Page 1
vacon®20 x
ac drives
Installation, Technical and Maintenance
Manual
Page 2
Page 3
vacon • 3
INDEX
Document code (Original Instructions): DPD00992L
Order code: DOC-INS06663+DLUK
Revision release date: 9.12.21
1. Safety................................................................................................................6
1.1 Signs....................................................................................................................................6
1.2 Units ....................................................................................................................................6
1.3 Danger.................................................................................................................................7
1.4 Warnings .............................................................................................................................7
1.5 Grounding and earth fault protection.................................................................................9
1.6 Insulation system..............................................................................................................11
1.7 Compatibility with RCDs ...................................................................................................12
1.8 Extended temperature range ...........................................................................................13
2. Receipt of delivery ..........................................................................................14
2.1 Type designation code.......................................................................................................15
2.2 Order codes.......................................................................................................................16
2.3 Unpacking and lifting the AC drive ...................................................................................17
2.4 Accessories .......................................................................................................................17
2.4.1 ‘Product modified’ sticker.................................................................................................18
2.4.2 Disposal.............................................................................................................................18
3. Mounting......................................................................................................... 19
3.1 Dimensions .......................................................................................................................19
3.1.1 Enclosure MU2 and MU3 ..................................................................................................19
3.2 Cooling ..............................................................................................................................21
4. Power cabling ................................................................................................. 23
4.1 Circuit breaker ..................................................................................................................25
4.2 UL standards on cabling...................................................................................................25
4.3 Description of the terminals .............................................................................................26
4.3.1 MU2 three-phase version power connections..................................................................26
4.3.2 MU2 single-phase version power connections ................................................................27
4.3.3 MU3 power connections....................................................................................................28
4.4 Cable dimensioning and selection....................................................................................29
4.4.1 Cable and fuse sizes, enclosures MU2 and MU3 .............................................................29
4.4.2 Cable and fuse sizes, enclosures MU2 and MU3, North America ...................................30
4.4.3 Recommended fuse sizes for group installation..............................................................31
4.5 Brake resistor cables........................................................................................................31
4.6 Control cables ...................................................................................................................31
4.7 Cable installation ..............................................................................................................31
4.8 Wiring way .........................................................................................................................39
5. Control unit.....................................................................................................40
5.1 Opening the drives ............................................................................................................40
5.2 Control units MU2 and MU3..............................................................................................42
5.3 Control unit cabling...........................................................................................................44
5.3.1 Control cable sizing ..........................................................................................................44
5.3.2 Standard I/O terminals .....................................................................................................45
5.3.3 Relay terminals .................................................................................................................46
5.3.4 Safe Torque off (STO) terminals .......................................................................................46
5.3.5 Description of additional echo connectors .......................................................................47
5.3.6 Led handling......................................................................................................................49
5.3.7 Selection of terminal functions with dip switches ...........................................................50
5.4 Fieldbus connection..........................................................................................................51
5.4.1 Modbus RTU protocol .......................................................................................................52
Rev. L
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Page 4
vacon • 4
5.4.2 Preparation for use through RS485..................................................................................53
6. Commissioning ...............................................................................................54
6.1 Commissioning of the drive ..............................................................................................55
6.2 Changing EMC protection class........................................................................................56
6.2.1 Changing EMC protection class - MU2 three-phase version...........................................56
6.2.2 Changing EMC protection class - MU2 single-phase version..........................................58
6.2.3 Changing EMC protection class - MU3.............................................................................59
6.3 Running the motor ............................................................................................................60
6.3.1 Cable and motor insulation checks ..................................................................................60
6.4 Maintenance......................................................................................................................61
6.4.1 Recharging capacitors in stored units..............................................................................61
7. Technical data.................................................................................................62
7.1 AC drive power ratings......................................................................................................62
7.1.1 Mains voltage 3AC 208-240V.............................................................................................62
7.1.2 Mains voltage 1AC 208-240V.............................................................................................62
7.1.3 Mains voltage 3AC 380-480V.............................................................................................63
7.1.4 Definitions of overloadability ............................................................................................63
7.2 Brake resistor ratings.......................................................................................................64
7.3 VACON® 20 X - technical data..........................................................................................65
7.3.1 Technical information on control connections.................................................................68
8. Options............................................................................................................ 70
8.1 VACON® keypad with seven-segment display.................................................................70
8.1.1 Mounting onto the drive ....................................................................................................71
8.1.2 Text Keypad - buttons .......................................................................................................74
8.2 Text keypad .......................................................................................................................75
8.3 Menu structure .................................................................................................................75
8.4 Using the keypad...............................................................................................................76
8.4.1 Main menu.........................................................................................................................76
8.4.2 Resetting fault...................................................................................................................77
8.4.3 Local/Remote control button............................................................................................77
8.4.4 Reference menu................................................................................................................77
8.4.5 Monitoring menu...............................................................................................................78
8.4.6 Parameter menu...............................................................................................................79
8.4.7 System/Fault menu...........................................................................................................80
8.4.8 Fault tracing......................................................................................................................82
8.5 Option boards....................................................................................................................86
8.5.1 Option board installation ..................................................................................................87
8.6 Signal Loop Option Board .................................................................................................91
8.7 Mains switch......................................................................................................................94
8.7.1 Installation ........................................................................................................................96
8.8 Simple operator panel ......................................................................................................99
8.8.1 Installation ......................................................................................................................100
9. Safe Torque Off ............................................................................................. 104
9.1 General description.........................................................................................................104
9.2 Warnings .........................................................................................................................104
9.3 Standards ........................................................................................................................105
9.4 The principle of STO........................................................................................................106
9.4.1 Technical details .............................................................................................................107
9.5 Connections.....................................................................................................................108
9.5.1 Safety Capability Cat.4 / PL e / SIL 3 ..............................................................................109
9.5.2 Safety Capability Cat. 3 / PL e / SIL 3 .............................................................................111
9.5.3 Safety Capability Cat. 2 / PL d / SIL 2 .............................................................................111
9.5.4 Safety Capability Cat.1 / PL c / SIL 1...............................................................................112
9.6 Commissioning ...............................................................................................................113
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Page 5
vacon • 5
9.6.1 General wiring instructions ............................................................................................113
9.6.2 Checklist for commissioning ..........................................................................................113
9.7 Parameters and fault tracing .........................................................................................114
9.8 Maintenance and diagnostics .........................................................................................114
10. Solar pump application .................................................................................115
10.1 Danger.............................................................................................................................115
10.2 Warning ...........................................................................................................................115
10.3 DC Fuse selection ...........................................................................................................115
10.4 Manufacturers of gPV fuses ...........................................................................................116
10.5 Parallel diode selection ..................................................................................................116
10.6 Photovoltaic system dimensioning.................................................................................117
10.7 Grounding........................................................................................................................118
10.7.1Pole Grounding ...............................................................................................................118
10.7.2Drive Grounding ..............................................................................................................118
10.8 AC grid connection ..........................................................................................................118
10.8.1More than one source of supply .....................................................................................118
10.8.2Toggle between AC and DC.............................................................................................118
10.9 External +24V supply.......................................................................................................118
10.10 DC power connection ......................................................................................................119
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Page 6
vacon • 6 Safety
1. SAFETY
This manual contains clearly marked warning information which is intended for your personal safety and to avoid any unintentional damage to the product or connected appliances.
Please read the warning information carefully.
VACON
tors. The product is intended to be installed in a restricted access location and for a general purpose use.
Only VACON
maintain the drive.
1.1 Signs
The cautions and warnings are marked as follows:
Table 1. Warning signs.
®
20 X is a drive designed to control asynchronous AC motors and permanent magnet mo-
®
authorized, trained and qualified personnel are allowed to install, operate and
= DANGEROUS VOLTAGE!
= HOT SURFACE!
= WARNING or CAUTION
1.2 Units
The dimensions used in this manual conform to International Metric System units, otherwise known
as SI (Système International d’Unités) units. For the purpose of the equipment's UL certification,
some of these dimensions are accompanied by their imperial equivalents.
Table 2. Unit conversion table.
Physical
dimension
length 1 mm 0.0394 inch 25.4 inch
Weight 1 kg 2.205 lb 0.4536 pound
Speed
Temperature 1 °C (T1) 33.8 °F (T2) T2 = T1 x 9/5 + 32 Fahrenheit
Torque 1 Nm 8.851 lbf in 0.113
Power 1 kW 1.341 HP 0.7457 horsepower
SI value US value Conversion factor US designation
1 min
-1
1 rpm 1
revolution per
minute
pound-force
inches
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Page 7
Safety vacon • 7
1.3 Danger
The components of the power unit of VACON® 20 X drives are live when the drive
is connected to the mains potential. Coming into contact with this voltage is
extremely dangerous and may cause death or severe injury.
®
The motor terminals (U, V, W) are live when VACON
the mains, even if the motor is not running.
After disconnecting the AC drive from the mains, wait until the indicators on the
keypad go out (if no keypad is attached, see the indicators on the cover). Wait an
additional 30 seconds before starting any work on the connections of VACON
X Drive. After expiration of this time, use measuring equipment to absolutely
ensure that no
voltage is present.
Always ensure absence of voltage before start-
ing any electrical work!
The control I/O-terminals are isolated from the mains potential. However, the
relay outputs and other I/O-terminals may have a dangerous control voltage
present even when VACON
®
20 X Drive is disconnected from the mains.
During a coast stop (see the Application Manual), the motor is still generating
voltage to the drive. Therefore, do not touch the components of the AC drive
before the motor has completely stopped. Wait until the indicators on the keypad
go out (if no keypad is attached, see the indicators on the cover). Wait an additional 30 seconds before starting any work on the drive.
20 X Drive is connected to
®
20
Use cable clamps supplied by the manufacturer for mains, motor, I/O, relay and
sensor cables. See Chapter 4.8.
Use cable ties as close as possible to relay and sensor terminals to keep the
wires together.
1.4 Warnings
VACON® 20 X AC drive is meant for fixed installations only.
Only DVC A circuits (Decisive Voltage Class A, according to IEC 61800-5-1) are allowed
to be connected to the control unit. This advice aims to protect both the drive and the cli-
ent-application. The manufacturer is not responsible for direct or consequential damages
resulting from unsafe connections of external circuits to the drive. See paragraph 1.6 for
more details.
Do not perform any measurements when the AC drive is connected to the mains.
The touch current of VACON
EN61800-5-1, a reinforced protective ground connection must be ensured. See paragraph 1.5.
®
20 X drives exceeds 3.5mA AC. According to standard
If the AC drive is used as a part of a machine, the machine manufacturer is responsible
for providing the machine with a supply disconnecting device (EN 60204-1). See paragraph 4.1
Only spare parts supplied by the manufacturer can be used.
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Page 8
vacon • 8 Safety
At power-up, power brake or fault reset, the motor will start immediately if the start signal is active, unless the pulse control for
Start/Stop logic has been selected
.
Furthermore, the I/O functionalities (including start inputs) may change if parameters,
applications or software are changed. Disconnect, therefore, the motor if an unexpected
start can cause danger. This is valid only if STO inputs are energized. For prevention on
unexpected restart, use appropriate safety relay connected to the STO inputs.
The motor starts automatically after automatic fault reset if the autoreset function is
activated. See the Application Manual for more detailed information.
This is valid only if STO inputs are energized. For prevention on unexpected restart, use
appropriate safety relay connected to the STO inputs.
Before performing any measurement on the motor or the motor cable, disconnect the
motor cable from the AC drive.
Do not perform any voltage withstand test on any part of VACON
®
20 X. The tests shall be
performed according to a specific procedure. Ignoring this procedure may damage the
product.
Do not touch the components on the circuit boards. Static voltage discharge may damage
the components.
Check that the EMC level of the AC drive corresponds to the requirements of your supply
network.
In a domestic environment, this product may cause radio interference, in which case supplementary mitigation measures may be required.
Optional keypad is IP66/Type 4X outdoor rated. Strong exposure to direct sunlight or to
heavy temperatures might cause the degradation of display LCD.
Do not use the internal Brake Resistor in installation above 2000 m altitude.
Do not remove the EMC screws in the solar pump application. IT (impedance-grounded)
AC supply network is not allowed in the solar pump application.
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Page 9
Safety vacon • 9
1.5 Grounding and earth fault protection
CAUTION!
The VACON® 20 X AC drive must always be grounded with a grounding conductor connected to the
grounding terminal marked with .
Since the touch current exceeds 3.5 mA AC (for the three-phase version), according to EN61800-51, the drive must have a fixed connection and provision of an additional terminal for a second protective grounding conductor of the same cross-sectional area as the original protective grounding
conductor.
Three screws (for the three-phase version) are provided for: the ORIGINAL protective grounding
conductor, the SECOND protective conductor and the MOTOR protective conductor (the customer
can choose the screw for each one). See Figure 1 for the location of the three screws in the two possible options available.
Figure 1. Protective grounding connections MU2 and MU3, three-phase version.
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Page 10
vacon • 10 Safety
Figure 2. Protective grounding connections MU2, single-phase version.
In VACON® 20 X, the phase conductor and the corresponding protective grounding conductor can
be of the same cross-sectional area, provided they are made of the same metal (because the cross-
2
sectional area of the phase conductor is less than 16 mm
).
The cross-sectional area of every protective grounding conductor which does not form a part of the
supply cable or cable enclosure must not, in any case, be less than:
•2.5 mm
•4 mm
2
if mechanical protection is provided or
2
if mechanical protection is not provided. For cord-connected equipment, provisions
shall be made so that the protective groundingconductor in the cord must, in the case of
failure of the strain-relief mechanism, be the last conductor to be interrupted.
However, always follow the local regulations for the minimum size of the protective grounding
conductor.
NOTE: Due to the high capacitive currents present in the AC drive, fault current protective switches
may not function properly.
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Page 11
Safety vacon • 11
POWER UNIT
L1
L2
L3
U
V
W
R01 __
R02 __
10Vref __
Analog Inputs __
Digital Inputs__
AnalogOutput__
24V __
RS485 __
STO __
Keypad
CONTROL UNIT
Reinforced
Mains
DVCA
DVCAorMains
(**)
DC‐
(*)
DC+/R+ R‐
1.6 Insulation system
Please, consider carefully the insulation system depicted in Figure 2, before connecting any circuit to the unit.
®
The control unit of VACON
dard IEC 61800-5-1 regarding DVC A circuits and also the strongest insulation
requirements of IEC 60950-1 regarding SELV circuits.
20 X fulfils the insulation requirements of the stan-
A distinction has to be made for the following three groups of terminals, according to the insulation
system of VACON
®
20 X:
• Mains and motor connections (L1, L2, L3, U, V, W) or (L, N, U, V, W)
(**)
• Relays (R01, R02)
• Control terminals (I/Os, RS485, STO)
The Control terminals (I/Os, RS485, STO) are isolated from the Mains (the insulation is reinforced,
according to IEC 61800-5-1) and the GND terminals are referred to PE.
This is important when you need to connect other circuits to the drive and test the complete assembly. Should you have any doubts or questions, please contact your local VACON
®
distributor.
Local contacts: https://www.danfoss.com/en/contact-us/contacts-list/
Figure 3. Insulation system (three-phase version).
Page 12
vacon • 12 Safety
POWER UNIT
L
N
U
V
W
R01 __
R02 __
10Vref __
Analog Inputs __
Digital Inputs__
AnalogOutput__
24V __
RS485 __
Keypad
CONTROL UNIT
Reinforced
Mains
DVCA
DVCAorMains
(**)
DC‐ DC+
1.7 Compatibility with RCDs
Figure 4. Insulation system (single-phase version).
(*)
Only for MU3.
(**)
The relays may be used also with DVC A circuits. This is possible only if both
relays are used for DVC A circuitry: to mix Mains and DVC A is not allowed.
By performing the cabling, a suitable clearance has to be guaranteed between
DVC A circuits and Mains (reinforced insulation is required, according to IEC
61800-5-1).
This product can cause a d.c. current in the protective grounding conductor.
Where a residual current-operated protective (RCD) or monitoring (RCM) device
is used for protection in case of direct or indirect contact, only an RCD or RCM of
Type B is allowed on the supply side of this product.
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Page 13
Safety vacon • 13
Ambient temperature (°C)
Percent rated output current (% I
N
)
10 20 30 40 50
100
75
50
25
0-10
150
60
Temperature - Output Current Derating Curve
1.8 Extended temperature range
VACON® 20 X has an integrated cooling system, independent from the motor fan. Under maximum
operating conditions, the ambient temperature cannot exceed 40 °C. See Table 28 for the output
rated current. Higher temperatures are allowed only with derating of the output current. With derating the unit can operate up to 50°C.
Figure 5.Temperature-output current derating curve.
The AC drive is cooled down by air-ventilation. Therefore, make sure that enough free space is left
around the AC drive to ensure sufficient air circulation (see for more details the mounting instructions on chapter 3).
NOTE: Up to 1.5 kW (Voltage range 380-480V) and 0.75 kW (Voltage range 208-240V) the drive is not
equipped with the main cooling fan.
NOTE! You can download the English and French product manuals with applicable safety,
warning and caution information from https://www.danfoss.com/en/service-and-support/.
REMARQUE Vous pouvez télécharger les versions anglaise et française des manuels produit
contenant l’ensemble des informations de sécurité, avertissements et mises en garde
applicables sur le site https://www.danfoss.com/en/service-and-support/.
Local contacts: https://www.danfoss.com/en/contact-us/contacts-list/
Page 14
vacon • 14 Receipt of delivery
44024094
M163800526
70SCO01444
Danfoss A /S, 6430 Nordbor g, Denmark
P2: 3 kW: 400 V / 4 hp: 480 V
IP66
U2: 3AC 0-Input V 0-320 Hz, I2: 7.6 A
U1: 3AC 380-480 V 50/60 Hz, I1: 9.6 A
Made in Italy
POWER:
OUTPUT:
INPUT:
VACON SPA
VACON0020-3L-0008-4-X+SEBK
160928
FW0117V011
Marks:
Cust. Ord. No:
Application:
Firmware:
B.ID:
S/N:
Code:
Type:
AC DRIVE
M16380052 6
70SC O01444
Vacon type code
Rated
current
Supply
voltage
Application
code
EMC level
IP class
Serial number
Customer’s
order number
Vacon order
number
Batch ID
2. RECEIPT OF DELIVERY
Check the correctness of delivery by comparing your order data to the drive information found on
the package label. If the delivery does not correspond to your order, contact your supplier immediately. See paragraph 2.4.
Figure 6. VACON® package label.
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Page 15
Receipt of delivery vacon • 15
VACON
This segment is common for all products.
0020
Product range:
0020 = Vacon 20
3L
Input/Function:
3L = Three-phase input
1L = Single-phase input
0009
Drive rating in ampere; e.g. 0009 = 9 A
See Table 27 and Table 29 for all the drive
ratings
4
Supply voltage:
2 = 208-240 V
4 = 380-480 V
X
- IP66/Type 4X enclosure
R02
+EMC4
+LS60
+LSUS
+QGLC
+xxxx +yyyy
Additional codes.
Examples of additional codes:
+HMTX
Text keypad IP66
+QDSS
Integrated disconnect switch
+QDSH
Simple operator panel
+A1163
Solar pump application
2.1 Type designation code
VACON® type designation code is formed of a nine-segment code and optional +codes. Each segment of the type designation code uniquely corresponds to the product and options you have ordered. The format of the code is as follows:
VACON0020-3L-0009-4-X +xxxx +yyyy
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Page 16
vacon • 16 Receipt of delivery
2.2 Order codes
The order codes for VACON® 20 X drive family are shown in the following table:
Table 3. Order codes of VACON® 20 X.
Enclosure size Order code Description
Supply voltage 3AC 208-240V
VACON0020-3L-0004-2-X 0.75 kW - 1.0 HP drive
MU2
MU3
VACON0020-3L-0005-2-X 1.1 kW - 1.5 HP drive
VACON0020-3L-0007-2-X 1.5 kW - 2.0 HP drive
VACON0020-3L-0011-2-X 2.2 kW - 3.0 HP drive
VACON0020-3L-0012-2-X 3.0 kW - 4.0 HP drive
VACON0020-3L-0017-2-X 4.0 kW - 5.0 HP drive
Supply voltage 1AC 208-240V
VACON0020-1L-0004-2-X 0.75 kW - 1.0 HP drive
MU2
VACON0020-1L-0005-2-X 1.1 kW - 1.5 HP drive
VACON0020-1L-0007-2-X 1.5 kW - 2.0 HP drive
Supply voltage 3AC 380-480V
VACON0020-3L-0003-4-X 0.75 kW - 1.0 HP drive
VACON0020-3L-0004-4-X 1.1 kW - 1.5 HP drive
MU2
VACON0020-3L-0005-4-X 1.5 kW - 2.0 HP drive
VACON0020-3L-0006-4-X 2.2 kW - 3.0 HP drive
VACON0020-3L-0008-4-X 3.0 kW - 4.0 HP drive
VACON0020-3L-0009-4-X 4.0 kW - 5.0 HP drive
MU3
VACON0020-3L-0012-4-X 5.5 kW - 7.5 HP drive
VACON0020-3L-0016-4-X 7.5 kW - 10.0 HP drive
For all technical details, see chapter 7.
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Page 17
Receipt of delivery vacon • 17
2.3 Unpacking and lifting the AC drive
The weights of the AC drives vary according to enclosure size. Note the weights of each individual
enclosure size in Table below.
Table 4. Enclosure weights.
Enclosure
size
[kg] [lb]
Weight
MU2 3.4 7.5
MU3 6.0 13.2
®
VACON
20 X drives have undergone scrupulous tests and quality checks at the factory before they
are delivered to the customer. However, after unpacking the product, check that no signs of transport damage are to be found on the product and that the delivery is complete.
Should the drive have been damaged during shipping, please contact the cargo insurance company
or the carrier in the first instance.
2.4 Accessories
After lifting the AC drive out, check that the delivery is complete and the following accessories are
included:
Table 5. Content of accessory bag.
Item Quantity Purpose
STO terminal connector 1
Six pin black connector (see
Figure 7) to use STO function
M3.5 x 8 TapTite screw 4 Screws for control cable clamps
M1-3 Cable clamp 2 Clamping control cables
‘Product modified’ sticker 1 Information about modifications
HMI cap
*. Provided only if the drive is delivered with the keypad mounted.
*
1
Closing cap for the HMI connector
Figure 7. STO connector.
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Page 18
vacon • 18 Receipt of delivery
Product modified
Date:
Date:
Date:
2.4.1 ‘Product modified’ sticker
In the small plastic bag included in the delivery, you will find a silver
Product modified sticker. The
purpose of the sticker is to notify the service staff about the modifications made in the AC drive. Attach the sticker on the side of the AC drive to avoid losing it. Should the AC drive be later modified,
mark the change on the sticker.
Figure 8. ‘Product modified’ sticker.
2.4.2 Disposal
When the device reaches the end of its operating life do not
dispose of it as a part of standard household garbage. Main
components of the product can be recycled, but some need to
be fragmented to separate different types of materials and
components that need to be treated as special waste from
electrical and electronic components. To ensure
environmentally sound and safe recycling treatment, the
product can be taken to appropriate recycling center or
returned to the manufacturer.
Observe local and other applicable laws as they may mandate
special treatment for specific components or special
treatment may be ecologically sensible.
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Page 19
Mounting vacon • 19
3. MOUNTING
The AC drive has to be mounted on the wall or on the back plane of a cubicle. Ensure that the
mounting plane is relatively even. Both enclosure sizes can be mounted in any position. Fix the drive
with four screws (or bolts, depending on the unit size).
3.1 Dimensions
3.1.1 Enclosure MU2 and MU3
Figure 9. VACON® 20 X, MU2.
Dimensions W x H x D
Enclosure size
[mm] [in]
MU2 169.2 x 294.7 x153.8 6.66 x 11.60 x 6.06
MU2 +HMTX 169.2 x 294.7 x175.7 6.66 x 11.60 x 6.92
MU2 +QDSS 169.2 x 294.7 x176 6.66 x 11.60 x 6.93
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Page 20
vacon • 20 Mounting
Figure 10. VACON® 20 X, MU3.
Dimensions W x H x D
Enclosure size
[mm] [in]
MU3 205.2 x 375.2 x 180.5 8.08 x 14.77 x 7.11
MU3 +HMTX 205.2 x 375.2 x 202.1 8.08 x 14.77 x 7.96
MU3 +QDSS 205.2 x 375.2 x 200.0 8.08 x 14.77 x 7.87
The drive can be mounted in vertical or horizontal position on the wall or any other relatively even
mounting plane or machine enclosure and fixed with the screws recommended in Table 6. Recommended screw or bolt size for MU2 and MU3 is M5.
Enclosure
size
Screw number Screw size
MU2 4 M5
MU3 4 M5
Table 6. Screws for wall mounting.
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Page 21
Mounting vacon • 21
AA A
B
C
3.2 Cooling
The AC drive produces heat in operation and is cooled down by air circulated by a fan. Enough free
space must be left around the AC drive to ensure sufficient air circulation and cooling. Different acts
of maintenance may also require certain amount of free space.
The minimum clearances given in Table 7 should be respected. It is also important to ensure that
the temperature of the cooling air does not exceed the maximum environment temperature of the
AC drive.
Contact our factory for more information on required clearances in different installations.
Min clearance [mm]
Type A B C
MU2 15 30 60
MU3 15 30 80
Table 7. Min. clearances around AC drive.
A = Clearance left and right from the drive
B = Clearance above the drive
C = Clearance underneath the AC drive
Figure 11. Installation space.
Table 8. Required cooling air.
Type Cooling air required [m3/h]
MU2 50
MU3 110
NOTE that if several units are mounted above each other the required free space equals B+C (see
the Figure 12.). Moreover, the outlet air used for cooling by lower unit must be directed away from
the air intake of the upper unit by means of e.g. a piece of metal plate fixed to the wall between the
drives as shown in Figure 12..
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Page 22
vacon • 22 Mounting
B+C
Air deflector
Figure 12. Installation space when drives are mounted on top of each other.
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Page 23
Power cabling vacon • 23
U/T1
V/T2
W/T3
M
L1
L2
L3
DC+/R+
R-
DC-
(*)
Keypad
Control
Power unit
U/T1
V/T2
W/T3
M
L
N
Keypad
Control
Power unit
4. POWER CABLING
The mains cables are connected to terminals L1, L2 and L3 (or L and N) and the motor cables to
terminals marked with U, V and W. See principal connection diagrams in Figure 13 and Figure 14.
See also Table for the cable recommendations for different EMC levels.
* Only for MU3.
Figure 13. Principal connection diagram (three-phase version).
Figure 14. Principal connection diagram (single-phase version)
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Page 24
vacon • 24 Power cabling
Shield
PE conductors
Shield
PE conductor
Use cables with heat resistance in accordance with the application requirements. The cables and
the fuses must be dimensioned according to the AC drive nominal OUTPUT current which you can
find on the rating plate.
Table 9: Cable types required to meet standards.
EMC levels
1st environment 2nd environment
Cable type
Category C1 and C2 Category C3 Category C4
Mains cable 1 1 1
Motor cable 3* 2 2
Control cable 4 4 4
1 = Power cable intended for fixed installation and the specific mains voltage. Shielded cable not
required. (MCMK or similar recommended).
2 = Symmetrical power cable equipped with concentric protection wire and intended for the spe-
cific mains voltage. (MCMK or similar recommended). See Figure 15.
3 = Symmetrical power cable equipped with compact low-impedance shield and intended for
the specific mains voltage. [MCCMK, EMCMK or similar recommended; Recommended
cable transfer impedance (1...30MHz) max. 100mohm/m]. See Figure 15.
*360º grounding of the shield with cable glands in motor end needed for EMC category C2.
4 = Screened cable equipped with compact low-impedance shield (JAMAK, SAB/ÖZCuY-O or
similar).
Figure 15.
NOTE: The EMC requirements are fulfilled at factory defaults of switching frequencies (all enclosures).
NOTE: If safety switch is connected, the EMC protection must be continuous over the whole cable
installation.
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Page 25
Power cabling vacon • 25
4.1 Circuit breaker
Disconnect the drive via an external circuit breaker. You have to provide a switching device between
the supply and main connection terminals.
When connecting the input terminals to the power supply using a circuit breaker, observe that this
is of type B or type C and ensure it has a capacity of 1.5 to 2 times of the inverter’s rated current
(see Table 27 and Table 29).
NOTE: circuit breaker is not allowed in installations where C-UL is required. Only fuses are recommended.
4.2 UL standards on cabling
To meet the UL (Underwriters Laboratories) regulations, use a UL-approved copper cable with a
minimum heat-resistance of +70/75°C. Use Class 1 wire only.
The units are suitable for use on a circuit capable of delivering no more than 50,000 rms symmetrical amperes, 500V AC maximum, when protected by T or J class fuses.
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.
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Page 26
vacon • 26 Power cabling
PES
3AC
Motor
AC power supply
Single or
Three phases
PE
4.3 Description of the terminals
The following pictures describe the power terminals and the typical connections in VACON® 20X
drives.
4.3.1 MU2 three-phase version power connections
Terminal Description
L1
L2
L3
U/T1
V/T2
W/T3
Figure 16. Power connections, MU2 three-phase version.
Table 10. Description of VACON
These terminals are the input connections for the power
supply. 230 VAC models can be supplied by single-phase
voltage by connecting to L1 and L2 terminals (with derating of 50%).
These terminals are for motor connections.
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®
20X MU2 power terminals.
Page 27
Power cabling vacon • 27
4.3.2 MU2 single-phase version power connections
AC power supply
Single-phase
3AC
Motor
PE
Figure 17. Power connections, MU2 single-phase version.
Table 11. Description of VACON
Terminal Description
L
N
These terminals are the input connections for the power
supply. Single-phase 230 VAC voltage has to be connected
to L and N terminals.
U
V
These terminals are for motor connections.
W
PES
11747_uk
®
20 X MU2 power terminals (single-phase version).
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Page 28
vacon • 28 Power cabling
PES
PE
AC power supply
Single or
Three phases
3AC
Motor
4.3.3 MU3 power connections
Figure 18. Power connections, MU3.
Table 12. Description of VACON
Terminal Description
L1
L2
L3
U/T1
V/T2
W/T3
These terminals are the input connections for the power
supply. 230 VAC models can be supplied by single-phase
voltage by connecting to L1 and L2 terminals (with derating of 50%).
These terminals are for motor connections.
®
20 X power terminals.
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Page 29
Power cabling vacon • 29
4.4 Cable dimensioning and selection
Table 13 shows the minimum dimensions of the Cu cables and the corresponding fuse sizes.
These instructions apply only to cases with one motor and one cable connection from the AC drive
to the motor. In any other case, ask the factory for more information.
4.4.1 Cable and fuse sizes, enclosures MU2 and MU3
The recommended fuse types are gG/gL (IEC 60269-1). The fuse voltage rating should be selected
according to the supply network. The final selection should be made according to local regulations,
cable installation conditions and cable specifications. Bigger fuses than those recommended below
must not be used.
Check that the fuse operating time is less than 0.4 seconds. Operating time depends on used fuse
type and impedance of the supply circuit. Consult the factory about faster fuses. The manufacturer
also recommends for high speed gS (IEC 60269-4) fuse ranges.
®
20 X.
Terminal cable size
Main
2
]
terminal
2
[mm
]
Earth
terminal
Enclosure
size
Table 13. Cable and fuse sizes for
Fuse
(gG/gL)
[A]
Type
I
INPUT
[A]
VACON
Mains and
motor cable
Cu [mm
0004 2
0003 4 - 0004 4
MU2
0005 2 - 0007 2
0005 4 - 0006 4
0008 4 9.6 16
0004 2 8.3 20
MU2
1-phase
0005 2 11.2 20
0007 2 14.1 25
0011 2
0009 4
MU3
0012 2
0012 4
0017 2
0016 4
The cable dimensioning is based on the criteria of the International Standard IEC60364-5-52: Cables must be
PVC-isolated; use only cables with concentric copper shield; Max number of parallel cables is 9.
4.3
3.2 - 4.0
6.8 - 8.4
5.6 - 7.3
13.4
11.5
14.2
14.9
20.6
20.0
6
10
16
20
25
3*1.5+1.5
3*1.5+1.5
3*2.5+2.5
(Mains) 2*1.5+1.5
(Motor) 3*1.5+1.5
(Mains) 2*2.5+2.5
(Motor) 3*2.5+2.5
(Mains) 2*2.5+2.5
(Motor) 3*2.5+2.5
3*2.5+2.5
3*2.5+2.5
3*6+6
0.2 — 2.5
0.2 — 2.5
0.2 — 2.5
0.2 — 2.5
stranded
0.2 — 2.5
stranded
0.2 — 2.5
stranded
0.5 — 16.0
0.5 — 16.0
0.5 — 16.0
M4 ring
terminal
M4 ring
terminal
M4 ring
terminal
M4 ring
terminal
M4 ring
terminal
M4 ring
terminal
M5 ring
terminal
M5 ring
terminal
M5 ring
terminal
When using cables in parallel,
the max number of cables must be observed.
For important information on the requirements of the grounding conductor, see chapter Grounding and earth
fault protection of the standard.
For the correction factors for each temperature, see International Standard IEC60364-5-52.
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NOTE HOWEVER that the requirements of both the cross-sectional area and
Page 30
vacon • 30 Power cabling
4.4.2 Cable and fuse sizes, enclosures MU2 and MU3, North America
The recommended fuse types are class T (UL & CSA). The fuse voltage rating should be selected
according to the supply network. The final selection should be made according to local regulations,
cable installation conditions and cable specifications. Bigger fuses than those recommended below
shall not be used.
Check that the fuse operating time is less than 0.4 seconds. Operating time depends on used fuse
type and impedance of the supply circuit. Consult the factory about faster fuses. The manufacturer
also recommends for high speed J (UL & CSA) fuse ranges.
Enclosure
size
MU2
MU2
1-phase
MU3
Table 14. Cable and fuse sizes for
Fuse
(class T)
[A]
6
10
Type
0004 2
0003 4 - 0004 4
0005 2 - 0007 2
0005 4 - 0006 4
I
INPUT
[A]
4.3
3.2 - 4.0
6.8 - 8.4
5.6 - 7.3
0008 4 9.6 15
0004 2 8.3 20
0005 2 11.2 20
0007 2 14.1 25
0011 2
0009 4
0012 2
0012 4
0017 2
0016 4
13.4
11.5
14.2
14.9
20.6
20.0
15
20
25
VACON
motor cable
®
20 X, North America.
Mains and
Cu
AWG14 AWG24-AWG12 AWG17-AWG10
AWG14 AWG24-AWG12 AWG17-AWG10
AWG14 AWG24-AWG12 AWG17-AWG10
AWG14 AWG24-AWG12 AWG17-AWG10
AWG14 AWG24-AWG12 AWG17-AWG10
AWG14 AWG24-AWG12 AWG17-AWG10
AWG14 AWG20-AWG6 AWG17-AWG10
AWG12 AWG20-AWG6 AWG17-AWG10
AWG10 AWG20-AWG6 AWG17-AWG10
Terminal cable size
Main terminal
Earth
terminal
The cable dimensioning is based on the criteria of the Underwriters’ Laboratories UL508C:Cables must be
PVC-isolated; Max ambient temperature +40 °C (104 °F), max temperature of cable surface +70/+75 °C (158/
167 °F); Use only cables with concentric copper shield; Max number of parallel cables is 9.
When using cables in parallel,
the max number of cables must be observed.
For important information on the requirements of the grounding conductor, see standard Underwriters’ Laboratories UL508C.
For the correction factors for each temperature, see the instructions of standard Underwriters’ Laboratories
UL508C.
NOTE HOWEVER that the requirements of both the cross-sectional area and
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Page 31
Power cabling vacon • 31
4.4.3 Recommended fuse sizes for group installation
A group installation is a configuration in which one fuse is intended to provide protection for more
than one drive. In this case, the fuse acts as BCP (Branch Circuit Protection) device for multiple
drives. VACON
®
20 X is suitable for motor group installation on a circuit capable of delivering not
more than 50,000 rms symmetrical amperes, 500 V max, when protected by Class J or T fuses.
VACON
®
20 X is approved for group installation by UL provided the fuse in the main branch circuit
is a 60 A class T or J fuse (300V or 600V AC maximum according to the drive rating).
It is possible to choose any combination of AC drives, but you have to pay attention that the total cur-
rent does not open the fuses in normal operation.
Example:
Eight MU2 type 0003 4 with input current 3.2 A (3.2*8=25.6 A) and one MU3 type 0016 4 with input
current 20 A have total input current: 25.6+20=45.6 A.
4.5 Brake resistor cables
VACON® 20 X AC drives (three-phase version) are equipped with terminals for an optional external
brake resistor.
For MU2, brake resistor wires with faston 6.3 mm have to be used.
NOTE! To get acces to terminals, touch protection cover needs to be removed
For MU3, a PCB terminal block with push-in spring-cage connector is provided. Stranded wires
(max. 4 mm
2
) with ferrules should be used.
See Table 30 and Table 31 for the resistor ratings.
See Figure 29 and Figure 31 for connector location.
4.6 Control cables
For information on control cables see chapter Control unit cabling.
4.7 Cable installation
• Before starting, check that none of the components of the AC drive is live. Read the warnings
in chapter 1 carefully
• Place the motor cables sufficiently far from other cables
• Avoid placing the motor cables in long parallel lines with other cables.
• If the motor cables run in parallel with other cables note the minimum distances between
the motor cables and other cables given in table below.
Distance between cables, [m] Shielded cable, [m]
0.3 50
1.0 200
• The given distances also apply between the motor cables and signal cables of other systems.
•The maximum length for motor cables is 30 m
• The motor cables should cross other cables at an angle of 90 degrees.
• If cable insulation checks are needed, see chapter Cable and motor insulation checks.
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Page 32
vacon • 32 Power cabling
D1
B1
B1
C1
D2
C2
E
D1
B1
C1
A
A A
MAINS MOTOR
Earth conductor Earth conductor Earth conductor
MAINS
(1-phase)
11746A_uk
Start the cable installation according to the instructions below:
1
Strip the motor and mains cables as recommended below.
Figure 19. Stripping of cables.
Table 15. Cables stripping lengths [mm].
Enclosure
size
A B1 C1 D1 C2 D2 E
MU2 4.3 60 8 40 8 120
MU2
1-phase
4.3 40 7 30 7 25
MU3 5.3 40 8 50 10 50
Leave as short
as possible
(Cable clamps
are used for
Motor cable
shielding)
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Page 33
Power cabling vacon • 33
2
• Remove the plastic cover of the drive as shown in Figure 20.
Figure 20. MU2 example: open cover.
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Page 34
vacon • 34 Power cabling
IEC installations:
• The cable entries consists of several openings available for the cables with
3
4
ISO metric thread.
• Open only the inlet holes where you need to run the cables.
• Choose the correct cable glands (in compliance with CE rules) according
to drive and cable size as shown in the following pictures.
Figure 21.Cable entries, MU2.
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Page 35
Power cabling vacon • 35
5
Figure 22. Cable entries, MU3.
• Cable glands must be made of plastic materials. They are used for sealing
cables passing through cable entries to ensure the characteristics of the
enclosure.
Figure 23. Cable gland.
Plastic cable glands are recommended. If metal cable glands are needed, all insulation
system and protective grounding requirements have to be fulfilled in accordance with
the national electrical regulations and IEC 61800-5-1.
6
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• Screw the cable glands (in compliance with CE rules) on the cable entry
holes using the proper tightening torque as shown in Table 16.
Page 36
vacon • 36 Power cabling
Tightening torque and dimensions of cable glands:
Table 16. Tightening torque and dimension of cable glands.
Enclosure
UL installations:
7
8
9
10
Gland screw
size
MU2
MU3
• Flexible conduit (plastic or metallic) are used as raceway for wires and
cables in accordance with the National Electrical Code.
• To connect NPT conduits to the metric threads of cable entries, adapters
must be used. These adapters must first be connected to the cable entries
plate, using the proper tightening torque as shown in the Table 16, and
then to the pipes according to UL regulations.
• For MU2 three NPT-to-Metric adapters must be used: number two 1/2” M20 adapters and number one 3/4” - M25 adapter. See Table 17 for further
details.
• For MU3 three NPT-to-Metric adapters must be used: 3/4” - M25 adapters. See Table 17 for further details.
type
[metric]
M16 1.0 8.9
M20 2.0 17.7
M25 4.0 35.5
M16 1.0 8.9
M25 4.0 35.5
[Nm] lbs-in.
Tightening torque
11
Figure 24. NPT-to-metric threads adapter.
• Teflon tape has to be used to ensure that you get a water tight seal on pipe
joints.
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Page 37
Power cabling vacon • 37
• Start by cleaning the male threads at the end of the pipe with a clean rag.
• Place the end of the Teflon tape on the second thread in and hold it in
place with one hand.
• Wrap the tape in the same direction of the threads.
• Keep tension on the tape and wrap it several times working away from the
12
Tightening torque of NPT adapters to metric threads cable entries:
Table 17. Tightening torque of NPT adapters to metric threads cable entries.
end of the NPT pipe.
• When you have finished wrapping the Teflon smooth the loose end down
into the threads.
• Screw the NPT-to-metric adapter on the cable entry using the proper
tightening torque. See Table 17 for more details.
• Screw the NPT pipes on the adapters.
Enclosure
size
MU2
MU3 M25 3/4” 4.0 35.5
NPT adapter order information:
M20 -> ADEC M20-T12
M25 -> ADEC M25-T34
Cables installation:
13
Thread male
metric
M20 1/2” 2.0 17.7
M25 3/4” 4.0 35.5
The VACON® 20 X drive is IP66/Type 4X rated. To keep this rating, the use of a sealed
conduit is required: if the approved conduit is not used, all warranty claims against water will be void.
• Pass the cables (supply cable, motor cable, brake cable and I/O cables)
through the pipes and adapters (UL installations) or through the cable
glands (IEC installations) and cable entries.
• Detach the cable clamps and the grounding clamps.
14
Thread female
NPT
Tightening torque
[Nm] lbs-in.
Connect the stripped cables:
• Expose the shield of the motor cable in order to make a 360-degree connection with the cable clamp (reverse the shield over the plastic cover of
the cable and fix all together).
15
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• Connect the phase conductors of the supply and motor cables into their
respective terminals.
• Form the rest of the cable shield of both cables into “pigtails” and make a
grounding connection with the clamp. Make the pigtails just long enough
to reach and be fixed to the terminal - no longer.
Page 38
vacon • 38 Power cabling
Tightening torques of cable terminals:
Table 18. Tightening torques of terminals.
Enclosure
size
MU2
MU3
16
Tightening torque
Type
0003 4—0008 4
0004 2—0007 2
0009 4—0016 4
0011 2—0017 2
• Check the connection of the earth cable to the motor and the AC drive terminals marked with .
Power and motor
terminals
[Nm] lbs-in. [Nm] lbs-in. [Nm] lbs-in.
0.5—0.6 4.5—5.3 1.5 13.3 2.0 17.7
1.2—1.5 10.6—13.3 1.5 13.3 2.0 17.7
Tightening torque
EMC grounding
clamps
Tightening torque,
Grounding terminals
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Page 39
Power cabling vacon • 39
Input Line
Motor output
Relays
I/O terminals
STO terminals
Option board terminals
4.8 Wiring way
In the following picture an example of wire cabling is given:
Figure 25. Wiring example with three-phase versions.
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Page 40
vacon • 40 Control unit
5. CONTROL UNIT
5.1 Opening the drives
Figure 26. Open front cover of the drive: control unit MU2 (three-phase version).
Figure 27. Open front cover of the drive: control unit MU2 (single-phase version).
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Page 41
Control unit vacon • 41
Figure 28. Open front cover of the drive: control unit MU3.
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Page 42
vacon • 42 Control unit
5.2 Control units MU2 and MU3
The control unit of the AC drive consists of the control board and additional boards (option boards)
connected to the slot connectors of the control board. The locations of boards, terminals and
switches are presented in Figure 29, Figure 30 and Figure 31.
Table 19. Locations of components in control unit
Number Meaning
1 Control terminals A-20
2 STO terminals (only in three-phase version)
3 Relay terminals
4 Option board terminals
5 STO Jumpers (only in three-phase version)
6DIP switches
7 Status LEDs
8 HMI connector (RJ45 keypad connector)*
Brake resistor terminals. See chapter 4.5 Brake
9
resistor cables for more information.
10 Supply voltage connector for main cooling fan
11 Control terminals A-20 echo connector
12 HMI echo connector (keypad connector)
13 DC-bus terminals
*
The HMI connector is only to connect the keypad and not for Ethernet communi-
cation.
Figure 29. Locations of the components in control unit of MU2 (three-phase version).
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Page 43
Control unit vacon • 43
Figure 30. Locations of the components in control unit of MU2 (single-phase version).
Figure 31. Location of the components in the control unit of MU3.
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Page 44
vacon • 44 Control unit
When delivered from the factory, the control unit of the AC drive contains the standard controlling
interface - the control terminals of the control board and the relay board - unless otherwise specifically ordered. In the following pages you will find the arrangement of the control I/O and the relay
terminals, the general wiring diagram and the control signal descriptions.
The control board can be powered externally (+24VDC ±10%, 1000mA) by connecting the external
power source between terminal #6 and GND, see chapter 5.3.2 Standard I/O terminals. This voltage
is sufficient for parameter setting and for keeping the control unit active. Note however that the values of the measurements of the main circuit (e.g. DC-link voltage, unit temperature) are not available when the mains is not connected.
5.3 Control unit cabling
The principal terminal block placement is shown in Figure 32 below. The control board is equipped
with 18 fixed control I/O terminals and the relay board with 5. Additionally, the terminals for the Safe
Torque Off (STO) function (see chapter 9) can be seen in the picture below. All signal descriptions
are also given in Table 21.
Figure 32. Control terminals.
5.3.1 Control cable sizing
The I/O (control and relays) and STO cables must be screened multi core cables with the following
cable sizes:
•0.14 -1.5 mm
• 0.25 - 1.5 mm
• 0.25 - 1.5 mm
2
without ferrules
2
with ferrules (no plastic neck)
2
with ferrules (with plastic neck).
Find the tightening torques of the I/O (control and relays) and STO terminals in the Table 20 below.
Table 20. Control cable tightening torques.
Tightening torque
Terminal screw
Nm lb-in.
I/O terminals and STO terminals (screw M2)
0.22 min
0.25 max
1.94 min
2.21 max
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Page 45
Control unit vacon • 45
V
X1
Remote reference
4...20mA/0...10V
5.3.2 Standard I/O terminals
The terminals of the Standard I/O
and the Relays are described below. For more information on con-
nections, see chapter 7.3.1 Technical information on control connections.
The terminals shown on shadowed background are assigned for signals with optional functions se-
lectable with DIP switches. For more information, see chapter 5.3.7 Selection of terminal functions
with dip switches.
Table 21. Control I/O terminal signals and connection example.
Standard I/O terminals
Terminal Signal
A RS485_A Serial bus, negative
B RS485_B Serial bus, positive
1 +10 Vref Reference output
Reference potentiometer
1...10k
AI1+
2
GND I/O signal ground
3
24Vout 24V aux. voltage
6
DIN COM
7
DI1 Digital input 1
8
DI2 Digital input 2
9
10
13
14
15
16
18
20 DO1+ Digital output 1
DI3 Digital input 3
AI2+
4
GND I/O signal ground
5
DO1-
DI4 Digital input 4
DI5 Digital input 5
DI6 Digital input 6
AO1+
Analogue input,
voltage or current
Digital inputs common
Analogue input,
voltage or current
Digital output 1 common
Analogue signal
(+output)
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Page 46
vacon • 46 Control unit
From
standard I/O board
From term.
#7
From term.
#6
RUN
5.3.3 Relay terminals
Table 22. I/O terminal signals for relays and connection example.
Relays terminals
Terminal Signal
22
23
24
25
26
RO1/2
RO1/3
RO2/1
RO2/2
RO2/3
Relay output 1
Relay output 2
5.3.4 Safe Torque off (STO) terminals
For more information on the functionalities of the Safe Torque Off (STO), see chapter 9. Safe Torque
Off This function is available only in the three-phase version.
Table 23. I/O terminal signals for the STO functions.
Safe Torque Off terminals
Terminal Signal
S1
Isolated digital input 1 (interchangeable polarity);
G1
S2
+24V ±20% 10...15mA
Isolated digital input 2 (inter-
changeable polarity);
G2
+24V ±20% 10...15mA
F+
F-
Isolated feedback (CAUTION!
Polarity to be respected);
+24V ±20%
Isolated feedback (CAUTION!
Polarity to be respected);
GND
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Page 47
Control unit vacon • 47
5.3.5 Description of additional echo connectors
In this paragraph you will find the description of the additional echo connector for the I/O terminals.
Figure 33. The I/O remote echo connector mounted on the control board.
In Figure 33 the view of Molex® connector for the I/O terminals is shown. In the control unit the position of this connector is numbered with 11 as shown in Figure 29, Figure 30 and Figure 31. The
type of this connector is Pico-Clasp™ Wire-to Board PCB Header, Dual Row, RIght Angle. The code
by Molex
®
is: 501571-2007.
It mates with Pico-Clasp™ Wire-to Board Receptacle Housing (crimp housing), Dual Row, 20 Cir-
®
cuits. The code by Molex
is: 501189-2010. See Figure 34.
Figure 34. Receptacle housing for I/O remote echo connector.
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Page 48
vacon • 48 Control unit
To connect I/Os to the control unit through echo terminals this connector has to be used. In the fol-
®
lowing table, the correspondence between the pins of this connector and the VACON
20 X termi-
nals is shown.
Table 24. I/O remote connector description.
Pin number Signal Description
1 RS485_B Serial bus, positive
2 DI2 Digital input 2
3 RS485_A Serial bus, negative
4 DI3 Digital input 3
5 NC not connected
6AI2+
7 NC not connected
8GND
9+10Vref
10 DO1- common for digital output 1
11 AI1+
12 DI4 Digital input 4
13 GND
14 DI5 Digital input 5
15 24Vout
16 DI6 Digital input 6
17 DIN COM
18 AO1+ Analogue output 1
19 DI1 Digital input 1
20 DO1+ Digital output 1
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Page 49
Control unit vacon • 49
5.3.6 Led handling
As VACON
®
20 X is often without the keypad, on the plastic cover of the drive there are 4 status
LEDs. See the picture below.
Figure 35. LED position on the MU2 cover.
Led “PWR” (orange led) means the drive is supplied by mains.
Led “RUN” (green led) means the drive is running.
Led “FLT” (red led) means the drive is experiencing a fault.
Led “RDY” (orange led) means the drive is ready and no fault is present. When a Warning is active,
the led starts blinking.
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Page 50
vacon • 50 Control unit
5.3.7 Selection of terminal functions with dip switches
The VACON
®
20 X drive embodies four so-called switches that allow for two functional selections
each. The shadowed terminals in Table 21 can be functionally modified with the dip switches.
The switches have two positions: 0 and 1. See Figure 36 to locate the switches and make appropri-
ate selections for your requirements.
Figure 36. Dip switches on the control unit.
5.3.7.1
Switch SW1
The digital inputs (terminals 8-10 and 14-16) on the standard I/O board can be isolated from ground
by setting the dip switch SW1 to position ‘1’. See Figure 36. Locate the switch and set it in the desired
position. The switch in the position “0” means that the common of digital input have been connected
to the ground.The default position is “0”.
5.3.7.2 Switches SW2 and SW3
Analogue inputs can be used as either current inputs or voltage inputs. The signal type is selected
with two switches on the control board.
The switch SW2 is related to analogue input AI1. In position “1” the analogue input AI1 works in voltage mode. In position “0” the analogue input works in current mode. The default position for SW2
is “1”.
The voltage range is 0...10V and the current is 0/4.....20 mA.
The switch SW3 is related to analogue input AI2. In the position “1” the analogue input AI2 works in
voltage mode. In the position “0” the analogue input works in current mode. The default position for
SW3 is “0”.
The voltage range is 0...10V and the current is 0/4.....20 mA.
5.3.7.3 Switch SW4
The switch SW4 is related to the RS485 connection. It is used for bus termination. The bus termination must be set to the first and to the last device on the network. The switch SW4 in position “0”
means that termination resistance is connected and the termination of the bus has been set. If the
VACON
®
20 X is the last device on the net, this switch must be set to “0” position. The default posi-
tion for SW4 is “0”.
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Page 51
Control unit vacon • 51
5.4 Fieldbus connection
Modbus is a communication protocol developed by Modicon systems. In other words, it is a way of
sending information between electronic devices. The device requesting the information is called the
Modbus Master and the devices supplying information are Modbus Slaves. In a standard Modbus
network, there is one Master and up to 247 Slaves, each with a unique Slave Address from 1 to 247.
The Master can also write information to the Slaves. Modbus is typically used to transmit signals
from instrumentation and control devices back to a main controller or data gathering system.
The Modbus communication interface is built around messages. The format of these Modbus messages is independent of the type of physical interface used. The same protocol can be used regardless of the connection type. Thanks to this, Modbus allows for the easy upgrade of the hardware
structure of an industrial network, without the need for significant changes in the software. A device
can also communicate with several Modbus nodes at once, although they are connected with different interface types, without the need to use a different protocol for every connection.
Figure 37.Basic structure of Modbus frame.
On simple interfaces such as RS485, the Modbus messages are sent in plain form over the network.
In this case the network is dedicated to Modbus.
Each Modbus message has the same structure. Four basic elements are present in each message.
The sequence of these elements is the same for all messages, to make it easy to parse the content
of the Modbus message. A conversation is always started by a master in the Modbus network. A
Modbus master sends a message and—depending on the contents of the message— a slave takes
action and responds to it. There can be more masters in a Modbus network. The address in the message header is used to define which device should respond to a message. All other nodes on the
Modbus network ignore the message if the address field does not match their own address.
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Page 52
vacon • 52 Control unit
5.4.1 Modbus RTU protocol
Table 25.
Interface RS-485
Data transfer method RS-485 MS/TP, half-duplex
Transfer cable
Connector
STP (shielded twisted pair), type
Belden 9841 or similar
2.5 mm
2
Connections and
communications
Electrical isolation Functional
Modbus RTU
Baud rate
As described in “Modicon Modbus
Protocol Reference Guide”
300, 600, 1200, 2400, 4800, 9600,
19200, 38400 and 57600 baud
Addresses 1 to 247
®
VACON
20 X drive is equipped with Modbus support as standard. The AC drive can be connected
to fieldbus through RS485. The connection for RS485 is on the standard I/O (terminals A and B). See
Figure 38.
Figure 38. Position of the RS485 terminals on the I/O standard terminal connector(MU2 control
unit example).
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Page 53
Control unit vacon • 53
10
5
5.4.2 Preparation for use through RS485
Strip about 15 mm of the RS485 cable (see specification on Table 25) and cut off
the grey cable shield. Remember to do this for both bus cables (except for the
last device).
Leave no more than 10 mm of the cable outside the terminal block and strip the
cables at about 5 mm to fit in the terminals. See picture below.
1
2
3
Also strip the cable now at such a distance from the terminal that you can fix it to
the enclosure with the grounding clamp. Strip the cable at a maximum length of
15 mm. Do not strip the aluminium cable shield!
Then connect the cable to its appropriate terminals on VACON® 20 X AC drive
standard terminal block, terminals A and B (A = negative, B = positive).
Using the cable clamp included in the supply of the drive, ground the shield of
the RS485 cable to the enclosure of the AC drive.
If VACON® 20 X drive is the last device on the bus,
the bus termination must be set. Locate the switches
to the right of the control terminals (see Figure 36)
and turn the SW4 switch to position “0”. Biasing is
built in the termination resistor.
4
5
6
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NOTE: When planning the cable runs, remember to keep the distance between
the fieldbus cable and the motor cable at a minimum of 30 cm.
The bus termination must be set for the first and the last device of the fieldbus
line. We recommend that the first device terminated is the Master device.
Page 54
vacon • 54 Commissioning
6. COMMISSIONING
Before commissioning, note the following directions and warnings:
Internal components and circuit boards of VACON® 20 X drive (except for the galvanically isolated I/O terminals) are live when it is connected to the mains potential. Coming into contact with this voltage is extremely dangerous and may
cause death or severe injury.
The motor terminals U, V, W and the brake resistor terminals are live when
®
VACON
The control I/O-terminals are isolated from the mains potential. However, the
relay outputs may have a dangerous control voltage present even when
VACON
Do not make any connections to or from the AC drive when it is connected to the
mains.
20 X drive is connected to the mains, even if the motor is not running.
®
20 X drive is disconnected from the mains.
After disconnecting the AC drive from the mains, wait until the indicators on the
cover go out. Wait an additional 30 seconds before doing any work on the connec-
®
tions of VACON
20 X Drive. Do not open the unit before this time has expired.
After expiration of this time, use a measuring equipment to absolutely ensure
that no
voltage is present.
Always ensure absence of voltage before starting any
electrical work!
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Commissioning vacon • 55
6.1 Commissioning of the drive
Read carefully the safety instructions in Chapter 1 and above and follow them.
After the installation:
Check that both the AC drive and the motor are grounded.
Check that the mains and motor cables comply with the requirements given in
chapter 4.1.1.
Check that the control cables are located as far as possible from the power cables,
see chapter 4.4.
Check that the shields of the shielded cables are connected to protective earth
marked with .
Check the tightening torques of all terminals.
Check that the wires do not touch the electrical components of the drive.
Check that the common inputs of digital input groups are connected to +24V or
ground of the I/O terminal.
Check the quality and quantity of cooling air.
Check the inside of the AC drive for condensation.
Check that all Start/Stop switches connected to the I/O terminals are in the Stopposition.
Before connecting the AC drive to mains: Check mounting and condition of all fuses and other protective devices.
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Page 56
vacon • 56 Commissioning
6.2 Changing EMC protection class
If your supply network is an IT (impedance-grounded) system but your AC drive is EMC-protected
according to class C1 or C2 you need to modify the EMC protection of the AC drive to EMC-level T
(C4). This is done as described below:
Warning! Do not perform any modifications on the AC drive when it is connected
to mains.
Do not remove the EMC screws in the solar pump application. IT (impedancegrounded) AC supply network is not allowed in the solar pump application.
6.2.1 Changing EMC protection class - MU2 three-phase version
1
Remove the three screws on the EMC plate from the unit.
Figure 39.Changing of the EMC class in MU2 control unit.
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Page 57
Commissioning vacon • 57
Remove the EMC plate from the control unit. Then lift the plate with pliers to dis-
2
connect the EMC plate from the ground. See Figure 40.
Then reconnect the EMC plate to the unit.
Figure 40. Changing of the EMC class in MU2 control unit.
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Page 58
vacon • 58 Commissioning
6.2.2 Changing EMC protection class - MU2 single-phase version
1
Remove the EMC screw as shown in the Figure 41.
Figure 41. Changing the EMC class in the MU2 (single-phase version).
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Page 59
Commissioning vacon • 59
Product modified
Date:
Date:
Date:
EMC-level modified C1->C4
DDMMYY
6.2.3 Changing EMC protection class - MU3
1
Remove the EMC screw as shown in the Figure 42.
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Figure 42. Changing the EMC class in the MU3 control unit.
CAUTION! Before connecting the AC drive to mains make sure that the EMC protection class settings of the drive are appropriately made.
NOTE! After having performed the change write ‘EMC level modified’ on the sticker
®
included in the VACON
20 X delivery (see below) and note the date. Unless al-
ready done, attach the sticker close to the name plate of the AC drive.
Page 60
vacon • 60 Commissioning
6.3 Running the motor
MOTOR RUN CHECK LIST
Before starting the motor, check that the motor is mounted properly and ensure
that the machine connected to the motor allows the motor to be started.
Set the maximum motor speed (frequency) according to the motor and the
machine connected to it.
Before reversing the motor make sure that this can be done safely.
Make sure that no power correction capacitors are connected to the motor cable.
Make sure that the motor terminals are not connected to mains potential.
6.3.1 Cable and motor insulation checks
1. Motor cable insulation checks
Disconnect the motor cable from terminals U, V and W of the AC drive and from the motor.
Measure the insulation resistance of the motor cable between each phase conductor as well as
between each phase conductor and the protective ground conductor. The insulation resistance
must be >1M at ambient temperature of 20°C.
2. Mains cable insulation checks
Disconnect the mains cable from terminals L1, L2 and L3 of the AC drive and from the mains.
Measure the insulation resistance of the mains cable between each phase conductor as well as
between each phase conductor and the protective ground conductor. The insulation resistance
must be >1Mat ambient temperature of 20°C
3. Motor insulation checks
Disconnect the motor cable from the motor and open the bridging connections in the motor
connection box. Measure the insulation resistance of each motor winding. The measurement
voltage must equal at least the motor nominal voltage but not exceed 1000 V. The insulation
resistance must be >1M at ambient temperature of 20°C.
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Commissioning vacon • 61
6.4 Maintenance
In normal conditions, the AC drive is maintenance-free. However, regular maintenance is recommended to ensure trouble-free operation and longevity of the drive. We recommend the table below
is followed for maintenance intervals.
Table 26.
Maintenance interval Maintenance action
Regularly and according to
general maintenance interval
• Check tightening torques of terminals.
• Check input and output terminals and
control I/O terminals.
6...24 months (depending on
environment)
• Check for corrosion on terminals and
other surfaces.
• Check the heatsink for dust and clean
if necessary.
6...10 years • Change the main fan.
• Charge capacitors, only after long
12...24 months
storage times or long down times
without supply: contact your nearest
Danfoss service center.
6.4.1 Recharging capacitors in stored units
When complete AC Drive units are stored without any voltage being applied to them, the recharging
of the capacitors should be done at least every 12 months, by connecting the power supply to the
unit and then keeping the unit powered up for a minimum of one hour.
If the storing time is much longer than one year, the recharging of the capacitors has to be done in
a way that possible high leakage current through the capacitors is limited. The best alternative is
to use a DC-power supply with an adjustable current limit. The current limit has to be set, for example, to 50...200mA and the DC-power supply has to be connected to the DC+/DC- terminals of the
DC link.
Power up instruction for MU02 (three-phase) unit without DC+/DC- terminals:
• The DC supply is connected between the two input phases L1 and L2.
• The DC voltage has to be adjusted up to the nominal DC voltage level of the unit (1.35xUn AC)
and has to be supplied for at least one hour.
If a DC voltage is not available and the unit has been stored much longer than one year de-energized, consult the manufacturer before connecting the power.
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Page 62
vacon • 62 Technical data
7. TECHNICAL DATA
7.1 AC drive power ratings
7.1.1 Mains voltage 3AC 208-240V
Table 27. Power ratings of VACON® 20 X, supply voltage 208-240V.
Mains Voltage 3AC 208-240V, 50/60 Hz
Motor shaft power
AC drive
type
Input
current
[A]
Rated continuous
current I
[A]
0004 4.3 3.7 5.6 7.4 0.75 1.0
0005 6.8 4.8 7.2 9.6 1.1 1.5
MU2
0007 8.4 7.0 10.5 14.0 1.5 2.0
0011 13.4 11.0 16.5 22.0 2.2 3.0
0012 14.2 12.5 18.8 25.0 3.0 4.0
MU3
0017 20.6 17.5 26.3 35.0 4.0 5.0
Loadability
50% overload
N
current
[A]
Max current
I
S
230V 240V
[kW] [HP]
NOTE: The rated currents in given ambient temperatures (in Table 27) are achieved only when the
switching frequency is equal to or less than the factory default.
7.1.2 Mains voltage 1AC 208-240V
Table 28. Power ratings of VACON® 20 X, supply voltage 1AC 208-240V.
Mains Voltage 1AC 208-240V, 50/60 Hz
Motor shaft power
Loadability
50% overload
N
current
[A]
Max current
I
S
230V 230V
[kW] [HP]
AC drive
type
Input
current
[A]
Rated continuous
current I
[A]
0004 8.3 3.7 5.6 7.4 0.75 1.0
0005 11.2 4.8 7.2 9.6 1.1 1.5
MU2
0007 14.1 7.0 10.5 14.0 1.5 2.0
NOTE: The rated currents in given ambient temperatures (in Table 28) are achieved only when the
switching frequency is equal to or less than the factory default.
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Page 63
Technical data vacon • 63
I
N
I
N*150%
1 min 9 min
I
N*150%
Current
Time
7.1.3 Mains voltage 3AC 380-480V
Table 29. Power ratings of
VACON
®
20 X, supply voltage 380-480V.
Mains Voltage 3AC 380-480V, 50/60 Hz
Motor shaft power
Loadability
50% overload
N
current
[A]
Max current
I
S
400V 480V
[kW] [HP]
AC drive
type
Input
current
[A]
Rated continuous
current I
[A]
0003 3.2 2.4 3.6 4.8 0.75 1.0
0004 4.0 3.3 5.0 6.6 1.1 1.5
0005 5.6 4.3 6.5 8.6 1.5 2.0
MU2
0006 7.3 5.6 8.4 11.2 2.2 3.0
0008 9.6 7.6 11.4 15.2 3.0 4.0
0009 11.5 9.0 13.5 18.0 4.0 5.0
0012 14.9 12.0 18.0 24.0 5.5 7.5
MU3
0016 20 16.0 24.0 32.0 7.5 10.0
NOTE: The rated currents in given ambient temperatures (in Table 29) are achieved only when the
switching frequency is equal to or less than the factory default.
7.1.4 Definitions of overloadability
Overloadability =Following continuous operation at rated output current IN, the AC drive supplies
150% * I
Example: If the duty cycle requires 150% rated current for 1 min in every 10 min, the remaining 9 min
must be at rated current I
for 1 min, followed by a period of at least 9 min at IN or below.
N
or less.
N
Figure 43. High overload.
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Page 64
vacon • 64 Technical data
7.2 Brake resistor ratings
Make sure that the resistance is higher than the minimum resistance defined. The power handling
capacity must be sufficient for the application. Brake chopper is available only in three-phase version.
®
Recommended minimum brake resistor values for VACON
Table 30. Brake resistor ratings, 208-240V.
Mains Voltage 3AC 208-240 V, 50/60 Hz
20 X AC drives:
Enclosure
size
Type
Minimum Resistance
recommended [Ohm]
0004 50
MU2
0005 50
0007 50
0011 25
MU3
0012 25
0017 25
Table 31. Brake resistor ratings, 380-480V.
Mains Voltage 3AC 380-480 V, 50/60 Hz
Enclosure
size
Type
Minimum Resistance
recommended [Ohm]
0003 100
0004 100
MU2
0005 100
MU3
0006 100
0008 100
0009 50
0012 50
0016 50
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Page 65
Technical data vacon • 65
7.3 VACON® 20 X - technical data
Table 32. VACON® 20 X technical data.
3AC 208…240V
Mains connection
DC connection
Input voltage U
in
Input voltage tolerance -15%…+10%
Input frequency 50/60 Hz
Input frequency toler-
ance
Protection class I
Connection to mains Once per minute or less
Starting delay 4 s
Supply network
Short-circuit current
Input Voltage UDC:
1AC 208...240V
3AC 380...480V
45…66 Hz
IT and TN-networks (cannot be used with corner earthed networks)
Maximum short-circuit current has to be
<50kA
234 … 400VDC
436 … 800VDC
DC supply only possible with MU2 singlephase enclosures and MU3
Motor connection
Output voltage
Rated output current
Overload output current
Starting current
3AC 0…U
in
IN: Ambient temperature max. +40°C.
See Table 27 and Table 29.
1.5 x IN (1 min/10 min)
IS for 2 s every 20 s (IS = 2.0 * IN)
Output frequency 0…320 Hz
Frequency resolution 0.01 Hz
Protection class I
Motor characteristics
AC squirrel cage motors
Permanent magnet motors
Cable type Screened motor cable
Cable maximum length 30 m
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Page 66
vacon • 66 Technical data
Table 32. VACON® 20 X technical data.
Programmable 2…16 kHz;
Switching frequency
Default 6 kHz.
Automatic switching frequency derating in
case of overheating
Frequency reference:
Control
characteristics
Analogue input
Panel reference
Resolution ±0.05% (11-bit), accuracy ±1%
Resolution 0.01 Hz
Field weakening point 8…320 Hz
Acceleration time 0.1…3000 sec
Deceleration time 0.1…3000 sec
Control
connections
Communication
interface
Ambient conditions
Braking
Brake chopper standard in all three-phase
enclosures. External brake resistor optional.
See Chapter 5.
Standard: Serial communication (RS485/
Modbus);
Fieldbus
Optional: CANopen; Profibus DP, Lonworks,
DeviceNet, Profinet IO, Ethernet IP, Modbus
TCP, EtherCAT, AS-interface
Status indicators
Ambient operating
Drive status indicators (LED) on top side
(POWER, RUN, FAULT, READY)
-10°C…+40°C
temperature
Extended temperature
range
up to 50°C with current derating (see chapter
1.8)
Storage temperature -40°C…+70°C
0 to 100% RH. Good resistance to most acids,
Relative humidity
alkalis and oils. Contact factory for more
details.
PD2 used for PCB design.
Pollution degree
However the drive is suitable for outdoor use
because of dust-tight enclosure to numeral 6
[acc. to IEC 60529]
Directives
100% load capacity (no derating) up to
Altitude
1,000m;
derating 1% / 100m at 1.000...3.000m
Degree of protection
Stationary vibration:
Sinusoidal
Shock/Bump:
IP66/Type 4X (IP65 when used with Simple
Operator Panel +QDSH)
3 Hz f8.43 Hz: 7.5mm
8.43 Hz f200 Hz: 2g
(3M6 acc. to IEC 60721-3-3)
25g/6ms
(3M6 acc. to IEC 60721-3-3)
EMC 2014/30/EU
Low Voltage 2014/35/EU
RoHS 2011/65/EU
WEEE 2012/19/EU
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Page 67
Technical data vacon • 67
Table 32. VACON® 20 X technical data.
Immunity
Standards
Emissions
Safety EN 61800-5-1
Production quality ISO 9001
Functional Safety TÜV - Tested
Electrical Safety TÜV - Tested
Approvals
EMC TÜV - Tested
USA, Canada cULus approval, file number E171278
Korea KC mark
Declaration of
Conformity
Australia
Europe EC Declaration of Conformity
EN61800-3: 2004 + A1: 2011, 1st and 2nd envi-
ronment
EN61800-3: 2004 + A1: 2011,
Category C2 as standard for
3-phase version
conducted and radiated
emissions
Category C1 as standard for
conducted emissions
1-phase version
Category C2 as standard for
radiated emissions.
The drive can be modified to category C4.
RCM Declaration of Conformity
Registration number E2204
Protections
Depends on supply voltage (0.8775*supply
voltage):
Undervoltage trip limit
Supply voltage 240 V: Trip limit 211 V
Supply voltage 400 V: Trip limit 351 V
Supply voltage 480 V: Trip limit 421 V
Earth fault protection Yes
Mains supervision Yes
Motor phase supervision Yes (not available in 1-phase version)
Overcurrent protection Yes
Unit overtemperature
protection
Motor overload protec-
tion
Yes
Yes. These devices provide motor overload
protection at 105% of full load amperes.
Motor stall protection Yes
Motor underload pro-
tection
Yes
Short-circuit protection
of +24V and +10V refer-
Yes
ence voltages
Thermal motor protection
DC-link absolute maximum voltage
Yes (by PTC with option card)
Supply voltage 240 Vac: max. 400 V
Supply voltage 400 Vac: max. 800 V
DC
DC
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Page 68
vacon • 68 Technical data
7.3.1 Technical information on control connections
Table 33. Technical information on standard I/O terminals.
Standard I/O
Terminal Signal Technical information
A RS485
B RS485
1 Reference output +10V, ±5%; Maximum current 10 mA
2
3
6
7
8
9
10
4
5
13
14
15
16
18
20
Analogue input,
voltage or current
I/O ground
24V aux. voltage
DIN COM
Digital input 1
Digital input 2
Digital input 3
Analogue input,
voltage or current
I/O ground
Digital output common
Digital input 4
Digital input 5
Digital input 6
Analogue signal
(+output)
Digital Output 1 Open Collector max 35V / 50mA (DO1+)
Differential receiver/transmitter
Set bus termination with dip switches (see Chapter 5)
Analogue input channel 1
0- +10V (Ri = 200 k
0/4-20 mA (Ri =250
Resolution 0.05%, accuracy ±1 %
Selection V/mA with dip-switches (see Chapter 5).
Default 0- +10V
Ground for reference and controls (connected internally to
enclosure earth through 2M
+24V, ±10%, max volt. ripple < 100mVrms; max. 100 mA
Short-circuit protected
Can be used with an external power supply (with a current
limiter or fuse protected) to supply the control unit and
fieldbus for backup purposes.
Dimensioning: max. 1000mA/control unit.
Common for digital inputs. Connected to GND with dipswitch SW1. See Chapter 5
Positive or negative logic
Ri = min. 4k
15…30V = "1"
0...5V = “0”
Analogue input channel 2
0- +10V (Ri = 200 k
0/4-20 mA (Ri =250
Resolution 0.05%, accuracy ±1 %
Selection V/mA with dip-switches (see Chapter 5).
Default 0/4-20 mA
Ground for reference and controls (connected internally to
enclosure earth through 2M
Common for digital output 1 (DO1-)
Positive or negative logic
Ri = min. 4k
15…30V = "1"
0...5V = “0”
Analogue output channel 1,
0-10V (30mA max)
Resolution 0.1%, accuracy ±2.5 %
Short-circuited protected.
)
)
)
)
)
)
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Technical data vacon • 69
Table 34. Technical information on Relays.
Relays
Terminal Signal Technical information
22
23
Relay output 1
*
24
25
Relay output 2*
26
*
If 230VAC is used as control voltage from the output relays, the control circuitry
Switching capacity 250VAC/3A
(only earthed network allowed)
Switching capacity NO 250VAC/5A
NC 250VAC/3A
(only earthed network allowed)
must be powered with a separate isolation transformer to limit short circuit current
and overvoltage spikes. This is to prevent welding on the relay contacts. Refer to
standard EN 60204-1, section 7.2.9
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vacon • 70 Options
8. OPTIONS
8.1 VACON® keypad with seven-segment display
The text keypad is an option available for VACON® 20 X. The control keypad is the interface between
the VACON
Main Switch only for AC voltage. Do not use for DC voltage.
®
20 X AC drive and the user.
Figure 44. Text keypad.
Table 35. Keypad order codes
Order code Description Type of option
VACON-PAN-HMTX-MC06-X
PAN-HMWM-MK02 Keypad Wallmounting Kit Loose Option
CAB-HMI2M-MC05-X MC05 HMI cable l=2m for -X keypads Option Loose Option
CAB-HMI5M-MC05-X MC05 HMI cable l=5m for -X keypads Option Loose Option
Handheld/Magnetic fixing IP66 text keypad w/
cable, l=1m/39.37 inches
Loose option
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Options vacon • 71
Figure 45. Display holder dimensions for wall-mounting
8.1.1 Mounting onto the drive
11863_00
Figure 46. Drive and the optional keypad kit.The optional keypad kit includes: keypad and cable.
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vacon • 72 Options
Figure 47. Disconnection of the HMI cap from the drive.
Figure 48. Mounting of the keypad.
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Options vacon • 73
Figure 49. Tighten the two screws (maximum tightening torque 0.5 Nm) of the keypad cable to
the enclosure of the drive. Keypad mounted onto the drive.
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vacon • 74 Options
Scroll menu up
Increase value
Scroll menu down
Decrease value
Move cursor left Move cursor right
Move backward in menu
Exit edit mode
Reset faults with long press
Change control place
Stop button Start button
Enter active level/item
Confirm selection
8.1.2 Text Keypad - buttons
With the keypad it is possible to control the speed of the motor, to supervise the state of the drive
and to set the AC drive’s parameters.
The button section of the text keypad is shown in the following picture.
Figure 50. Keypad buttons.
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Options vacon • 75
Indicators:
Status
Indicators:
Alarm, Fault
Indicators:
Menus
Indicators:
Direction
Indicators:
Control place
READY RUN STOP ALARM FAULT
FWD REV I/O KEYPAD BUS
REF
MON
PAR
SYS/FLT
.
Hz
8.2 Text keypad
The keypad display indicates the status of the motor and the drive and any irregularities in motor or
drive functions. On the display, the user can see the information about
menu structure and the item displayed.
his present
location in the
Figure 51. Keypad display.
8.3 Menu structure
The data on the control keypad are arranged in menus. Use the Up and Down arrows to move be-
return
tween the menus. Enter the group/item by pressing the OK button and
to the former level by
pressing the Back/Reset button. The arrows on the left of the display show the active menu. In
Figure 51 the REF menu is active. The table below shows the structure of the main menu:
Table 36. Keypad menus.
Reference (REF) Reference from Keypad
Monitor (MON) Monitoring values
Parameters (PAR) Application parameters
System Menu
System/Fault
(SYS/FLT)
Active fault
History fault
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vacon • 76 Options
FWD R EV I/O KEYPAD BUS
REF
MON
PA R
FA ULTALARMSTOPREADY RU N
FWD REV I/O KEYPAD BUS
REF
PA R
FA U LTALARMSTOPREADY RUN
MON
FW D REV I/O KEYPAD BUS
REF
PAR
FAU L TALARMSTO PREADY RUN
MON
FWD REV I/O KEYPAD BUS
EF
PAR
FAULTALARMSTOPRE ADY RUN
MON
FWD R EV I/O KEYP AD BUS
REF
PAR
FAULTALARMSTOPREADY RUN
MON
FWD REV I/O KEYPAD BUS
REF
PAR
FAULTALAR MSTOPREADY RUN
MON
FWD REV I/O KEYPAD BUS
REF
PAR
FAU LTALARMST O PREADY RUN
MON
PRESS
PRESS
PRESS
PRESS
PRESS
FWD REV I/O KEYPAD BUS
REF
MON
PA R
FAULTAL ARMSTOPREAD Y R U N
PRESS
PRESS
OK
OK
OK
OK
OK
In th is me nu
you can
browse the
monitoring
values.
In th is me nu
you can
browse and
edit the
parameters.
Dispalys the
keypad reference
value
regardless of
the selected
contron place.
r
Here you will be
able to browse
system paramete
and fault
submenu.
Hz
Hz
FLTSYS /
FLTSYS /
FLTSYS /
FLTSYS /
FLTSYS /
FLTSYS /
FLTSYS /
FLTSYS /
FLTSYS /
SYSTEM/FAULT
MENU
PA R A METE R
MENU
MONITOR
MENU
REFERENCE
MENU
8.4 Using the keypad
This chapter provides you with information on navigating the menus on VACON® 20 X and
editing the values of the parameters.
8.4.1 Main menu
The menu structure of VACON
submenus. Navigation in the main menu is shown below:
®
20 X control software consists of a main menu and several
Figure 52. The Main menu of VACON® 20 X.
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Options vacon • 77
Press to enter
edit mode
Change
value
OK
FWD REV I/O KEYPAD BUS
REF
MON
PA R
FAULTALARMSTOPREADY R UN
Hz
FLTSYS /
8.4.2 Resetting fault
When a fault appears and the drive stops, examine the cause of the fault, perform the action advised
in the Fault Tracing paragraph and reset the fault by pressing the RESET button.
8.4.3 Local/Remote control button
The LOC/REM button is used for two functions: to quickly access the Control page and to easily
change between the Local (Keypad) and Remote control places.
Control places
The
control place is the source of control where the drive can be started and stopped. Every control
place has its own parameter for selecting the frequency reference source. In the VACON
drive, the
Local control place is always the keypad. The Remote control place is determined by pa-
®
20 X
rameter (I/O or Fieldbus). The selected control place can be seen on the status bar of the keypad.
Remote control place
I/O and Fieldbus can be used as remote control places.
Local control
Keypad is always used as control place while in local control. Local control has higher priority than
remote control. Switching between Local and Remote Control can be done by pressing the LOC/
REM-button on the keypad.
8.4.4 Reference menu
Figure 53. Reference menu.
The reference value can be changed with UP / DOWN button as shown in Figure 53.
If the value has big change, first press Left and Right buttons to select the digit which has to be
changed, then press Up button to increase and Down button to decreases the value in the selected
digit. The changing reference frequency will been taken into use immediately without pressing OK.
NOTE! LEFT and RIGHT buttons can be used to change the direction in Ref menu in local control
mode.
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vacon • 78 Options
OK
OK
OK
1
2
3
5
4
FAU LTALARMSTOPREAD Y R U N
REF
MON
PA R
REF
MON
PA R
FAULTALARMSTOPREADY RU N
FWD REV I/O K EYPAD BUS FWD R EV I/O K EYPAD BUS
REF
MON
PA R
FAU LTALARMSTOPREADY RU N
FWD REV I/O K EYPAD BUS
REF
MON
PA R
FAU LTALARMSTOPREADY RU N
FWD REV I/O K EYPAD BUS
FAULTALARMSTOPREADY RU N
REF
MON
PA R
FWD R EV I/O K EYPAD BUS
FLTSYS/
FLTSYS /
FLTSYS /
FLTSYS /
FLTSYS /
Press OK to enter
Monitoring menu
Press Left/Right to browse
other Monitoring groups
Press Down to
browse V4.5
Press OK to select
V4.5
Press OK to display
the value
8.4.5 Monitoring menu
Monitoring values are actual values of measured signals as well as status of some control settings.
It is visible in VACON
®
20 X display, but it can not be edited. The monitoring values are listed in the
Application Manual.
Pressing Left/Right button to change the actual parameter to the first parameter of the next group,
to browse monitor menu from V1.x to V2.1 to V3.1 to V4.1. After entering the desired group, the monitoring values can be browsed by pressing UP/DOWN button, as shown in Figure 54. In MON menu
the selected signal and its value are alternating in the display by pressing OK button.
NOTE! Turn on drive power, arrowhead of main menu is at MON, V x.x or monitor parameter value
of Vx.x is displayed in Panel. Display Vx.x or monitor parameter value of Vx.x is determined by the
last show status before power shut down.
Figure 54. Monitoring menu.
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Options vacon • 79
OK
OK
2
Press Right to browse
other Par. group
4
Press OK button to enter
edit mode
3
Press down button to
browse P 3.4
5
Press Up / Down to change value
OK
6
Press OK to confirm
FA U LTALARMSTOPREADY RU N FA ULTALARMSTOPRE ADY RU N
FA U LTALARMSTOPREA DY RU N
FWD REV I/O K EYPAD BUS FWD R EV I/O K EYPAD BUS
FWD R EV I/O K EYPAD B US
1
Press OK to enter Pa r. menu
FAU LTALARMSTOPREADY RU N
FWD R EV I/O K EYPAD BUS
FA U LTALARMSTOPREADY RU N
FWD R EV I/O K EYPAD BUS
Hz
SYS / FLT
PAR
REF
MON
SYS / FLT
PAR
REF
MON
SYS / FLT
PAR
REF
MON
SYS / FLT
PAR
REF
MON
SYS / FLT
PAR
REF
MON
8.4.6 Parameter menu
In Parameter menu only the Quick setup parameter list is shown as default. To view the other advanced parameter groups, see the Application Manual. The following figure shows the parameter
menu view:
Figure 55.Parameter menu
Change the value of a parameter following the procedure below:
1. Locate the parameter.
2. Enter the Edit mode by pressing OK.
3. Set new value with the arrow buttons up/down. You can also move from digit to digit with the
arrow buttons left/right if the value is numerical and change then the value with the arrow buttons up/down.
4. Confirm change with OK button or ignore change by returning to previous level with Back/
Reset button.
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vacon • 80 Options
OK
Press OK to enter V1.1
1
Press Left/Right bu tton
to browse other groups
2
Pressdowntobrowse
other active faults
3
FAU LTALARMSTOP
FWD R EV I/O KEYPAD BUS
READY RU N
OK
Press OK to select one fault
to browse its time
4
FAU LTALARMSTOPREADY RU N
FWD REV I/O KEYPAD BUS
Browse for fault code(C xx),
subcode(Id xx), days(d xx),
hours(H xx), minutes(M xx)
5
FAULTALA RMSTOPREADY RU N
FWD R EV I/O KEYPAD BUS
FAULTALA RMSTOPREADY RU N
FWD R EV I/O KEYPAD BUS
FAU LTALARMSTOPREADY RUN
FWD R EV I/O KEYPAD BUS
SYS / FLT
PA R
REF
MON
SYS / FLT
PA R
REF
MON
SYS / FLT
PA R
REF
MON
SYS / FLT
PA R
REF
MON
SYS / FLT
PA R
REF
MON
8.4.7 System/Fault menu
SYS/FLT menu including fault submenu, field bus submenu and system parameter submenu. In
system parameter submenu, there are some editable parameter (P) and some not editable parameters (V). The Fault submenu of SYS/FLT menu includes active fault submenu and fault history submenu.
Figure 56. System and Fault menu.
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Options vacon • 81
8.4.7.1 Faults
Under this menu, you can find Active faults, Reset faults, Fault history, Counters and Software in-
fo.
In active fault situation, FAULT arrow is blinking and the display is blinking active fault menu item
with fault code. If there are several active faults, you can check it by entering the active fault submenu F5.x. F5.1 is always the latest active fault code. The active faults can be reset by pressing
BACK / RESET button with long time (>2 s), when the API is in active fault submenu level (F5.x). If
the fault cannot be reset, the blinking continues. It is possible to select other display menus during
active fault, but in this case the display returns automatically to the fault menu if no button is
pressed in 10 seconds. The fault code, subcode and the operating day, hour and minute values at
the fault instant are shown in the value menu (operating hours = displayed reading).
Active faults
Menu Function Note
Active faults When a fault/faults appear(s), the
display with the name of the fault
starts to blink. Press OK to return
to the Diagnostics menu. The
Active faults submenu shows the
number of faults. Select the fault
and push OK to see the fault-time
data.
The fault remains active until it is
cleared with the RESET button or
with a reset signal from the I/O terminal or fieldbus or by choosing
set faults
(see below).
Re-
The memory of active faults can
store the maximum of 10 faults in
the order of appearance.
Fault history
Menu Function Note
Fault history 10 latest faults are stored in the
Fault history.
Entering the Fault history and clicking OK on the selected fault shows
the fault time data (details).
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vacon • 82 Options
8.4.8 Fault tracing
Table 37. Fault codes and descriptions.
Fault
code
1
2
3
8
Fault name Subcode Possible cause Remedy
AC drive has detected too high a
) in the motor cable:
H
Overcurrent
current (>4*I
• sudden heavy load increase
• short circuit in motor cables
• unsuitable motor
The DC-link voltage has exceeded
the limits defined.
• too short a deceleration
Overvoltage
time
• brake chopper is disabled
• high overvoltage spikes in
supply
• Start/Stop sequence too fast
Current measurement has
detected that the sum of motor
Earth fault
phase current is not zero.
• insulation failure in cables
or motor
84 MPI communication crc error
89 HMI receives buffer overflow
90 Modbus receives buffer overflow
System Fault 93 Power identification error
97 MPI off line error
98 MPI driver error
99 Option board driver error
100 Option board configuration error
Check loading.
Check motor.
Check cables and connections.
Make identification run.
Check ramp times.
Make deceleration time longer.
Use brake chopper or brake resistor
(available as options).
Activate overvoltage controller.
Check input voltage.
Check motor cables and motor.
Reset the fault and restart.
Should the fault re-occur, contact the
distributor near to you.
Check PC-drive cable.
Try to reduce ambient noise
Check Modbus specifications for
time-out.
Check cable length.
Reduce ambient noise.
Check baudrate.
Try to reduce ambient noise.
Reset the fault and restart.
Should the fault re-occur, contact the
distributor near to you.
Reset the fault and restart.
Should the fault re-occur, contact the
distributor near to you.
Reset the fault and restart.
Should the fault re-occur, contact the
distributor near to you.
Check contact in option board slot
Try to reduce ambient noise;
Reset the fault and restart.
Should the fault re-occur, contact the
distributor near to you.
Check contact in option board slot
Try to reduce ambient noise;
Should the fault re-occur, contact the
distributor near to you.
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Options vacon • 83
Table 37. Fault codes and descriptions.
Fault
code
8
Fault name Subcode Possible cause Remedy
Check Modbus specifications for
time-out.
101 Modbus buffer overflow
104 Option board channel full
105
Option board memory allocation
fail
106 Option board Object queue full
System Fault 107 Option board HMI queue full
108 Option board SPI queue full
111 Parameter copy error
113
Frequency detective timer overflow
114 PC control time out fault
115 DeviceProperty data format
120 Task stack overflow
Check cable length.
Reduce ambient noise.
Check baudrate.
Check contacts in option board slot.
Try to reduce ambient noise.
Should the fault re-occur, contact the
distributor near to you.
Check contacts in option board slot.
Try to reduce ambient noise.
Should the fault re-occur, contact the
distributor near to you.
Check contacts in option board slot.
Try to reduce ambient noise.
Should the fault re-occur, contact the
distributor near to you.
Check contacts in option board slot.
Try to reduce ambient noise.
Should the fault re-occur, contact the
distributor near to you.
Check contacts in option board slot.
Try to reduce ambient noise.
Should the fault re-occur, contact the
distributor near to you.
Check if parameter set is compatible
with drive.
Do not remove Keypad until copy is
finished.
Check keypad contacts.
Try to reduce ambient noise.
Should the fault re-occur, contact the
distributor near to you.
Do not close VACON
control is active.
Check PC-Drive cable.
Try to reduce ambient noise.
Reset the fault and restart.
Should the fault re-occur, contact the
distributor near to you.
Reset the fault and restart.
Should the fault re-occur, contact the
distributor near to you.
®
Live when PC
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vacon • 84 Options
Table 37. Fault codes and descriptions.
Fault
code
9
10
11
13
14
15
16
17
Fault name Subcode Possible cause Remedy
DC-link voltage is under the voltage limits defined.
Undervoltage
• most probable cause: too
low a supply voltage
• AC drive internal fault
• defect input fuse
• external charge switch not
closed
In case of temporary supply voltage
break reset the fault and restart the
AC drive. Check the supply voltage. If
it is adequate, an internal failure has
occurred.
Contact the distributor near to you.
NOTE! This fault is activated only
if the drive is in Run state.
Input phase Input line phase is missing.
Current measurement has
Output phase
detected that there is no current in
one motor phase.
Too low temperature measured in
AC drive
undertemperature
power unit’s heatsink or board.
Heatsink temperature is under -
10°C.
Too high temperature measured in
AC drive
overtemperature
power unit’s heatsink or board.
Heatsink temperature is over
100°C.
Motor stalled Motor is stalled.
Motor
overtemperature
Motor is overloaded.
Motor underload Motor is under loaded
Check supply voltage, fuses and
cable.
Check motor cables and motor.
Check the ambient temperature.
Check the correct amount and flow of
cooling air.
Check the heatsink for dust.
Check the ambient temperature.
Make sure that the switching frequency is not too high in relation to
ambient temperature and motor
load.
Check motor and load.
Insufficient motor power, check
motor stall protection parametrization.
Decrease motor load.
If no motor overload exists, check the
temperature model parameters.
Check load. Check underload protection parametrization.
19
Power overload Supervision for drive power Drive power is to high: decrease load.
Reset the fault and restart.
If the fault occurs again, please contact your closest Danfoss representative.
Reset the fault and restart.
Should the fault re-occur, contact the
distributor near to you.
Reset the fault and restart.
Should the fault re-occur, contact the
distributor near to you.
25
27
30
Watchdog
Back EMF
STO fault
Error in the microprocessor moni-
toring
Malfunction
Component fault
Protection of unit when starting
with rotating motor
Safe torque off signal does not
allow drive to be set as ready
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Options vacon • 85
Table 37. Fault codes and descriptions.
Fault
code
35
41
50
51
52
53
Fault name Subcode Possible cause Remedy
0
Application
error
1 Application software flash error Reload Application
2 Application header error
IGBT temp
4 mA fault
(Analog input)
External fault
Keypad Communication
fault
Fieldbus communication
fault
Firmware Interface version
between Application and Control
not matching
IGBT temperature (UnitTempera-
ture + I2T) too high
Selected signal range: 4...20 mA
(see Application Manual)
Current less than 4 mA
Signal line broken detached
The signal source is faulty
Error message on digital input.
The digital input was programmed
as an input for external error mes-
sages. The input is active.
The connection between the con-
trol keypad and the AC drive is bro-
ken.
The data connection between the
fieldbus master and fieldbus board
is broken
Load a compatible application.
Please contact your closest Danfoss
representative.
Load a compatible application.
Please contact your closest Danfoss
representative.
Check loading.
Check motor size.
Make identification run.
Check the analog input’s current
source and circuit.
Check the programming and check
the device indicated by the error
message.
Check the cabling for the respective
device as well.
Check keypad connection and keypad
cable.
Check installation and fieldbus master.
54
Fieldbus Interface error Defective option board or slot Check board and slot.
55
Wrong run command
Wrong run alarm and stop com-
mand
Run forward and backward are activated at the same time
Board OPTBH is installed and mea-
56
Temperature Temperature fault
sured temperature is above (or
below) the limit
57
Identification Identification alarm
Motor identification has not been
successfully completed
The drive has been stopped with
63
Quick Stop Quick Stop activated
Quick Stop digital input or Quick Stop
command by fieldbus
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vacon • 86 Options
8.5 Option boards
VACON® 20 X drive family embodies a wide selection of expander boards with which the available
®
I/O of VACON
There is one board slot (labelled D) on the VACON
20 X AC drive can be increased and its versatility improved.
®
20 X control board. To locate the slot, see Chapter 5. Usually, when the AC drive is delivered from the factory, the control unit does not include any
option board in the board slot.
The following option boards are supported:
Table 38. Option boards supported in VACON® 20 X
Order Code Description Note
With jumper blocks, it is possible to
use each terminal as digital input or
as digital output.
OPT-B1-V
Option board with six bidirec-
tional terminals.
I/O expander board with a
OPT-B2-V
thermistor input and two relay
outputs.
I/O expander board with one
galvanically isolated analogue
OPT-B4-V
galvanically isolated analogue
input and two
outputs (standard signals
0(4)…20mA).
OPT-B5-V
I/O expander board with three
relay outputs
I/O expander board with five
OPT-B9-V
42…240 VAC digital inputs and
one relay output.
OPT-BF-V
I/O expander board with ana-
logue output, digital output and
relay output.
On the OPTBF board, there is one
jumper block for selecting the ana-
logue output mode (mA/V).
OPT-BH-V
Temperature measurement
board with three individual
channels.
Supported sensors: PT100, PT1000,
NI1000, KTY84-130, KTY84-150,
KTY84-131
OPT-BK-V ASi option board AS-interface option card
OPT-C4-V Lonworks option board
Pluggable connector with screw ter-
minals
OPT-E2-V Modbus RTU and N2 screw terminals
OPT-E3-V Profibus DP option board
Pluggable connector with screw ter-
minals
OPT-E5-V Profibus DP option board 9-pin Sub-D terminal
OPT-E6-V CANopen option board
OPT-E7-V DeviceNet option board
OPT-E8-V Modbus RTU and N2 sub-D9 connector
OPT-E9-V Dualport Ethernet option board
OPT-EC-V EtherCat option board
See the Option boards User’s Manual to use and install the option boards.
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Options vacon • 87
8.5.1 Option board installation
NOTE! Do not add or replace option boards or fieldbus boards on an AC
drive with the power switched on. This may damage the boards.
1
• Remove the HMI cap and open the cover of the drive.
Figure 57. Opening the main cover, MU3 example.
The relay outputs and other I/O-terminals may have a dangerous control voltage
present even when the drive is disconnected from mains.
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vacon • 88 Options
2
• Remove the option slot cover.
Figure 58. Removing the option slot cover.
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Options vacon • 89
Slot coding
OPT
dv
9116.emf
• Make sure that the sticker on the connector of the board says “dv” (dual
®
voltage). This indicates that the board is compatible with VACON
20 X.
See below:
3
®
• NOTE: Incompatible boards cannot be installed on VACON
ible boards have a slot coding that enables the placing of the board (see
above)
20 X. Compat-
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vacon • 90 Options
4
• Install the option board into the slot as shown in the picture below.
Figure 59. Option board installation.
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Options vacon • 91
5
• Mount the option slot cover.
Figure 60. Mounting of option slot cover: remove the plastic opening for the option board ter-
minals.
8.6 Signal Loop Option Board
The signal loop option board enables easy looping/ daisy chain of 24V and STO signals (to another
VACON
terminals and typical connections. The location of the board and terminals are presented in
Figure 61.
NOTE! The Signal Loop Option Board is available only as a build-in option with plus code +TQGL. The
drive must be ordered from factory using this plus code.
When delivered from factory, the signal loop option board is already connected to the control IOs
and Safe Tourqe Off (STO) inputs of the drive. The wiring is made in such a way that the STO inputs
are connected in parallel and the STO feedback is not used. According to Table 45 the only safety
capability that the customer can reach by using the signal loop option board is Cat.1, PL c, SIL 1.
The signal loop option board can be used to power the control side externally (+24VDC ±10%,
1000mA), by connecting the external power source as described in Figure 62.
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®
20 X drive) and easy connection of 4 digital inputs. The Figure 62 describes the signal loop
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vacon • 92 Options
In the configuration of a signal loop option board and an ASi bus option board, the signal loop option
board is connected to the ASi bus. This enables an external power up the control side with the ASi
bus power. In that case, there is no need to supply the signal loop option board externally, becasue
the signal loop option board is converting the 30V from ASi bus to 24V, to supply the control side.
NOTE! It is not possible to use the Signal Loop Option Board (+TQGL) with the Mains Switch Option
(+QDSS) or Simple Operator Panel (+QDSH).
11861_00
Figure 61. Installation of Signal Loop Option Board
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Options vacon • 93
connection between ASi out and TQGL
already pre-cabled (if ordered with +OPT-BK)
ASi*
OPT-BK
aux. 24V
supply*
*OPTIONAL: 24V supply from
OBT-BK or ext. power supply
ext.
Safety
device
STO: see chapter “9. Safe
Torque Off”
Sensor
Sensor
Sensor
Sensor
X12 - 24V (Supply terminal)
Terminal
GND
24V 24V aux. Voltage*
GND
X12 - 24V
24V 24V aux. Voltage*
Signal
aux. voltage ground
aux. voltage ground
X11 - STO (STO terminal)
Terminal
STO-
STO+ S1/S2
STO-
X11 - STO
STO+ S1/S2
Signal
G1/G2
G1/G2
X21 - X24 Sensor terminals
Terminal
GND
Digin
(X21)
24V
Sensor1
GND I/O signal ground
Digin
(X22)
24V
Sensor2
GND I/O signal ground
Digin
(X23)
24V
Sensor3
GND I/O signal ground
Digin
(X24)
24V
Sensor4
Signal
I/O signal ground
Digital input 3
24V aux. Voltage,
output
Digital input 4
24V aux. Voltage,
output
Digital input 5
24V aux. Voltage,
output
Digital input 6
24V aux. Voltage,
output
Standard I/O terminals
Terminal
A RS485_A Serial bus, negative
B
RS485_B Serial bus, positive
1 +10 Vref Reference output
2
AI1+
3 GND I/O signal ground
24Vout 24V aux. voltage
6
7 DIN COM
8
DI1 Digital input 1
9 DI2 Digital input 2
10 DI3 Digital input 3
4
AI2+
5 GND I/O signal ground
13 DO1-
14 DI4 Digital input 4
15
DI5 Digital input 5
16
DI6 Digital input 6
18
AO1+
20
DO1+ Digital output 1
Signal
Analogue input,
voltage or current
Digital inputs
common
Analogue input,
voltage or current
Digital output 1
common
Analogue signal
(+output)
11862_uk
Figure 62. Control, Sensor and STO terminals of the Signal Loop Card (+TQGL option)
* The connection of the auxiliary 24V is optional. The purpose of it is to keep the low voltage part of
the V20CP supplied even when the mains are OFF; If the V20X is ordered with OPT-BK and TQGL the
wiring between the two Options is already factory-made, in this case the terminal block X12 is not
utilizable.
Terminal Signal Description Technical information
Cross
section
X12 24V aux. Voltage Auxiliary 24V Input See chapter: Chapter 5 2.5mm²
X11 STO: S1/S2 and G1/G2 STO inputs See chapter: Chapter 9 2.5mm²
X21-X24
24V aux. Voltage, output
Provides 24V for the
sensors
+24V, ±10%, max. 20mA,
Short-circuit protected;
1.5mm²
Digital Input 3-6 Sensor input See chapter: Chapter 7.3.1
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vacon • 94 Options
Table 39. Cable sizing
24V/STO connectors 1.5 - 2.5mm², stranded AWG 12-24
Signal connector 1.5mm², stranded (AWG 16-24) AWG 16-24
Power Consumption
control-card: approx. 100mA @24Vdc, without extras (no KeyPad, no DIN or DOUT used, no Optionboard)
max. 20mA per Sensor (depending on supply, 20mA in case of supply via Asi OPT-BK)
8.7 Mains switch
The purpose of the Mains switch is to disconnect the VACON® 20 X from the mains when, for example, service actions are needed. The mains switch is available as option and it can be integrated in
the drive. The switch can be mounted on the front side of the drive. See Figure 63.
NOTE! The Mains Switch Option is available as build-in option with plus code +QDSS, as well as
spare part kit (see Table 40).
Figure 63. The mains switch option spare kit (MU2 example).
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Options vacon • 95
Table 40. Mains switch kit content.
Enclosure
size
MU2
(3-phase
version)
MU2
(1-phase
version)
MU3
Description and type code Item Quantity
Main switch 40A NLT40 assembly 1
MU2 QDSS option spare kit
60S01128
MU2 cover for main switch 1
M4x14 screw 2
M5x23 screws 4
Main switch 40A NLT40 assembly 1
MU2 QDSS option spare kit
60S01234
MU2 cover for main switch 1
M4x14 screw 2
M5x23 screws 4
Main switch 40A NLT40 assembly 1
MU3 QDSS option spare kit
60S01129
MU3 cover for main switch 1
M4x14 screw 2
M5x23 screws 6
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vacon • 96 Options
8.7.1 Installation
1
• Remove the HMI cap and the cover from the drive. See the Figure 64.
2
3
4
5
6
Figure 64. Cover open (MU2 3-phase example).
• Open only the inlet holes where you need to run the cables. Cables pass
through this inlet hole.
• Connect the supply cable to the Mains switch passing through the cable gland
from the bottom side (use the cable gland for sealing the cable to the drive)
and then through the terminal box as shown in the figure below.
• Place the Mains switch with the cables inside the drive and fix it with its
screws.
• Connect the cables from the Mains switch to the line terminal. The cables have
to be connected to the terminals L1, L2 and L3.
NOTE:
• For single-phase version connect BLU cable to N and BROWN cable to L.
• Fix the cables with cable clamp.
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Options vacon • 97
Figure 65. Mains switch and cables connected (MU2 3-phase example).
7
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• Connect the GROUND wire to the proper terminal (see the yellow-green cable
on Figure 65.
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vacon • 98 Options
8
• Mount the plastic cover onto the drive with its screws and HMI cap: the installation process has been completed. See Figure 66.
Figure 66. Mount the plastic cover.
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Options vacon • 99
8.8 Simple operator panel
The purpose of the Simple operator panel is to provide a local control with Start/Stop selector and
®
potentiometer for frequency reference together with a mains switch to disconnect the VACON
20
X from the mains when, for example, service actions are needed. This option can be mounted on the
front side of the drive. See Figure 67.
Enclosure
size
MU2
(3-phase
version)
MU2
(1-phase
version)
Figure 67. The Simple operator panel option spare kit (MU2 example).
Table 41. Simple operator panel kit content.
Description and type code Item Quantity
Main switch 40A NLT40 and operator
panel assembly
MU2 QDSH option spare kit
MU2 cover for main switch 1
60S01208
M4x14 screw 2
M5x23 screws 4
Main switch 40A NLT40 and operator
panel assembly
MU2 QDSH option spare kit
MU2 cover for main switch 1
60S01235
M4x14 screw 2
M5x23 screws 4
1
1
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vacon • 100 Options
Table 41. Simple operator panel kit content.
Enclosure
size
MU3
8.8.1 Installation
Description and type code Item Quantity
MU3 QDSH option spare kit
• Remove the HMI cap and the cover from the drive. See the Figure 68.
1
60S01209
Main switch 40A NLT40 and operator
panel assembly
MU3 cover for main switch 1
M4x14 screw 2
M5x23 screws 6
1
2
Figure 68. Cover open (MU2 3-phase example).
• Open only the inlet holes where you need to run the cables. Cables pass
through this inlet hole.
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