code, preventing
unauthorised users from viewing or modifying parameter settings.
When a user attempts to enter a restricted parameter group, the keypad prompts for an access code. The access
code is requested once for the programming session, and authorisation continues until the user closes the menu.
To enter the access code, use the and M buttons to select a digit, and the and buttons to change the
value. When all four digits match your access code, press M. The keypad will display an acknowledgement message
before continuing.
Enter Access Code
0###
Access Allowed
SUPERVISOR
To change the access code, use Pr 15A.
The simulation tools and counter resets are also protected by the security access code.
The default access code is 0000.
8.3 Adjustment lock
You can lock the Programming Menu to prevent users from altering parameter settings. The adjustment lock can be
turned on and off using Pr 15C.
To lock the programming menu:
1. Open the Programming Menu.
2. Open the Advanced Menu.
3. Select 'Restricted'.
4. Enter the Access Code
5. Select Pr 15C Adjustment Lock.
6. Select and store 'Read Only'.
If a user attempts to change a parameter value when the adjustment lock is active, an error message is displayed:
Access Denied
Adj Lock is On
8.4 Load defaults
Load Defaults restores the starter to the factory default settings for all parameters except Pr 9A Language. This does
not reset the access code.
To load defaults:
then M to load/save the selection.
When the action has been completed, the screen will briefly display a
confirmation message, then return to the status screens.
Digistart D3: User Guide 57
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Load Defaults
Load Backup
Save User Set 1
Load Defaults
No
Yes
Application
Parameter
Pr Number
Suggested value
Pump Centrifugal
Motor Full Load Current
Stop Time
1A
2I
Model dependent
15 seconds
Pump Submersible
Motor Full Load Current
Stop Time
1A
2I
Model dependent
5 seconds
Fan Damped
Motor Full Load Current
Current Limit
1A
2B
Model dependent
350%
Fan Undamped
Motor Full Load Current
Locked Rotor Time
1A
1C
Model dependent
20 seconds
Compressor Screw
Motor Full Load Current
Current Limit
1A
2B
Model dependent
400%
Compressor Recip
Motor Full Load Current
Current Limit
1A
2B
Model dependent
450%
Conveyor
Motor Full Load Current
Stop Time
1A
2I
Model dependent
10 seconds
Crusher Rotary
Motor Full Load Current
Locked Rotor Time
1A
1C
Model dependent
20 seconds
8.5 Quick setup details
To access the Quick Setup Menu, press the M button and select Quick Setup Menu.
The Quick Setup Menu makes it easy to configure the Digistart D3 for common applications. The Digistart D3 selects
the parameters relevant to the application and suggests a typical setting, and you can adjust each parameter to suit
your exact requirements.
Always set Pr 1A Motor Full Load Current to match the motor's nameplate full load current. The suggested value is
the starter's minimum full load current.
Start Mode
Adaptive Start Profile
Start Ramp Time
Stop Mode
Adaptive Stop Profile
Start Mode
Adaptive Start Profile
Start Ramp Time
Stop Mode
Adaptive Stop Profile
Start Mode
Start Mode
Adaptive Start Profile
Start Ramp Time
Excess Start Time
Start Mode
Start Ramp Time
2A
2E
2D
2H
2K
2A
2E
2D
2H
2K
2A
2A
2E
2D
5A
2A
2D
Adaptive Control
Early Acceleration
10 seconds
Adaptive Control
Late Deceleration
Adaptive Control
Early Acceleration
5 seconds
Adaptive Control
Late Deceleration
Constant Current
Adaptive Control
Constant Acceleration
20 seconds
30 seconds
Constant Current
5 seconds
58 Digistart D3: User Guide
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Start Mode
Start Ramp Time
Start Mode
Start Ramp Time
Current Limit
Stop Mode
Adaptive Stop Profile
Start Mode
Start Ramp Time
Current Limit
Excess Start Time
2A
2D
2A
2D
2B
2H
2K
2A
2D
2B
5A
Constant Current
5 seconds
Constant Current
5 seconds
400%
Adaptive Control
Constant Deceleration
Constant Current
10 seconds
400%
30 seconds
Crusher Jaw
Motor Full Load Current
Locked Rotor Time
1A
1C
Model dependent
30 seconds
Parameter Group
Parameters
Default Value
1 - Primary Motor Settings
M
1A
Motor Full Load Current
Model dependent
2 - Start/Stop Modes-1
M
2A
Start Mode
Constant Current
2B
Current Limit
350%
2C
Initial Current
350%
2D
Start Ramp Time
00:10 (minutes:seconds)
2H
Stop Mode
Coast To Stop
2I
Stop Time
00:03 (minutes:seconds)
2O
Auto-Start Type
Off
2P
Auto-Start Time
00:01 (hours:minutes)
2Q
Auto-Stop Type
Off
2R
Auto-Stop Time
00:01 (hours:minutes)
3 - Digital Inputs
M
3A
Input A Function
Starter Disable
3B
Input A Name
Starter Disable
3C
Input A Trip
Always Active
3D
Input A Initial Delay
00:00 (minutes:seconds)
3E
Input A Trip Delay
00:00 (minutes:seconds)
3F
Input B Function
Input Trip (N/O)
3G
Input B Name
Input Trip
3H
Input B Trip
Always Active
3I
Input B Initial Delay
00:00 (minutes:seconds)
3J
Input B Trip Delay
00:00 (minutes:seconds)
4 - Digital Outputs
M
4A
Relay A Action
Main Contactor
4B
Relay A On Delay
00:00 (minutes:seconds)
4C
Relay A Off Delay
00:00 (minutes:seconds)
4D
Relay B Action
Run
4E
Relay B On Delay
00:00 (minutes:seconds)
4F
Relay B Off Delay
00:00 (minutes:seconds)
4G
Relay C Action
Trip
4H
Relay C On Delay
00:00 (minutes:seconds)
4I
Relay C Off Delay
00:00 (minutes:seconds)
5 - Protection Settings
M
5A
Excess Start Time
00:20 (minutes:seconds)
5D
Phase Sequence
Any Sequence
5E
Underpower
20%
5F
Overpower
400%
Start Mode
Start Ramp Time
Current Limit
Excess Start Time
2A
2D
2B
5A
Constant Current
10 seconds
450%
40 seconds
8.6 Standard menu
The standard menu provides access to commonly used parameters. For parameter details, see Parameter
Descriptions on page 65.
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Parameter Group
Parameters
Default Value
6 - Protection Delays
M
6B
Underpower Delay
00:05 (minutes:seconds)
6C
Overpower Delay
00:00 (minutes:seconds)
7 - Set Points
M
7A
Low Current Flag
50%
7B
High Current Flag
100%
7C
Motor Temperature Flag
80%
9 - Display
M
9A
Languages
9B
User Screen - Top Left
Motor Current
9C
User Screen - Top Right
Motor pf
9D
User Screen - Bottom Left
Hours Run
9E
User Screen - Bottom Right
kWh
9J
F1 Button Action
Setup Auto-Start/Stop
9K
F2 Button Action
None
9M
Display A or kW
Current
Parameter Group
Parameters
Default Value
1 - Primary Motor Settings
M
1A
Motor Full Load Current
Model dependent
1B
Locked Rotor Current
600%
1C
Locked Rotor Time
00:10 (minutes:seconds)
1D
Motor Service Factor
105%
2 - Start/Stop Modes-1
M
2A
Start Mode
Constant Current
2B
Current Limit
350%
2C
Initial Current
350%
2D
Start Ramp Time
00:10 (minutes:seconds)
2E
Adaptive Start Profile
Constant Acceleration
2F
Kickstart Level
500%
2G
Kickstart Time
0 ms
2H
Stop Mode
Coast To Stop
2I
Stop Time
00:03 (minutes:seconds)
2J
Stop Delay
00:00 (minutes:seconds)
2K
Adaptive Stop Profile
Constant Deceleration
2L
Adaptive Control Gain
75%
2M
Brake Torque
20%
2N
Brake Time
00:01 (minutes:seconds)
2O
Auto-Start Type
Off
2P
Auto-Start Time
00:01 (hours:minutes)
2Q
Auto-Stop Type
Off
2R
Auto-Stop Time
00:01 (hours:minutes)
8.7 Advanced menu
The Advanced Menu gives access to all the programmable parameters in the Digistart D3. See Parameter
Descriptions on page 65.
60 Digistart D3: User Guide
Issue: G
Parameter Group
Parameters
Default Value
3 - Digital Inputs
M
3A
Input A Function
Starter Disable
3B
Input A Name
Starter Disable
3C
Input A Trip
Always Active
3D
Input A Initial Delay
00:00 (minutes:seconds)
3E
Input A Trip Delay
00:00 (minutes:seconds)
3F
Input B Function
Input Trip (N/O)
3G
Input B Name
Input Trip
3H
Input B Trip
Always Active
3I
Input B Initial Delay
00:00 (minutes:seconds)
3J
Input B Trip Delay
00:00 (minutes:seconds)
3K
Input C Function
Off
3L
Input D Function
Off
3M
Local/Remote
LCL/RMT Anytime
3N
Remote Reset Logic
Normally Closed
3O
Comms in Remote
Enable Control in RMT
4 - Digital Outputs
M
4A
Relay A Action
Main Contactor
4B
Relay A On Delay
00:00 (minutes:seconds)
4C
Relay A Off Delay
00:00 (minutes:seconds)
4D
Relay B Action
Run
4E
Relay B On Delay
00:00 (minutes:seconds)
4F
Relay B Off Delay
00:00 (minutes:seconds)
4G
Relay C Action
Trip
4H
Relay C On Delay
00:00 (minutes:seconds)
4I
Relay C Off Delay
00:00 (minutes:seconds)
4J
Relay D Action
Off
4K
Relay E Action
Off
4L
Relay F Action
Off
5 - Protection Settings
M
5A
Excess Start Time
00:20 (minutes:seconds)
5B
Excess Start Time-2
00:20 (minutes:seconds)
5C
Current Imbalance
30%
5D
Phase Sequence
Any Sequence
5E
Underpower
20%
5F
Overpower
400%
5G
Reserved
-
5H
Reserved
-
5I
Frequency Check
Start/Run
5J
Frequency Variation
±5 Hz
5K
Ground Fault Level
100 mA
5L
Motor Temperature Check
Do Not Check
6 - Protection Delays
M
6A
Current Imbalance Delay
00:03 (minutes:seconds)
6B
Underpower Delay
00:05 (minutes:seconds)
6C
Overpower Delay
00:00 (minutes:seconds)
6D
Reserved
-
6E
Reserved
-
6F
Frequency Delay
00:01 (minutes:seconds)
6G
Restart Delay
00:10 (minutes:seconds)
6H
Ground Fault Delay
00:03 (minutes:seconds)
Digistart D3: User Guide 61
Issue: G
Parameter Group
Parameters
Default Value
7 - Set Points
M
7A
Low Current Flag
50%
7B
High Current Flag
100%
7C
Motor Temperature Flag
80%
7D
Mains Reference Voltage
400 V
8 - Analog I/O
M
8A
Analog Input Trip
Do Not Trip
8B
Analog Input Scale
2-10 V
8C
Analog Trip Point
50%
8D
Analog Output A
Current (% FLC)
8E
Analog A Scale
4-20 mA
8F
Analog A Maximum Adjustment
100%
8G
Analog A Minimum Adjustment
0%
8H
Analog Output B
Current (% FLC)
8I
Analog B Scale
4-20 mA
8J
Analog B Maximum Adjustment
100%
8K
Analog B Minimum Adjustment
0%
9 - Display
M
9A
Languages
9B
User Screen - Top Left
Motor Current
9C
User Screen - Top Right
Motor pf
9D
User Screen - Bottom Left
Hours Run
9E
User Screen - Bottom Right
kWh
9F
Graph Data
Current (% FLC)
9G
Graph Timebase
10 seconds
9H
Graph Maximum Adjustment
400%
9I
Graph Minimum Adjustment
0%
9J
F1 Button Action
Setup Auto-Start/Stop
9K
F2 Button Action
None
9L
Current Calibration
100%
9M
Display A or kW
Current
10 - Auto-Reset
M
10A
Auto-Reset Action
Do Not Auto-Reset
10B
Maximum Resets
1
10C
Reset Delay Groups A&B
00:05 (minutes:seconds)
10D
Reset Delay Group C
5 minutes
11 - Secondary Motor
Settings
M
11A
Motor FLC-2
Model dependent
11B
Dual Thermal Model
Single
11C
Locked Rotor Current-2
600%
11D
Locked Rotor Time-2
00:10 (minutes:seconds)
11E
Motor Service Factor-2
105%
62 Digistart D3: User Guide
Issue: G
Parameter Group
Parameters
Default Value
12 - Start/Stop Modes-2
M
12A
Start Mode-2
Constant Current
12B
Current Limit-2
350%
12C
Initial Current-2
350%
12D
Start Ramp-2
00:10 (minutes:seconds)
12E
Adaptive Start Profile-2
Constant Acceleration
12F
Kickstart Level-2
500%
12G
Kickstart Time-2
0 ms
12H
Stop Mode-2
Coast To Stop
12I
Stop Time-2
00:03 (minutes:seconds)
12J
Stop Delay-2
00:00 (minutes:seconds)
12K
Adaptive Stop Profile-2
Constant Deceleration
12L
Adaptive Control Gain-2
75%
12M
Brake Torque-2
20%
12N
Brake Time-2
00:01 (minutes:seconds)
13 - Slip-Ring Motors
M
13A
Motor Data-1 Ramp
Single Ramp
13B
Motor Data-2 Ramp
Single Ramp
13C
Slip Ring Retard
50%
13D
Changeover Time
150 ms
14 - RTD/PT100
M
14A
RTD/PT100 A °C
50 °C
14B
RTD/PT100 B °C
50 °C
14C
RTD/PT100 C °C
50 °C
14D
RTD/PT100 D °C
50 °C
14E
RTD/PT100 E °C
50 °C
14F
RTD/PT100 F °C
50 °C
14G
RTD/PT100 G °C
50 °C
15 - Restricted
M
15A
Access Code
0000
15B
Emergency Run
Disable
15C
Adjustment Lock
Read & Write
15D
Shorted SCR Action
3-Phase Control Only
15E
Jog Torque
50%
Digistart D3: User Guide 63
Issue: G
Parameter Group
Parameters
Default Value
16 - Protection Action
M
16A
Motor Overload
Trip Starter
16B
Excess Start Time
Trip Starter
16C
Current Imbalance
Trip Starter
16D
Underpower
Trip Starter
16E
Overpower
Trip Starter
16F
Reserved
-
16G
Reserved
-
16H
Frequency
Trip Starter
16I
Input A Trip
Trip Starter
16J
Input B Trip
Trip Starter
16K
Motor Thermistor
Trip Starter
16L
Starter Communication
Trip Starter
16M
Network Communication
Trip Starter
16N
Heatsink Overtemperature
Trip Starter
16O
Battery/Clock
Trip Starter
16P
Ground Fault
Trip Starter
16Q
RTD/PT100 A
Trip Starter
16R
RTD/PT100 B
Trip Starter
16S
RTD/PT100 C
Trip Starter
16T
RTD/PT100 D
Trip Starter
16U
RTD/PT100 E
Trip Starter
16V
RTD/PT100 F
Trip Starter
16W
RTD/PT100 G
Trip Starter
16X
Low Control Volts
Trip Starter
64 Digistart D3: User Guide
Issue: G
No
Function
Option card required
3K
3L
4J
4K
4L
5K
6H
8A
8B
8C
8H
8I
8J
8K
14B
14C
14D
14E
14F
14G
16P
16R
16S
16T
16U
16V
16W
8.8 Parameter Descriptions
8.8.1 Notes on optional parameters
The following sections provide a description for all the parameters, whether available by default or optional. Optional
parameters are only available if the relevant option card is fitted to the soft starter. For a detailed list of optional
parameters, refer to the table below.
Input C Function
Input D Function
Relay D Action
Relay E Action
Relay F Action
Ground Fault Level
Ground Fault Delay
Analog Input Trip
Analog Input Scale
Analog Trip Point
Analog Output B
Analog B Scale
Analog B Maximum Adjustment
NOTE
Inputs C and D are only available if the input/output
expansion card is installed.
NOTE
Outputs D, E and F are only available if the input/output
expansion card is installed.
NOTE
Ground fault protection is only available if the RTD/PT100
and ground fault protection card is fitted.
NOTE
The analog input is only available if the input/output
expansion card is installed.
NOTE
Analog Output B is only available if the input/output
expansion card is installed.
Analog B Minimum Adjustment
RTD/PT100 B °C
RTD/PT100 C °C
RTD/PT100 D °C
NOTE
PT100 inputs B ~ G are only available if the RTD/PT100
and ground fault protection card has been installed.
RTD/PT100 E °C
RTD/PT100 F °C
RTD/PT100 G °C
Ground Fault
RTD/PT100 B
RTD/PT100 C
NOTE
Ground Fault and PT100 inputs B ~ G are only available if
the RTD/PT100 and ground fault protection card has been
installed.
RTD/PT100 D
RTD/PT100 E
RTD/PT100 F
RTD/PT100 G
Digistart D3: User Guide 65
Issue: G
1C and 1D provide Motor Overload Protection: Class 10, Trip Current 105% of FLA (full load amperage) or
8.8.2 Group 1 - Primary Motor Settings
CAUTION
The motor data parameters are critical to the correct operation of the soft starter's thermal model, and to
the motor overload protection. Always set Pr 1A to suit the motor's characteristics. The default settings of
Pr 1B, 1C and 1D are suitable for most applications. Consult the motor datasheet before changing these
1A – Motor FLC
Range: Model dependent
Description: Matches the starter to the connected motor's full load current. Set to the full load current (FLC)
When connecting in inside delta, enter the motor full load current (FLC) for Pr 1A. The Digistart D3 will automatically
detect whether the motor is connected in-line or inside delta and will calculate the correct inside delta current level.
1B – Locked Rotor Current
Range: 400% - 1200% FLC Default: 600%
Description: Sets the locked rotor current of the connected motor, as a percentage of full load current. Set
1C – Locked Rotor Time
Range: 0:01 - 2:00 (minutes:seconds) Default: 10 seconds
Description: Sets the maximum length of time the motor can sustain locked rotor current from cold before
1D – Motor Service Factor
Range: 100% - 130% Default: 105%
Description: Sets the motor service factor used by the thermal model. If the motor runs at full load current, it will
settings.
rating shown on the motor nameplate.
according to the motor datasheet.
reaching its maximum temperature. Set according to the motor datasheet.
reach 100%. Set according to the motor datasheet.
NOTE
Pr 1B, 1C and 1D determine the trip current for motor overload protection. The default settings of Pr 1B,
equivalent.
8.8.3 Group 2 - Start/Stop Modes-1
For details of soft start and stop control methods, see Soft start methods on page 48 and Stop methods on page 51.
2A – Start Mode
Options: Constant Current (default)
Adaptive Control
Description: Selects the soft start mode.
2B – Current Limit
Range: 100% - 600% FLC Default: 350%
Description: Sets the current limit for constant current and current ramp soft starting, as a percentage of motor
2C – Initial Current
Range: 100% - 600% FLC Default: 350%
Description: Sets the initial start current level for current ramp starting, as a percentage of motor full load
2D – Start Ramp Time
Range: 1 - 180 (seconds) Default: 10 seconds
Description: Sets the total start time for an Adaptive Control start or the ramp time for current ramp starting
full load current.
current. Set so that the motor begins to accelerate immediately after a start is initiated.
If current ramp starting is not required, set the initial current equal to the current limit.
(from the initial current to the current limit).
66 Digistart D3: User Guide
Issue: G
If the motor accelerates or decelerates too quickly at the end of a start or stop, increase the gain setting by
2E – Adaptive Start Profile
Options: Early Acceleration
Constant Acceleration (default)
Late Acceleration
Description: Selects which profile the Digistart D3 will use for an Adaptive Control soft start.
2F – Kickstart Level
Range: 100% - 700% FLC Default: 500%
Description: Sets the level of the kickstart current.
2G – Kickstart Time
Range: 0 – 2000 milliseconds Default: 0000 milliseconds
Description: Sets the kickstart duration. A setting of 0 disables kickstart.
CAUTION
Kickstart subjects the mechanical equipment to increased torque levels. Ensure the motor, load and
2H – Stop Mode
Options: Coast To Stop (default)
Description: Selects the stop mode.
2I – Stop Time
Range: 0:00 - 4:00 (minutes:seconds) Default: 3 seconds
Description: Sets the time for soft stopping the motor using timed voltage ramp or Adaptive Control. This also
2J - Stop Delay
Range: 0:00 - 1:00 (minutes:seconds) Default: 0 seconds
Description: Sets a delay after the starter receives a stop command, before it stops the motor.
2K – Adaptive Stop Profile
couplings can handle the additional torque before using this feature.
TVR Soft Stop
Adaptive Control
Brake
CAUTION
When using DC brake, the mains supply must be connected to the soft starter (input terminals L1, L2, L3)
in positive phase sequence and Pr 5D Phase Sequence must be set to Positive Only.
sets the total stopping time when using brake.
If a main contactor is installed, the contactor must remain closed until the end of the stop time. Use
one of the programmable relays to control the main contactor.
Options: Early Deceleration
Constant Deceleration (default)
Late Deceleration
Description: Selects which profile the Digistart D3 will use for an Adaptive Control soft stop.
2L – Adaptive Control Gain
Range: 1% - 200% Default: 75%
Description: Adjusts the performance of Adaptive Control. This setting affects both starting and stopping control.
NOTE
We recommend leaving the gain setting at the default level unless performance is not satisfactory.
5%~10%. If the motor speed fluctuates during starting or stopping, decrease the gain setting slightly.
2M – Brake Torque
Range: 20% - 100% Default: 20%
Description: Sets the amount of brake torque the Digistart D3 will use to slow the motor.
Digistart D3: User Guide 67
Issue: G
Options:
Off (default)
The soft starter will not auto-start.
Timer
The soft starter will auto-start after a delay from the next stop,
as specified in Pr 2P.
Clock
The soft starter will auto-start at the time programmed in Pr 2P.
Options:
Off (default)
The soft starter will not auto-stop.
Timer
The soft starter will auto-stop after a delay from the next start,
as specified in Pr 2R.
Clock
The soft starter will auto-stop at the time programmed in Pr 2R.
2N – Brake Time
Range: 1 - 30 (seconds) Default: 1 second
Description: Sets the duration for DC injection during a braking stop.
<
NOTE
Pr 2N is used in conjunction with Pr 2I. See Brake on page 54 for details.
Auto-start and auto-stop
The Digistart D3 can be programmed to start and stop automatically, after a specified delay or at a specified time of
day. Auto-start and auto-stop can be set separately. Auto-start/stop is only available in Remote mode.
WARNING
This function should not be used in conjunction with remote two-wire control.
The soft starter will still accept start and stop commands from the remote inputs or serial communication
network. To disable local or remote control, use Pr 3M.
If auto-start is enabled and the user is in the menu system, auto-start will become active if the menu times
2O – Auto-Start Type
Description: Selects whether the soft starter will auto-start after a specified delay, or at a time of day.
2P – Auto-Start Time
Range: 00:01 - 24:00 (hours:minutes) Default: 1 minute
Description: Sets the time for the soft starter to auto-start, in 24 hour clock format.
2Q – Auto-Stop Type
out (if no keypad activity is detected for five minutes).
Description: Selects whether the soft starter will auto-stop after a specified delay, or at a time of day.
2R – Auto-Stop Time
Range: 00:01 - 24:00 (hours:minutes) Default: 1 minute
Description: Sets the time for the soft starter to auto-stop, in 24 hour clock format.
68 Digistart D3: User Guide
Issue: G
Options:
Motor Set Select
The Digistart D3 can be configured with two separate sets of motor
and will use that motor data for the entire start/stop cycle.
Input Trip (N/O)
Input A can be used to trip the soft starter. When Pr 3A is set to Input
Trip (N/O), a closed circuit across DI4, +24V trips the soft starter.
Input Trip (N/C)
When Pr 3A is set to Input Trip (N/C), an open circuit across DI4,
+24V trips the soft starter.
Local/Remote Select
Input A can be used to select between local and remote control,
must be set to 'LCL/RMT Anytime' or 'LCL/RMT When Off'.
Emergency Run
In emergency run the soft starter continues to run until stopped,
the motor.
Starter Disable (default)
The Digistart D3 can be disabled via the control inputs. An open
the motor to coast to stop, ignoring the soft stop mode set in Pr 2H.
Jog Forward
Activates jog operation in a forward direction (will operate only in
Remote mode).
Jog Reverse
Activates jog operation in reverse direction (will operate only in
Remote mode).
Options:
Always Active (default)
A trip can occur at any time when the soft starter is receiving power.
Operating Only
A trip can occur while the soft starter is running, stopping or starting.
Run Only
A trip can only occur while the soft starter is running.
8.8.4 Group 3 - Digital Inputs
The Digistart D3 has two programmable inputs, which allow remote control of the soft starter. If required, two extra
inputs are available on the input/output expansion card.
3A – Input A Function
data.
To use the secondary motor data, Pr 3A must be set to 'Motor Set
Select' and DI4, +24V must be closed when a start command is
given. The Digistart D3 checks which motor data to use at a start,
instead of using the LCL/RMT button on the keypad. When the input
is open, the starter is in local mode and can be controlled via the
keypad. When the input is closed, the starter is in remote mode. The
START and LCL/RMT buttons are disabled, and the soft starter will
ignore any Local/Remote select command from the serial
communications network.
To use Input A to select between local and remote control, Pr 3M
ignoring all trips and warnings (see Pr 15B for details).
Closing the circuit across DI4, +24V activates emergency run.
Opening the circuit ends emergency run and the Digistart D3 stops
circuit across DI4, +24V will disable the starter. The Digistart D3 will
not respond to start commands. If running, the soft starter will allow
Description: Selects the function of Input A.
3B – Input A Name
Options: Input Trip No Flow
Low Pressure Starter Disable (default)
High Pressure Controller
Pump Fault PLC
Low Level Vibration
High Level
Description: Selects a message for the keypad to display when Input A is active.
3C – Input A Trip
Description: Selects when an input trip can occur.
3D – Input A Initial Delay
Range: 00:00 - 30:00 (minutes:seconds) Default: 0 second
Description: Sets a delay before an input trip can occur. The initial delay is counted from the time a start signal
is received. The state of the input is ignored until the initial delay has elapsed.
Digistart D3: User Guide 69
Issue: G
Options:
LCL/RMT Anytime
(default)
LCL/RMT button is always enabled.
LCL/RMT When Off
LCL/RMT button is enabled when the starter is off.
Local Control Only
All remote inputs are disabled.
Remote Control Only
Local control buttons (START, RESET, LCL/RMT) are disabled.
3E – Input A Trip Delay
Range: 0:00 - 4:00 (minutes:seconds) Default: 0 second
Description: Sets a delay between the input activating and the soft starter tripping.
3F, 3G, 3H, 3I, 3J – Input B Trip
Parameters 3F~3J configure the operation of Input B, in the same way as parameters 3A~3E configure Input A. See
Input A for details.
• 3F Input B Function (Default: Input Trip (N/O))
• 3G Input B Name (Default: Input Trip)
• 3H Input B Trip (Default: Always Active)
• 3I Input B Initial Delay (Default: 0:00)
3K, 3L – Inputs C and D
Parameters 3K and 3L select the function of Inputs C and D. See parameter 3A for details.
Inputs C and D are only available if the input/output expansion card has been installed.
Options: Motor Set Select
3M – Local/Remote
• 3J Input B Trip Delay (Default: 0:00)
Local/Remote Select
Emergency Run
Starter Disable (N/C)
Off (default)
Description: Selects when the LCL/RMT button can be used to switch between local and remote control, and
enables or disables the local control buttons and remote control inputs.
The STOP button on the keypad is always enabled.
WARNING
The STOP button on the keypad is always enabled. When using two-wire remote control, the soft starter
will restart if the remote start/stop and reset inputs are still active.
3N – Remote Reset Logic
Options: Normally Closed (default)
Normally Open
Description: Selects whether the Digistart D3's remote reset input (terminals DI3, +24V) is normally open or
normally closed.
3O – Comms in Remote
Options: Disable Control in RMT
Enable Control in RMT (default)
Description: Selects whether the starter will accept Start and Stop commands from the serial communication
network when in Remote mode. The Reset and Local/Remote Control commands are always
enabled.
70 Digistart D3: User Guide
Issue: G
Options:
Off
Relay A is not used.
Main Contactor (default)
The relay closes when the Digistart D3 receives a start command,
and remains closed as long as the motor is receiving voltage.
Run
The relay closes when the starter changes to run state.
Trip
The relay closes when the starter trips (see Pr 16A to 16X).
Warning
The relay closes when the starter issues a warning (see Pr 16A to
16X).
Low Current Flag
The relay closes when the low current flag activates while the motor
is running (see Pr 7A Low Current Flag).
High Current Flag
The relay closes when the high current flag activates while the motor
is running (see Pr 7B High Current Flag).
Motor Temperature Flag
The relay closes when the motor temperature flag activates (see Pr
7C Motor Temperature Flag).
Input A Trip
The relay closes when Input A activates to trip the soft starter.
Input B Trip
The relay closes when Input B activates to trip the soft starter.
Motor Overload
The relay closes when the starter trips on Motor Overload.
Current Imbalance
The relay closes when the starter trips on Current Imbalance.
Underpower
The relay closes when the starter trips on Underpower.
Overpower
The relay closes when the starter trips on Overpower.
Frequency
The relay closes when the starter trips on Frequency.
Ground Fault
The relay closes when the starter trips on Ground Fault.
Heatsink Overtemperature
The relay closes when the starter trips on Heatsink Overtemperature.
Phase Loss
The relay closes when the starter trips on Phase Loss.
Motor Thermistor
The relay closes when the starter trips on Motor Thermistor.
Changeover Contactor
The relay closes when the high rotor resistance current ramp has
reached full voltage, allowing use with a slip-ring motor.
Options:
Off
Motor overload
Main Contactor
Current imbalance
Run (default)
Underpower
Trip
Overpower
Warning
Frequency
Low Current Flag
Ground fault
High Current Flag
Heatsink overtemperature
Motor Temperature Flag
Phase Loss
Input A trip
Motor thermistor
Input B trip
Changeover Contactor
8.8.5 Group 4 - Digital Outputs
The Digistart D3 has three programmable outputs, which can be used to signal different operating conditions to
associated equipment. Three additional outputs are available on the input/output expansion card.
4A - Rela y A Action
Description: Selects the function of Relay A (normally open). Relay A is terminals COM1, RLO1.
4B – Relay A On Delay
Range: 0:00 - 5:00 (minutes:seconds) Default: 0 second
Description: Sets the delay for closing Relay A.
4C – Relay A Off Delay
Range: 0:00 - 5:00 (minutes:seconds) Default: 0 second
Description: Sets the delay for re-opening Relay A.
4D - Relay B Action
Description: Selects the function of Relay B. Relay B is a changeover relay. See Pr 4A Relay A Action for
details.
Digistart D3: User Guide 71
Issue: G
Options:
Off
Motor overload
Main Contactor
Current imbalance
Run
Underpower
Trip (default)
Overpower
Warning
Frequency
Low Current Flag
Ground fault
High Current Flag
Heatsink overtemperature
Motor Temperature Flag
Phase Loss
Input A trip
Motor thermistor
Input B trip
Changeover Contactor
Options:
Off (default)
Motor overload
Main Contactor
Current imbalance
Run
Underpower
Trip
Overpower
Warning
Frequency
Low Current Flag
Ground fault
High Current Flag
Heatsink overtemperature
Motor Temperature Flag
Phase Loss
Input A trip
Motor thermistor
Input B trip
Changeover Contactor
Options:
Off (default)
Motor overload
Main Contactor
Current imbalance
Run
Underpower
Trip
Overpower
Warning
Frequency
Low Current Flag
Ground fault
High Current Flag
Heatsink overtemperature
Motor Temperature Flag
Phase Loss
Input A trip
Motor thermistor
Input B trip
Changeover Contactor
4E – Relay B On Delay
Range: 0:00 - 5:00 (minutes:seconds) Default: 0 second
Description: Sets the delay for changing the state of Relay B.
4F – Relay B Off Delay
Range: 0:00 - 5:00 (minutes:seconds) Default: 0 second
Description: Sets the delay for changing the state of Relay B.
4G - Relay C Action
Description: Selects the function of Relay C. Relay C is a changeover relay. See Pr 4A Relay A Action for
details.
4H – Relay C On Delay
Range: 0:00 - 5:00 (minutes:seconds) Default: 0 second
Description: Sets the delay for changing the state of Relay C.
4I – Relay B Off Delay
Range: 0:00 - 5:00 (minutes:seconds) Default: 0 second
Description: Sets the delay for changing the state of Relay C.
4J – Relay D Action
Description: Selects the function of Relay D (normally closed). See Pr 4A Relay A Action for details.
4K – Relay E Action
Description: Selects the function of Relay E (normally open). See Pr 4A Relay A Action for details.
72 Digistart D3: User Guide
Issue: G
Options:
Off (default)
Motor overload
Main Contactor
Current imbalance
Run
Underpower
Trip
Overpower
Warning
Frequency
Low Current Flag
Ground fault
High Current Flag
Heatsink overtemperature
Motor Temperature Flag
Phase Loss
Input A trip
Motor thermistor
Input B trip
Changeover Contactor
4L – Relay F Action
Description: Selects the function of Relay F (normally open). See Pr 4A Relay A Action for details.
NOTE
Outputs D, E and F are only available if the input/output expansion card is installed.
8.8.6 Group 5 - Protection Settings
These parameters determine when the soft starter's protection mechanisms will activate. The activation point for each
protection mechanism can be set to suit the installation.
The soft starter responds to protection events by tripping, warning, or writing the event to the event log. The response
is determined by the Protection Action settings. The default response is a trip.
CAUTION
The protection settings are vital for safe operation of the soft starter and motor. Defeating the protection
5A, 5B – Excess Start Time
may compromise the installation and should only be done in the case of emergency.
Excess start time is the maximum time the Digistart D3 will attempt to start the motor. If the motor does not transition
to Run mode within the programmed limit, the starter will trip. Set for a period slightly longer than required for a
normal healthy start. A setting of 0 disables excess start time protection.
Range: 0:00 - 4:00 (minutes:seconds) Default: 20 seconds
Description: Parameter 5A sets the time for the primary motor and parameter 5B (Excess Start Time-2) sets the
time for the secondary motor.
5C – Current Imbalance
Range: 10% - 50% Default: 30%
Description: Sets the trip point for current imbalance protection.
The Digistart D3 can be configured to trip if the currents on the three phases vary from each other
by more than a specified amount. The imbalance is calculated as the difference between the
highest and lowest currents on all three phases, as a percentage of the highest current.
Current imbalance detection is desensitised by 50% during starting and soft stopping.
5D – Phase Sequence
Options: Any Sequence (default)
Positive Only
Negative Only
Description: Selects which phase sequences the soft starter will allow at a start. During its pre-start checks, the
starter examines the sequence of the phases at its input terminals and trips if the actual sequence
does not match the selected option.
5E - Underpower
Range: 0% - 100% Default: 20%
Description: Sets the trip point for underpower protection. Set as required.
5F - Overpower
Range: 80% - 600% FLC Default: 400%
Description: Sets the trip point for overpower protection. Set as required.
Digistart D3: User Guide 73
Issue: G
5G – Reserved
This parameter is reserved for internal use.
5H – Reserved
This parameter is reserved for internal use.
5I – Frequency Check
Options: Do Not Check
Start Only
Start/Run (default)
Run Only
Description: Determines when and if the starter will monitor for a frequency trip.
5J – Frequency Variation
Options: ± 2 Hz
± 5 Hz (default)
± 10 Hz
± 15 Hz
Description: Selects the soft starter's tolerance for frequency variation.
CAUTION
Running a motor outside its specified frequency for long periods can cause damage and premature failure.
5K – Ground Fault Level
Range: 20 mA - 50 A (21 steps) Default: 100mA
Description: Sets the trip point for ground fault protection.
The Digistart D3 can be configured to trip if ground fault exceeds a specified level while the motor
is running. Ground fault is a dynamic trip based on phase current measurements every half-cycle.
NOTE
Ground fault protection is only available if the RTD/PT100 and ground fault protection card is fitted.
5L – Motor Temperature Check
Options: Do Not Check (default)
Check
Description: Selects whether the Digistart D3 will verify the motor has sufficient thermal capacity for a
successful start. The soft starter compares the motor's calculated temperature with the temperature
rise from the last motor start and only operates if the motor is cool enough to start successfully.
8.8.7 Group 6 - Protection Delays
Protection delays slows the Digistart D3's response to the trip condition, avoiding trips due to momentary fluctuations.
6A – Current Imbalance Delay
Range: 0:00 - 4:00 (minutes:seconds) Default: 3 seconds
Description: Slows the Digistart D3's response to current imbalance, avoiding trips due to momentary
fluctuations.
6B – Underpower Delay
Range: 0:00 - 4:00 (minutes:seconds) Default: 5 seconds
Description: Slows the Digistart D3's response to underpower, avoiding trips due to momentary fluctuations.
6C – Overpower Delay
Range: 0:00 - 1:00 (minutes:seconds) Default: 0 seconds
Description: Slows the Digistart D3's response to overpower, avoiding trips due to momentary fluctuations.
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6D – Reserved
This parameter is reserved for internal use.
6E – Reserved
This parameter is reserved for internal use.
6F – Frequency Delay
Range: 0:00 - 4:00 (minutes:seconds) Default: 1 second
Description: Slows the Digistart D3's response to frequency disturbances, avoiding trips due to momentary
fluctuations.
6G – Restart Delay
Range: 00:01 - 60:00 (minutes:seconds) Default: 10 seconds
Description: The Digistart D3 can be configured to force a delay between the end of a stop and the beginning of
the next start. During the restart delay period, the display shows the time remaining before another
start can be attempted.
NOTE
The restart delay is measured from the end of each stop. Changes to the restart delay setting take effect
after the next stop.
6H – Ground Fault Delay
Range: 0:01 - 4:00 (minutes:seconds) Default: 3 seconds
Description: Slows the Digistart D3's response to ground fault variation, avoiding trips due to momentary
fluctuations.
NOTE
Ground fault protection is only available if the RTD/PT100 and ground fault protection card is fitted.
8.8.8 Group 7 - Set Points
7A – Low Current Flag
The Digistart D3 has low and high current flags to give early warning of abnormal operation. The current flags can be
configured to indicate an abnormal current level during operation, between the normal operating level and the
undercurrent or instantaneous overcurrent trip levels. The flags can signal the situation to external equipment via one
of the programmable outputs.
The flags clear when the current returns within the normal operating range by 10% of the programmed flag value.
Range: 1% - 100% FLC Default: 50%
Description: Sets the level at which the low current flag operates, as a percentage of motor full load current.
7B – High Current Flag
Range: 50% - 600% FLC Default: 100%
Description: Sets the level at which the high current flag operates, as a percentage of motor full load current.
7C – Motor Temperature Flag
The Digistart D3 has a motor temperature flag to give early warning of abnormal operation. The flag can indicate that
the motor is operating above its normal operating temperature but lower than the overload limit. The flag can signal
the situation to external equipment via one of the programmable outputs.
Range: 0% - 160% Default: 80%
Description: Sets the level at which the motor temperature flag operates, as a percentage of the motor's thermal
capacity.
7D – Mains Reference Voltage
Range: 100 – 690 V Default: 400 V
Description: Sets the nominal mains voltage for the keypad's monitoring functions. This is used to calculate
motor kilowatts and kilovolt amperes (kVA) but does not affect the Digistart D3's motor control or
protection.
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Options:
Current (% FLC) (default)
Current as a percentage of motor full load current.
Motor Temp (%)
Motor temperature as a percentage of the motor's thermal capacity.
Motor kW (%)
Measured motor kilowatts, as a percentage of maximum kW.
Motor kVA (%)
Measured motor kilovolt amperes, as a percentage of maximum kVA.
Motor pf
Motor power factor, measured by the soft starter.
Measured motor kW:
√3 x average current x mains reference voltage x measured power
factor
Maximum motor kW:
√3 x motor FLC x mains reference voltage. Power factor is assumed
to be 1
Measured motor kVA:
√3 x average current x mains reference voltage
Maximum motor kVA:
3 x motor FLC x mains reference voltage
8.8.9 Group 8 - Analog I/O
The Digistart D3 has one analog output (terminals AO1, 0V).
If required, a second analog output and an analog input are available on the input/output expansion card.
8A – Analog Input Trip
An analog input can be fitted to the Digistart D3 if required. An external device can activate the analog input to trip the
soft starter in response to external conditions.
Options: Do Not Trip (default)
Trip High
Trip Low
Description: Selects the soft starter's response to the analog input signal.
8B – Analog Input Scale
Options: 0-10 V
2-10 V (default)
Description: Selects the scale of the analog input.
8C – Analog Trip Point
Range: 0% - 100% Default: 50%
Description: Sets the signal level at which an analog input trip will occur, as a percentage of the maximum
8D – Analog Output A
signal on the input.
NOTE
The analog input is only available if the input/output expansion card is installed.
√
Description: Selects which information will be reported via the analog output.
8E – Analog A Scale
Range: 0-20 mA
4-20 mA (default)
Description: Selects the range of the analog output.
8F – Analog A Maximum
Range: 0% - 600% Default: 100%
Description: Calibrates the upper limit of the analog output to match the signal measured on an external current
measuring device.
8G – Analog A Minimum
Range: 0% - 600% Default: 0%
Description: Calibrates the lower limit of the analog output to match the signal measured on an external current
measuring device.
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Options:
Current (% FLC) (default)
Current as a percentage of motor full load current.
Motor Temp (%)
Motor temperature as a percentage of the motor's thermal capacity.
Motor kW (%)
Measured motor kilowatts, as a percentage of maximum kW.
Motor kVA (%)
Measured motor kilovolt amperes, as a percentage of maximum kVA.
Motor pf
Motor power factor, measured by the soft starter.
8H – Analog Output B
Description: Selects which information will be reported via the analog output. See Pr 8D Analog Output A for
details.
NOTE
Output B is only available if the input/output expansion card has been installed.
8I – Analog B Scale
Range: 0-20 mA
4-20 mA (default)
Description: Selects the range of the analog output.
8J – Analog B Maximum
Range: 0% - 600% Default: 100%
Description: Calibrates the upper limit of the analog output to match the signal measured on an external current
measuring device.
8K – Analog B Minimum
Range: 0% - 600% Default: 0%
Description: Calibrates the lower limit of the analog output to match the signal measured on an external current
measuring device.
8.8.10 Group 9 - Display
9A - Languages
Options: English Deutsch
Français Español
Italiano Chinese
Description: Selects which language the keypad will use to display messages and feedback.
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Options:
Blank
Displays no data in the selected area, allowing long messages to be
shown without overlapping.
Starter State
The starter's operating state (starting, running, stopping or tripped).
Only available for top left and bottom left positions on the screen.
Motor Current
The average current measured on three phases.
Motor pf
The motor's power factor, measured by the soft starter.
Mains Frequency
The average frequency measured on three phases.
Motor kW
The motor's running power in kilowatts.
Motor HP
The motor's running power in horsepower.
Motor Temp
The motor's temperature, calculated by the thermal model.
kWh
The number of kilowatt hours the motor has run via the soft starter.
Hours Run
The number of hours the motor has run via the soft starter.
Analog Input
The level of analog input A (see Pr 8A~8C). This setting is only
available if the input/output expansion option is installed.
Motor kVA
The motor’s apparent running power in kVA.
% Rated kW
The motor’s running power as a percentage of rated kW. Power
factor is assumed to be 1.0 at 100% kW.
Motor Parameter Set
Whether the starter is controllign the motor using the primary motor
set (M1) or the secondary motor set (M2).
Options:
Current (% FLC) (default)
Current as a percentage of motor full load current.
Motor Temp (%)
Motor temperature as a percentage of the motor's thermal capacity.
Motor kW (%)
Measured motor kilowatts, as a percentage of maximum kW.
Motor kVA (%)
Measured motor kilovolt amperes, as a percentage of maximum kVA.
Motor pf
Motor power factor, measured by the soft starter.
Measured motor kW:
factor
Maximum motor kW:
√3 x motor FLC x mains reference voltage. Power factor is assumed
to be 1
Measured motor kVA:
√3 x average current x mains reference voltage
Maximum motor kVA:
√3 x motor FLC x mains reference voltage
9B, 9C, 9D, 9E – User-Programmable Screen
Description: Selects which information will be displayed on the programmable monitoring screen.
• 9B User Screen - Top Left Default: Motor Current
• 9C User Screen - Top Right Default: Motor pf
• 9D User Screen - Bottom Left Default: Hours Run
9F – Graph Data
• 9E User Screen - Bottom Right Default: kWh
The Digistart D3 has a real-time performance graph to report the behaviour of critical operating parameters.
√3 x average current x mains reference voltage x measured power
Description: Selects which information the graph will display.
9G – Graph Timebase
Options: 10 seconds (default) 10 minutes
30 seconds 30 minutes
1 minute 1 hour
5 minutes
Description: Sets the graph time scale. The graph will progressively replace the old data with new data.
9H – Graph Maximum
Range: 0% – 600% Default: 400%
Description: Adjusts the upper limit of the performance graph.
9I – Graph Minimum
Range: 0% – 600% Default: 0%
Description: Adjusts the lower limit of the performance graph.
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Calibration (%) =
Current shown on Digistart D3 display
Current measured by external device
eg 102% =
66A
65A
Group
Trips
A
Current imbalance
Frequency
B
Underpower
Input B Trip
C
Motor Overload
Heatsink Overtemperature
9J, 9K – F1 and F2 Button Action
Options: None
Auto-Start/Stop Menu
Jog Forward
Jog Reverse
Description: Selects the function of the F1 and F2 buttons on the keypad.
The default setting for Pr 9J is Auto-Start/Stop menu. The default setting for Pr 9K is None.
NOTE
The access code is not required to use the F1 and F2 buttons. Users can access these functions
regardless of the setting of parameter 15C Adjustment Lock.
9L – Current Calibration
Range: 85% - 115% Default: 100%
Description: Calibrates the soft starter's current monitoring circuits to match an external current metering device.
Use the following formula to determine the necessary adjustment:
NOTE
This adjustment affects all current-based functions and protections.
9M – Display A or kW
Options: Current (default)
Motor kW
Description: Selects whether the Digistart D3 will display current (amperes) or motor kilowatts on the main
monitoring screen.
8.8.11 Group 10 - Auto-Reset
The Digistart D3 can be programmed to automatically reset certain trips, which can help minimise operating
downtime. Trips are divided into three categories for auto-reset, depending on the risk to the soft starter:
Other trips cannot be automatically reset.
10A – Auto-Reset Action
Options: Do Not Auto-Reset (default)
Description: Selects which trips can be auto-reset.
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Phase Loss
Power loss
Overpower
Input A Trip
RTD/PT100 temperature trips
Motor Thermistor
Reset Group A
Reset Group A & B
Reset Group A, B & C
10B – Maximum Resets
Range: 1 - 5 Default: 1
Description: Sets how many times the soft starter will auto-reset, if it continues to trip. The reset counter
increases by one each time the soft starter auto-resets, and decreases by one after each
successful start/stop cycle.
10C – Reset Delay Groups A&B
Range: 00:05 - 15:00 (minutes:seconds) Default: 5 seconds
Description: Sets the delay before resetting Group A and Group B trips.
10D – Reset Delay Group C
Range: 5 - 60 (minutes) Default: 5 minutes
Description: Sets the delay before resetting Group C trips.
8.8.12 Group 11 - Secondary Motor Settings
The Digistart D3 can support two different starting and stopping motor data sets.
• To use the Digistart D3 with two separate motors (such as a duty-standby configuration), use Pr 11B to
select dual thermal modelling and configure Pr 11A to 12N to suit the second motor.
• To use the Digistart D3 with two different motor data sets for the same motor (for dual speed motors or
applications where starting conditions may vary), use Pr 11B to select a single thermal model, and configure
the starting and stopping profiles as required in Pr 12A to 12N. The soft starter will ignore Pr 11A~11E and
will use settings from the primary motor.
To select the secondary motor data set, a programmable input must be configured to parameter set selection (Pr 3A
and 3F) and the input must be active when the soft starter receives a start signal.
For details of parameter options, see Group 1 - Primary Motor Settings on page 66.
NOTE
You can only choose which motor data set to use while the soft starter is stopped.
11A – Motor FLC-2
Range: Model dependent
Description: Sets the secondary motor's full load current.
11B – Dual Thermal Model
Options: Single (default)
Dual
Description: Activates dual thermal modelling. The dual thermal model is required only if the Digistart D3 is
11C – Locked Rotor Current-2
controlling two physically separate motors.
NOTE
The second thermal model is only active if Pr 11B Dual Thermal Model is set to 'Dual' and the starter is
using the secondary motor set (a programmable input is set to 'Motor Set Select' and the input is active).
Range: 400% - 1200% FLC Default: 600%
Description: Sets the locked rotor current of the connected motor, as a percentage of full load current. Set
according to the motor datasheet.
11D – Locked Rotor Time-2
Range: 0:01 - 2:00 (minutes:seconds) Default: 10 seconds
Description: Sets the maximum length of time the motor can sustain locked rotor current from cold before
reaching its maximum temperature. Set according to the motor datasheet.
11E – Motor Service Factor-2
Range: 100% - 130% FLC Default: 105%
Description: Sets the secondary motor's service factor.
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8.8.13 Group 12 - Start/Stop Modes-2
For details of soft start and stop control methods, see Soft start methods on page 48 and Stop methods.
For details of parameter options, see Group 2 - Start/Stop Modes-1 on page 66.
12A – Start Mode-2
Options: Constant Current (default)
Adaptive Control
Description: Selects the soft start mode.
12B – Current Limit-2
Range: 100% - 600% FLC Default: 350%
Description: Sets the current limit for constant current and current ramp soft starting, as a percentage of motor
12C – Initial Current-2
Range: 100% - 600% Default: 350%
Description: Sets the initial start current level for current ramp starting, as a percentage of motor full load
12D – Start Ramp Time-2
Range: 1 - 180 (seconds) Default: 10 seconds
Description: Sets the total start time for an Adaptive Control start or the ramp time for current ramp starting
12E – Adaptive Start Profile-2
Options: Early Acceleration
Description: Selects which profile the Digistart D3 will use for an Adaptive Control soft start.
12F – Kickstart Level-2
full load current.
current. Set so that the motor begins to accelerate immediately after a start is initiated.
If current ramp starting is not required, set the initial current equal to the current limit.
(from the initial current to the current limit).
Constant Acceleration (default)
Late Acceleration
Range: 100% - 700% FLC Default: 500%
Description: Sets the level of the kickstart current.
12G – Kickstart Time-2
Range: 0 - 2000 (milliseconds) Default: 0000 milliseconds
Description: Sets the kickstart duration. A setting of 0 disables kickstart.
12H – Stop Mode-2
Options: Coast To Stop (default)
TVR Soft Stop
Adaptive Control
Brake
Description: Selects the stop mode.
12I – Stop Time-2
Range: 0:00 - 4:00 (minutes:seconds) Default: 3 seconds
Description: Sets the stop time.
12J - Stop Delay-2
Range: 0:00 - 1:00 (minutes:seconds) Default: 0 seconds
Description: Sets a delay after the starter receives a stop command, before it stops the motor.
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12K – Adaptive Stop Profile-2
Options: Early Deceleration
Constant Deceleration (default)
Late Deceleration
Description: Selects which profile the Digistart D3 will use for an Adaptive Control soft stop.
12L – Adaptive Control Gain-2
Range: 1% - 200% Default: 75%
Description: Adjusts the performance of Adaptive Control. This setting affects both starting and stopping control.
12M – Brake Torque-2
Range: 20% - 100% Default: 20%
Description: Sets the amount of brake torque the Digistart D3 will use to slow the motor.
12N – Brake Time-2
Range: 1 - 30 (seconds) Default: 1 second
Description: Sets the duration for DC injection during a braking stop.
8.8.14 Group 13 - Slip Ring Motors
13A – Motor 1 Ramp
Options: Single Ramp (default)
Dual Ramp
Description: Selects whether to use a single or dual current ramp profile for soft starting. Set to single ramp for
13B – Motor 2 Ramp
Options: Single Ramp (default)
Description: Selects whether to use a single or dual current ramp profile for soft starting. Set to single ramp for
13C – Slip-Ring Retard
Range: 10% - 90% Default: 50%
Description: Sets the level of conduction after the rotor resistance contactor closes, as a percentage of full
13D – Changeover Time
Range: 100 - 500 (milliseconds) Default: 150 milliseconds
Description: Sets the delay between the rotor resistance relay closing and the low resistance current ramp
non-slip ring induction motors, or dual ramp for slip-ring induction motors.
Dual Ramp
non-slip ring induction motors, or dual ramp for slip-ring induction motors.
Pr 13B selects the ramp configuration for the secondary motor.
conduction.
Set so that no current pulse occurs, but the motor retains enough speed to start correctly.
starting. Set so that the contactor has enough time to close, but the motor does not slow down.
Pr 13D only applies if Pr 13A or 13B is set to 'Dual Ramp', and an output relay is set to
'Changeover Contactor'.
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Options:
Read & Write (default)
Allows users to alter parameter values in the Programming Menu.
Read Only
Prevents users altering parameter values in the Programming Menu.
Parameter values can still be viewed.
8.8.15 Group 14 - RTD/PT100
The Digistart D3 has one RTD/PT100 input and can be fitted with another six PT100 inputs by using the RTD/PT100
and ground fault protection card. The inputs can trip the soft starter when the temperature exceeds a specified point,
and different trip temperatures can be set for each input.
PT100 inputs B ~ G are only available if the RTD/PT100 and ground fault protection card has been installed.
Range: 0 - 250 ° C Default: 50 ° C
Description: Sets the trip points for the RTD/PT100 inputs.
• 14A RTD A Trip Temp
• 14B RTD B Trip Temp
• 14C RTD C Trip Temp
• 14D RTD D Trip Temp
• 14E RTD E Trip Temp
• 14F RTD F Trip Temp
• 14G RTD G Trip Temp
8.8.16 Group 15 - Restricted
15A – Access Code
Range: 0000 - 9999 Default: 0000
Description: Sets the access code to control access to restricted sections of the menus.
Use the and M buttons to select which digit to alter and use the and buttons to change
15B – Emergency Run
the value.
NOTE
In the event of a lost access code, contact your supplier for a master access code that allows you to
re-program a new access code.
Options: Disable (default)
Enable
Description: Selects whether the soft starter will permit emergency run operation. In emergency run, the soft
starter will start (if not already running) and continue to operate until emergency run ends, ignoring
stop commands and trips.
Emergency run is controlled using a programmable input.
CAUTION
Continued use of Emergency Run is not recommended. Emergency Run may compromise the starter life
as all protections and trips are disabled.
Using the starter in 'Emergency Run' mode will void the product warranty.
15C – Adjustment Lock
Description: Selects whether the keypad will allow parameters to be changed via the Programming Menu.
NOTE
Changes to the Adjustment Lock setting take effect only after the Programming Menu has been closed.
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15D – Shorted SCR Action
Options: 3-Phase Control Only (default)
PowerThrough
Description: Selects whether the soft starter will allow PowerThrough operation, if the soft starter is damaged on
one phase. The soft starter will use two-phase control, allowing the motor to continue operating in
critical applications.
PowerThrough is only available with in-line installations. If the starter is installed inside delta,
PowerThrough will not operate.
PowerThrough remains active until '3-Phase Control Only' is reselected.
A shorted SCR or a short within the bypass contactor will trip the starter on ‘Lx-Tx shorted’. If PowerThrough is
enabled, the trip can be reset and subsequent starts will use PowerThrough two-phase control; however not all
features will be available. The trip LED will flash and the display will indicate ‘2 Phase - Damaged SCR'.
CAUTION
PowerThrough uses a two-phase soft start technology and additional care is required when sizing circuit
15E – Jog Torque
breakers and protection. Contact your local supplier for assistance.
CAUTION
The starter will trip on Lx-Tx Shorted on the first start attempt after control power is applied. PowerThrough
will not operate if control power is cycled between starts.
PowerThrough operation does not support Adaptive Control soft starting or soft stopping. In
PowerThrough, the Digistart D3 will automatically select constant current soft starting and timed voltage
ramp soft stopping. If PowerThrough is enabled, Pr 2C and 2B must be set appropriately.
The Digistart D3 can jog the motor at a reduced speed, which allows precise positioning of belts and flywheels. Jog
can be used for either forward or reverse operation.
Range: 20% - 100% Default: 50%
Description: Sets the current limit for jog operation.
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8.8.17 Group 16 - Protection Action
These parameters define how the soft starter will respond to different protection events. The soft starter can trip,
issue a warning, or ignore different protection events as required. All protection events are written to the event log.
The default action for all protections is to trip the soft starter.
Protections 16P Ground Fault and 16R~16W RTD/PT100 are only available if the RTD/PT100 and ground fault
protection card has been fitted.
CAUTION
Defeating the protection may compromise the starter and motor, and should only be done in the case of
16A~16X - Protection Actions
Options: Trip Starter (default)
Description: Selects the soft starter's response to each protection.
emergency.
Warn and Log
Log Only
• 16A: Motor Overload
• 16B: Excess Start Time
• 16C: Current Imbalance
• 16D: Underpower
• 16E: Overpower
• 16F: Reserved
• 16G: Reserved
• 16H: Frequency
• 16I: Input A Trip
• 16J: Input B Trip
• 16K: Motor Thermistor
• 16L: Starter Communication
• 16M: Network Communication
• 16N: Heatsink Overtemperature
• 16O: Battery/Clock
• 16P: Ground Fault
• 16Q: RTD/PT100 A
• 16R: RTD/PT100 B
• 16S: RTD/PT100 C
• 16T: RTD/PT100 D
• 16U: RTD/PT100 E
• 16V: RTD/PT100 F
• 16W: RTD/PT100 G
• 16X: Low Control Volts
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Load Defaults
Restores the starter to the factory default settings for all parameters except Pr 9A
Language. This does not reset the access code.
Load Backup
Synchronises parameters between the starter and the keypad. See Synchronising the
Keypad and the Starter on page 44 for details of the synchronisation process.
Save User Set 1
Saves the current parameter settings to a file. This file contains default parameter
settings until a user file is saved.
Load User Set 1
Reloads the parameter settings from User Set 1.
Save User Set 2
Saves the current parameter settings to a file. This file contains default parameter
settings until a user file is saved.
Load User Set 2
Reloads the parameter settings from User Set 2.
1. Open the Programming Menu and select Setup Tools. Enter the access code.
2. Scroll to Reset Thermal Models and press M.
M
3. Use to select Reset and press M to confirm.
4. When the thermal model has been reset, the screen will display a confirmation
message then return to the previous screen.
8.9 Maintenance Tools
8.9.1 Setup tools
NOTE
These functions are protected by the access code (see Access Code on page 57).
Load/Save Settings
The Load/Save Settings menu requires an access code and allows users to:
• Load the Digistart D3's parameters with default values
• Load parameter settings from an internal file
• Save the current parameter settings to an internal file
In addition to the factory default values file, the Digistart D3 can store two user-defined parameter files. These files
contain default values until a user file is saved.
The available options are:
To load or save parameter settings, see Load defaults on page 57.
NOTE
The saved files and current operating settings are stored in both the keypad and in the soft starter. The
keypad will prompt you to synchronise the settings whenever it is plugged into a new Digistart D3.
Set date and time
To set the date and time:
1. Open the Programming Menu and select Setup Tools. Enter the access code.
2. Scroll to the date/time screen.
3. Press the M button to enter edit mode.
4. Press the M and buttons to select which part of the date or time to edit.
5. Use the
and buttons to change the value.
6. To save changes, press the M button. The Digistart D3 will confirm the changes.
To cancel changes, press the button.
Reset thermal models
The soft starter's thermal modelling software constantly monitors the motor's performance. This allows the starter to
calculate the motor's temperature and ability to start successfully at any time. If the Digistart D3 is configured for use
on two motors, each motor's temperature is modelled separately.
The thermal model for the active motor can be reset if required.
Reset Thermal Models
M1 X%
M2 X%
to Reset
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Do Not Reset
Reset
1. Open the Programming Menu and select Simulations.
2. Use the and buttons to select the protection you want to simulate.
3. Press and hold M to simulate the selected protection.
4. The screen is displayed momentarily. The soft starter's response
5. Use or to select another simulation, or press to exit.
1. Open the Programming Menu and select Simulations.
3. Press START or activate the start input. The Digistart D3 simulates its
M
M
NOTE
This action will reset both thermal models.
NOTE
The second thermal model is only active if Pr 11B Dual Thermal Model is set to 'Dual' and the starter is
using the secondary motor set (a programmable input is set to 'Motor Set Select' and the input is active).
CAUTION
Resetting the motor thermal model will compromise thermal model protection and may compromise motor
life. Only reset the thermal model in an emergency.
8.9.2 Simulations
Software simulation functions let you test the soft starter's operation and control circuits without connecting the soft
starter to mains voltage. The simulations are accessed via the Simulations menu.
The Digistart D3 has three simulation functions:
• The protection simulation simulates activation of each protection mechanism to confirm that the soft starter
and associated control circuits are responding correctly. See Protection Simulation for details.
• The run simulation simulates a motor starting, running and stopping to confirm that the soft starter and
associated equipment have been installed correctly. The run simulation follows the protection simulations in
the Simulations menu. See Run Simulation on page 87 for details.
• The output signal simulation simulates output signalling to confirm that outputs and associated control
circuits are operating correctly. The output signal simulation follows the run simulation in the Simulations
menu. See Output signal simulations on page 88 for details.
The simulations are only available when the soft starter is in Ready state, control voltage is available and the keypad
is active.
NOTE
Access to the simulation tools is protected by the access code (see Access Code on page 57).
Protection Simulation
To use the protection simulation:
The default access code is 0000.
0.0A
depends on the Protection Action setting (parameter group 16).
Tripped
Selected Protection
Run Simulation
You can end the simulation at any time by pressing .
To use the run simulation:
Run Simulation
2. Scroll to Run Simulation and press M.
pre-start checks and closes the main contactor relay. The Run LED
flashes.
NOTE
If mains voltage is connected, an error message is shown.
Remove mains voltage and proceed to the next step.
Digistart D3: User Guide 87
Issue: G
Ready
Apply Start Signal
Run Simulation
Pre-Start Checks
Run Simulation
to Continue
ATTENTION!
Remove Mains Volts
to Continue
4. Press M. The Digistart D3 simulates starting. The Run LED flashes.
M
5. Press M. The Digistart D3 simulates running. The Run LED stays on
6. Press STOP or activate the stop input. The Digistart D3 simulates
M
7. Press M. The Ready LED flashes and the main contactor relay opens.
M
8. Press M to return to the commissioning menu.
1. Open the Menu and select Simulation.
2. Use the and buttons to select a function to simulate, then press
M
3. Use the and buttons to turn the signal on and off.
4. Press to return to the simulation list.
Run Simulation
Starting X:XXs
to Continue
without flashing and the bypass contactor relay closes.
Run Simulation
Running
Apply Stop Signal
Run Simulation
stopping. The Run LED flashes and the bypass contactor relay opens.
Stopping X:XXs
Run Simulation
to Continue
Stopped
to Continue
Testing the Installation
The Digistart D3 can be connected to a small motor for testing. During this test, the soft starter's control input and
relay output protection settings can be tested. This test mode is not suitable for testing soft starting or soft stopping
performance.
The FLC of the test motor must be at least 2% of the soft starter's minimum FLC (see Minimum and Maximum
Current Settings on page 13).
NOTE
When testing the soft starter with a small motor, set Pr 1A Motor Full Load Current to the minimum
allowable value.
Output signal simulations
The following outputs are available to simulate:
• Programmable relay A
• Programmable relay B
• Programmable relay C
• Run relay
• Low Current Flag
• High Current Flag
• Motor Temperature Flag
• Analog output A
• Analog output B
NOTE
To test operation of the flags (motor temperature and low/high current), set an output relay to the
appropriate function and monitor the relay's behaviour.
To use the signal simulation:
.
To confirm correct operation, monitor the state of the output.
88 Digistart D3: User Guide
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Prog Relay A
Off
On
The analog output simulation uses the and buttons to change the current
This screen shows the current status of the Analog I/O
This screen shows the current status of the digital inputs and outputs.
This screen shows the state of the motor thermistors and RTD/PT100s.
Analog Output A
at the analog output terminals.
0%
4.0mA
Attach a current measuring device to the analog output terminals. Use the or button to adjust the percentage
value on the display. The current measuring device should indicate the same level of current as shown on the
display.
If the input/output expansion card is fitted, the simulation can also be used to test the operation of Relays D, E, F and
Analog Output B.
8.9.3 I/O state
Analog I/O State
Analog I/O State
Input: - - - - %
This screen will also show Analog Output B if the expansion card is fitted.
Output A: 04.0mA
Digital I/O State
Digital I/O State
Inputs: 0110000
The top line of the screen shows the start, stop, reset and programmable inputs (A and B, then inputs on the I/O
expansion card (if fitted).
The bottom line of the screen shows programmable output A, the fixed Run output, programmable outputs B and C,
then the outputs on the expansion card (if fitted).
Temperature Sensors State
S = Short
H = Hot
C = Cold
O = Open
RTD/PT100s B ~ G are only available if the RTD/PT100 and Ground Fault expansion card is fitted.
Outputs: 0000100
Temp Sensors State
Thermistor: 0
RTD/PT100s:OOOOOOO
S = Shrt H=Hot C=Cld O=Opn
8.9.4 Logs Menu
The Logs Menu provides information on events, trips and starter performance.
To open the Logs Menu, press the M button, then scroll to Logs and press M again.
Trip Log
The Trip Log stores details of the eight most recent trips, including the date and time the trip happened. Trip 1 is the
most recent and trip 8 is the oldest stored trip.
To open the Trip Log:
1. Open the Logs Menu.
2. Scroll to Trip Log and press M.
3. Use the and buttons to select a trip to view, and press M to display details.
To close the log and return to the main display, press
Event Log
The Event Log stores time-stamped details of the starter's 99 most recent events (actions, warnings and trips),
including the date and time of the event. Event 1 is the most recent and event 99 is the oldest stored event.
To open the Event Log:
1. Open the Logs Menu.
2. Scroll to Event Log and press M.
3. Use the and buttons to select an event to view, and press M to display details.
To close the log and return to the main display, press
repeatedly.
repeatedly.
Issue: G
Digistart D3: User Guide 89
8.9.5 Performance Counters
The performance counters store statistics on the starter's operation:
• Hours run (lifetime and since counter last reset)
• Number of starts (lifetime and since counter last reset)
• Motor kWh (lifetime and since counter last reset)
• Number of times the thermal model has been reset
The resettable counters (hours run, starts and motor kWh) can only be reset if the Adjustment Lock (Pr 15C) is set to
Read & Write.
To view the counters:
1. Open the Programming Menu and select Counters.
2. Use the and buttons to scroll through the counters. Press M to view details.
3. To reset a counter, press M then press M to confirm the action.
To return to the previous level, press
NOTE
The reset counters function is protected by the access code.
.
90 Digistart D3: User Guide
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The Digistart D3 is not user serviceable. The unit should only be serviced by authorised service personnel.
Display
Possible cause/Suggested solution
This message is displayed if the soft starter tripped on “ Lx-Tx shorted” during the pre-start
Related Pr: 15D
This fault only occurs if the Input/Output expansion card is fitted. Identify and resolve the
Related Pr: 8A, 8B, 8C
A verification error has occurred on the real time clock, or the backup battery voltage is low. If
Related Pr: 16O
Current imbalance can be caused by problems with the motor, the environment or the
Please contact Nidec or your local distributor.
Where 'X' is 1, 2 or 3.
Related Pr: None
9 Diagnostics
NOTE
Unauthorised tampering with the unit will void the product warranty.
9.1 Protection Responses
When a protection condition is detected, the Digistart D3 will write this to the event log and may also trip or issue a
warning. The soft starter's response depends on the Protection Action setting (parameter group 16).
Some protection responses cannot be adjusted by the user. These trips are usually caused by external events (such
as phase loss) or by a fault within the soft starter. These trips do not have associated parameters and cannot be set
to Warn or Log.
If the Digistart D3 trips you will need to identify and clear the condition that triggered the trip, then reset the soft
starter before restarting. To reset the starter, press the RESET button on the keypad or activate the Reset remote
input.
If the Digistart D3 has issued a warning, the soft starter will reset itself once the cause of the warning has been
resolved.
9.2 Trip Messages
This table lists the soft starter's protection mechanisms and the probable cause of the trip. Some of these can be
adjusted using parameter group 5 Protection Settings and parameter group 16 Protection Action, other settings are
built-in system protections and cannot be set or adjusted.
2 Phase - Damaged SCR
checks and PowerThrough is enabled. It indicates that the starter now operates in
PowerThough mode (2-phase control only).
Check for either a shorted SCR or a short within the bypass contactor.
Analog input trip
condition which caused Analog Input A to activate.
Battery/clock
the battery is low and the power is off, date/time settings will be lost. The Digistart D3 will
continue to soft start and soft stop correctly. Reprogram the date and time.
The battery is not removable. In order to replace the battery, the main control PCB must be
replaced.
Current imbalance
installation, such as:
• An imbalance in the incoming mains voltage
• A problem with the motor windings
• A light load on the motor
• A phase loss on input terminals L1, L2 or L3 during Run mode
• An SCR that has failed open circuit. A failed SCR can only be definitely diagnosed by
replacing the SCR and checking the starter's performance.
Related Pr: 5C, 6A, 16C
Current Read Err Lx
Internal fault (PCB fault). The output from the CT circuit is not close enough to zero when the
SCRs are turned off. Contact your local supplier for advice.
This trip is not adjustable.
Digistart D3: User Guide 91
Issue: G
Display
Possible cause/Suggested solution
Excess start time trip can occur in the following conditions:
Related Pr: 1A, 2B, 2D, 5A, 5B, 11A, 12B, 12D, 16B
Where 'X' is phase 1, 2 or 3.
Related Pr: None
This trip is not adjustable.
The Digistart D3 can support higher motor full load current values when connected to the motor
If the soft starter is connected to the motor using inside delta configuration, the soft starter may
Related Pr: 1A, 11A
The mains frequency has gone beyond the specified range.
Related Pr: 5I, 5J, 6F, 16H
This fault only occurs if the RTD/Ground Fault card is fitted. Test the insulation of the output
Related Pr: 5K, 6H, 16P
Check if cooling fans are operating. If mounted in an enclosure, check if ventilation is
Models with fans will operate the cooling fans from a Start until 10 minutes after a
Related Pr: 16N
This is a name selected for a programmable input. See Input A trip.
This is a name selected for a programmable input. See Input A trip.
One of the soft starter's inputs is set to a trip function and has activated. Check the status of
Related Pr: 3A, 3B, 3C, 3D, 3E, 3F, 3G, 3H, 3I, 3J, 16I, 16J
• Current to the motor has exceeded the soft starter's built-in trip points:
Related Pr: None
This trip is not adjustable.
Related Pr: None
Excess start time
Firing Fail Px
FLC too high
Frequency
• Pr 1A Motor Full Load Current is not appropriate for the motor
• Pr 2B Current Limit has been set too low
• Pr 2D Start Ramp Time has been set greater than the setting for 5A Excess Start Time
setting
• Pr 2D Start Ramp Time is set too short for a high inertia load when using Adaptive Control
The SCR did not fire as expected. The SCR may be faulty or there may be an internal wiring
fault.
This trip is not adjustable.
using inside delta configuration rather than in-line connection. If the soft starter is connected
in-line but the programmed setting for Pr 1A Motor Full Load Current is above the in-line
maximum, the soft starter will trip at start (see Minimum and Maximum Current Settings on
page 13).
not be correctly detecting the connection. Contact your local supplier for advice.
Check for other equipment in the area that could be affecting the mains supply, particularly
variable speed drives and switch mode power supplies (SMPS).
If the Digistart D3 is connected to a generator set supply, the generator may be too small or
could have a speed regulation problem.
This trip is not adjustable.
Ground fault
Heatsink overtemperature
High Level
High Pressure
Input trip
Instantaneous overcurrent
Internal fault X
cables and the motor. Identify and resolve the cause of any ground fault.
adequate.
Fans operate during Start, Run and for 10 minutes after the starter exits the Stop state.
NOTE
Models D3-0023-B to D3-0053-B and D3-0170-B do not have a cooling fan.
Stop.
the inputs to identify which input has activated, then resolve the trigger condition.
- 7.2 times the Pr 1A Motor Full Load Current
- 6 times the starter's nominal current rating
Causes can include a locked rotor condition or an electrical fault in the motor or cabling.
This trip is not adjustable.
The Digistart D3 has tripped on an internal fault. Contact your local supplier with the fault code
(X).
92 Digistart D3: User Guide
Issue: G
Display
Possible cause/Suggested solution
This trip is not adjustable.
Please contact Nidec or your local distributor.
During pre-start checks the starter has detected a shorted SCR or a short within the bypass
Related Pr: 15D
The Digistart D3 has detected a drop in the internal control voltage.
Related Pr: 16X
This is a name selected for a programmable input. See Input A trip.
This is a name selected for a programmable input. See Input A trip.
The motor has reached its maximum thermal capacity. Overload can be caused by:
Related Pr: 1A, 1B, 1C, 1D, 16A
See 'Motor overload' above.
Related Pr: 11A, 11B, 11C, 11D, 11E, 16A
Where 'X' is 1, 2 or 3.
Related Pr: None
The motor thermistor input has been enabled and:
Related Pr: 16K
L1 phase loss
L2 phase loss
L3 phase loss
L1-T1 shorted
L2-T2 shorted
L3-T3 shorted
Low Control Volts
During pre-start checks the starter has detected a phase loss as indicated.
In run state, the starter has detected that the current on the affected phase has dropped below
2% of the programmed motor FLC for more than 1 second, indicating that either the incoming
phase or connection to the motor has been lost.
Check the supply and the input and output connections at the starter and at the motor end.
Related Pr: None
contactor as indicated. If the starter is connected in-line with the motor, consider using
PowerThrough to allow operation until the starter can be repaired.
NOTE
PowerThrough is only available with in-line installations. If the starter is installed
inside delta, PowerThrough will not operate.
The starter will trip on Lx-Tx Shorted on the first start attempt after control power
is applied. PowerThrough will not operate if control power is cycled between
starts.
• Check the external control supply (CSH, CSL, CSR) and reset the starter.
If the external control supply is stable:
• the 24 V supply on the main control PCB may be faulty; or
• the bypass driver PCB may be faulty (internally bypassed models only). Contact your local
supplier for advice.
This protection is not active in Ready state.
Low Level
Low Pressure
Motor overload
• The soft starter protection settings not matching the motor thermal capacity
• Excessive starts per hour or start duration
• Excessive current
• Damage to the motor windings
Resolve the cause of the overload and allow the motor to cool.
Motor 2 overload
NOTE
Applicable only if the second motor set has been programmed.
Motor Connection Tx
The motor is not connected correctly to the soft starter.
• Check individual motor connections to the soft starter for power circuit continuity.
• Check connections at the motor terminal box.
This trip is not adjustable.
Motor thermistor
• The resistance at the thermistor input has exceeded 3.6 kΩ for more than one second.
• The motor winding has overheated. Identify the cause of the overheating and allow the
motor to cool before restarting.
• The motor thermistor input has been opened.
NOTE
If a valid motor thermistor is no longer used, a 1.2 kΩ resistor must be fitted across
terminals TH1, TH2.
Digistart D3: User Guide 93
Issue: G
Display
Possible cause/Suggested solution
There is a network communication problem, or the network master may have sent a trip
This is a name selected for a programmable input. See Input A trip.
The motor has experienced a sharp rise in power. Causes can include a momentary overload
Related Pr: 5F, 6C, 16E
This trip is not adjustable.
Related Pr: None
The phase sequence on the soft starter's input terminals (L1, L2, L3) is not valid.
Related Pr: 5D
This is a name selected for a programmable input. See Input A trip.
This trip is not adjustable.
Related Pr: None
This is a name selected for a programmable input. See Input A trip.
The RTD/PT100 set temperature has been exceeded and tripped the soft starter. Identify and
a RTD/PT100 and Ground Fault
Related Pr: 14A, 14B, 14C, 14D, 14E, 14F, 14G, 16Q ~ 16W
Indicates that the indicated RTD/PT100 has short circuited. Check and resolve this condition.
Related Pr: None
There is a problem with the connection between the soft starter and the optional
Related Pr: 16L
This is a name selected for a programmable input. See Input A trip.
The thermistor input has been enabled and:
Related Pr: None
The Digistart D3 is internally bypassed and has drawn high current during running. (The 10A
protection curve trip has been reached or the motor current has risen to 600% of the motor FLC
Related Pr: None
Network communication
(between device and
network)
No Flow
Overpower
Parameter out of range
Phase sequence
PLC
Power loss
command to the starter. Check the network for causes of communication inactivity.
Related Pr: 16M
condition which has exceeded the adjustable delay time.
• A parameter value is outside the valid range.
The keypad will indicate the first invalid parameter.
• An error occurred loading data from the EEPROM to RAM when the keypad powered up.
• The parameter set or values in the keypad do not match the parameters in the starter.
• "Load User Set" has been selected but no saved file is available.
Reset the fault. The starter will load the default settings. If the problem persists, contact your
local distributor.
Check the phase sequence on L1, L2, L3 and ensure the setting in Pr 5D is suitable for the
installation.
The starter is not receiving mains supply on one or more phases when a Start Command is
given.
Check that the main contactor closes when a start command is given, and remains closed until
the end of a soft stop. Check the fuses. If testing the soft starter with a small motor, it must
draw at least 2% of its minimum FLC setting on each phase.
Pump Fault
RTD/PT100 A
RTD/PT100 B~G
RTD/PT100 X Circt
Starter communication
(between device and soft
starter)
Starter Disable
Thermistor Cct (Thermistor
circuit)
Time-overcurrent
resolve the condition which caused the appropriate input to activate.
NOTE
PT100 B to PT100 G are applicable only if
card is fitted.
•
communications module. Remove and reinstall the module. If the problem persists,
contact your local distributor.
• There is an internal communications error within the soft starter. Contact your local
distributor.
• The resistance at the input has fallen below 20 Ω (the cold resistance of most thermistors
will be over this value) or
• A short circuit has occurred. Check and resolve this condition.
setting.)
94 Digistart D3: User Guide
Issue: G
Display
Possible cause/Suggested solution
The motor has experienced a sharp drop in power, caused by loss of load. Causes can include
Related Pr: 5E, 6B, 16D
This trip is not adjustable.
This is a name selected for a programmable input. See Input A trip.
Where 'X' is 1, 2 or 3.
Related Pr: None
Symptom
Probable Cause
Starter "Not Ready"
Check Input A (DI4, +24V). The starter may be disabled via a
an open circuit on the corresponding input, the Digistart D3 will not start.
The soft starter does not respond to
keypad.
The soft starter may be in Remote control mode. When the soft starter is
LCL/RMT button once to change to Local control.
The soft starter does not respond to
The soft starter may be in Local control mode. When the soft starter is in
LED should activate on the starter.
The soft starter does not respond to a
The soft starter may be waiting for the restart delay to elapse. The length
NOTE
A reset does not occur after an
two-wire control.
The remote 2-wire start signal must be removed and reapplied for a
Non-resettable Thermistor Cct trip,
The thermistor input is enabled once a link is fitted and short circuit
- Turn thermistor protection to 'Log only' (Pr 16K).
Underpower
broken components (shafts, belts or couplings), or a pump running dry.
Unsupported option
(function not available in
inside delta)
The selected function is not available (eg jog is not supported in inside delta configuration).
Related Pr: None
Vibration
VZC Fail Px
Internal fault (PCB fault). Contact your local supplier for advice.
This trip is not adjustable.
9.3 General Faults
This table describes situations where the soft starter does not operate as expected but does not trip or give a
warning.
•
programmable input. If Pr 3A or 3F is set to Starter Disable and there is
•
the START or RESET button on the
in Remote control mode, the Local LED on the starter is off. Press the
commands from the control inputs.
start command from either the local or
remote controls.
Auto-Reset, when using a remote
•
Local control mode, the Local LED on the starter is on. Press the
LCL/RMT button once to change to Remote control.
• The control wiring may be incorrect. Check that the remote start, stop
and reset inputs are configured correctly (see Start/Stop control logic on
page 24 for details).
• The signals to the remote inputs may be incorrect. Test the signalling by
activating each input signal in turn. The appropriate remote control input
•
of the restart delay is controlled by Pr 6G Restart Delay.
• The motor may be too hot to permit a start. If Pr 5L Motor Temperature
Check is set to Check, the soft starter will only permit a start when it
calculates that the motor has sufficient thermal capacity to complete the
start successfully. Wait for the motor to cool before attempting another
start.
• The starter may be disabled via a programmable input. If Pr 3A or 3F is
set to Starter Disable and there is an open circuit on the corresponding
input, the Digistart D3 will not start. If there is no further need to disable
the starter, close the circuit on the input.
Pr 3M Local/Remote controls when the LCL/RMT button is
enabled.
•
re-start.
•
when there is a link between the
thermistor input TH1, TH2 or when
the motor thermistor connected
between TH1, TH2 is permanently
protection has activated.
- Remove the link then load the default parameter set. This will
disable the thermistor input and clear the trip.
- Place a 1k2 Ω resistor across the thermistor input.
removed.
Digistart D3: User Guide 95
Issue: G
Symptom
Probable Cause
Remote start/stop command is
when using remote two-wire control.
Auto Start/Stop should only be used in remote mode with three-wire or
The soft starter does not control the
• Start performance may be unstable when using a low Motor Full Load
Power factor correction (PFC) capacitors must be installed on the supply
Motor does not reach full speed.
If the start current is too low, the motor will not produce enough torque to
NOTE
Make sure the motor starting parameters are appropriate for the
check that the corresponding input is in the expected state.
rotor situation.
Erratic motor operation.
The SCRs in the Digistart D3 require at least 5 A of current to latch. If
5 A, the SCRs may not latch correctly.
Erratic and noisy motor operation.
• If the soft starter is connected to the motor using inside delta
connection. Contact your local supplier for advice.
Soft stop ends too quickly.
The soft stop settings may not be appropriate for the motor and load.
If the motor is very lightly loaded, soft stop will have limited effect.
Adaptive Control, brake, jog and
These features are only available with in-line installation. If the Digistart
After selecting Adaptive Control the
first.
The first Adaptive Control start is actually 'Constant Current' so that the
PowerThrough does not operate
The starter will trip on Lx-Tx Shorted on the first start attempt after
is cycled between starts.
Starter "awaiting data"
• The keypad is not receiving data from the control PCB. Check the cable
connection and the fitting of the display on the starter.
Corrupted text shown on keypad
display.
The keypad may not be screwed down, resulting in an intermittent
connection. Screw down the keypad or hold squarely in place.
Display is distorted
• Check that the keypad has not been screwed down too tightly. Loosen
screws slightly.
Parameter settings cannot be stored.
Make sure you are saving the new value by pressing the M button after
out of range. Contact your local supplier for advice.
ATTENTION! Remove Mains Volts
The soft starter will not activate Run Simulation with three-phase power
Line fuses blown.
Check the fuse rating and ensure that the selected starting method
matches with the application.
overriding Auto Start/Stop settings
•
four-wire control.
motor correctly during starting.
PowerThrough functions not working.
motor used an ordinary start and/or
the second start was different to the
Current setting (Pr 1A).
•
side of the soft starter and must be disconnected during starting and
stopping. To control a dedicated PFC capacitor contactor, connect the
contactor to run relay terminals.
•
accelerate to full speed. The soft starter may trip on excess start time.
application and that you are using the intended motor starting
profile. If a programmable input is set to Motor Set Select,
The load may be jammed. Check the load for severe overloading or a locked
•
you are testing the soft starter on a motor with full load current less than
configuration, the soft starter may not be correctly detecting the
•
Review the soft stop settings.
•
•
D3 is installed inside delta, these features will not operate.
•
starter can learn from the motor characteristics. Subsequent starts use
Adaptive Control.
•
when selected.
control power is applied. PowerThrough will not operate if control power
•
•
adjusting a parameter setting. If you press , the change will not be
saved.
• Check that the adjustment lock (Pr 15C) is set to Read & Write. If the
adjustment lock is set to Read Only, settings can be viewed but not
changed. You need to know the security access code to change the
adjustment lock setting.
• The EEPROM may be faulty on the keypad. A faulty EEPROM will also
trip the soft starter, and the keypad will display the message Parameter
•
96 Digistart D3: User Guide
Issue: G
connected. This prevents unintentional direct on-line (DOL) start.
•
RLC3
COM3
COM1
RLO1
+24V
0V
RLO2
COM2
RLO3
AO1
0V
COM4
RLC4
RLO4
TH2
TH1
DI2
+24V
DI3
+24V
DI4
+24V
+24V
+24V
DI5
PT4
PT5
PT3
CSR
CSL
CSH
DI1
E
110-210VAC
+10%
-15%
220-440VAC
+10%
-15%
6/T3
2/T1
4/T2
5/L3
3/L2
1/L1
E
7
6
4
3
2
1
8
9
5
1
Control voltage
2
Remote control inputs
3
Motor thermistor input
4
RTD/PT100 input
5
24 VDC output
6
Relay outputs
7
Analog output
8
Three-phase supply
9
Motor terminals
K1
Main contactor
F1
Semiconductor fuses
(optional)
S1
Start/stop contact
S2
Reset contact
COM1,
RLO1
Relay output A
COM2,
RLO2
Run relay output
COM3,
RLO3
Relay output B
COM4,
RLO4
Relay output C
10 Application Examples
A selection of Application Notes are available describing advanced installation or configuration of the Digistart D3 for
situations with specific performance requirements. Application notes are available for situations including brake and
jog operation, pumping and advanced protection options.
10.1 Installation with Main Contactor
The Digistart D3 is installed with a main contactor (AC3 rated). Control voltage must be supplied from the input side
of the contactor.
The main contactor is controlled by the Digistart D3 Main Contactor output, which by default is assigned to Output
Relay A (terminals COM1, RLO1).
Parameter settings:
• Pr 4A Relay A Action
• Select 'Main Contactor' - assigns the Main Contactor function to Relay Output A (default setting)
RLC3,
RLC4,
Digistart D3: User Guide 97
Issue: G
08534.B
7
6
5
3
2
1
1
4
8
9
K1
RLC3
COM3
6/T3
2/T1
COM1
RLO1
+24V
0V
4/T2
RLO2
COM2
RLO3
AO1
0V
COM4
RLC4
RLO4
TH2
TH1
DI2
+24V
DI3
+24V
DI4
+24V
+24V
+24V
DI5
PT4
PT5
PT3
CSR
CSL
CSH
5/L3
3/L2
DI1
1/L1
K1
F1
E
110-210VAC
+10%
-15%
220-440VAC
+10%
-15%
E
1
Control voltage
2
Remote control inputs
3
Motor thermistor input
4
RTD/PT100 input
5
24 VDC output
6
Relay outputs
7
Analog output
8
Three-phase supply
9
Motor terminals
K1
Bypass contactor (external)
F1
Semiconductor fuses (optional)
S1
Start contact
S2
Stop contact
S3
Reset contact
COM1,
RLO1
Relay output A
COM2,
RLO2
Run relay output
COM3,
RLO3
Relay output B
COM4,
RLO4
Relay output C
10.2 Installation with External Bypass Contactor
The Digistart D3 is installed with an external bypass contactor (AC1 rated). The bypass contactor is controlled by the
Digistart D3 Run Output (terminals COM2, RLO2).
RLC3,
RLC4,
Parameter settings:
• No special settings required.
98 Digistart D3: User Guide
Issue: G
RLC3
COM3
COM1
RLO1
+24V
0V
RLO2
COM2
RLO3
AO1
0V
COM4
RLC4
RLO4
TH2
TH1
DI2
+24V
DI3
+24V
DI4
+24V
+24V
+24V
DI5
PT4
PT5
PT3
CSR
CSL
CSH
DI1
E
1
10-210V
AC
+10%
-15%
220-440
VAC
+10%
-15%
6/T3
2/T1
4/T2
5/L3
3/L2
1/L1
E
08535.B
7
6
5
4
3
2
1
8
9
1
Control voltage
2
Remote control inputs
3
Motor thermistor input
4
RTD/PT100 input
5
24 VDC output
6
Relay outputs
7
Analog output
8
Three-phase supply
9
Motor terminals
S1
Start/stop contact
S2
Reset contact
S3
Emergency Run Contact
F1
Semiconductor fuses
(optional)
COM1,
RLO1
Relay output A
COM2,
RLO2
Run relay output
COM3,
RLO3
Relay output B
COM4,
RLO4
Relay output C
10.3 Emergency Run Operation
In normal operation the Digistart D3 is controlled via a remote two-wire signal (terminals DI2, +24V).
Emergency Run is controlled by a two-wire circuit connected to Input A (terminals DI4, +24V). Closing Input A causes
the Digistart D3 to run the motor and ignore certain trip conditions.
NOTE
Although the Emergency Run satisfies the functionality requirements of Fire Mode, Nidec does not
recommend its use in situations that require testing and/or compliance with specific standards as it is not
certified.
CAUTION
Continued use of Emergency Run is not recommended. Emergency Run may compromise the starter life
as all protections and trips are disabled.
Using the starter in 'Emergency Run' mode will void the product warranty.
Parameter settings:
Digistart D3: User Guide 99
Issue: G
• Pr 3A Input A Function
• Pr 15B Emergency Run
RLC3,
RLC4,
• Select 'Emergency Run' - assigns Input A for Emergency Run function.
• Select 'Enable' - Enables Emergency Run mode.
6/T3
2/T1
4/T2
5/L3
3/L2
1/L1
RLC3
COM3
COM1
RLO1
+24V
0V
RLO2
COM2
RLO3
AO1
0V
COM4
RLC4
RLO4
TH2
TH1
DI2
+24V
DI3
+24V
DI4
+24V
+24V
+24V
DI5
PT4
PT5
PT3
CSR
CSL
CSH
DI1
E
E
110-210VAC
+10%
-15%
220-440VAC
+10%
-15%
7
6
4
3
2
1
8
9
5
08536.B
1
Control voltage
2
Remote control inputs
3
Motor thermistor input
4
RTD/PT100 input
5
24 VDC output
6
Relay outputs
7
Analog output
8
Three-phase supply
9
Motor terminals
S1
Start/stop contact
S2
Reset contact
S3
Auxiliary trip contact
F1
Semiconductor fuses
(optional)
COM1, RLO1
Relay output A
COM2, RLO2
Run relay output
COM3,
RLC3, RLO3
Relay output B
COM4,
RLC4, RLO4
Relay output C
10.4 Auxiliary Trip Circuit
In normal operation the Digistart D3 is controlled via a remote two-wire signal (terminals DI2, +24V).
Input A (terminals DI4, +24V) is connected to an external trip circuit (such as a low pressure alarm switch for a
pumping system). When the external circuit activates, the soft starter trips, which stops the motor.
100 Digistart D3: User Guide
Issue: G
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