AMETEK Programmable Power Division
751/1501i/iX
Series II
AC and DC Power Source
User Manual
Revision B
August 2013
Copyright 2006-2009
All rights reserved.
P/N 6005-967
TEL: +1 (858) 450-0085
FAX: +1 (858) 458-0267
Web Site: http://www.programmablepower.com
User Manual Compact i/iX Series
Refers to:
Models:
751i AC and DC Power Source
751iX AC and DC Power Source/Analyzer
1501i AC and DC Power Source
1501iX AC and DC Power Source/Analyzer
This manual covers Series II versions of the 751/1501i/iX
Note: For 2253i and 2253iX three phase power source models, refer to user manual P/N 6005-962.
AMETEK Programmable Power California Instruments 2
User Manual Compact i/iX Series
About AMETEK
AMETEK Programmable Power, Inc., a Division of AMETEK, Inc., is a global leader in the design
and manufacture of precision, programmable power supplies for R&D, test and measurement, process
control, power bus simulation and power conditioning applications across diverse industrial
segments. From bench top supplies to rack-mounted industrial power subsystems, AMETEK
Programmable Power is the proud manufacturer of Elgar, Sorensen, California Instruments and
Power Ten brand power supplies.
AMETEK, Inc. is a leading global manufacturer of electronic instruments and electromechanical
devices with annualized sales of $2.5 billion. The Company has over 11,000 colleagues working at
more than 80 manufacturing facilities and more than 80 sales and service centers in the United States
and around the world.
Trademarks
AMETEK is a registered trademark of AMETEK, Inc. California Instruments is a trademark owned by AMETEK,
Inc. Other trademarks, registered trademarks, and product names are the property of their respective owners
and are used herein for identification purposes only.
Notice of Copyright
Compact i/iX Series User Manual
© 2006-2010 AMETEK Programmable Power, Inc. All rights reserved.
Exclusion for Documentation
UNLESS SPECIFICALLY AGREED TO IN WRITING, AMETEK PROGRAMMABLE POWER, INC.
(“AMETEK”):
(a) MAKES NO WARRANTY AS TO THE ACCURACY, SUFFICIENCY OR SUITABILITY OF ANY TECHNICAL OR
OTHER INFORMATION PROVIDED IN ITS MANUALS OR OTHER DOCUMENTATION.
(b) ASSUMES NO RESPONSIBILITY OR LIABILITY FOR LOSSES, DAMAGES, COSTS OR EXPENSES, WHETHER
SPECIAL, DIRECT, INDIRECT, CONSEQUENTIAL OR INCIDENTAL, WHICH MIGHT ARISE OUT OF THE USE
OF SUCH INFORMATION. THE USE OF ANY SUCH INFORMATION WILL BE ENTIRELY AT THE USER’S
RISK, AND
(c) REMINDS YOU THAT IF THIS MANUAL IS IN ANY LANGUAGE OTHER THAN ENGLISH, ALTHOUGH STEPS
HAVE BEEN TAKEN TO MAINTAIN THE ACCURACY OF THE TRANSLATION, THE ACCURACY CANNOT BE
GUARANTEED. APPROVED AMETEK CONTENT IS CONTAINED WITH THE ENGLISH LANGUAGE VERSION,
WHICH IS POSTED AT WWW.PROGRAMMABLEPOWER.COM.
Date and Revision
August 2013, Revision B
Part Number
6005-967
Contact Information
Telephone: 800 733 5427 (toll free in North America)
858 450 0085 (direct)
Fax: 858 458 0267
Email: sales@programmablepower.com
service@programmablepower.com
Web: www.programmablepower.com
AMETEK Programmable Power California Instruments 3
User Manual Compact i/iX Series
WARNING
Hazardous voltages may be present when covers are removed. Qualified
personnel must use extreme caution when servicing this equipment.
Circuit boards, test points, and output voltages also may be floating above
(below) chassis ground.
WARNING
The equipment used contains ESD sensitive parts. When installing
equipment, follow ESD Safety Procedures. Electrostatic discharges might
cause damage to the equipment.
Important Safety Instructions
Before applying power to the system, verify that your product is configured properly for your
particular application.
Only qualified personnel who deal with attendant hazards in power supplies, are allowed to perform
installation and servicing.
Ensure that the AC power line ground is connected properly to the Power Rack input connector or
chassis. Similarly, other power ground lines including those to application and maintenance equipment
must be grounded properly for both personnel and equipment safety.
Always ensure that facility AC input power is de-energized prior to connecting or disconnecting any
cable.
In normal operation, the operator does not have access to hazardous voltages within the chassis.
However, depending on the user’s application configuration, HIGH VOLTAGES HAZARDOUS TO
HUMAN SAFETY may be normally generated on the output terminals. The customer/user must
ensure that the output power lines are labeled properly as to the safety hazards and that any inadvertent
contact with hazardous voltages is eliminated.
Guard against risks of electrical shock during open cover checks by not touching any portion of the
electrical circuits. Even when power is off, capacitors may retain an electrical charge. Use safety
glasses during open cover checks to avoid personal injury by any sudden component failure.
Neither AMETEK Programmable Power Inc., San Diego, California, USA, nor any of the subsidiary
sales organizations can accept any responsibility for personnel, material or inconsequential injury, loss
or damage that results from improper use of the equipment and accessories.
AMETEK Programmable Power California Instruments 4
User Manual Compact i/iX Series
SAFETY SYMBOLS
AMETEK Programmable Power California Instruments 5
User Manual Compact i/iX Series
WARRANTY TERMS
AMETEK Programmable Power, Inc. (“AMETEK”), provides this written warranty covering the
Product stated above, and if the Buyer discovers and notifies AMETEK in writing of any defect in
material or workmanship within the applicable warranty period stated above, then AMETEK may, at
its option: repair or replace the Product; or issue a credit note for the defective Product; or provide the
Buyer with replacement parts for the Product.
The Buyer will, at its expense, return the defective Product or parts thereof to AMETEK in
accordance with the return procedure specified below. AMETEK will, at its expense, deliver the
repaired or replaced Product or parts to the Buyer. Any warranty of AMETEK will not apply if the
Buyer is in default under the Purchase Order Agreement or where the Product or any part thereof:
is damaged by misuse, accident, negligence or failure to maintain the same as specified or
required by AMETEK;
is damaged by modifications, alterations or attachments thereto which are not authorized by
AMETEK;
is installed or operated contrary to the instructions of AMETEK;
is opened, modified or disassembled in any way without AMETEK’s consent; or
is used in combination with items, articles or materials not authorized by AMETEK.
The Buyer may not assert any claim that the Products are not in conformity with any warranty until
the Buyer has made all payments to AMETEK provided for in the Purchase Order Agreement.
PRODUCT RETURN PROCEDURE
Request a Return Material Authorization (RMA) number from the repair facility (must be done in the
country in which it was purchased):
In the USA, contact the AMETEK Repair Department prior to the return of the product to
AMETEK for repair:
Telephone: 800-733-5427, ext. 2295 or ext. 2463 (toll free North America)
858-450-0085, ext. 2295 or ext. 2463 (direct)
Outside the United States, contact the nearest Authorized Service Center (ASC). A full listing
can be found either through your local distributor or our website,
www.programmablepower.com, by clicking Support and going to the Service Centers tab.
When requesting an RMA, have the following information ready:
Model number
Serial number
Description of the problem
NOTE: Unauthorized returns will not be accepted and will be returned at the shipper’s
expense.
NOTE: A returned product found upon inspection by AMETEK, to be in specification is
subject to an evaluation fee and applicable freight charges.
AMETEK Programmable Power California Instruments 6
User Manual Compact i/iX Series
Table of Contents
1. Introduction ................................................................................................................................................... 11
1.1 General Description .......................................................................................................................................... 11
1.2 iX and i Model Differences ................................................................................................................................ 12
1.3 Manual organization and format ........................................................................................................................ 12
2. Specifications ................................................................................................................................................ 13
2.1 Electrical ........................................................................................................................................................... 13
2.2 Mechanical ........................................................................................................................................................ 24
2.3 Environmental ................................................................................................................................................... 25
2.4 Regulatory ......................................................................................................................................................... 25
2.5 Front Panel Controls, Indicators and Display .................................................................................................... 26
2.6 Special Features ............................................................................................................................................... 27
2.7 Available Options – i Series .............................................................................................................................. 28
2.8 Available Options – iX Series ............................................................................................................................ 28
2.9 LKM / LKS Options - Supplemental Specifications ........................................................................................... 29
2.10 RPF Option - Supplemental Specifications ....................................................................................................... 29
2.11 WHM Option - Supplemental Specification ....................................................................................................... 30
2.12 Supplemental Specifications ................................................................ ............................................................. 30
3. Unpacking and Installation ............................................................................................................................ 32
3.1 Unpacking ......................................................................................................................................................... 32
3.2 AC Input Power Requirements .......................................................................................................................... 32
3.3 Mechanical Installation ...................................................................................................................................... 32
3.4 Rear Panel Connectors ..................................................................................................................................... 34
3.5 AC Input Wiring - INPUT ................................................................................................................................... 35
3.6 Output Connections .......................................................................................................................................... 37
3.7 Connectors - Rear Panel ................................................................ ................................................................... 39
3.8 Basic Initial Functional Test .............................................................................................................................. 44
3.9 Multi-box Configurations ................................................................................................................................... 46
3.10 Clock and Lock Mode (-LKM/-LKS Option) ....................................................................................................... 49
3.11 Remote Control Interfaces ................................................................................................................................ 50
4. Front Panel Operation .................................................................................................................................. 51
4.1 Tour of the Front Panel ..................................................................................................................................... 51
4.2 Menu Structure .................................................................................................................................................. 56
4.3 Output Programming ......................................................................................................................................... 81
4.4 Waveform Management .................................................................................................................................... 83
4.5 Measurements .................................................................................................................................................. 86
4.6 Harmonic Analysis ............................................................................................................................................ 87
4.7 Transient Programming ................................................................................................................................ ..... 87
4.8 Setting the Power-on Initialization Values ......................................................................................................... 91
4.9 Remote Inhibit Function .................................................................................................................................... 92
5. Principle of Operation ................................................................................................................................... 93
5.1 Overall Description ............................................................................................................................................ 93
5.2 Amplifier Assembly............................................................................................................................................ 93
5.3 PFC Assembly .................................................................................................................................................. 93
5.4 EMI Filter ........................................................................................................................................................... 93
5.5 Auxiliary bias DC Supply ................................................................................................................................... 94
5.6 Range/Relay/Interface Assembly ...................................................................................................................... 94
5.7 Front Panel Assembly ....................................................................................................................................... 94
AMETEK Programmable Power California Instruments 7
User Manual Compact i/iX Series
6. Calibration ..................................................................................................................................................... 96
6.1 Recommended Calibration Equipment ............................................................................................................. 96
6.2 Calibration Screens ........................................................................................................................................... 96
6.3 Measurement Calibration .................................................................................................................................. 96
6.4 Output Calibration ............................................................................................................................................. 98
6.5 Non-Routine Output Offset and Gain Calibration .............................................................................................. 99
7. Service ........................................................................................................................................................ 101
7.1 Cleaning .......................................................................................................................................................... 101
7.2 General ........................................................................................................................................................... 101
7.3 Basic operation ............................................................................................................................................... 101
7.4 Self test ........................................................................................................................................................... 103
7.5 Advanced Troubleshooting. ............................................................................................................................ 103
7.6 Amplifier Module Data ..................................................................................................................................... 104
7.7 Factory Assistance .......................................................................................................................................... 107
7.8 Fuses .............................................................................................................................................................. 107
7.9 Replaceable Parts ........................................................................................................................................... 108
8. Miscellanuous Options ................................................................................................................................ 110
8.1 IEEE488 Interface (-GPIB) .............................................................................................................................. 110
8.2 Atlas Based Language Extensions (-ABL) ...................................................................................................... 110
8.3 Ethernet Interface (-LAN) ................................................................................................................................ 110
8.4 Clock and Lock (–LKM / -LKS) ................................................................ ........................................................ 110
8.5 Rack Mount Supports ...................................................................................................................................... 110
9. Option -160: RTCA / DO-160 Rev D, E ...................................................................................................... 111
9.1 General ........................................................................................................................................................... 111
9.2 Initial Setup ..................................................................................................................................................... 111
9.3 Available DO160 Tests ................................................................................................................................... 112
9.4 Front Panel Operation -160 ............................................................................................................................. 113
9.5 AC Test Mode ................................................................................................................................................. 114
9.6 DC Test Mode ................................ ................................ ................................................................................. 127
10. Option -704: MIL-STD 704 Rev D & E (MIL704 Mode) .............................................................................. 131
10.1 General ........................................................................................................................................................... 131
10.2 Initial Setup ..................................................................................................................................................... 131
10.3 Test Revision .................................................................................................................................................. 131
10.4 Available MIL-STD 704 Tests .......................................................................................................................... 132
10.5 Front Panel Operation MIL704 ........................................................................................................................ 133
10.6 AC Test Mode ................................................................................................................................................. 134
10.7 DC Test Mode ................................................................................................................................................. 141
11. Option –ABD: Airbus ABD0100.1.8 Test .................................................................................................... 145
12. Option –A350: Airbus ABD0100.1.8.1 Test ................................................................................................ 146
13. Option –AMD: Airbus AMD24 Test ............................................................................................................. 147
14. Option –B787: Boeing B787-0147 Test ...................................................................................................... 148
15. Option –WHM: Watt Hour Meter measurements ....................................................................................... 149
16. Error Messages .......................................................................................................................................... 150
17. Index ........................................................................................................................................................... 156
AMETEK Programmable Power California Instruments 8
User Manual Compact i/iX Series
List of Figures
Figure 1-1: Model 1501iX AC Source. .................................................................................................................................. 11
Figure 2-1: 751i / iX Voltage / Current Rating Chart for 150V AC Range. ............................................................................ 16
Figure 2-2: 751i / iX Voltage / Current Rating Chart for 300V AC Range. ............................................................................ 17
Figure 2-3: 1501i / iX Voltage / Current Rating Chart for 150V AC Range. .......................................................................... 17
Figure 2-4: 1501i / iX Voltage / Current Rating Chart for 300V AC Range. .......................................................................... 18
Figure 2-5: 751i / iX Voltage / Current Rating Chart for 200V DC Range. ................................................................ ............ 19
Figure 2-6: 751i / iX Voltage / Current Rating Chart for 400V DC Range. ................................................................ ............ 19
Figure 2-7: 1501i / iX Voltage / Current Rating Chart for 200V DC Range ........................................................................... 20
Figure 2-8: 1501i / iX Voltage / Current Rating Chart for 400V DC Range ........................................................................... 20
Figure 2-9: Typical frequency response, low Vrange, ALC off. ............................................................................................. 31
Figure 3-3: Rear Panel Connector Locations – i Models Series II (shown with –GPIB option) ............................................. 34
Figure 3-4: Rear Panel Connector Locations – iX Models Series II (shown with –LAN option) ............................................ 34
Figure 3-6: AC Input safety cover installation for Series II – Viewed from top. ..................................................................... 35
Figure 3-7: USB Connector pin orientation. .......................................................................................................................... 42
Figure 3-8: Functional Test Setup ......................................................................................................................................... 45
Figure 3-9: Location of amplifier configuration switch S2 when facing front of power source............................................... 47
Figure 3-10: 3001iX/2 Output Wiring .................................................................................................................................... 48
Figure 3-11: Clock and Lock Connections ............................................................................................................................ 49
Figure 4-1: Front Panel controls and indicators. ................................................................................................................... 51
Figure 4-2: Shuttle Knob ....................................................................................................................................................... 53
Figure 4-3: Menu Keys .......................................................................................................................................................... 54
Figure 4-4: Measurement Screen ......................................................................................................................................... 55
Figure 4-5: PROGRAM Menu ............................................................................................................................................... 61
Figure 4-6: CONTROL Menus .............................................................................................................................................. 63
Figure 4-7: MEASUREMENT Screen .................................................................................................................................... 66
Figure 4-8: Selecting a Waveform ........................................................................................................................................ 83
Figure 4-9: Waveform Crest Factor Affects Max. rms Voltage ............................................................................................. 84
Figure 4-10: Pulse Transients ............................................................................................................................................... 88
Figure 4-11: List Transients .................................................................................................................................................. 88
Figure 4-12: Sample Transient Output Sequence ................................................................................................................ 89
Figure 4-13: Switching Waveforms in a Transient List.......................................................................................................... 90
Figure 4-14: TRANSIENT Menu............................................................................................................................................ 90
Figure 6-1: Internal adjustment locations. ........................................................................................................................... 100
Figure 9-1: Application Menu .............................................................................................................................................. 113
Figure 9-2: DO160 Main Menus .......................................................................................................................................... 113
Figure 9-3: Normal state screens ........................................................................................................................................ 114
Figure 9-4: Voltage Modulation - Frequency characteristics ............................................................................................... 117
Figure 9-5: Frequency Modulation ...................................................................................................................................... 118
Figure 9-6: Power Interrupt ................................................................................................................................................. 119
Figure 9-7: Power Interrupt for Group2/A(NF) and Group3/A(WF) ..................................................................................... 120
Figure 9-8: Emergency Screens ......................................................................................................................................... 122
Figure 9-9: Abnormal Screen .............................................................................................................................................. 124
Figure 9-10: Normal State screens ..................................................................................................................................... 127
Figure 9-11: Abnormal State screens ................................................................................................................................. 129
Figure 10-1: Applications Menu .......................................................................................................................................... 133
Figure 10-2: MIL704 Menu .................................................................................................................................................. 133
Figure 10-3: Steady State Menu ......................................................................................................................................... 134
Figure 10-4: Emergency Menu............................................................................................................................................ 138
Figure 10-5: Abnormal Screens ................................................................................................................................ .......... 139
Figure 10-6: Emergency Test ............................................................................................................................................. 144
AMETEK Programmable Power California Instruments 9
User Manual Compact i/iX Series
List of Tables
Table 3-1: Output Terminal connections. .............................................................................................................................. 38
Table 3-2: Rear Panel Connectors ....................................................................................................................................... 39
Table 3-3: AC Line Input Terminal block. .............................................................................................................................. 40
Table 3-4: Output Terminal connections. .............................................................................................................................. 40
Table 3-5: DB9 I/O Connector............................................................................................................................................... 40
Table 3-6: BNC Connectors .................................................................................................................................................. 41
Table 3-7: USB Connector pin out. ....................................................................................................................................... 42
Table 3-8: GPIB Interface Connector pin out. ....................................................................................................................... 43
Table 3-9: RJ45 LAN Connector pin out. .............................................................................................................................. 43
Table 3-10: Load Resistance ................................................................................................................................................ 44
Table 3-11: Multi box system DIP settings ................................................................................................ ............................ 46
Table 4-1: Menu Tree ............................................................................................................................................................ 60
Table 4-2: Sample Transient List ................................................................ .......................................................................... 90
Table 4-3: Factory Default Power on Settings ...................................................................................................................... 91
Table 4-4: Remote Inhibit Modes. ......................................................................................................................................... 92
Table 6-1: Calibration Load Values- Single-chassis configurations ...................................................................................... 97
Table 6-2: Calibration Load Values- Multi-chassis configurations ........................................................................................ 97
Table 6-3: Output Calibration Coefficients - Factory Defaults. .............................................................................................. 98
Table 7-2: Replaceable Parts and Assemblies, Series II .................................................................................................... 109
Table 9-1: Normal Voltage and Frequency minimum ......................................................................................................... 115
Table 9-2: Normal Voltage and Frequency Maximum ......................................................................................................... 115
Table 9-3: Normal Voltage Unbalance ................................................................................................................................ 116
Table 9-4: Airbus mode voltage modulation. ...................................................................................................................... 116
Table 9-5: Normal VoltageSurge Sequence ....................................................................................................................... 120
Table 9-6: Normal Frequency Transient Sequence ............................................................................................................ 121
Table 9-7: Normal Frequency Variation Sequence ............................................................................................................. 121
Table 9-8: Emergency Voltage and Frequency Minimum ................................................................................................... 122
Table 9-9: Emergency Voltage and Frequency Maximum .................................................................................................. 122
Table 9-10: Emergency Voltage Unbalance ....................................................................................................................... 123
Table 9-11: Abnormal Voltage Minimum ............................................................................................................................. 124
Table 9-12: Abnormal Voltage Maximum ............................................................................................................................ 124
Table 9-13: Abnormal Voltage Unbalance .......................................................................................................................... 125
Table 9-14: Abnormal Frequency Transient........................................................................................................................ 126
Table 9-15: Normal Voltage Minimum................................................................................................................................. 127
Table 9-16: Normal Voltage Maximum ................................................................................................................................ 128
Table 9-17: Voltage Surge .................................................................................................................................................. 128
Table 9-18: Abnormal Voltage Surge .................................................................................................................................. 130
Table 10-1: Steady state voltage ........................................................................................................................................ 134
Table 10-2: Steady state frequency .................................................................................................................................... 135
Table 10-3: Frequency Modulation ..................................................................................................................................... 135
Table 10-4: Abnormal Over Frequency ............................................................................................................................... 140
Table 10-5: Abnormal Under Frequency ............................................................................................................................. 140
Table 16-1: Error Messages................................................................................................................................................ 155
AMETEK Programmable Power California Instruments 10
User Manual Compact i/iX Series
1. Introduction
This instruction manual (P/N 6005-960) contains information on the installation, operation, calibration
and maintenance of the Compact /iX Series AC power sources, models 751i, 751iX, 1501i and 1501iX.
Series II versions are covered in this user manual.
1.1 General Description
The Compact i/iX Series of AC Power Source is a family of high efficiency, rack mountable, AC Power
Sources that provide a precisely controlled output voltage with low distortion and measurements.
Standard output voltage ranges are 150 Vac and 300 Vac RMS. The 751i/iX and 1501i/iX models
operate in single-phase mode and provide a maximum output power of 750VA (751i/iX models) or
1500VA (1501i/iX models). A unique constant power mode allows for higher output current at less than
full-scale voltage effectively increasing the usability for many applications where otherwise a higher
power level AC source may be needed.
For power levels above 1500 VA, two iX Series units can be combined using the system interface in a
parallel mode of operation. These multi chassis systems consist of one master unit with controller and
one auxiliary unit.
Read the installation instructions carefully before attempting to install and operate the Compact i/iX
Series power source.
For three phase power applications, refer to California Instruments models 2253i and 2253iX, user
manual P/N 6005-962 instead.
Figure 1-1: Model 1501iX AC Source.
AMETEK Programmable Power California Instruments 11
User Manual Compact i/iX Series
1.2 iX and i Model Differences
The iX models offer additional features and functions over the i models. Some of the features available
on the iX models such as the GPIB interface may be added as an option to the i models at the time of
order. Other features are exclusive to the iX models.
Both models are based on the same AC power source hardware platform and share many common
components. The differences are primarily in configuration and options. This manual covers both
models. Some menus and screen shown in this manual may not apply to i model AC sources.
All 751i/iX and 1501i/iX models are equipped with a USB interface. The iX models also include a GPIB
interface. The GPIB interface can be specified as an option on the i models at the time of order. An
optional Ethernet interface (-LAN) is available on the iX models.
1.3 Manual organization and format
All user documentation for California Instruments power sources is provided on CDROM in electronic
format. (Adobe Portable Document Format) The required Adobe PDF viewer is supplied on the same
CDROM. This manual may be printed for personal use if a hardcopy is desired. To request a hardcopy
from AMETEK Programmable Power, contact customer service at support@programmablepower.com.
There will be an additional charge for printed manuals.
This manual contains sections on installation, normal use, maintenance and calibration.
Refer to the iX Series Programming manual for information on using the remote control interface and
command syntax. The programming manual (P/N 6005-961) is provided on the same CDROM as this
user manual.
AMETEK Programmable Power may make updated versions of this manual available from time to time
in electronic format through it’s website. To obtain an updated manual revision if available, check the
California Instruments Manual download page at www.programmablepower.com. You need to register
as a customer to obtain free access to manual and software downloads.
AMETEK Programmable Power California Instruments 12
User Manual Compact i/iX Series
Parameter
Specification
Model
751i / iX
1501i / iX
Line Voltage:
(single phase, 2 wire +
ground (PE))
115 – 230 VAC ± 10 %
(Universal input)
Line VA:
1050 VA / 1030 W
2000 VA / 1970 W
Line Current, full power:
< 8.9 Arms @ 115V
< 4.4 Arms @ 230V
< 17 Arms @ 115V
< 8.4 Arms @ 230V
Line Current at low line
input voltage, full power:
< 9.9 Arms @ 103.5V
< 4.8 Arms @ 207V
< 19.4 Arms @ 103.5V
< 9.3 Arms @ 207V
Line Frequency:
47-63 Hz
Efficiency (nominal line
input):
76 % (typical @ full load)
Power Factor:
0.98 (typical @ full load)
Power Factor at high line:
0.89 (typical @ full load)
Inrush Current:
180 Apk max.
Hold-Up Time:
> 10 ms
Isolation Voltage:
1350 VAC input to output
1350 VAC input to chassis
2. Specifications
Specifications shown are valid over an ambient temperature range of 25 5 C and apply after a 30
minute warm-up time. Unless otherwise noted, all specifications are per phase for sine wave output
into a resistive load. For three phase configurations or mode of operation, all specifications are for Line
to Neutral (L-N) and phase angle specifications are valid under balanced load conditions only.
Specifications for i models are identical to those for the iX except where noted.
2.1 Electrical
2.1.1 Input – Series II
Note: Specifications apply at nominal AC line input voltage unless indicated otherwise.
AMETEK Programmable Power California Instruments 13
User Manual Compact i/iX Series
Output Parameter
Specification
Modes
i models: AC, DC
iX models: AC, DC, AC+DC
Voltage
Ranges (L-N):
AC, AC+DC Mode
Low Vrange:
0 - 150 Vrms
High Vrange:
0 - 300 Vrms
DC Mode
Low Vrange:
0 - 200 Vdc
High Vrange:
0 - 400 Vdc
Programming Resolution:
0.1 V
Accuracy:
(ALC mode ON)
0.1% FS1 (from 5V to FS1)
Distortion THD2: < 1 % 16 - 1000 Hz
(harmonics and noise to 300 kHz)
Load Regulation:
(ALC mode ON)
0.1 % FS1
Voltage Sense modes:
Internal
External
External Sense
Up to 3 % of set voltage can be dropped across each load lead.
Line Regulation:
0.02% for 10% input line change
DC Offset Voltage:
(In AC mode)
< 20.0 mV
Output Noise:
(20 kHz to 1 MHz, full R load)
< 100 mV
RMS –
150V / 200V Range
< 200 mV
RMS –
300V / 400V Range
Output Coupling
Direct coupled
Output Impedance (Z) (@
max current)
Z = Vrange * 0.001 / I_load
Current
Model
751i / iX
1501i / iX
AC Mode
High Voltage range
2.5 Arms @ 300 V
3.25 Arms @ 230 V
5.0 Arms @ 300 V
6.5 Arms @ 230 V
Low Voltage range
5.0 Arms @ 150 V
6.5 Arms @ 115 V
10.0 Arms @ 150 V
13.0 Arms @ 115 V
Model
751i / iX
1501i / iX
2.1.2 Output
1
FS (Full Scale) refers to highest available range, e.g. 300Vac in AC mode, 400Vdc in DC mode.
2
The distortion specification applies at 77% voltage range, max current and resistive load conditions.
AMETEK Programmable Power California Instruments 14
User Manual Compact i/iX Series
Output Parameter
Specification
DC Mode – Series I
High Voltage range
1.25 Adc @ 400 V
1.67 Adc @ 300 V
2.5 Adc @ 400 V
3.25 Adc @ 300 V
Low Voltage range
1.25 Adc @ 200 V
1.67 Adc @ 150 V
1.25 Adc @ 200 V
1.63 Adc @ 150 V
DC Mode – Series II
High Voltage range
1.25 Adc @ 400 V
1.67 Adc @ 300 V
2.5 Adc @ 400 V
3.25 Adc @ 300 V
Low Voltage range
2.5 Adc @ 200 V
3.25 Adc @ 150 V
5.0 Adc @ 200 V
6.5 Adc @ 150 V
Model
751i / iX
1501i / iX
AC+DC Mode
High Voltage range
1.25 Arms @ 300 V
1.63 Arms @ 230 V
2.5 Arms @ 300 V
3.25 Arms @ 230 V
Low Voltage range
2.5 Arms @ 150 V
3.25 Arms @ 115 V
5.0 Arms @ 150 V
6.5 Arms @ 115 V
Current Limit mode
Programming resolution
Programmable, CC or CV mode
0.01A
Note: Constant power mode allows higher current at reduced voltage. Maximum current available at 77% of
voltage range. See Figure 2-1 through Figure 2-8 for voltage versus current profiles by model and
voltage range.
Maximum AC Peak Current
AC mode, High Vrange
AC mode, Low Vrange
10 Apk
20 Apk
20 Apk
40 Apk
Crest Factor AC Current
Maximum CF at full scale
voltage rms current
4:1
Power
Model
751i / iX
1501i / iX
AC Mode
750 VA
1500 VA
DC Mode (Series I)
High Voltage range
500 W
1000 W
Low Voltage range
250 W
250 W
DC Mode (Series II)
500 W
1000 W
AC+DC Mode
375 VA
750 VA
Frequency
Range:
16 Hz - 1000 Hz
Resolution1:
0.01 Hz [< 81.91 Hz]
0.1 Hz [> 82.0 to 819.1 Hz]
1 Hz [> 819 Hz]
1
Programming resolution reduced if –LKM/-LKS option is installed. See paragraph 2.9.
AMETEK Programmable Power California Instruments 15
User Manual Compact i/iX Series
Output Parameter
Specification
Accuracy:
± 0.025 %
Temp. Coefficient
± 5 ppm of value / °C
Stability:
± 15 ppm of value
751i/iX Voltage Current Profile - AC Low Vrange
0.00
1.00
2.00
3.00
4.00
5.00
6.00
7.00
0 25 50 75 100 125 150
Vrms
Irms
Note: All output specifications apply below the Current / Voltage rating line shown in the V/I
rating charts of sections 2.1.2.1 through 2.1.2.4.
2.1.2.1 Voltage versus Current Rating Charts – AC Mode – 751i/iX
Figure 2-1: 751i / iX Voltage / Current Rating Chart for 150V AC Range.
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User Manual Compact i/iX Series
751i/iX Voltage Current Profile - AC High Vrange
0.00
0.50
1.00
1.50
2.00
2.50
3.00
3.50
0 50 100 150 200 250 300
Vrms
Irms
1501i/iX Voltage Current Profile - AC Low Vrange
0.00
2.00
4.00
6.00
8.00
10.00
12.00
14.00
0 25 50 75 100 125 150
Vrms
Irms
Figure 2-2: 751i / iX Voltage / Current Rating Chart for 300V AC Range.
2.1.2.2 Voltage versus Current Rating Charts – AC Mode – 1501i/iX
AMETEK Programmable Power California Instruments 17
Figure 2-3: 1501i / iX Voltage / Current Rating Chart for 150V AC Range.
User Manual Compact i/iX Series
1501i/iX Voltage Current Profile - AC High Vrange
0.00
1.00
2.00
3.00
4.00
5.00
6.00
7.00
0 50 100 150 200 250 300
Vrms
Irms
Figure 2-4: 1501i / iX Voltage / Current Rating Chart for 300V AC Range.
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User Manual Compact i/iX Series
751i/iX Voltage Current profile - DC Low Range
0.00
0.50
1.00
1.50
2.00
2.50
3.00
3.50
0 20 40 60 80 100 120 140 160 180 200
751i/iX Voltage Current profile - DC High Range
0.00
0.20
0.40
0.60
0.80
1.00
1.20
1.40
1.60
1.80
0 50 100 150 200 250 300 350 400
2.1.2.3 Voltage versus Current Rating Charts – DC Mode – 751i/iX
Figure 2-5: 751i / iX Voltage / Current Rating Chart for 200V DC Range.
Figure 2-6: 751i / iX Voltage / Current Rating Chart for 400V DC Range.
AMETEK Programmable Power California Instruments 19
User Manual Compact i/iX Series
1501i/iX Voltage Current profile - DC Low Range
0.00
1.00
2.00
3.00
4.00
5.00
6.00
7.00
0 20 40 60 80 100 120 140 160 180 200
1501i/iX Voltage Current profile - DC High Range
0.00
0.50
1.00
1.50
2.00
2.50
3.00
3.50
0 50 100 150 200 250 300 350 400
2.1.2.4 Voltage versus Current Rating Charts – DC Mode – 1501i/iX
Figure 2-7: 1501i / iX Voltage / Current Rating Chart for 200V DC Range
AMETEK Programmable Power California Instruments 20
Figure 2-8: 1501i / iX Voltage / Current Rating Chart for 400V DC Range
User Manual Compact i/iX Series
Parameter
Range
Accuracy ( % FS)
Resolution
Frequency1
16.00-1000.0 Hz
0.1 %
0.01 Hz to 81.91 Hz
0.1 Hz to 819.1 Hz
1 Hz > 819.1 Hz
Voltage
0 - 400 Volts
0.1 %
0.01 Volt
Current
0 – 15 Amps
0.5 %
0.001 Amp
Peak Current
0 - 60 Amps
0.5 %
0.001 Amp
Crest Factor
1.00 –10.00
1.5 %
0.01
VA Power
0 - 4 KVA
0.5 %
1 VA
Real Power
0 - 4 KW
0.5 %
1 W
Power Factor
0.00 - 1.00
1 %
0.01
Note: Accuracy specifications are valid above 100 counts. For multi-chassis configurations, Current
and Power range and accuracy specifications are times the number of chassis.
Note: Frequency measurement specification valid for output > 20 Vrms.
Note: Crest Factor accuracy applies for Irms > 50% of max.
Note: Power Factor accuracy applies for PF > 0.5 and VA > 50% of max.
Parameter
Range
Accuracy ( % FS)
Resolution
Frequency fundamental
16.00 - 81.91 Hz
82.0 - 819.1 Hz
> 819.1 Hz
0.1%
0.01 Hz
0.1 Hz
1 Hz
Frequency harmonics
16.00 Hz – 48 kHz
0.5%
0.1 Hz
Voltage
Fundamental
0 - 400 Volts
0.5%
0.01V
Harmonic 2 - 50
0.5% + 0.5%/kHz
0.01V
Current
Fundamental
0 - 15 Amps
0.5%
0.01A
Harmonic 2 - 50
0.5% + 0.5%/kHz
0.01A
Note: For multi-chassis configurations, current accuracy specifications are times the number of
chassis.
2.1.3 Measurements
Measurement specifications apply to single chassis AC sources. See notes for other models and
configurations. Frequency, VA, power factor and crest factor only apply in AC or AC+DC modes.
2.1.4 Harmonic Measurements
Harmonic measurement specifications apply to 751iX and 1501iX model AC sources only.
1
Frequency measurement specifications valid with output voltage of 20Vrms or higher. If output relay is open, frequency
measurement will return 0.0 Hz.
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User Manual Compact i/iX Series
Controller Features
Specification
Trigger Input:
External trigger source input. Requires TTL level input signal. Triggers
on negative edge. Response time 80 - 100 s.
Function Strobe:
Logic output, active low. Pulse width > 400 s. Function strobe is
generated on any voltage or frequency program change or output relay
open/close. (Mutually exclusive with Trigger Out.)
Trigger Out:
Logic output, active low. Pulse width > 400 s. Trigger out is generated
based on user programmed transient trigger list. (Mutually exclusive with
Function Strobe.)
Non volatile memory
storage:
16 complete instrument setups and transient lists, 100 events per list.
50 User defined waveforms.
Waveforms
i Series: Sine.
iX Series: Sine, square, clipped, user defined
Transients
Voltage: drop, step, sag, surge, sweep
Frequency: step, sag, surge, sweep
Voltage and Frequency: step, sweep
Current Limit Modes:
Two selectable modes of operation:
1. Constant current mode (voltage folds back with automatic recovery)
2. Constant voltage mode with output relay trip-off (Output relay
opens).
Control Interfaces
USB
Standard USB 2.0 peripheral.
Data transfer rate: 460,800 bps
Syntax: SCPI
Note: Use of the USB port to control more than one power
source from a single PC is not recommended, as communication
may not be reliable. Use GPIB interface for multiple power source
control.
IEEE-488
AH1, DC1, DT1, L3, RL2, SH1, SR1, T6
IEEE 488.2 and SCPI
Response time is 10 ms (typical)
(Requires –GPIB option on 751i and 1501i)
LAN / Ethernet
RJ45 Connector, 10BaseT, 100BaseT or 1000BaseT,
Data transfer rate: 460,800 bps
Protocol: TCP/IP.
(-LAN Option on 751iX and 1501iX only)
2.1.5 System Specification
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User Manual Compact i/iX Series
Parameter
Specification
Input Over current:
Input Fuse. This fuse protects the equipment only and is not a branch
protection device. AC input connection should be made using a suitable
branch protection device per local electrical code.
Input Over voltage
Transients:
Surge protection to withstand EN50082-1 (IEC 801-4, 5) levels.
Output Over current:
Adjustable level constant current mode with programmable set point.
Output Short Circuit:
Peak and RMS current limit.
Over temperature:
Automatic shutdown.
2.1.6 Unit Protection
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User Manual Compact i/iX Series
Parameter
Specification
Dimensions:
Height: 3.5 inches (8.9 cm)
Depth: 23 inches (58.4 cm)
Width: 19 inches (48.3 cm)
All dimensions are per chassis. For /2 model configurations, multiply
height by 2 for total height. Width includes integrated front panel rack
mount ears.
Equipment Rack depth
requirement
25 inches (63.5 cm)
Unit Weight, Series II
Per chassis
Net:
751i / iX 30.2 lbs / 13.7 Kg approximately
1501i / iX 37.2 lbs / 17 Kg approximately
Shipping:
751i / iX 43 lbs / 19.5 Kg approximately
1501i / iX 50 lbs / 23 Kg approximately
All weights are per chassis. For /2 model configurations, each chassis is
packaged individually.
Material – Series II:
Aluminum chassis with aluminum top cover
Finish:
Powder coated external surfaces, color medium gray.
Cooling:
Fan cooled with air intake on the sides and front, and exhaust to the
rear.
Variable speed fan control.
Acoustic Noise
(Supplemental
specification)
Measured at 1 m distance:
Fan speed: Low power mode Full power mode
Front of unit: 41 dBA 51 dBA
Rear of unit: 43 dBA 56 dBA
Internal Construction:
Modular sub assemblies.
Rear Panel
Connections:
(See section 3 for description of connections)
AC input terminal strip.
AC output wiring and external sense terminal strip
USB, GPIB (option on i), LAN (option on iX)
Auxiliary I/O
System interface (2x)
2.2 Mechanical
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User Manual Compact i/iX Series
Parameter
Specification
Operating Temp:
0° to +40 C, full power.
+32° to +104° F, full power.
Storage Temp:
-40° to +85 C.
-40° to +185° F.
Altitude:
< 2000 meters
< 6000 feet
Relative Humidity:
0-80 % RAH, non-condensing maximum for temperatures up to 31C
decreasing linearly to 50% at 40C.
Operating Environment
Indoors Use Only. Ground benign.
Vibration:
Designed to meet NSTA project 1A transportation levels.
Shock:
Designed to meet NSTA project 1A transportation levels.
Electromagnetic Emissions
and Immunity:
Designed to meet EN50081-2 and EN50082-2 European Emissions and
Immunity standards as required for the “CE” mark.
Safety:
Designed EN61010-1 European safety standards as required for the
“CE” mark.
2.3 Environmental
2.4 Regulatory
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User Manual Compact i/iX Series
Controls:
Shuttle knob:
The rotating knob may be used to adjust settings while in the SET menu.
In all other menus, the shuttle may be used to change parameter values
and settings.
Up/down arrow keys:
A set of up and down arrow keys is used to move the cursor position in
all menus. This allows quick selection of the desired function or
parameter.
Function keys:
ON/OFF key for output relay control.
PHASE This key is reserved for use on 3 phase AC power source and
has no function on the 751i/iX and 1501i/iX.
SET key will show output voltage and frequency setting.
MEAS key displays the measurement screens. Measure key will display
measurement values for selected phase or phase A if all three phases
are selected.
MENU key selects main menu.
BACK key is used to back up to previous screen.
Keypad:
A numeric keypad contains numbers 0 through 9 as well as up and
down arrow keys, an Enter key, decimal point and polarity change (+/-)
key. The up and down arrow keys are used to move the cursor position
in all menus. This allows quick selection of the desired function or
parameter.
Indicators and Display:
Status indicators:
Status indicators inform the user of important power source conditions:
The Hi Range indicator is lit any time the unit is switched to the high
voltage range.
The Overtemp LED illuminates when internal heat sink temperatures
are too high.
The Overcurrent LED indicates that maximum programmed current limit
is being drawn at the output.
The Remote/LAN LED informs the user that the unit is under remote
control. During LAN operation it indicates that the unit has a valid IP.
The LAN LED will turn off if the LAN connection is broken, a duplicate IP
address is detected or the DHCP lease expires.
The Output indicator is on when the power source output relays are
closed.
LCD graphics display:
High contrast backlit LCD display. An adjustable viewing angle makes it
easy to read from all practical locations.
2.5 Front Panel Controls, Indicators and Display
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User Manual Compact i/iX Series
Controller Features
Parallel Operation:
Two i/iX chassis may be connected for parallel operation. The two
chassis must be connected using the system interface cable supplied
with the system.
Controller:
Programmable controller front panel assembly.
Output Relay:
Standard output relay feature to isolate power source from the load.
Output On/Off:
The output relay can be used to quickly disconnect the load. A yellow
status indicator displays the status of the output relay.
External Trigger Output
or Function Strobe
An external TTL output is available which may be used to trigger other
equipment. The TTL output can be controlled by the transient
programming system. This requires the trigger mode to be set to EXT
(factory default). This can only be done over the computer interface
using the OUTP:TTLT:MODE TRIG command.
It can also be configured to generate an output pulse any time the
voltage, frequency, current limit or phase programming is updated. This
requires the trigger mode to be set to FSTR. This can only be done over
the computer interface using the OUTP:TTLT:MODE FSTR command.
This mode is compatible with the CI Lx/Ls Series.
The Trigger Output (Trig Out) / function strobe is an active low TTL
signal with a duration of no less than 400 us.
Clock and Lock Mode
Enables two or more independent iX power systems to be phase
synchronized to each other. One system (-LKM) acts as the master, the
other(s) (-LKS) as auxiliaries. The –LKS units are synced to the –LKM
unit. Refer to section 3.10 for details on Clock and Lock mode.
Trigger Input
A TTL input signal may be used as a trigger source for output changes
programmed on the AC power source transient system. This requires the
trigger source to be set to EXT. This can only be done via one of the
computer interfaces. An external trigger source may be used to control
the execution of output sequences that have been pre-programmed into
the power source transient system. Refer to i/iX Series Programming
Manual (6005-961) for details.
2.6 Special Features
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User Manual Compact i/iX Series
Interface Options
-GPIB
GPIB Remote control interface. This option is not field installable and
must be specified at the time of original unit order.
Misc. Options
-ABL
Atlas Based Language Extension. The ABLE command language
provides bus compatability with 9012 PIP controllers.
-EXS
External sync input. This option is not field installable and must be
specified at the time of original unit order. This option is mutually
exclusive with the –LKS and -RPF option.
-RMS
Rack mount slides. Available for Series II models only.
-RPV
Remote programming voltage. DC voltage input 0 to 10 VDC for 0 to fullscale output voltage programming.
-RPF
Remote programming frequency. DC voltage input 0 to 10 VDC for 0 to
800 Hz output frequency programming. Input impedance is 20 Kohm.
This option is mutually exclusive with the –LKS and -EXS option.
-WHM
Watt-hour measurement option.
Interface Options
-LAN
Ethernet LAN interface connection. RJ45 connector. This option is not
field installable and must be specified at the time of original unit order.
Test Options
-160
RTCA/DO-160 Revision D and E, EuroCAE test firmware. Revision E
requires use of iXCGui software (included).
-704
Mil-Std 704 Revision D and E test firmware.
-704F
Mil-Std 704 Revisions A through F test firmware.
-ABD
Airbus ABD0100.1.8 test software. Requires use of iXCGui software
(included).
-AMD
Airbus A400M Directive AMD24 test software. Requires use of iXCGui
software (included).
-B787
Boeing B787-0147 test software. Requires use of iXCGui software
(included).
Misc. Options
-ABL
Atlas Based Language Extension. The ABLE command language
provides bus compatability with 9012 PIP controllers.
-EXS
External sync input. This option is not field installable and must be
specified at the time of original unit order. This option is mutually
exclusive with the –LKS and -RPF option.
-LKM
Clock and Lock Master. Enables synchronizing outputs of two iX AC
sources. This mode supports a frequency range of 16 to 819 Hz.
The –LKM applies to the master unit. This option is not field installable
and must be specified at the time of original unit order.
-LKS
Clock and Lock Auxiliary. See -LKM for details. The –LKS applies to the
2.7 Available Options – i Series
2.8 Available Options – iX Series
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User Manual Compact i/iX Series
auxiliary unit. (See Notes, see section 3.10.) This option is not field
installable and must be specified at the time of original unit order.
This option is mutually exclusive with the –RPF and –EXS option.
-RMS
Rack mount slides. Available for Series II models only.
-RPV
Remote programming voltage. DC voltage input 0 to 10 VDC for 0 to fullscale output voltage programming.
-RPF
Remote programming frequency. DC voltage input 0 to 10 VDC for 0 to
800 Hz output frequency programming. Input impedance is 20 Kohm.
This option is mutually exclusive with the –LKS option.
-WHM
Watt-hour measurement option.
Parameter
Supplemental Specification
Voltage
Voltage Distortion
Standard specifications apply.
Frequency
Range
16 – 819 Hz
Resolution
0.1 Hz
Accuracy
± 0.025%
Parameter
Supplemental Specification
Voltage
Voltage Distortion
Standard specifications apply.
Frequency
-RPF Range
0 – 819 Hz for 0 to 10 Vdc input.
Resolution
0.1 Hz
Accuracy
± 0.05 %
2.9 LKM / LKS Options - Supplemental Specifications
The Clock and Lock option enables two or more independent 751/1501iX power systems to be phase
synchronized to each other. One system (-LKM) acts as the master, the other(s) (-LKS) as auxiliaries. The –LKS
units are synced to the –LKM unit. Refer to section 3.10 for details on Clock and Lock mode.
The following supplemental specifications apply when the 751/1501iX is configured with the Clock and Lock
option. (-LKM or –LKS).
2.10 RPF Option - Supplemental Specifications
The –RPF option allows an external dc reference to be used to program the output frequency. The following
supplemental specifications apply when the 751/1501i/iX is configured with the remote programming frequency
option. (-RPF).
Note that loss of input signal while in RPF mode could result in a DC output from the AC source eventhough it is
in AC mode. If this is potentially damaging to the eut, care should be take to always have a minimum input signal
level. See section 3.7.3 (Auxiliary I/O Connector – J32) for RPF input connection.
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User Manual Compact i/iX Series
Parameter
Specification
Watt-Hour
Range:
0 – 999,999.9 WH
Resolution:
0.1 WH
Accuracy:
0.5% R +10 WH
Etime
Range:
0:00:00 to 9999:59:59
Resolution:
1 sec
Accuracy:
0.025 %
Output Parameter
Specification
Frequency response:
See Figure 2-9
Max. Voltage slew:
4V/us, measured step response into resistive load, 10% to 90 % full-
scale voltage.
Load Transient response
No load to full load:
Voltage recovers to within 2% in less than 2 ms
Full load to no load:
Voltage recovers to within 2% in less than 2 ms
Load Regulation response in
ALC mode
< 300 ms
Load Regulation:
(ALC mode OFF)
< 3 % FS1
2.11 WHM Option - Supplemental Specification
The following measurment accuracy specifications apply to the Watt Hour meter mode of operation:
2.12 Supplemental Specifications
Supplemental specifications are provided for reference only and are not guaranteed. Data is based on
typical performance of a Compact i/iX series power source but not verified on each unit produced as
part of AMETEK Programmable Power acceptance test.
Results on individual units may vary from the data provided here.
2.12.1 Output
1
FS (Full Scale) refers to highest available range, e.g. 300Vac in AC mode, 400Vdc in DC mode.
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Output Parameter
Specification
Bus command response time:
< 20 ms
Ext. Trigger response time
< 20 us
Figure 2-9: Typical frequency response, low Vrange, ALC off.
2.12.2 Remote Programming
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User Manual Compact i/iX Series
3. Unpacking and Installation
3.1 Unpacking
Inspect the unit for any possible shipping damage immediately upon receipt. If damage is evident,
notify the carrier. DO NOT return an instrument to the factory without prior approval. Do not destroy
the packing container until the unit has been inspected for damage in shipment. If possible, retain the
container in the event the system ever has to be returned to the factory for either repair or upgrades
WARNING: This power source weighs approximately 37 lbs / 17 kg (Series II). Obtain
adequate help when moving or installing the unit. For cabinet mounting, use rack supports
to support the weight.
3.2 AC Input Power Requirements
Series I
The i/iX Series I power source has been designed to operate from a single-phase, two wire AC input
line. A protective earth connection is required as well. (PE). Available AC input setting is either 115 or
230 VLN nominal.
CAUTION: Always check the input rating on the AC input voltage selector switch located
on the rear panel before connecting AC input power.
Series II
The i/iX Series II power source has been designed to operate from a single-phase, two wire AC input
line. A protective earth connection is required as well. (PE). The AC input is universal and will accept
any input voltage between 103.5VACLN rms and 253VACLN rms .
3.3 Mechanical Installation
3.3.1 Table top
The iX Series AC power sources can be used free standing on a solid surface or mounted in a 19”
instrument cabinet. The units are fan cooled, drawing air in from the side and exhausting at the rear.
The back of each unit must be kept clear of obstruction and a 3” clearance must be maintained to the
rear. Special consideration of overall airflow characteristics and the resultant internal heat rise must be
considered at all times to avoid self heating and over temperature problems.
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User Manual Compact i/iX Series
3.3.2 Rackmount
Series II
For Series II units, rack slide mounting holes are provided along the side of the unit. Note that only
correct length screws should be used to mount rack slides.
CAUTION: Do not attached rack slides using screws that are longer than TBD as some of
the mounting holes do not have blind studs and internal damage may be caused by longer
screws.
If the power source is to be mounted in cabinet system, proper supports such as rack slides, Lbrackets or a shelf must be provided to support the weight of the unit along its depth. The rack ears on
the front of the power source are not intended to support the entire weight of the unit and should only
be used to prevent the unit from sliding forward.
Contact the cabinet manufacturer for suitable rack support accessories.
3.3.3 Multi chassis
Multi chassis configurations consist of two self-contained iX Series power sources. They must be
connected through the system interface using the supplied cable. Output wiring from each chassis to
the EUT must be of equal wire gage and length to ensure proper current sharing between units.
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User Manual Compact i/iX Series
3.4 Rear Panel Connectors
3.4.1 Sereis II
All connections to and from the power source are made at the rear panel. For the location of the
connectors and types used, refer to Figure 3-1 for i Series II models or Figure 3-2 for iX Series II
models.
Figure 3-1: Rear Panel Connector Locations – i Models Series II (shown with –GPIB option)
Figure 3-2: Rear Panel Connector Locations – iX Models Series II (shown with –LAN option)
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User Manual Compact i/iX Series
3.5 AC Input Wiring - INPUT
AC input connections are to be made directly to the input terminal block. The AC input terminal block is
located on the right hand side on the back of the chassis (when facing the back of the unit). It is
labeled “AC INPUT”.
Before connecting the input wiring, the AC input safety cover (P/N 6005-214-1) stand-offs must be
installed. The two stand-offs and screws required to mount the safety cover are provided in the ship kit
(envelope) that comes with the AC power source. Screw the stand offs on to the AC input terminal strip
mounting screws (top and bottom of terminal block. Attach the safety cover to the stand offs using the
provided screws after connecting the AC input wiring.
For Series II units, the AC input line cord breaks out to the right. Refer to Figure 3-3 for Series II units.
Figure 3-3: AC Input safety cover installation for Series II – Viewed from top.
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User Manual Compact i/iX Series
Use
CI P/N
Description
Qty supplied
For use with:
INPUT (TB2)
FS2004
Ring Lug 12/10-6
3
115V AC input
INPUT (TB2)
FS2006
Ring Lug 16/14-6
3
230V AC input
AC Line Voltage
Wire Gauge
Metric Diameter
Nearest Metric Equivalent
115 V
AWG10
2.59 mm
6 mm2
230 V
AWG14
1.63 mm
2.5 mm2
Ground (earth) wire must be connected to the chassis of the AC power system using the ground
connection of the AC input terminal block. The mains source must have a current rating equal to or
greater than the input fuses and the input wiring must be sized to satisfy the applicable electrical
codes.
The AC input terminal strip accommodates a #6 ring or spade lug. The use of sleeved ring lugs (12/106 Yellow sleeve lug) or compressed cable lug is recommended.
Following input terminal lugs are included in i/iX ship kit:
The input power cord must be large enough to handle the input current of the power source and must
conform to local electrical codes. Route the AC input wiring throught the AC input safety cover strain
relief before attaching to the AC input terminal block. Note that all wires must be sized to
accommodate the worst-case maximum current that may occur under low line conditions. Local
electrical codes may also require different wire types and sizes.
Cable lengths must not exceed twenty-five (25) feet. For lengths greater than 25 feet, calculate the
voltage drop from the following formula:
2 X DISTANCE X CABLE RESISTANCE PER FT. X CURRENT = VOLT DROP
For cable lengths less than 25 feet, the following wire gauge AC line input cord is recommended:
Note: Always install supplied safety cover (P/N 6005-214-1) on AC input terminal block after
connecting input wiring and before applying power.
CAUTION: Capacitors in the power source may hold a hazardous electrical charge even if
the power source has been disconnected from the mains supply. Allow capacitors to
discharge to a safe voltage before touching exposed pins of mains supply connectors.
Power modules need at least 5 minutes to discharge to safe levels before they can be
removed.
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User Manual Compact i/iX Series
Wire Gauge
Metric Diameter
Nearest Metric Equivalent
AWG12
2.05 mm
4 mm2
3.6 Output Connections
3.6.1 Output Wiring
The output terminal blocks for each unit are located at the rear of the unit. Output connections are
made to the terminal block labeled OUTPUT. For a two-box system, the output terminals from both the
master and auxiliary units must be connected together. See Figure 3-7.
The external sense inputs allow the power system output voltages to be monitored directly at the load
and must be connected at output terminal connector. The external sense wires should be run as a
twisted pair for short lengths. Sense leads over three (3) feet long should be run as a twisted shielded
pair.
Note: The output of the power source is isolated from the input line and floating with respect
to chassis ground. If needed, either side (HI or LO) may be grounded.
The output power cables must be large enough to prevent a total voltage drop exceeding 3 % of the
programmed output voltage between the power source and the load. Note that wires must be sized to
accommodate the maximum current that is available. This may be a function of the voltage range.
Always use the current available on the low voltage range to size the wires.
For cable lengths less than 25 feet, the following wire gauge is recommended:
Cable lengths must not exceed twenty-five (25) feet. For lengths greater than 25 feet, calculate the
voltage drop from the following formula:
2 X DISTANCE X CABLE RESISTANCE PER FT. X CURRENT = VOLT DROP
AMETEK Programmable Power California Instruments 37
User Manual Compact i/iX Series
Use
CI P/N
Description
Qty supplied
For use with:
OUTPUT (TB2)
FS2004
Ring Lug 12/10-6
2
Output Hi, Output Lo
SENSE (TB2)
FS2002
Ring Lug 22/18-6
2
Sense Hi, Sense Lo
Connector
TB1
Terminal
Output
1
Output High 2
Sense High 3
Sense Low 4
Output Low
3.6.2 Output Terminal Block - OUTPUT
Each chassis has a single AC output terminal block. The output terminal block must be covered using
the supplied AC Output safety cover. The terminal blocks are large enough to accommodate required
wire gauge sizes. The terminal block is located in the upper left corner on the rear panel of the unit.
(Looking from the back). Connector type is Magnum, A307104R50.
The AC output terminal strip accommodates a #6 ring or spade lug. The use of sleeved ring lugs
(12/10-6 Yellow sleeve lug) or compressed cable lug for the load carrying output wiring is
recommended.
Following output terminal lugs are included in i/iX ship kit:
Multi-chassis configurations have two output terminal blocks, one on the master chassis and one of the
auxiliary chassis.
For operation as a multi-chassis system, the outputs of all chassis must be connected together using
the additional terminal blocks provided in the ship kit. Keep the wire lengths between each chassis
and this common terminal block the same.
See Figure 3-7 for multi-chassis output wiring diagram.
Table 3-1: Output Terminal connections.
AMETEK Programmable Power California Instruments 38
User Manual Compact i/iX Series
Connector
Ref.
i / iX Series
AC Input
(INPUT)
Function
Connects To
L – AC in
N – AC in
G – Chassis Gnd
TB2
Primary AC Power Input
115 VAC or 230 VAC nominal
AC Output
(OUTPUT)
Function
Connects To
1 - Output High
2 - Sense High
3 - Sense Low
4 - Output Low
TB1
AC output
User Load
i Series
Remote Control
Function
Table
USB
J34
USB Control Interface
IEEE-488
J33
GPIB Control Interface
See IEEE-488 standard for pin out.
Option –GPIB.
System Interface
Function
Table
Master
J30
Connects to Master
DB15, MALE
Auxiliary
J31
Connects to Auxiliary
DB15, FEMALE
iX Series
Remote Control
Function
Table
USB
J34
USB Control Interface
IEEE-488
J33
GPIB Control Interface
See IEEE-488 standard for pin out.
LAN
J35
Ethernet Interface
Option -LAN.
System Interface
Function
Table
Master
J30
Connects to Master
DB15, MALE
Auxiliary
J31
Connects to Auxiliary
DB15, FEMALE
i / iX Series
Other
Function
Table
DB9
J32
Aux I/O
Table 3-5
BNC Connectors
J28
Clock
Table 3-6 -LKM / -LKS option
J29
Lock
Table 3-6
3.7 Connectors - Rear Panel
A number of connectors are located along the top rear panel of the unit. A summary of available
connectors is provided in the table below.
AMETEK Programmable Power California Instruments 39
Table 3-2: Rear Panel Connectors
User Manual Compact i/iX Series
Terminal
Designator
Connection Description
1
Line
AC Line
2
Neutral
AC Neutral
3
GND
Chassis Ground
Terminal
Designator
Connection Description
1
HI Output
Output Load High
2
HI Sense
Sense High
3
LO Sense
Sense Low
4
LO Output
Output Load Low
Pin
Signal
Description
1
ACOM
Analog Common
2
RPV
Remote Programming Voltage (Option -RPV)
3
RPF
Remote Programming Frequency (Option –RPF)
4
/INH
Remote Inhibit. (TTL input)
5
TRIG IN
Trigger Input (TTL input)
6
FSTB
Function Strobe or Trigger Output (TTL output)
7
DFI
Discrete Fault Indicator output. Isolated Open
Collector. Can be used to signal external devices
when a fault condition is detected.
8
DCOM
Digital Common
9
n/a
Not used.
3.7.1 AC Input Connector – INPUT – TB2
See section3.4.1 for details on connecting AC input power. Connector type is Beau (Molex), 73203.
Table 3-3: AC Line Input Terminal block.
3.7.2 Output Terminal Block – OUTPUT – TB1
Each chassis has a single AC output terminal block. The output terminal block must be covered using
the supplied AC Output safety cover. The terminal blocks are large enough to accommodate required
wire gauge sizes. The terminal block is located in the upper left corner on the rear panel of the unit.
(Looking from the back). Connector type is Magnum, A307104R50. The use of spade or ring lugs is
recommended.
3.7.3 Auxiliary I/O Connector – J32
A DB9, 9-pin I/O connector is located on the rear panel. Table 3-5 shows connections by pin number.
Table 3-4: Output Terminal connections.
Table 3-5: DB9 I/O Connector
AMETEK Programmable Power California Instruments 40
User Manual Compact i/iX Series
BNC
Ref.
Description
CLOCK
J28
Clock Option (TTL output on Master / TTL input on Auxiliary)
LOCK
J29
Lock Option (TTL output on Master / TTL input on Auxiliary)
3.7.4 BNC Connectors (-LKM / -LKS options) – J28/J29
BNC connectors. Functions are called out on rear panel decal. Table 3-6 shows connections for the
optional -LKM and -LKS clock and lock mode. This option is available on iX models. Refer to section
3.10 for more details.
Table 3-6: BNC Connectors
3.7.5 System Interface Connectors – MASTER (J30) and AUXILIARY (J31)
WARNING: The system interface connectors are for use with AMETEK Programmable
Power supplied cables, and only between California Instruments equipment.
A set of two System Interface connectors is located on the rear panel of each iX Series chassis. The
system interface is used to connect two power sources in a Master/Auxiliary configuration to create a
1501iX/2, 1501i/2, 3001iX/2 or 3001i/2 AC power source configuration. A suitable System Interface
cable MUST be used to connect both chassis as shown in Figure 3-7.
Note that no user accessible signals are provided on the System Interface connections and they
should only be used for their intended purpose.
AMETEK Programmable Power California Instruments 41
User Manual Compact i/iX Series
Pin
Name
Description
1
VBUS
+5 VDC 2 D-
Data - 3 D+
Data + 4 GND
Ground
Pin #
Signal
Names
Signal Description
Pin #
Signal
Names
Signal Description
1
DIO1
Data Input/Output Bit 1
13
DIO5
Data Input/Output Bit 5
2
DIO2
Data Input/Output Bit 2
14
DIO6
Data Input/Output Bit 6
3
DIO3
Data Input/Output Bit 3
15
DIO7
Data Input/Output Bit 7
4
DIO4
Data Input/Output Bit 4
16
DIO8
Data Input/Output Bit 8
5
EOI
End-Or-Identify
17
REN
Remote Enable
6
DAV
Data Valid
18
Shield
Ground (DAV)
7
NRFD
Not Ready For Data
19
Shield
Ground (NRFD)
8
NDAC
Not Data Accepted
20
Shield
Ground (NDAC)
9
IFC
Interface Clear
21
Shield
Ground (IFC)
10
SRQ
Service Request
22
Shield
Ground (SRQ)
11
ATN
Attention
23
Shield
Ground (ATN)
3.7.6 USB Interface – J34
A standard USB Series B device connector is located on the rear panel for remote control. A standard
USB cable between the AC Source and a PC or USB Hub may be used.
Note: Use of the USB port to control more than one power source from a single PC is not
recommended, as communication may not be reliable. Use GPIB interface for multiple
power source control.
Figure 3-4: USB Connector pin orientation.
3.7.7 GPIB Interface – J33
A standard IEEE488/ANSI MC1.1; 24 pin GPIB connector is located on the rear panel on al iX models.
Maximum cable length is 20 meters, or 2 meters per device - whichever is less. Maximum number of
devices is 15. Devices may be connected in either a Star or Linear fashion. Set crews with Metric
threads are black.
Note: On “i” models, the GPIB interface is optional. If not installed, this connector is not
present.
Table 3-7: USB Connector pin out.
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User Manual Compact i/iX Series
Pin #
Signal
Names
Signal Description
Pin #
Signal
Names
Signal Description
12
Shield
Chassis Ground
24
Single
GND
Signal Ground.
Pin
Ethernet TPE
10BaseT/100BastT/1000BaseT
EIA/TIA 568A
EIA/TIA 568B
Crossover
1
Transmit/Receive Data 0 +
White with green stripe
White with orange stripe
2
Transmit/Receive Data 0 -
Green with white stripe or
solid green
Orange with white stripe or
solid orange
3
Transmit/Receive Data 1 +
White with orange stripe
White with green stripe
4
Transmit/Receive Data 2 +
Blue with white stripe or
solid blue
Blue with white stripe or
solid blue
5
Transmit/Receive Data 2 -
White with blue stripe
White with blue stripe
6
Transmit/Receive Data 1 -
Orange with white stripe
or solid orange
Green with white stripe or
solid
7
Transmit/Receive Data 3 +
White with brown stripe or
solid brown
White with brown stripe or
solid brown
8
Transmit/Receive Data 3 -
Brown with white stripe or
solid brown.
Brown with white stripe or
solid brown
Table 3-8: GPIB Interface Connector pin out.
3.7.8 LAN Interface – RJ45 – J35
An optional RJ45 Ethernet 10BaseT connector is located on the rear panel for remote control. A
standard RJ45 UTP patch cord between the AC Source and a network Hub may be used to connect
the AC source to a LAN. For direct connection to a PC LAN card, a crossover RJ45 cable is required.
Consult your network administrator for directions on connecting the AC source to any corporate LAN.
If the –LAN Ethernet interface option is present, the MAC Address (Media Access Control) of the
Ethernet port is printed on the serial tag of the power source. The serial tag is located on the rear panel
of the unit.
For information on how to set up a network connection or a direct PC connection using the LAN
interface, refer to the i/iX Series Programming Manual P/N 6005-961 distributed in Adobe PDF format
on CD ROM CIC496.
LAN
Table 3-9: RJ45 LAN Connector pin out.
AMETEK Programmable Power California Instruments 43
User Manual Compact i/iX Series
Model
115V on 150 V range
230V on 300 V range
751i/iX
20 Ohm
80 Ohm
1501i/iX
10 Ohm
40 Ohm
3.8 Basic Initial Functional Test
CAUTION: Work carefully when performing these tests; hazardous voltages are
present on the input and output during this test.
Refer to Figure 3-5 for the required functional test set up. Proceed as follows to perform a basic
function check of the power system:
1. Verify the correct AC line input rating on the nameplate and the AC line input selector switch at the
rear panel. Make sure the correct line voltage is selected before applying input power.
2. Connect a suitable resistive or other type load to the output of the unit. Suggested load values for
both voltage ranges are shown in Table 3-10. Make sure the power resistor has sufficient power
dissipation capability for full load test and that the load used does not exceed the maximum power
rating of the AC source.
3. Connect an oscilloscope and DMM / voltmeter to the AC source output. Set both for AC mode.
4. Turn on the power source using the On/Off switch on the front panel. Allow the power source to
initialize.
5. Set the output voltage to 0 volt and close the output relay with the OUTPUT ON/OFF button.
There should be little or no output although the DMM may show a noise level, especially if the
DMM is in auto ranging mode.
6. Select the Set screen and use the keypad to program a small voltage (20 VAC). Observe the DMM
reading. The reading should track the programmed voltage.
7. Also monitor the scope display. The output signal should be a sinusoidal voltage waveform.
8. If the output tracks, increase the voltage until you reach 115V on the low voltage range or 230V on
the high voltage range. Check the output voltage reading and waveform.
9. Select the measurement screen by pressing the Meas button. The output voltage, current and
power will be displayed.
In the unlikely event the power source does not pass the functional test, refer to the calibration
procedure in Section 6 or call California Instrument’s customer satisfaction department for further
assistance.
Table 3-10: Load Resistance
AMETEK Programmable Power California Instruments 44
User Manual Compact i/iX Series
R
LOAD
Sense
High
Sense
Low
Output AC
Figure 3-5: Functional Test Setup
AMETEK Programmable Power California Instruments 45
User Manual Compact i/iX Series
Amplifier, A9
Amplifier, A10 if installed (1501i/iX)
6005-701-1 Rev H or lower
6005-701-1 Rev H or lower
S1
S2 (4 position)
S3
S1
S2 (4 position)
S3
All-OFF
1&2-ON
3&4-OFF
1-OFF
2-ON
All-OFF
1&2-ON
3&4-OFF
1-OFF
2-ON
6005-701-1 Rev J or higher
6005-701-1 Rev J or higher
S1
S2 (2 position)
S3
S1
S2 (2 position)
S3
All-OFF
1-OFF
2-OFF
1-OFF
2-ON
All-OFF
1-OFF
2-OFF
1-OFF
2-ON
3.9 Multi-box Configurations
Multi-box configurations consist of two identical i/iX power source models operating in a
master/auxiliary mode. The master unit is used to program the output for both units. The auxiliary
controller will display a message indicating it is operating as an auxiliary unit1.
The operate two units in a master/auxiliary mode, proceed as follows:
1. Turn off both units.
2. Reconfigure the unit, which will be the auxiliary to operate as an auxiliary unit. This requires
removal of the top cover to adjust the 4-pole DIP switch S2 on the master amplifier (A9) of the
auxiliary unit. The master amplifier is positioned on the right hand side when facing the front of
the unit. The auxiliary amplifier (1501i/iX models only) is located in the middle and requires no
changes in setting. See Table 3-11 for details.
Note that on some compact i/iX models, S2 is a four-position dip switch. On newer models, a
two-position dip switch is used. For either version of the amplifier control board, the S2 dip
switch is located towards the rear of the amplifier. See Figure 3-6 for location.
3. Connect the system interface cable between the two units using the DB15 system connecters
on the rear panel. Use the TO AUX connector on the master unit and the TO MASTER
connector on the auxiliary unit.
4. Connect the output terminals (HI to HI and LO to LO) of each unit’s output together using a
suitable terminal block. Make sure the output wires from each unit to this common point of
connection are equal length.
5. Verify that the master unit is correctly configured. See CONFIGURATION menu, section 4.2.9.
Table 3-11: Multi box system DIP settings
Note: To reconfigure and auxiliary 751/1501 power source to stand alone operation, set S2 on the A9
module back to to ALL-ON and disconnect the outputs and system interface cable. The auxiliary unit
can now be used stand alone. On the master unit, set the system field back to 751 or 1501 depending
on the model of the unit.
1
This message will disappear when the controls on the auxiliary unit are operated. However, changing settings on the
auxiliary unit controller will not affect the output. Use the master unit controller and or remote control interface to operate
the system.
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User Manual Compact i/iX Series
Figure 3-6: Location of amplifier configuration switch S2 when facing front of power source.
AMETEK Programmable Power California Instruments 47
User Manual Compact i/iX Series
L N Gnd
AC Line
Master power source
Auxiliary power source
System
Interface
Cable
To
Load
Junction
Block
Equal length
output wires
Output High
Output Low
Multi-chassis Output Wiring Diagram
Figure 3-7 shows the required output connections for a two chassis system (rear-view perspective).
Always turn off both the Master and Auxiliary power source before making or changing output
connections. The terminal block shown to connect the outputs of both chassis together is provided in
the ship kit. The System Interface cable is a high density HD15 to HD15 M/F cable approximately 1.5
meters in length. (www.l-com.com, P/N CHD15MF-5). This cable connects between the male DB15
connector on the Master unit rear panel labeled TO AUXILIARY and the female DB15 connector on the
Auxiliary unit rear panel labeled TO MASTER as shown in Figure 3-7. (Shown for Series I but similar
for Series II models).
3.9.1 Power Up and Power Down sequence.
A multi-box i/iX system can be turned on in either order.
Note: It is not recommended to turn off either unit without turning off the other unit and then
turning it back on. This may result in miscellaneous error messages occurring on the
unit that was not powered down. If one unit has been turned off, turn off all units first
before turning the system back on.
If a master unit is to be used by itself, it is not sufficient to just leave the auxiliary unit off while the
system interface cable remains connected. Disconnect the system interface from the back of the
master unit and then turn the unit on for stand-alone use. It is also necessary to reconfigure the system
configuration in the CONFIGURATION menu, section 4.2.9.
Figure 3-7: 3001iX/2 Output Wiring
AMETEK Programmable Power California Instruments 48
User Manual Compact i/iX Series
Master power source (-LKM)
Auxiliary power source (-LKS)
L N Gnd
AC Line
CLOCK
LOCK
3.10 Clock and Lock Mode (-LKM/-LKS Option)
Clock and lock mode operation of two or more iX AC power sources is available only if the –LKM and –
LKS options have been installed at the factory. With these options installed, it is possible to lock an
auxiliary unit (-LKS) to a master unit (-LKM). The master unit controls the frequency. This configuration
can be used to create multiphase power systems such as split-phase or three phases. The auxiliary
unit must be set to external clock mode from the Control screen. See section 4.2.5.
Two BNC connectors are provided on the rear panel of the iX model for clock and lock mode. Both
need to be connected between the master and auxiliary unit. On the master unit (-LKM), both are
outputs. On the auxiliary unit (-LKS), both are inputs. Do not connect these BNC’s between two master
units (-LKM’s) or damage to the unit could result.
Figure 3-8: Clock and Lock Connections
Refer to Figure 3-8 for the required connections between the –LKM and –LKS units. (Shown for Series
I but similar for Series II models). The example is shown for two units, one master, one auxiliary. More
than one auxiliary can be used to create additional phase outputs. In this case, the BNC cables can be
daisy chained using BNC T connectors.
WARNING: DO NOT CONNECT THE AC OUTPUTS OF THE –LKM AND –LKS UNITS TOGETHER.
CLOCK AND LOCK OUTPUTS CANNOT BE PARALLELED TO OBTAIN HIGHER OUTPUT
CURRENTS.
Do not use clock and lock mode to obtain higher power capability on the same phase(s). For higher
power configurations, use the multi-chassis configuration through the system interface connection
instead. Refer to section 0 for multi-chassis configuration and connection information.
The frequency of the auxiliary unit will track that of the master. The output phase angle of phase 1/A
will be locked to the auxiliary unit as well to within 3°. This allows split phase or multi-phase
configurations to be created.
AMETEK Programmable Power California Instruments 49
User Manual Compact i/iX Series
3.10.1 Configuration settings
Units configured with the –LKM option will show the Clock as INT (internal) and the mode as CLK/LOC
on the CONTROL screen. Units configured with the –LKS option can be set to INT (internal) or EXT
(external) clock from the CONTROL screen. The MODE setting on the CONTROL screen of the –LKS
unit determines the power on state for the clock setting. When set to STAN (Stand-alone operation),
the unit powers up with INT clock. When set to CLK/LOC mode, it powers up in EXT clock mode
suitable to clock and lock system operation. See section 4.2.5 for details.
3.10.2 Frequency measurements on –LKS units
AC power source models configured with the –LKS option used in a clock and lock configuration may
not accurately measure frequency if the programmed frequency of the master unit (-LKM) is
significantly different from the frequency setting of the auxiliary unit (–LKS). Setting the –LKS
programmed frequency when it is operating as a clock and lock auxiliary does not affect its actual
output frequency as it is controlled by the –LKM master unit. The frequency setting provides the
auxiliary controller with the required information to accurately measure the frequency.
3.11 Remote Control Interfaces
Setup and connection information on setting up remote control using either GPIB, USB or LAN
interfaces is provided in the iX Series Programming Manual P/N 6005-961. This manual is distributed
on the same CD ROM (P/N CIC496) as this user manual. It can also be downloaded from the
AMETEK Programmable Power website (www.programmablepower.com).
Connector pin out information is provided in sections 3.7.6, 3.7.7 and 3.7.8 of this manual.
Note: Use of the USB port to control more than one power source from a single PC is not
recommended, as communication may not be reliable. Use GPIB interface for multiple
power source control.
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4. Front Panel Operation
4.1 Tour of the Front Panel
Before operating the AC source using the front panel, it helps to understand the operation of the front
panel controls. Specifically, the operation of the rotating shuttle knob, keyboard and the menu layout
are covered in the next few paragraphs.
4.1.1 Front Panel Controls and Indicators
The front panel can be divided in a small number of functional areas:
AC Input power on/off switch
Keyboard/ Display:
Status Indicator lights
Dual line LCD display (2 x 16 characters)
Output On/Off key
Menu Keys
Data Entry Keypad
Shuttle Knob
4.1.2 Input Power On/Off switch
The power on/off switch is located on the left side of the front panel of the unit and disconnects the AC
Line input.
Figure 4-1: Front Panel controls and indicators.
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4.1.3 Status Indicator Lights
Five yellow LED status indicators are located on the left hand side of the keyboard/display panel.
These LED’s correspond to the following conditions:
Hi Range The Hi Range LED is on when the high voltage output range has
been selected.
Overtemp The Overtemp LED indicates an overheating problem inside the unit.
This is an abnormal condition, which will cause the unit to shut off.
Check the air openings to make sure they are not blocked.
Overcurrent The Overcurrent LED indicates an output current that exceeds the
programmed setting. This condition can be controlled by setting the
current limit value in the PROGRAM menu. Removing the load using
the OUTPUT ON/OFF button will recover from an overload condition
when in CV mode.
Remote The Remote LED indicates that the unit is in remote control mode. If
the IEEE-488 interface is used, this indicator will be lit whenever the
ATN line (Attention) line for the GPIB address set is asserted by the
IEEE controller. If the USB or LAN interface is used, the REMOTE
state can be enabled by the controller using the SYST:REM
command. Any time the Remote LED is lit, the front panel of the
power source is disabled. Note: The BACK button doubles as a
GOTO LOCAL button (LOCAL) while the unit is in remote state. This
allows the user to regain control of the front panel. The LOCAL button
can be disabled by sending a Local Lockout bus command. This
prevents unauthorized changes of settings in ATE applications.
Output The Output LED indicates the output relay status. If the LED is off,
the output relay is open. If the LED is on, the output relay is closed.
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Counter
Clock
wise
Clock
wise
INCRDECR
4.1.4 The Shuttle Knob
Figure 4-2: Shuttle Knob
The i/iX Series has a single rotating knob (“shuttle”). This shuttle knob is located to the right of the
numeric keypad. This knob may be used to continuously vary parameter values or select from multiple
settings in a given menu field. The parameter or field affected by turning the shuttle knob is indicated
by a left pointing arrow (cursor) on the LCD display. Note that it is not possible to move this cursor
position between menu fields using the knob. Use the UP and DOWN arrow (cursor) keys for this
instead. Data and parameter entry can also be done through the numeric keypad.
The shuttle knob can operate in one of two distinct modes of operation:
MODE DESCRIPTION
IMMEDIATE mode Any time the ENTER key is pressed, the power source returns to its
normal mode of operation. In this mode, changes made with the
shuttle knob will take immediate effect. The IMMEDIATE mode is
useful for continuously varying output values such as voltage and
frequency and observing the effect on the load.
SET mode When the Set key is pressed again while the PROGRAM screen is
already displayed, changes made with the shuttle to any output
parameter will not take effect until the ENTER key is pressed. In this
mode, any changes made to a setup menu will have a blinking cursor
to indicate the pending change condition. This mode allows changes
to be made to all output parameters and executing them all at once by
pressing the ENTER key.
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4.1.5 Menu Keys
The i/iX Series is operated through a series of menus. These menus can be reached by using a
number of menu keys located along the bottom of the LCD display and the UP/DOWN cursors keys.
Several menus have more than two entries. Since the LCD display has two display lines, additional
entries may not be visible but can be reached by scrolling up or down using the UP/DOWN cursor
keys. The following menu keys are available:
Figure 4-3: Menu Keys
KEY DESCRIPTION
ON/OFF The ON/OFF key located to the left of the Menu keys may be used to
control the state of the output relay. The active state is indicated by
the Output LED. If the output relays are open (LED is off), the output
is floating.
PHASE The PHASE key is reserved for use on three phase power source
models. On 751i/iX and 1501i/iX models, this key has no function and
is a don’t care.
SET The SET key selects the PROGRAM setting screen. While this screen
is displayed, the rotary knob can be used to change either voltage or
frequency. Additional output settings such as current limit can be
reached by using the down cursor key.
For test options such as –704 or –160, the SET key can be used to
skip to the next test in a test sequence during test execution.
MEAS The MEAS key selects the measurement screen for the selected
phase. If all three phases are selected, the measurement data for
phase A will be displayed. There are no user changeable fields in the
measurement screen. The rotary knob is active while the
measurement screen is displayed. Additional measurement data can
be displayed by using the up and down cursor keys.
MENU The top-level menu is accessed by pressing the MENU key. Refer to
section 4.2 for details on available menus.
BACK The BACK key may be used to back up to the previous menu level or
previously selected screen. It can also be used as a backspace key to
delete the last digit entered.
For tests options such as the –160 and –704 options, the BACK key
can be used to abort a test in progress.
If the unit is in remote mode, (Remote LED is lit), the front panel of
the power source is disabled. The BACK button doubles as a GOTO
LOCAL button (LOCAL) while the unit is in remote state. This allows
the user to regain control of the front panel. This LOCAL button can
be disabled by sending a Local Lockout bus command. This prevents
unauthorized changes of settings in ATE applications.
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4.1.6 Cursor and Enter Keys
The cursor keys are located on the right hand side of the numeric keypad and can be used to scroll
through a list of menu entries:
CURSOR UP () The UP key moves the cursor position upwards one position to the
previous available cursor position.
CURSOR DOWN () The DOWN key moves the cursor position downwards one position to
the next available cursor position.
ENTER The blue Enter key is used to confirm selections made in menus or
to active settings made in SET mode.
4.1.7 LCD Display
The LCD display of the power source provides information on instrument settings and also guides the
user through the various menus. A sample of the measurement display screen is shown in Figure 4-4.
Menus are accessed by scrolling through two or more entries. Alternatively, the Menu key may be
pressed repeatedly to access additional available menu entries.
The active cursor position is indicated by a LEFT POINTING ARROW () and can be moved by using
the UP ()and DOWN () keys located on the right hand side of the numeric keypad.
Figure 4-4: Measurement Screen
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4.2 Menu Structure
The next few pages show a map of the available menus in the i/iX Series. All menus can be reached
by repeatedly pressing the MENU key. Frequently used menus have a short cut key that provides
direct access. Examples of such menus are Program and Measurements. In any case, there are never
more than two levels of menus although some menus may be spread across more than one screen.
4.2.1 Power on screens
At initial power up, the i/iX Series power supply will display important configuration information in a
series of power on screens. These displays are only visible for a short period of time and will not reappear until the next time the unit is turned on.
There are three screens that will appear in the same order:
1. LANetwork detection... At power up, the unit will try to detect a LAN interface. If not found, a “LAN
not available” message will appear. The LAN will not be detected if:
1. No –LAN option is installed.
2. The USB port is connected to a computer.
3. The RS232 port jumper is installed.
This process may take several seconds.
2. Initialization in progress. This means the firmware has started to load.
3. Company and firmware information. Displays the manufacturer - Cal Inst., which is short for
California Instruments - and the firmware part number and revision. The firmware part number
starts with CIC followed by a three-digit code and dash number. The firmware revision has a major
revision before the decimal point and a minor revision after the decimal point.
4. Model and Serial number information. The model will be a function of the configuration and will
include the series designation (i or iX). The serial number is a 5-digit number. This number should
match the model type sticker located on the back of the unit.
5. Memory test result. If all memory tests pass at power on, the message "MEMORY TEST
PASSED" will appear. If not, an error message will be displayed instead. This information may be
useful when calling in for service support.
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Once the power on sequence is completed, the power source will always revert to the PROGRAM
screen shown here.
The power source is now ready to be used.
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ENTRY
DESCRIPTION
PROGRAM
The PROGRAM menu allows primary output parameters such as
voltage, frequency, current limit, waveform shape and voltage
range to be changed.
CONTROL
The CONTROL menu allows secondary setting parameters such
as sense mode, phase mode and ALC mode to be changed.
MEASUREMENTS
The MEASUREMENT screen is not a menu in that no user entries
are required. It displays read-back data.
TRANSIENTS
The TRANSIENTS menu allows output transients to be
programmed.
REGISTERS
The SETUP REGISTERS menu allows complete instrument
settings and transient list programs to be saved to nonvolatile
memory.
CONFIGURATION
The CONFIGURATION menu allows changes to be made to
configuration settings such as the IEEE-488 address, USB or LAN,
power on state and Master/Auxiliary control mode.
OUTPUT CAL
The OUTPUT CAL menu provides access to the LCD viewing
angle and Calibration password entry. If the correct calibration
password is entered, additional calibration screens can be
accessed.
MEAS CAL
The MEAS CAL menu allows for calibration of the AC source
measurement system.
APPLICATIONS
The APPLICATIONS menu provides access to the optional
firmware application programs that may be installed in the power
source controller.
OPTIONS
The OPTIONS menu provides access to optional functions that
may be present on the power source.
ETIME/TEMP
The ETIME/TEMP screen displays the Elapsed time (Time the unit
has been in operation) in hours, minutes and seconds. It also
displays the internal temperature of the unit in degrees Celsius.
LIMITS
The LIMITS screen displays the hardware configuration limits of
the AC power source. It is for display purposes only and the user
can change none of these fields.
4.2.2 Top Level Menus
The following top-level menu choices can be accessed using the Menu key:
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i/iX Series
Menu Structure
LEVEL 1
LEVEL 2
LEVEL 1
LEVEL 2
PROGRAM
VOLT 120.0V
REGISTERS
SAVE REG #
CONTROL
FREQ 400.0HZ
CONFIGURATION
RECALL REG #
VRANGE 150.0V
ADDRESS 1
PHASE 0.0°
BAUD RATE 460800
FUNC >SINUSOID
PON STATE RST
CLIP THD 10.0
CONTROL MAST
VOLT MODE AC
LANGUAGE SCPI
DC OFFSET N/A
SYSTEM 1501iX
CURR 13.00A
(FW 0.25
LANetwork <
OL MODE CV
or higher)
SENSE INT
-LAN option only
IP Address NC
SYNC INT
100.10.1.87
CLOCK INT
MAC Address
MODE STAN
0:20:4A:9A:02:FD
ALC STATE ON
GWAddress NC
VOLT REF INT
100.10.1.1
# OUTPUTS THR
HostBits 8 NC<
ST PHASE RAND
Port No 5025
MEASUREMENT
100.00V 2.349A
OUTP CAL
VIEW ANGLE -5
TRANSIENT
400.0HZ 234.9W
MEAS CAL
CAL PWORD 100
238.7VA 1.00pF
VOLT FS 2654
2.349A 0.98cF
PHASE OFST 0.0
0.18%A 10.559A
MVOLT FS 4000
0.19%V 0.0°
MCURR FS 5600
TRAN ST IDLE
COUNT 10
APPLICATIONS
MIL704
OPTIONS
DO160
TRIG SOUR IMM
TRAN STEP AUTO
MS704
WHM
4.2.3 Menu Tree
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VOLT #12 120.0
LANGUAGE ON
VSLEW #12 1e+06
ADVANCE ON
FREQ #12 400.0
MODE N/A
FSLEW #12 10.00
CLOCK/LOC N/A
DWELL #12 10.00
MIL704 N/A
TTLT #12 ON
DO160 N/A
FUNC #12 0
MS704 N/A
PHASE#12 0.0
ABD N/A
CURR #12 11.00
WHM N/A
MB N/A
Power on
ETIME/TEMP
ETIME 21:20:03
Screens
LIMITS
TEMP 25:33°C
#1
Initialization
in progress
LIM LVOLT 150.0
HVOLT 300.0
#1
CAL. INST.
CIC918-1,Rev0.25
LIM LFREQ 16.00
HFREQ 1000
#2
MODEL 1501iX
SERIAL #54321
CURR 10.00
PHASE(C) 0.0 #3
Memory test
passed
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ENTRY
DESCRIPTION
VOLTAGE
Programs the output voltage in Vrms. The voltage can be
changed from 0 to its max range value as determined by the
configuration settings and the selected voltage range using the
keypad + Enter or the shuttle (if the voltage field is selected).
FREQ
Programs the output frequency. The frequency can be changed
from its min to its max value as determined by the configuration
settings using the keypad + Enter or the shuttle (if the frequency
field is selected).
VRANGE
Selects 150V or 300V voltage range (if available). The actual
range values may be different depending on the configuration.
The value of this field can be changed with the shuttle as long as
the active pointer () points to the VRANGE entry. If only one
voltage range is available, this field cannot be changed.
PHASE
Selects the phase angle between the external clock and the
output of the AC source. If the clock source is internal, this
parameter has no effect.
FUNC
Selects the waveform for the selected phase. On 751iX/1501iX
models, available choices are SINUSOID, SQUARE and
CLIPPED or any user defined waveform that was downloaded to
the AC source waveform memory using the IEEE-488, LAN or
USB interface.
This field is fixed to SINUSOID on 751i/1501i models.
CLIP LEVEL
Sets the clip level for the CLIPPED sine wave in percent VTHD.
The range is 0 to 20 %. (751iX/1501iX models only).
Note: Changing the clip level setting will result in temporary loss
of the output voltage as the new clipped waveform is loaded.
This may cause the EUT to reset or turn off. To avoid this, set
the desired clip level before programming the AC voltage and
turning on the output to the EUT or use the transient list system
4.2.4 PROGRAM Menu
Figure 4-5: PROGRAM Menu
The PROGRAM menu is shown in Figure 4-5. It can be reached in one of two ways:
1. By selecting the MENU key, selecting the PROGRAM entry and pressing the Enter key.
2. By pressing the SET key.
The PROGRAM menu is used to change primary output parameters. Less frequently used parameters
are located in the CONTROL menu.
The following choices are available in the PROGRAM menus:
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DESCRIPTION
to switch between waveforms.
VOLT MODE
Selects the available output modes of operation. Available
modes are AC, DC (i/iX models) and ACDC (iX models only).
The shuttle can be used to select the desired output mode.
DC OFFSET
This parameter applies only when the power source is in ACDC
mode. The DC offset can only be set in percent of the AC RMS
voltage programmed. (Relative programming only). The
available dc offset range is ±20%.
Note: Changing the offset percentage setting will result in
temporary loss of the output voltage as the new offset is
recalculated and loaded. This may cause the EUT to reset or
turn off. To avoid this, set the desired offset percentage before
programming the AC voltage and turning on the output to the
EUT.
CURR
Sets the current limit value for the current detection system.
When the load current value exceeds the set current limit, a fault
condition is generated. The actual response of the AC Source to
a current limit fault is determined by the protection mode
selected in the OL MODE field. (CC = Constant Current, CV =
Constant Voltage).
OL MODE
Sets the current limit overload mode. The actual response of the
AC Source to a current limit fault is determined by this setting.
Available settings are CC for Constant Current mode or CV for
Constant Voltage mode. In CV mode, the AC source output will
trip off and stay off until re-engaged. In CC mode, the voltage will
be reduced until the current limit is no longer exceeded.
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DESCRIPTION
SENSE
Selects internal or external (remote) voltage sense mode. If INT is
selected, the voltage is sensed at the output terminal block. If EXT is
selected, the voltage is sensed at the external sense connector. If
external sense is selected, care must be taken to connect the
external sense lines at the load. For sense leads longer than 1
meter, twisted pairs should be used.
SYNC
Selects the external sync mode if available. Default is internal sync,
which means a free running time base. The time base can be
synchronized to an external sync signal depending on installed
options (-EXS option).
CLOCK
Selects internal or external clock source. The i/iX Series controller
uses an open-air crystal time base with an accuracy of 100 ppm. The
external clock mode is used to support the –LKS option. For use as
an auxiliary unit in a clock and lock system, this field must be set to
EXT. A unit with –LKS option can be used stand-alone if needed by
setting the INT clock mode.
The same EXT setting is required to use the –RPF (remote
programming frequency) analog input for frequency programming if
the –RPF option is installed.
INT
Default, internal clock.
EXT
Auxiliary unit (-LKS) driven by master (-LKM) clock
input.
Note: When selecting EXT mode, make sure the
Clock and Lock BNC cables are connected to the
Master (-LKM) unit. If not, there will be no output on
the –LKS unit. See section 3.10 for connection
information.
MODE
Power on clock mode. The following two modes can be selected.
4.2.5 CONTROL Menus
Figure 4-6: CONTROL Menus
The CONTROL menu is shown in Figure 4-6 and can be reached by selecting the Menu key, selecting
the CONTROL entry using the DOWN cursor key and then pressing the Enter key.
The CONTROL menu is used to change secondary output parameters. The following choices are
available in the CONTROL menus:
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DESCRIPTION
STAN
Power up in INT (internal) clock mode for standalone operation. This is the only mode for models
without the –LKS option.
For units with the –LKM option installed, this field is
fixed to CLK/LOCK.
For units with the –LKS option installed, this field can
be changed to CLK/LOCK for use as an auxiliary
unit in a clock and lock system or to STAND for use
as a stand alone unit.
CLK/LOCK
Fixed on master (-LKM) unit configuration in a clock
and lock system. Power up with EXT (external) clock
mode on unit with –LKS option. (See OPTION menu
section.).
Note that this field cannot be changed if the –LKM
option is installed.
The frequency resolution below 81.9 Hz in MAST
clock and lock mode is reduced to 0.1 Hz from the
normal 0.01 Hz.
ALC STATE
Sets the Auto Level Control (ALC) mode. This mode uses the
internal measurement system to zero regulate the output. There are
three modes of operation:
OFF No measurement based output regulation.
REG Output regulation is enabled. AC source will continuously
regulate output but will not trip off output.
ON Output regulation is enabled and output will fault (trip off)
with Error 801 “Output Voltage fault” if regulation cannot be
maintained and the programmed output voltage is 10Vrms or
higher. No error is generated for settings below 10 volt.
In most situations, the ALC mode should be set to REG or ON for
optimal performance.
Note: The ALC mode only functions for programmed output voltages
above 10 Vrms. The ALC REG mode only functions for programmed
output voltages above 5 Vrms.
VOLT REF
Selects internal or external voltage programming. Select INT for
programming of voltage from the front panel or over the bus. Select
EXT to use the RPV (remote programming voltage). The RPV input
expects a 0-10 Vdc signal for 0 to full-scale voltage. The –RPV
option must be installed for this mode of operation.
# OUTPUTS
Selects SINGLE or THREE phase mode of operation. The 751/1501
i/iX models operate only in single-phase mode so this field will
always show N/A (not applicable).
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ENTRY
DESCRIPTION
ST PHASE
Selects the start phase angle for output changes made to either
voltage or frequency. This allows changing the output at a specific
phase angle. The ON/OFF key also uses this phase angle setting to
program the output voltage up to the set level after the output relay is
closed. The default value for this field is RAND. To set the start
phase angle, set the cursor to the ST PHASE field and use either
shuttle knob to adjust between ± 360°. To set to RAND, use the
BACK key.
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ENTRY
DESCRIPTION
MEASUREMENTS 1
VOLTAGE
This value is the true rms output voltage measured at the voltage
sense lines.
CURRENT
This value is the true rms output current drawn by the load.
FREQ
The output frequency is measured at the sense lines.
TRUE POWER
This value is the real power.
MEASUREMENTS 2
VA POWER
This value is the apparent power.
POWER FACTOR
This readout shows the power factor of the load.
PEAK CURRENT
This value is the instantaneous peak current. See also PEAK CURR
in MEASUREMENTS 3 screen.
CREST FACTOR
This readout displays the ratio between peak current and rms
current.
MEASUREMENTS 3 (iX Models only)
CURR THD
This readout displays the total current distortion for the selected
phase. The distortion calculation is based on the H2 through H50
with the RMS current in the denominator. Note that some definitions
of THD use the fundamental component (H1) of the current as the
denominator.
If desired, the user can program the power source controller to use
4.2.6 MEASUREMENTS Screens
The i/iX Series uses a DSP based data acquisition system to provide extensive information regarding
the output of the Source. This data acquisition system digitizes the voltage and current waveforms and
calculates several parameters from this digitized data. The results of these calculations are displayed
in a series of measurement data screens. A total of three measurement screens are used to display all
this information.
Figure 4-7: MEASUREMENT Screen
The Measurement screens available on the iX Series are not menus in that no changes can be made
anywhere. Instead, these screens provide load parameter readouts. The measurement screens can be
reached by successively pressing the Meas key, which will toggle to all available screens. Note that for
i Series models, only the first two screens are available. For the iX series, all three measurement
screens are available.
The following parameters are available in the measurement screens:
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ENTRY
DESCRIPTION
the fundamental component as the denominator. This mode can only
be programmed over the bus by sending the “MEAS:THD:MODE
FUND” command. At power up or after a reset command, the mode
will revert back to RMS.
PEAK CURR
This readout reflects the highest peak current value detected at the
output. This is a track and hold peak current measurement. To
measure inrush current for a unit under test, open the output relay
and reset the peak current value using the BACK key. Then program
the output voltage and frequency and turn on the output relay. The
peak current measurement will continuously track the maximum
current value detected until reset. See also PEAK CURRENT in
MEASUREMENTS 2 screen.
VOLT THD
This readout displays the total voltage distortion for the selected
phase. The distortion calculation is based on the H2 through H50
with the RMS voltage in the denominator. Note that some definitions
of THD use the fundamental component (H1) of the voltage as the
denominator.
If desired, the user can program the power source controller to use
the fundamental component as the denominator. This mode can only
be programmed over the bus by sending the “MEAS:THD:MODE
FUND” command. At power up or after a reset command, the mode
will revert back to RMS.
PHASE
Relative voltage phase angle measurement with respect to phase A.
This readout is only relevant if an external clock source is used.
Update Program Functions from Measurement Screen
The Shuttle knob can be used to update voltage and/or frequency settings while the measurement
readout screen is displayed. To do so, select the desired parameter to be change while in the SET
screen using the left arrow cursor. Then, select the measurement screen by pressing the MEAS
button. While the measurement screen is visible, the shuttle continues to operate.
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ENTRY
DESCRIPTION
TRAN ST
Indicates the status of the transient system. Available modes
of operation are:
IDLE
Transient system is in IDLE or inactive state. To
start a transient list, press the ENTER key while
on the TRAN STATE field. Note that the output
must be ON to run a transient program or an
error message will be displayed.
WTRIG
Transient system is armed and waiting for a
trigger event.
BUSY
Transient system is active. A transient list
execution is in progress.
COUNT
Sets the execution count for the transient system. A count of 1
indicates the transient will run 1 time. The count value can be
set with either voltage or current knob while the cursor is on
this field. The count range is from 1 through 2E+08. Values
below 200,000 are displayed in fixed point notation. Value
higher than 200,000 are displayed as a floating point number
4.2.7 TRANSIENT Menu
The transient menu is used to program and execute user-defined output sequences. These output
sequences are defined as a sequential list of voltage and/or current settings that can be executed in a
time controlled manner.
Each step in these lists is assigned a sequence number ranging from #0 through #99. The numbering
determines the order in which each step is executed.
Each step can control the voltage setting, voltage slew rate, frequency setting, frequency slew rate and
dwell time. The dwell time determines how long the output dwells at the current step before
progressing to the next step. Dwell times can range from 1 ms up to 900000 seconds.
Transient lists can be set up from the front panel or over the bus. The transient list can be saved with
the rest of the front panel settings in one of the setup registers. (See Register Menu).
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DESCRIPTION
(2E+05). The display has insufficient characters to display the
entire mantissa so entering values above 2E+05 from the
keyboard is not recommended.
TRIG SOURCE
Indicates the trigger source for transient system. Available
trigger sources are:
IMM
Immediate mode. The transient is started from
the front panel using the ENTER key.
BUS
Bus mode. The transient system is started by a
bus command or a group execute trigger (GET).
EXT
External mode. The transient system is started
by a user-provided external TTL trigger signal on
TRIGGER IN.
TRAN STEP
Indicates the transient system execution mode. Available
modes are:
AUTO
When triggered, the transient system will
automatically execute each list point sequentially
without waiting for a trigger between list points.
This execution is paced by the dwell time set for
each data point.
ONCE
When triggered, the transient system will
execute the first list point and wait for a new
trigger once the dwell time expires. This allows
triggered execution of each step in the transient
list.
List parameters:
VOLT
Step #
Voltage set point
VSLEW
Step #
Voltage slew rate in V/s
FREQ
Step #
Frequency set point
FSLEW
Step #
Frequency slew rate in Hz/s
DWELL
Step #
Dwell time in seconds.
Range is 0.001 to 900000
TTLT
Step #
ON: Generates an output trigger pulse at this
list step.
OFF: No output trigger.
The output trigger is available on the TRIG OUT
on the rear panel. (Aux I/O DB9 connector).
FUNC
Step #
Waveform selection. Available choices are
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DESCRIPTION
Sinusoid, Square, Clipped or any of the user
provided waveforms in waveform memory (iX
models only).
PHASE
Step #
Phase angle set point. (Not relevant for phase A
if clock mode is internal.)
CURR
Step #
Current set point
Transient List point data entry method.
Transient list points are numbered sequentially from 0 through 99 and executed in this order. Each list
point or list entry has 9 parameters as shown in the table above. To enter list point data, the keypad
must be used. The shuttle knob is used to increment or decrement the list point sequence number (#).
The sequence number can only be increased to the next available empty (new) list point.
To move to the next or previous parameter, use the UP () or DOWN () cursor keys
It is not necessary to use all list points, only as many needed to accomplish the desired output
sequence.
Setting Data Values
Data values can be set for each point in a list. If all data values in a specific list are going to be the
same value (e.g. the current limit parameter is set to the same value for the entire transient program),
only the first data value for that parameter has to be set. Setting only the first data point will
automatically repeat that value for all subsequent points in the transient list.
Setting Slew Rates
Very often, output changes must be done as fast as the power source can make them. This means the
transient list slew rate is set to its maximum value. If this is the case for all the data points in the list, it
is sufficient to set just the first data point's slew rate for either voltage and/or current. Setting only the
first point of any parameter in the list will automatically cause all points for that parameter to be set to
the same value. This saves a lot of data entry time.
If however, one or more data points require a specific slew rate such as needed to do a ramp, all other
points have to be specifically set to their required slew rates, including the maximum slew rate.
Saving Transient Lists
Once completed, a transient sequence can be saved along with the steady state setup of the
instrument by using the REGISTER, SAVE menu. Registers that may be used for this purpose are 1
through 15. It is advisable to do so, especially for longer transient lists.
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DESCRIPTION
SAVE
REG 0 – 15
Saves the selected setup and transient list
from memory. (Setup only for Reg 0) The
shuttle knob may be used to scroll through the
available list of setup register numbers.
Use the ENTER key to perform the save
operation.
Register 0 can be assigned as the power-on
state setup from the CONFIGURATION menu.
A valid setup must be saved in REG0 to do so.
Note that REG0 only saves the setup, not the
transient list. All other registers also save the
transient list.
RECALL
REG 0 – 15
Recalls the selected setup and transient list to
memory. (Setup only for Reg 0) The shuttle
knob may be used to scroll through the
available list of setup register numbers.
Use the ENTER key to perform the recall
operation.
Register 0 can be assigned as the power-on
state setup from the CONFIGURATION menu.
A valid setup must be saved in REG0 to do so.
Note that REG0 only saves the setup, not the
transient list. All other registers also save the
transient list.
4.2.8 REGISTERS Menu
The registers menu provides access to the non-voltage setup storage of the power source. A total of 8
front panel setups can be stored in registers numbered from 0 through 15. Each register except
register 0 can hold the complete front panel setup, including the programmed transient list. This allows
for quick recall of different setups and transient programs.
Register 0 is reserved to be used as the power-on setting as assigned by the user. To have the power
source start in a specific setting, save the desired setting to Register 0 and assign register zero as the
power-on default in the CONFIGURATION menu. Alternatively, the power source can be set to power
up with the RST factory default settings. See 4.9 for factory default settings.
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ADDRESS
0 - 31
Sets the selected IEEE / GPIB bus address for
the optional IEEE/GPIB interface.
Factory default is address 1. The shuttle knob
or the keypad can be used to set a value from
0 through 31. Do not use address 0 as this
address is typically reserved for the GPIB
controller.
BAUD RATE
9600
19200
38400
57600
115200
230400
460800
Sets the baud rate for the USB and/or LAN
(Ethernet) communications port. Factory
default is 460800 baud. Available settings are
38400 through 460800 baud.
Note: For USB and LAN use, you must set the
baud rate to 460800. The shuttle knob can be
used to scroll through these selections.
PON STATE
REG0
RST
Determined power on state. This setting
selects either non-volatile REG0 to be recalled
automatically at power-on or factory default
(RST). Factory default is RST, which recalls
the factory settings.
Note that to use REG0 for power-on default,
the contents of the register must be
programmed first. See section 4.2.8. If an
empty register is selected, the power source
will revert back to RST (factory setting).
CONTROL
MAST
AUX
This is an information-only field that displays
the controller operation mode. For a single
stand-alone iX unit, the mode is always MAST
(Master).
Alternatively, the auxiliary mode may be
detected if the system interface cable at the
rear panel is plugged in and connected to
another i/iX unit. In AUX mode, the AC source
is controlled by another unit (Master unit). The
controller will be disabled and has no control
over the amplifiers, the measurements or any
other function. A message will be displayed at
4.2.9 CONFIGURATION Menu
The configuration menu may be used to configure various aspects of the instrument such as the serial
port, IEEE-488/GPIB address and the power-on settings of the supply.
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DESCRIPTION
power indicating it is in Auxiliary mode. You
can press any key to get in the menus but no
control is possible.
LANGUAGE
SCPI
ABLE
Displays the active programming command
language syntax selection. Default for
compact i/iX series is SCPI (Standard
commands for Programamble Instruments). If
the –ABL option is installed, the ABLE (Atlas
Based Language Extension) syntax can be
selected. See programming manual for details
on use either syntax.
SYSTEM
1501iX
This field is not user controlled. It merely
indicates the configuration of the power
system.
If the multi-box option (-MB) is installed, this
field can be changed between 750, 1500 or
3000. Set this field to the correct power level
for the configured system using the shuttle:
Unit(s) Setting
751i/iX 751i / 751iX
1501i/iX 1501i / 1501iX
2 x 751i/iX 1501i / 1501iX
2 x 1501i/iX 3001i / 3001iX
To reconfigure an existing system on which
the MB option was not configured, contact
AMETEK Programmable Power customer
support (support@programmablepower.com).
LANetwork
LAN
If the –LAN option is installed; pressing Enter
while the cursor is on the LANetwork entry
provides access to the LAN interface setting
screens listed below.
Note: These screens require firmware 0.25 or higher. To
update older firmware revisions, contact AMETEK
Programmable Power customer support
(support@programmablepower.com) or check CI website.
IP Address
Displays the IP address setting. This value can
be changed by pressing the SET key and
entering a new value from the keypad. Use the
numeric data pad to enter each field. To move
between the four fields, use the decimal point
key on the keypad.
To set a fixed IP address, press SET and
enter the desired IP address. To set the unit to
DHCP mode, press SET and enter all zeros
(0.0.0.0) as the IP address and cycle power
two times. The obtained IP address will be
displayed after the second power on. For the
DHCP setting to work however, the unit MUST
be connected to a network with a DHCP
server.
Any change to this value will NOT take effect
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ENTRY
DESCRIPTION
until after power on the unit has been cycled.
When changing mode from static IP to DHCP,
it is necessary to cycle power on the unit twice,
once to change mode and again to obtain and
display a new IP address from the network.
MAC Address
Displays the network Media Acces Control
address. This value is fixed and cannot be
changed. The same MAC is normally printed
on the model serial tag. The MAC address is
shown as six hexadecimal numbers separated
by a colon, e.g. 00:20:4A:9A:02:FD. Note that
the leading ‘0’ is never visible due to the
maximum number of LCD characters per line.
Note: If the MAC Address displayed is corrupted
or does not match the serial tag, there may have
been a problem retrieving the LAN port settings.
To recover, turn on power to the unit while
holding down the SET key. This will allow the
unit to boot without attempting to collect the IP
settings. You can then set the required IP
values. [See IP Address above].
GWAddress
Gateway address setting. A default gateway
is a node (a router) on a computer network
that serves as an access point to another
network.
This value can be changed by pressing the
SET key and entering a new value from the
keypad. Use the numeric data pad to enter
each field. To move between the four fields,
use the decimal point key on the keypad.
Any change to this value will NOT take effect
until after power on the unit has been cycled.
HostBits
Number of host bits as opposed to network
bits in network mask. A CIDR class C network
uses 24 network bits and 8 host bits. (Class A
= 24, Class B = 16).
This value can be changed by pressing the
SET key and entering a new value from the
keypad. Any change to this value will NOT
take effect until after power on the unit has
been cycled.
Port No
TCP remote port number. This value must be
set to 5025 (SCPI) to support the built in web
page.
This value can be changed by pressing the
SET key and entering a new value from the
keypad. Any change to this value will NOT
take effect until after power on the unit has
been cycled.
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ENTRY
DESCRIPTION
LAN Default
LAN default setting can be achieve by
selecting the Mac address screen and press
the set key followed by the Enter key. Press
the Enter key again to confirm. The IP address
is set to DHCP or AUTO IP.
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ENTRY
DESCRIPTION
VIEW ANGLE
-10 to +10
LCD viewing angle adjustment.
CAL PWORD
V range
Calibration password required to access all
calibration screens. The calibration password
is the high voltage range value. [300 ] The
password can be entered using the keypad or
shuttle followed by the ENTER key.
Measurement Calibration Screens
MVOLT FS
± 9999
Calibration coefficient for full-scale voltage
measurement.
MCURR FS
± 9999
Calibration coefficient for full-scale current
measurement.
Output Calibration Screens
VOLT FS
± 9999
Calibration coefficient for voltage output.
PHASE OFST
0.0 - 360.0
Phase offset calibration for units equipped with
the –LKS option. Determines phase offset
from –LKM master clock.
4.2.10 CALIBRATION Menus
The measurement calibration menu can be used to perform routine calibration of the internal
measurement system. The recommended calibration interval is 12 months. To enter the calibration
screens, the calibration password must be entered first.
Note: Refer to chapter 6 for details on routine calibration procedures and equipment requirements. Do
not attempt calibration without consulting the user manual.
This menu also contains the LCD viewing angle adjustment.
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4.2.11 APPLICATIONS Menu
Note that some of the application options listed in this section may not be available on all i/iX models
and may not be configured. In this case, these fields in these menus will display “N/A” (not applicable)
and no access to these menus will be available.
The Applications menu provides access to application specific firmware functions if available. Note that
there may be no applications installed in which case this screen will still be shown but has no function.
Possible applications are DO160 and MIL704. To access either of the application screens, position the
cursor on the APPLICATIONS entry and press the ENTER key. Select the desired application and
press ENTER.
4.2.12 OPTIONS Menu
The Options menu provides access to available optional features. Note that there may be no options
installed in which case this screen will still be shown but has no function. The option settings are
protected and cannot be changed by the user. These screens are provided for information purposes
only.
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ENTRY
DESCRIPTION
LANGUAGE
ON
If –ABL option is installed, this field will
indicate ON.
N/A
Default is N/A. All Compact i/iX support SCPI
syntax standard.
ADVANCE
ON
Standard on all iX Series models.
N/A
This feature is not available on i Series
models. N/A is shown.
CLOCK/LOC
N/A
Clock and lock is an option. If no –LKM option
is installed, this field will show N/A.
MAST
-LKM Option installed. The unit can be used
as a Clock and Lock system master or standalone.
AUX
-LKS option installed. The unit can be used as
a Clock and Lock system auxiliary or standalone.
MIL704
ON or N/A
Mil-Std 704 Rev D,E test option.
(Rev A,B,C and F provided through iXGui Windows
software.)
DO160
ON or N/A
RTCA-DO160 Rev D test option.
MS704
ON or N/A
N/A
ABD
ON or N/A
Airbus ABD0100.1.8 test option.
WHM
ON or N/A
Watt Hour Meter option.
MB
ON or N/A
Multi-box option.
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ENTRY
DESCRIPTION
ETIME
01:23:45
The ETIME field displays the total
accumulated elapsed time for the instrument
since it's initial manufacture. This value cannot
be changed or reset.
TEMP
37.342°
The TEMP field is not a user selectable
parameter but rather a read-out of the internal
temperature in degrees Celsius. It is provided
for informational purposes only.
4.2.13 Elapsed Time and Temperature Screen
The Etime/Temp screen displays the elapsed time since the power source has first been turned on.
This is an accumulated total time in hours, minutes and seconds.
The same screen also displays the internal temperature of the power supply.
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ENTRY
DESCRIPTION
LIM LVOLT
Low Voltage
Range
Displays maximum available output voltage in
the low voltage range.
LIM HVOLT
High Voltage
Range
Displays maximum available output voltage in
the high voltage range.
LIM LFREQ
Low Frequency
Limit
Displays minimum available output frequency.
LIM HFREQ
High Frequency
Limit
Displays maximum available output frequency
CURR
C range
Displays maximum available current in low
voltage range at full-scale voltage.
PHASE (C)
Phase Setting
Displays phase angle for phase C. Valid values
are 120 for three-phase or mode configuration,
0 for single-phase only configuration. Any other
value indicates split (2) phase configuration.
4.2.14 LIMIT Menu
The Limit menu displays the maximum available value for voltage, frequency and current range of the
power supply. This screen is used for information only and contains no user changeable fields. The
limit values shown cannot be changed.
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4.3 Output Programming
4.3.1 Set the Output
Output parameters are all set from the PROGRAM screen.
1. Use the MENU key and select the PROGRAM entry.
2. Press the ENTER key to bring up the PROGRAM menu.
or
2. Use the SET key to directly bring up the PROGRAM menu.
There are two methods for programming output parameters:
IMMEDIATE mode
SET mode
4.3.2 Slewing Output Values in IMMEDIATE Mode
The default mode of operation is an immediate mode in which changes to output parameters made
with the knob or the entry keypad are immediately reflected at the output.
To change the output voltage:
1. Place the cursor on the VOLT entry
2. Rotate the shuttle knob clockwise to increase the value, counterclockwise to decrease the value or
use the Keypad to enter a value and press the Enter key.
These changes take effect immediately.
To change the output frequency:
1. Place the cursor on the FREQ entry
2. Rotate the shuttle knob clockwise to increase the value, counterclockwise to decrease the value or
use the keypad to enter a value and press the Enter key.
These changes take effect immediately.
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4.3.3 Change Output Values in SET Mode
The SET mode of operation is a mode in which changes to output parameters made with the knob or
the entry keypad do not affect the output until the Enter key is pressed. The AC source is put in this
SET mode by pressing the Set key twice. A blinking cursor indicates SET mode is active.
To change the output voltage:
1. Press the Set key twice
2. Place the cursor on the VOLT entry
3. Rotate the shuttle knob clockwise to increase the value, counterclockwise to decrease the value or
enter a new value using the keypad but do not press the Enter key yet.
4. A blinking underline cursor will appear in the data for the VOLT field to indicate a change in
settings but the output remains unchanged.
5. Place the cursor on the FREQ entry using the down arrow key.
6. Rotate the shuttle knob clockwise to increase the value, counterclockwise to decrease the value or
enter a new value using the keypad but do not press the Enter key yet.
7. A blinking underline cursor will appear in the data for the FREQ field to indicate a change in
settings but the output remains unchanged.
8. Press the Enter key.
Both new voltage and frequency output values are now present at the output. The unit has returned to
immediate mode of operation until the SET key is pressed again.
Note that output settings such as voltage and frequency can be changed from the measurement
screen as well. If all three phases are selected on three phase models, slewing the shuttle knob will
change the output voltage on all three phases. If only one phase is selected, only the output of the
selected phase will be affected.
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4.4 Waveform Management
The iX Series employs independent arbitrary waveform generators for each phase. This allows the
user to create custom waveforms. In addition, three standard waveforms are always available. This
chapter covers issues that relate to defining, downloading and managing custom waveforms.
Note: i Series models do not support arbitrary waveform generation.
4.4.1 Standard Waveforms
For most AC applications, a sinusoidal wave shape is used. The sine wave is the standard waveform
provided on all i and iX Series models. This standard sine wave is always available and is the default
waveform at power-on unless overridden. On iX model power sources, two more standard waveforms
are available, square and clipped.
Figure 4-8: Selecting a Waveform
The square wave provides a high frequency content waveform with relative fast rise and fall times. Due
to AC amplifier bandwidth limitations, the frequency content of the standard square wave has been
kept within the amplifier’s capabilities. As the fundamental frequency is increased, the relative
contribution of higher harmonics is reduced.
The clipped sine wave may be used to simulate voltage distortion levels to the unit under test. The total
harmonic distortion level may be programmed in percent using the CLIP THD field directly below the
FUNC entry.
Note that changing the distortion level of the clipped waveform forces the AC source to regenerate the
clipped sine wave’s data points and reload the waveform register with the newly requested data. This
process requires the output to be dropped briefly. To avoid interrupting the voltage output to the unit
under test, set the clip level needed before closing the output relay and do not change it while the EUT
is under power. You can then toggle between the clipped sine wave and any other waveform in
memory without interrupting the output.
4.4.2 Creating Custom Waveforms
The iX controller supports up to 50 user defined waveforms in addition to the 3 standard waveforms.
Custom waveforms cannot be created from the front panel of the iX Series. Rather, they have to be
downloaded through the IEEE-488, LAN or USB interface.
Each waveform is defined by 1024 data points. Each data point can range between –1 and +1 (floating
point number). See iX Series programming Manual (P/N 6005-961) for details on downloading
waveforms.
Once downloaded, waveforms remain in non-volatile memory and will be visible in the WAVEFORMS
menu for selection. The user can assign a 12-character name to each custom waveform. Avoid using
any of the standard waveform names (SINUSOID, SQUARE or CLIPPED) as these names will not be
accepted.
Waveforms may be deleted using the IEEE-488, LAN or USB interface as well. Custom waveforms
cannot be deleted from the front panel however to avoid accidental erasure.
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4.4.3 RMS Amplitude Restrictions
The output of a sine wave may be programmed to the full rms value of the voltage range selected. If
the AC source is in the 300 V range, the maximum programmable rms voltage is 300 Volt. If a custom
waveform is used however, the maximum programmable rms voltage may be less than the maximum
range value. The voltage range limit is based on the use of a sine wave with a 1.414 crest factor. A 300
V rms sine wave has a 424 Volt peak voltage. The AC source has a maximum peak voltage capability
that is determined by the selected voltage range. If the user selects a custom waveform with a crest
factor that is higher than 1.414, the peak voltage would exceed this maximum if the rms voltage were
to be programmed at 300 V rms.
The iX Series power source automatically limits the maximum allowable programmed rms voltage of
any custom waveform by calculating the crest factor of the selected waveform and controlling the rms
limit accordingly. Thus, each custom waveform may have a different maximum rms value. The
controller will prevent the user from programming the rms voltage above this limit. If a value is entered
in the PROGRAM menu above this value, a “Voltage peak error” message is generated.
Figure 4-9: Waveform Crest Factor Affects Max. rms Voltage
The figure shown here illustrates the relationship between the crest factor of the wave shape (or its
“peakiness”) and the maximum peak voltage allowed for a given voltage range. Since the peak voltage
cannot exceed the AC source’s capabilities, the programmable rms voltage has to be restricted, in this
case to only 167.8785 volt for the waveform on the left. The sine wave on the right can be programmed
to the full 300 V rms as this still falls within the same peak voltage limitation of the AC source.
If the iX Series is used over the bus, the “:VOLT? MAX” query command can be used to determine the
maximum allowable RMS voltage for the selected waveform. Using the returned value as part of a
program will prevent range errors.
4.4.4 Frequency Response Restrictions
The user may create a waveform that contains any number of harmonic frequencies of the
fundamental. The AC Source itself however has a finite signal bandwidth and will attenuate higher
frequency components of the signal. To limit the maximum frequency component of the output signal,
the controller automatically applies a band-pass filter to all custom waveforms as they are downloaded.
The controller implements the following process for user-defined waveforms:
Each downloaded waveform will have a computed frequency limit that is less than or equal the
maximum frequency limit of the AC source. The frequency limit is a function of the harmonics content
of the waveform and will follow the equation below.
Fmaxh = Fmax/(level * hn)
Where:
Fmaxh is the maximum allowable fundamental frequency that can be programmed
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Fmax is the upper frequency limit of the power source
Level is the percentage of the harmonic with respect to the fundamental expressed as a
fraction (e.g. 10% = 0.1)
hn is the harmonic number, e.g h11 is the 11th harmonic or hn = 11.
This value Fmaxh is evaluated for all the harmonic components in the downloaded waveform and the
lowest result is assigned as the computed upper fundamental frequency limit that may be used with
this specific waveform.
If Fmaxh is below the minimum frequency limit, the waveform will be rejected at down load time and
the label will be deleted from the waveform catalogue.
If the iX Series is used over the bus, the “:FREQ? MAX” query command can be used to determine the
maximum allowable fundamental frequency for the selected waveform. Using the returned value as
part of a program will prevent range errors.
Limits assume a program of full-scale voltage. No adjustments for voltage setting are made below the
full-scale value.
Waveform selection and frequency programming will be subject to the above limit. An error message
will be generated to reflect this type of error:
"22,Waveform harmonics limit"
Transient editing will also generate the above error during keyboard entry. Remote transient entry will
not check for the error until transient execution.
4.4.5 Switching Waveforms
Waveforms can be switched as part of the transient system. Each transient type setup menu has a
FUNC field. This field allows selection of any of the standard or custom waveforms available in
waveform memory. Refer to the section on transients for more details on using transient list to switch
output waveforms.
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Parameter
MEASUREMENTS 1
VOLTAGE
AC rms voltage
CURRENT
AC rms current
FREQUENCY
Frequency
POWER
Real power
MEASUREMENTS 2
VA POWER
Apparent power
VAR POWER
Reactive power
POWER FACT
Power factor
CREST FACT
Crest factor
MEASUREMENTS 3
VOLT THD
Voltage distortion
CURR THD
Current distortion
PEAK CURR
Highest AC current found
PHASE
Phase angle (relative to phase A)
4.5 Measurements
Standard measurements are always available through the Meas key on the front panel. These
measurements are spread across multiple screens to enhance readability. Switching between these
screens can be done by successively pressing the Meas button on the front panel. This will cause the
screen to cycle through all available measurement screens.
4.5.1 Basic Measurements
The following three measurement screens are available:
Note: The V and I distortion calculations are based on H2 through H50 with the fundamental
component (H1) in the denominator. A RMS referenced calculation may be selected by sending the
“MEAS:THD:MODE FUND” command over the USB or GPIB interface. See i/iX Series programming
manual (CI P/N 6005-961) for details.
Measurements are always running in the background. When the user selects a measurement screen
for display, the power source first updates all the measurement parameters before displaying the
requested screen. Consequently, pressing the MEAS key may not always bring up the selected screen
immediately. There will be a perceptible delay. This will prevent the screen from appearing with invalid
or blank readouts.
Note that in AC mode, all measurements are AC coupled only so any DC offset will not be reported.
4.5.2 Accuracy Considerations
Any measurement system has a finite accuracy specification. Measurement specifications are listed in
Section 2. When using the AC source for measurement purposes, always consider these
specifications when interpreting results. Measurement inaccuracies become more pronounced as the
signal being measured is at the low end of the measurement range. This is particularly relevant for low
current measurements. The iX Series is optimized for providing and measuring load currents up to 15
Arms. When powering very low power loads, measurement inaccuracies on rms and peak current
measurements will greatly affect derived measurements such as power, power factor and crest factor.
The measurement system on the i/iX Series uses a digital data acquisition system with a 96 KS/s
sampling rate and 48 KHz bandwidth. This means that higher frequency components of the measured
signal are filtered out. Any contribution to the rms value of voltage and current above this cutoff
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frequency will not be reflected in the i/iX Series measurements. When using an external measurement
reference, this may account for discrepancies in readings.
4.6 Harmonic Analysis
The iX Series model controller offers advanced power analyzer measurement capabilities. These
functions may be accessed from the Meas screen.
The iX controller’s power analyzer performs fast Fourier transformation (FFT) on both voltage and
current on each available phase. The resulting frequency spectrum can be obtained over the bus only.
Note: The i Series does not support this capability.
4.7 Transient Programming
4.7.1 Introduction
Transient programming provides a precise timing control over output voltage and frequency changes.
This mode of operation can be used to test a product for susceptibility to common AC line conditions
such as surges, sags, brownouts and spikes. By combining transient programming with custom
waveforms, virtually any AC condition can be simulated on the output of the AC source.
The default voltage mode is FIXED which means the output voltage is constant and remains at the
level set by the user. Changes made to the output voltage made from the PROGRAM menu take effect
immediately. In front panel operation mode, the voltage and frequency slew rates (rate of change) are
always at their maximum of 9.9E37 V/s and 9.9E37 Hz/s. Slew rate programming is only possible over
the IEEE-488, LAN, RS232 or USB bus. On power up, the AC source always reverts to the maximum
slew rate for both voltage and frequency. Note that actual output slew rate is limited by amplifier
performance. See supplemental specifications.
4.7.2 Using Transient Modes
The voltage can be programmed in the following transient operating modes:
STEP Causes the output to permanently change to its triggered value.
PULSE Causes the output to change to its triggered value for a specific time, as determined
by the Pulse menu parameters.
LIST Causes the output to sequence through a number of values, as determined by points
entered in the List menu.
FIXED Disables transient operation for the selected function.
4.7.3 Step Transients
Step transients let you specify an alternate or triggered voltage level that the AC source will apply to the
output when it receives a trigger. Because the default transient voltage level is zero volts, you must
first enter a triggered voltage before you can trigger the AC source to change the output amplitude.
Step transients can only be programmed through the bus, not the front panel. Refer to the SCPI
Programming Manual for more information about programming Step transients and triggers.
4.7.4 Pulse Transients
Pulse transients let you program the output to a specified value for a predetermined amount of time. At
the end of the Pulse transient, the output voltage returns to its previous value. Parameters required to
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set up a Pulse transient include the pulse count, pulse period, and pulse duty cycle. An example of a
Pulse transient is shown in Figure 4-10. In this case, the count is 4, the pulse period is 16.6 ms or 60
Hz and the duty cycle is 33%.
Figure 4-10: Pulse Transients
Note that Pulse transients can only be programmed over the bus, not the front panel. Refer to the SCPI
Programming Manual for more information about programming Pulse transients and triggers.
4.7.5 List Transients
List transients provide the most versatile means of controlling the output in a specific manner as they
allow a series of parameters to be programmed in a timed sequence. The following figure shows a
voltage output generated from a list. The output shown represents three different AC voltage pulses
(160 volts for 33 milliseconds, 120 volts for 83 milliseconds, and 80 volts for 150 milliseconds)
separated by 67 millisecond, zero volt intervals.
Transient list programming is supported from the front panel and may be accessed by selecting the
TRANSIENTS screen. Transient lists can also be programmed over the bus. Refer to the SCPI
Programming Manual for more information about programming List transients and triggers over the
bus.
Figure 4-11: List Transients
The list specifies the pulses as three voltage points (point 0, 2, and 4), each with its corresponding
dwell point. The intervals are three zero-voltage points (point 1, 3, and 5) of equal intervals. The count
parameter causes the list to execute twice when started by a single trigger.
4.7.6 Programming list transients from the front panel
The output transient system allows sequences of programmed voltage and or frequency changes to be
executed in a time controlled manner. Changes can be either step changes (maximum slew rate) or
ramps (specified slew rates).
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The section provides some examples of programming output changes (transients). Transients are
defined as a series of numbered steps in a list. The list is executed sequentially. Each step has a
number of fields that can be set by the user:
Voltage, Voltage slew rate, Frequency, Frequency slew rate, Current, Function, Dwell time,
Trigger out.
The voltage, current and frequency settings are the same as one would do from the setup screen using
the shuttle knob or keypad. At each step, the output will be set to the specified voltage, current and/or
frequency. The rate of change for voltage and frequency is determined by the slew rate set. Current
slew is fixed at MAX and cannot be programmed.
If the voltage is changed from 10 Vac to 20 Vac and the V slew is set to 100 V/sec, the voltage will
ramp from 10 to 20 Vac in 100 ms. ( [20 - 10] / 100 = 0.1 sec). The dwell time is the time the output will
remain at this setting. In this example, it should be set long enough to reach the final programmed
value of 20 Vac, e.g. it should be at least 0.1 sec. If not, the voltage will never reach the final value of
20 Vac before the next step in the transient list is executed. The dwell time may be set longer than 0.1
sec in this example. If for example the dwell time is set to 1.0 sec, the voltage will ramp from 10 Vac to
20 Vac over a 0.1 sec period and then remain at 20 Vac for 0.9 sec.
Once the dwell time set for a step in the list expires, the next step is entered (if available, if not,
execution stops and the output remains at the final values set in the last step of the list.)
Note that while there are parameters for both voltage and frequency level and slew rates, there is only
one dwell time, which applies to each step in the transient list.
Front panel entry only supports the LIST mode of operation. For Pulse and Triggered modes, the
remote control interface must be used.
When entering transient lists, each list must be entered sequentially starting with step #0. If a list point
is not yet set, the step number cannot be increased past it.
The following sample illustrates the use of transient system to program controlled output changes.
Figure 4-12: Sample Transient Output Sequence
This output can be accomplished using the following transient list.
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Step #
(data point)
Volt
VSlew
Frequency
FSlew
Dwell
0
70.00
MAX
360.0
MAX
0.100
1
110.00
100.0
440.0
MAX
0.900
2
130.00
MAX
240.0
800.00
0.250
3
90.00
53.3
240.0
MAX
0.750
4
90.00
MAX
460.0
MAX
1.000
5
110.00
MAX
400.0
MAX
0.800
6
88.00
MAX
400.0
MAX
0.200
7
110.00
MAX
400.0
MAX
1.000
Table 4-2: Sample Transient List
4.7.7 Waveforms Function List
The FUNCTION field available in each transient list event setup menu may be used to dynamically
switch waveforms during transient execution. This allows different waveforms to be used during
transient execution. Waveforms may be switched without the output of the source being turned off. For
three phase configurations, each phase has its own waveform list so different waveforms may be
programmed on different phases during transient execution.
Figure 4-13 illustrates the concept of using different waveforms at different steps in a transient list. In
this case, the change was programmed to occur at the zero crossing. Any phase angle can be used to
start the transient execution however. To keep the phase angle synchronization, the dwell times have
to be set to an integer number of periods. Over long periods of time, phase synchronization may get
lost due to timing skew between the waveform generator and the transient state machine.
4.7.8 Transient Execution
A transient list can be executed from the TRANSIENT menu. To start a transient list, position the
cursor on the TRAN ST field as shown in Figure 4-14 and press the ENTER key. Transients may be
aborted by pressing the ENTER key again while on the same field as the field changes to ABORT
while a transient execution is in progress. For short duration transients, this will likely not be visible, as
the transient will complete before the screen is updated. Longer duration transients however may be
aborted in this fashion.
Figure 4-13: Switching Waveforms in a Transient List
Figure 4-14: TRANSIENT Menu
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Parameter
Factory default setting
Voltage
0.0 Volt
Voltage Range
150 Volt Range
Frequency
60 Hz
Current limit
Maximum available current for selected V Range.
Output state
OFF
Local / Remote State
Local. Front panel unlocked.
4.7.9 Saving Transient List Programs
When the AC source is turned off, the transient list that was programmed is not automatically retained.
Thus, if you turn the unit off, you will loose your programmed transient list. However, transient
programs may be saved in nonvolatile memory for later recall. This allows multiple transient list
programs to be recalled quickly without the need to enter all parameters each time. Transient lists are
stored as part of the overall instrument front panel setup in any of the available setup registers.
To save the transient list you created in the previous example, proceed as follows:
1. Press the Menu key repeatedly until the REGISTERS / CONFIGURATION menu is displayed.
2. Move the cursor to the REGISTERS entry and press the ENTER key.
3. The cursor will default to the SAVE REGISTER # position. Enter a number from 1 through 15 and
press the ENTER key. DO NOT USE REGISTER 0 (REG0) as it is reserved for power-on setting
recall and does not include a transient list.
4. A message will appear indicating that the front panel settings and the transient list data have been
saved in the setup register you selected.
4.8 Setting the Power-on Initialization Values
The power source is shipped with default factory settings when the unit is powered up. The factory
settings are:
It is possible to change the power on initialization values in one of two ways:
1. Using the IEEE-488, LAN or USB bus interface.
2. Using the front panel.
To change the power on initialization values from the front panel, proceed as follows:
1. Set the AC power source output parameters from the front panel as you want to power up the
unit.
2. Save this setting to setup register 0 from the REGISTERS menu.
3. Select the CONFIGURATION menu and move to the POWER ON field.
4. Change the POWER ON field to REG0.
5. This will recall the settings contained in register 0 at power up.
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Table 4-3: Factory Default Power on Settings
User Manual Compact i/iX Series
MODE
OPERATION
LATCHING
A TTL low at the RI input latches the output in the
protection shutdown state, which can only be cleared
by an OUTPut:PROTection:CLEar command or by
manually resetting the output.
LIVE
The output state follows the state of the RI input. A TTL
low at the RI input turns the output off; a TTL high turns
the output on. This mode is equivalent to using the
Output On/Off button on the front panel.
Default mode. This mode is active at power up.
OFF
The instrument ignores the RI input.
4.9 Remote Inhibit Function
The remote inhibit input available on the DB9 connector at the rear panel can be used to disable the
output of the AC source. This input takes either a low level TTL signal or a contact closure. The mode
of operation can be programmed over the remote control interface using the OUTP:RI:MODE
command. See 6005-961 programming manual for details.
The following modes are supported.
Table 4-4: Remote Inhibit Modes.
The RI output state is saved as part of an instrument setup using the REGISTERS menu. It can be
made part of the power on setting if needed. The default state is LIVE.
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5. Principle of Operation
5.1 Overall Description
The 751i/iX and 1501i/iX models are share a common architecture based on single 750VA power
amplifier module assembly (P/N 6005-400-1). Power to both amplifier modules is derived from a power
factor corrected bias supply PFC module (P/N 6005-704-1 for Series I or P/N 6005-718-1 for Series II).
For Series I units, the PFC assembly receives AC input power through an AC input transformer which
provides full isolation from the line and also accommodates 115V L-N or 230V L-N ac input selectable
through a voltage selection switch on the rear panel.
For Series II units, a high frequency input stage and switching transformer is used to provide a
universal input voltage range. No voltage selection is required on the Series II models.
The front of the unit houses the digital controller and waveform generator (P/N 6005-703-2 for Series
II) as well as the keyboard display assembly (P/N 6005-702-2). The entire controller front panel
assembly (P/N 6005-403-1) can be removed from the main chassis if needed.
5.2 Amplifier Assembly
The first Amplifier Assembly (P/N 6005-400-1) is located on the right hand side of the chassis. For
1501i/iX models, a second amplifier assembly is installed in the center of the chassis. Both amplifier
assemblies of a 1501i/iX model are identical and their positions can be swapped at will although there
is no reason to do so.
The power module contains two independent direct-coupled half-bridge amplifiers. The half bridges
may be operated independently (in LO RANGE only, 0 to 150 vac) for two-phase operation but this
capability is not used in the 751i/iX and 1501i/iX models where both half bridges are used for one
phase operation only. Each half bridge is rated for 375 VA. One output is taken from OUTPUT LEFT
to HV COM OUT and the other output is taken from OUTPUT RIGHT to HV COM OUT.
The half bridges may be operated together for a total of 750 VA. The LEFT amplifier will be the master
amplifier and it will drive the RIGHT amplifier.
In LO RANGE the OUTPUT LEFT and RIGHT lines are tied together and drive the load with respect to
HV COM OUT.
In HI RANGE (0 to 300 vac) the OUTPUT LEFT and RIGHT lines are separated and the output is
taken from OUTPUT LEFT with respect to OUTPUT RIGHT. HV COM OUT is not used in HI RANGE.
For 1501i/iX models, one additional module is paralleled with the master module to increase amplifier
capability to 1500 VA. The additional module acts as an auxiliary to the first, master, module.
5.3 PFC Assembly
The PFC Assembly (P/N 6005-718-1 for Series II) is located on the left hand front side of the chassis.
On Series II, a high frequency input front end and high frequency transformer is used to provide a
universal AC input range. The PFC module generates a high voltage AC which is rectified by the
Rectifier board (P/N 6005-719-1) to a dual regulated DC bus that provides power to one or two
amplifier modules.
5.4 EMI Filter
For Series II units, the EMI Filter is located in the rear of the chassis directly below the Relay/Interface
board. It filters the AC input line to meet conducted emissions requirements.
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5.5 Auxiliary bias DC Supply
An auxiliary bias DC Supply (P/N 250808) is located in the rear of the chassis below the
Range/Relay/Interface assembly. Low-level DC voltage is distributed to the PFC assembly.
5.6 Range/Relay/Interface Assembly
The Range/Relay/Interface Assembly (P/N 6005-720-1 for Series II) is located in the back of the
chassis and contains the required range and output relays as well as all analog and digital interfaces to
the outside.
An isolated SELV DC supply is used to provide power to the analog and digital interface circuits (USB,
GPIB, LAN, AUX I/O).
5.7 Front Panel Assembly
The Front Panel Assembly (P/N 6005-403-1) is located on the front panel. The controller assembly
consists of the front panel with on/off switch, a CPU board and a keyboard/display board. The
controller contains the main oscillator, which generates the sine wave signal setting the frequency,
amplitude and current limit level. It also senses the output voltage to provide closed loop control of the
output. The controller also handles all user interface and remote control related tasks. The function of
each of the two boards that make up the controller assembly is described in the following paragraphs.
5.7.1 Programmable Controller
This board assembly (P/N 6005-703-2 for Series II) consists of the components for the CPU (DSP),
generating the waveform signal to the power amplifier and all program, waveform and data memory.
In addition, this board contains the circuits for all measurements. The clock and lock circuit required to
support the clock and lock mode option is also located on this board assembly if this option is installed.
5.7.2 Keyboard / Display Board
The keyboard/display assembly (P/N 6005-702-2) is mounted between the CPU board and the front
panel. If the power source is used over one of the remote control interfaces, the keyboard functions
can be locked out by asserting the REMOTE state. See the i/iX Series Programming Manual (P/N
6005-961) for details.
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CAUTION
VOLTAGES UP TO 300 VAC AND 500 VDC ARE PRESENT IN
CERTAIN SECTIONS OF THIS
POWER SOURCE. THIS EQUIPMENT GENERATES
POTENTIALLY LETHAL VOLTAGES.
DEATH
ON CONTACT MAY RESULT IF PERSONNEL FAIL TO OBSERVE
SAFETY PRECAUTIONS. DO NOT TOUCH ELECTRONIC
CIRCUITS WHEN POWER IS APPLIED.
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6. Calibration
The Routine Calibration should be performed every 12 months. Non-routine Calibration is only
required if a related assembly is replaced or if the periodic calibration is unsuccessful. Calibration of
the i/iX system can be performed from the front panel or over the bus. This section covers calibration
from the front panel.
6.1 Recommended Calibration Equipment
Digital Multimeter: Fluke 8506A, 8508 or equivalent.
10 mOhm Current Shunt: Isotek Model RUG-Z-R010-0.1.calibrated to 0.1%.
Load Bank: Various power load resistors or a resistive load bank will be needed.
Size of the load bank depends on model. A load is required to
perform the current measurement calibration near full scale. Current
measurement calibration should be done on the lowest available
voltage range.
The accuracy and value of the load resistor is not critical as long as
the current drawn is sufficient to operate the AC Source in the upper
current range (80-100 %). Suggested values of load bank settings are
shown in Table 6-1 and Table 6-2.
6.2 Calibration Screens
The calibration screens for output or measurement calibration can be selected from the MENU screen.
(Press MENU button several times to toggle to select the CALIBRATION screen.)
To select the CALIBRATION screen press the or key several times to select PASSWORD. Then
press the ENTER key. This will bring up the PASSWORD screen. To prevent unauthorized access to
calibration data, a password must be entered to access any calibration screen. The calibration
password is an numeric value equal to the high voltage range limit, typically 300. Check the serial tag
label or the LIMIT screen when in doubt.
The password can be entered using the shuttle or the keypad. Once the correct value is set, press the
ENTER key. Once set, the calibration screens remain accessible until the power source is powered
down. If you leave the calibration screen and return, toggle the value up or down and back, followed by
the ENTER key to re-engage the calibration mode.
To select the MEASUREMENT CALIBRATION screen, follow the same steps as outlined above but
select the MEASUREMENT CAL entry instead of OUTPUT CAL. If another CALIBRATION screen has
been accessed since power-up, no password is needed. Otherwise, enter the same password as
indicated above.
6.3 Measurement Calibration
The i/iX Series controller measures voltage and current by digitizing both voltage and current
waveforms on each available output phase. This data is subsequently processed and used to calculate
all measurement parameters such as VRMS, IRMS, Power, VA, and Frequency etc. To calibrate all
measurements, only the voltage and current measurement need to be calibrated specifically. All other
measurements are derived from these.
Connect the test equipment to the power source. If the power system is a master/auxiliary multi-box
system with one controller, the DVM for calibrating the measurement voltage should always be
connected to the Remote Sense connector on the Master cabinet.
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PARAMETER
Model --->
751i/iX
1501i/iX
Max current, 115 V, Low
Vrange
17.6
750 W
8.8
1500 W
PARAMETER
Model --->
1501i/iX/2
3001i/iX/2
Max current, 115 V, Low
Vrange
8.8
1500 W
4.4
3000 W
Note: The Fluke 8506A or 8508 Digital Multi meter (or higher AC accuracy DMM) must be used
for the following calibration. The DMM must be set to the AC HI ACCUR mode for all AC
measurements.
The shunt must be connected in series with the load. Connect the load to the output. Use a 10 mOhm
current shunt of sufficient power rating in series with the load to measure the AC load current.
To calibrate all measurement functions, the desired value for the measurement value of current or
voltage must be entered for the corresponding calibration value. Make the indicated adjustments by
typing in the desired display value. This should be the value indicated by the external DVM. If a 10
mOhm current shunt is used for current, 100 mV represents 10 amps.
The Calibration Load Table shows required load bank settings for the current measurement calibration
procedure. The current should be calibrated in the lowest voltage range only. (Highest current range).
Table 6-1: Calibration Load Values- Single-chassis configurations
Table 6-2: Calibration Load Values- Multi-chassis configurations
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Output Phase
Output Cal Coefficient
A
2600
B
2600
C
2600
6.3.1 Measurement Cal - AC
AC Volt Full-scale: Turn OFF the ALC mode from the CONTROL menu first. Program the
output voltage to maximum voltage on the high voltage range and 400
Hz. Close the output relay. Go to the MEASUREMENT
CALIBRATION screen. Enter the actual AC output voltage for the
MVOLT FS parameter and press the ENTER key. Save this value by
pressing the ENTER key.
AC Current Full-scale: Calibrate the measurement current under a constant current condition
(OL MODE set to CC) or a voltage fault may be generated. Apply a
load to the output. Program the output to 80% of full-scale voltage
range on the low voltage range and 400 Hz. Observe the actual output
current and enter this value for the MCURR FS parameter. Press the
ENTER key. Save this value by pressing the ENTER key.
6.4 Output Calibration
The output calibration is performed automatically when the measurement calibration takes place. As
such, there is no need to perform this calibration again. The output calibration coefficients may be
viewed by selecting the OUTPUT CAL screen.
Output gain is set at the factory and the output calibration coefficients are pre-set. There is no need to
change the factory default settings unless any of the following conditions occurs:
1. Replacement of the CPU controller board. (CI P/N 6005-703-1)
If the output gains are found to be out of tolerance, they need to be adjusted. This requires removal of
the top cover and should only be done by qualified service personnel. In that case, refer to the nonroutine calibration section.
The factory output calibration coefficients are shown in the table below.
Table 6-3: Output Calibration Coefficients - Factory Defaults.
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6.5 Non-Routine Output Offset and Gain Calibration
WARNING: This requires the top cover to be removed and should be done by qualified service
personnel only. Dangerous Voltages are present inside the AC power source.
First adjust amplifier DC offset as follows:
1. Turn on the front panel power switch.
2. Program the ALC mode to OFF, output mode to DC function, select Low Voltage range and
program 0.0 volts.
3. Use a 100K resistor in series with a 10 uF cap and connect this series network across the
output terminals. Connect an external DVM across the cap. Program the DVM to DC.
4. Close the power source output relay and adjust R70 on the Controller (A4) for zero ±5 mV.
See Figure 6-1 for pot location on the controller board.
5. Remove the series resistor and cap.
To adjust amplifier output gain, proceed as follows:
1. Connect the DVM directly to the output terminals.
2. Program the AC function, Hi range, 240V and 60 Hz. Go to the OUTP CAL screen and adjust
the VOLT FS value for an output of 240 ±1 VAC.
3. Program 10.0 volts AC. Adjust R140 on the controller (A4) for an output of 10 ± 0.2 VAC. See
Figure 6-1 for pot location on the controller board.
4. Program 240 VAC and 500 Hz. Check the output is 240 ± 5 VAC. If the output is not correct it
indicates an amplifier gain problem.
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Figure 6-1: Internal adjustment locations.
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