California Instruments iL Series User manual

iL-Series AC Power
Source / Analyzers
User Manual
Revision B
April 1996
Copyright 1995,1996
by California Instruments.
All rights reserved.
P/N 5001-967

iL Series User Manual
ii Rev B California Instruments
User's Manual
AC Power Source/Analyzers
California Instruments
Models :
•3000iL
•3000iL-400
•4500iL
•4500iL-400
•4801iL
•4801iL-400
Copyright 1995 California Instruments, Rev B, April, 1996
April 1996

iL Series User Manual
California Instruments Rev B iii
Manual conventions
The following symbols are used on the product and throughout this manual:
This sign denotes hazardous voltages.
Instruction manual symbol. The instrument will be marked with this
symbol when it is necessary for you to refer to the instruction manual
in order to protect against damage to the instrument.
This sign indicates an earth grounded terminal.
WARNING This denotes a hazard. It calls attention to a procedure, practice, or the
like which, if not correctly performed or adhered to, could result in
personal injury. Do not proceed beyond a WARNING sign until the
indicated conditions are fully understood and met.
CAUTION This denotes a hazard. It calls attention to a procedure, practice, or the
like which, if not correctly performed or adhered to, could result in
damage to or destruction of part or all of the instrument. Do not
proceed beyond a CAUTION sign until the indicated conditions are
fully understood and met. Instruments that appear damaged or
defective should be made inoperative and secured against unintended
operation until they can be repaired by qualified service personnel.

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iv Rev B California Instruments
SAFETY SUMMARY
The following general safety precautions must be observed during all phases of
operation of this power module. Failure to comply with these precautions or with
specific warnings elsewhere in this manual violates safety standards of design,
manufacture, and intended use of the instrument. California Instruments assumes
no liability for the user's failure to comply with these requirements.
WARNING: LETHAL VOLTAGES. AC sources can supply 425 V peak
at their output. DEATH on contact may result if the output terminals or
circuits connected to the output are touched when power is applied.
BEFORE APPLYING POWER
Verify that the product is set to match the available line voltage.
GROUND THE INSTRUMENT
This product is a Safety Class 1 instrument (provided with a protective earth
terminal). To minimize shock hazard, the instrument chassis and cover must be
connected to an electrical ground. The instrument must be connected to the AC
power mains through a grounded power cable, with the ground wire firmly connected
to an electrical ground (safety ground) at the power outlet. Any interruption of the
protective (grounding) conductor or disconnection of the protective earth terminal will
cause a potential shock hazard that could result in personal injury.
ATTENTION: Un circuit de terre continu est essentiel en vue du
fonctionnement sécuritaire de l'appareil. Ne jamais mettre l'appareil en
marche lorsque le conducteur de mise à la terre est débranché
FUSES Only fuses with the required rated current, voltage, and specified type (normal blow,
time delay, etc.) should be used. Do not use repaired fuses or short-circuited
fuseholders. To do so could cause a shock or fire hazard.
DO NOT OPERATE IN AN EXPLOSIVE ATMOSPHERE
Do not operate the instrument in the presence of flammable gases or fumes.
DO NOT REMOVE THE INSTRUMENT COVER
Operating personnel must not remove instrument covers. Component replacement
and internal adjustments must be made only by qualified service personnel.
DO NOT EXCEED INPUT RATINGS
Operation at line voltages or frequencies in excess of those stated on the line rating
label may cause leakage currents in excess of 5.0 mA peak.

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California Instruments Rev B
v
Table of contents
1. Introduction ...................................................................................................................1
1.1 About this chapter..............................................................................................................1
1.2 Document Reference.........................................................................................................1
1.3 Safety Considerations........................................................................................................2
1.4 General Description...........................................................................................................2
1.5 Options and Accessories...................................................................................................6
1.6 User-replaceable Parts......................................................................................................7
2. Installation.....................................................................................................................8
2.1 About this chapter..............................................................................................................8
2.2 Inspection...........................................................................................................................8
2.3 Packaging Material ............................................................................................................8
2.4 Items Supplied...................................................................................................................8
2.5 Bench Operation................................................................................................................9
2.6 Rack Mounting...................................................................................................................9
2.7 Input Connections............................................................................................................10
2.8 OVP Considerations ........................................................................................................14
2.9 Output Rating...................................................................................................................14
2.10Trigger Connections.........................................................................................................14
2.11 Digital Connections..........................................................................................................14
2.12 Controller Connections ....................................................................................................15
3. Turn-On Checkout ......................................................................................................19
3.1 Preliminary Checkout.......................................................................................................19
3.2 Using the Keypad.............................................................................................................19
3.3 Output Checkout..............................................................................................................20
3.4 In Case of Trouble ...........................................................................................................23
4. Front Panel Operation.................................................................................................25
4.1 Introduction......................................................................................................................25
4.2 Front Panel Description ...................................................................................................25
4.2 System Keys....................................................................................................................28
4.3 Function Keys..................................................................................................................29
4.4 Entry Keys........................................................................................................................37
4.5 Examples of Front Panel Programming...........................................................................39
4.6 Trigger Delays and Phase Synchronization.....................................................................45
4.7 Programming Slew Rates ................................................................................................48
4.8 Measuring Peak Inrush Current.......................................................................................51
4.9 Setting the IEEE-488 Address and RS-232C Parameters...............................................52
4.10 Saving and Recalling Operating States...........................................................................53
5. Specifications..............................................................................................................54
5.1 Performance Specifications.............................................................................................54
5.2 IEC Measurement Specifications.....................................................................................55
5.3 Typical Specifications ......................................................................................................56
6. Calibration and performance verification ....................................................................58
6.1 Equipment Required........................................................................................................58
6.2 Operation Verification ......................................................................................................59
6.3 Verification Test Checklist................................................................................................62
6.4 Performing the Calibration Procedure..............................................................................62

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7. Troubleshooting.......................................................................................................... 69
7.1 Introduction......................................................................................................................69
7.2 Localizing the Problem....................................................................................................69
7.3 Troubleshooting Procedure............................................................................................70
7.4 Firmware Revisions.........................................................................................................71
8. Principles of Operation................................................................................................ 76
8.1 Introduction......................................................................................................................76
8.2 General Description.........................................................................................................76
8.3 Assembly Descriptions....................................................................................................76
9. Replaceable Parts....................................................................................................... 80
9.1 Introduction......................................................................................................................80
9.2 Replaceable Assemblies.................................................................................................80
9.3 Other User-Replaceable Parts/Options...........................................................................81
9.4 Options............................................................................................................................81
9.5 Accessories.....................................................................................................................81
10. Diagrams .................................................................................................................... 82
11. Error Messages .......................................................................................................... 85

iL Series User Manual
California Instruments Rev B vii
Table of Figures
Figure 1: AC Source Functional Elements ...............................................................................2
Figure 2: AC Source Output Characteristic..............................................................................5
Figure 3: AC Source VA Capabilities........................................................................................6
Figure 4 Outline Diagram .........................................................................................................9
Figure 5 Connecting the Power Cord.....................................................................................11
Figure 6 Output Connections..................................................................................................11
Figure 7 Remote Sense Connections ....................................................................................13
Figure 8 FLT/INH Examples...................................................................................................15
Figure 9 RS232C PC to AC Source cable wiring diagram .....................................................17
Figure 10 Verification Connections.........................................................................................21
Figure 11 Front Panel, Overall View.......................................................................................25
Figure 13 Function Keys.........................................................................................................29
Figure 14 Entry Keys ..............................................................................................................38
Figure 15 Pulse Transients ....................................................................................................43
Figure 16 List Transients........................................................................................................44
Figure 17 Trigger Delays and Phase Synchronization ...........................................................46
Figure 18 Phase Synchronization on Three Phase Sources..................................................48
Figure 19 Programming Slew Rates ......................................................................................49
Figure 20 Verification and Calibration Test Setup..................................................................59
Figure 21 Calibration Switches...............................................................................................68
Figure 22 Troubleshooting Diagram for No Output Present...................................................74
Figure 23 Troubleshooting Diagram for One or More Outputs Missing .................................75
Figure 24 AC Power Source Block Diagram..........................................................................79
Figure 25 Auxiliary Power Supply Parts Location...................................................................82
Figure 26 AC Input Board Parts Location...............................................................................83
Figure 27 Mother Board Parts Location..................................................................................84

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viii Rev B California Instruments
Table of Tables
Table 1 : User Manual Organization......................................................................................... 1
Table 2: iL Series model numbers ........................................................................................... 3
Table 3 : Options...................................................................................................................... 6
Table 4 : Accessories............................................................................................................... 6
Table 5 : Service part numbers................................................................................................ 7
Table 6 : American Wire Gage (AWG) characteristics.......................................................... 12
Table 7 : AWG temperature coefficients................................................................................ 12
Table 8 : RS232C DB-9 connector pin assignments.............................................................. 17
Table 9 : Connection Verification Steps................................................................................. 22
Table 10 : Power on selftest Error codes............................................................................... 23
Table 11 : Display annunciator descriptions........................................................................... 26
Table 12 : Interface selection................................................................................................. 28
Table 13 : Immediate action keys .......................................................................................... 29
Table 14 : Phase selection display annunciators................................................................... 30
Table 15 : Measurement display readouts............................................................................. 31
Table 16 : Harmonic measurement display readouts............................................................. 32
Table 17 : Output control display readouts............................................................................. 32
Table 18 : Current limit display readouts................................................................................ 33
Table 19 : Frequency control display readouts ...................................................................... 33
Table 20 : Phase control display readouts............................................................................. 34
Table 21 : Waveform control display readouts....................................................................... 34
Table 22 : Pulse menu display readouts................................................................................ 34
Table 23 : Output menu list display readouts......................................................................... 35
Table 24 : Protection menu list display readouts.................................................................... 36
Table 25 : Status menu list display readouts.......................................................................... 36
Table 26 : Trigger control list display readouts....................................................................... 37
Table 27 : List command display readouts............................................................................. 37
Table 28 : Setting the output voltage amplitude..................................................................... 40
Table 29 : Setting individuals output phases in three phase mode........................................ 41
Table 30 : Setting the output frequency ................................................................................. 41
Table 31 : Setting protection parameters............................................................................... 42
Table 32 : Programming a Voltage Step transient................................................................. 43
Table 33 : Programming a Voltage Pulse transient................................................................ 44
Table 34 : Programming Transient Lists................................................................................ 45
Table 35 : iL Series performance specifications .................................................................... 54
Table 36 : IEC Measurement Specifications.......................................................................... 55
Table 37 : iL Series typical specifications............................................................................... 57
Table 38 : Required Calibration equipment............................................................................ 58
Table 39 : Voltage programming readback test steps ........................................................... 60
Table 40 : Current programming readback test steps............................................................ 61
Table 41 : Verification test checklist....................................................................................... 62
Table 42 : Front panel calibration procedure steps................................................................ 66
Table 43 : Changing the calibration password....................................................................... 67
Table 44 : IEEE-488 Calibration Error Messages .................................................................. 67
Table 45 : Specific Troubleshooting Procedures ................................................................... 70
Table 46 : AC Power Source Troubleshooting Procedure..................................................... 73
Table 47 : Pin and Signal Voltages at A10 Connectors ......................................................... 73
Table 48 : Replaceable assemblies ....................................................................................... 81
Table 49 : User replaceable parts.......................................................................................... 81
Table 50 : Available options ................................................................................................... 81
Table 51 : Available accessories............................................................................................ 81
Table 52 : Standard Event Status Register (ESR) bits........................................................... 85
Table 53 : Standard Event Status Register (ESR) Error codes ............................................. 87

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iL Series User Manual
California Instruments Rev B 1
1. Introduction
1.1 About this chapter
This chapter covers general information concerning the AC power source/analyzer
and also provides and overview of related documentation that is supplied with the iL
Series products.
Options and accessories available for the iL Series are listed as well as replacement
parts.
1.2 Document Reference
This manual describes the operation of the California Instruments iL Series AC
Source/Analyzers .The following documents are shipped with your AC source:
•a User's Manual, containing detailed installation, checkout, and front panel
information
•a Programming Manual, containing detailed IEEE-488 programming information
You will find information on the following tasks in these manuals. Refer to the table
of contents of each manual for a complete list of the topics.
Table 1: User Manual Organization
Topic Location
Accessories and Options Chapter 1
Calibrating the AC source Chapter 6
Front panel keys Chapter 4
Front panel programming examples Chapter 4
Line voltage connections Chapter 2
Line voltage ratings Chapter 5
User replaceable parts Chapter 1
Operator troubleshooting Chapter 2
Operating characteristics Chapter 5
Performance specifications Chapter 5
Quick operating checkout Chapter 2
Rack mounting Chapter 2
RS-232C operation Chapter 2
SCPI programming commands Chapter 4 -Programming
Manual
SCPI programming examples Chapter 5 -Programming
Manual
Turn-on/checkout Chapter 3
Wiring discrete fault indicator (DFI) Chapter 2
GPIB controller Chapter 2
load or loads Chapter 2
Voltage sensing (local and remote) Chapter 2
remote inhibit (RI) Chapter 2

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2Rev B California Instruments
1.3 Safety Considerations
This AC source is a Safety Class 1 instrument, which means it has a protective earth
terminal. That terminal must be connected to earth ground through a power source
equipped with a ground receptacle. Refer to the Safety Summary page at the
beginning of this manual for general safety information. Before installation or
operation, check the AC source and review this manual for safety warnings and
instructions. Safety warnings for specific procedures are located at appropriate
places in the manual.
1.4 General Description
The AC source combines three instruments in one unit as shown in the following
figure. The function generator produces waveforms with programmable amplitude,
frequency, and shape. The power amplifier amplifies the function generator signal
to produce the AC power for your application. The measurement functions range
from a simple readback of rms voltage and current, to sophisticated capabilities such
as waveform analysis.
Figure 1: AC Source Functional Elements

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California Instruments Rev B 3
The following descriptions apply to all models in the California Instruments iL Series
product line. Specifically, the following models are included:
Table 2: iL Series model numbers
Model Maximum
power output
Operating Modes
3000iL 3000 VA Single or Three phase. 208 V L-L 3ø input
3000iL-400 3000 VA Single or Three phase. 400 V L-L 3ø input
4500iL 4500 VA Single or Three phase. 208 V L-L 3ø input
4500iL-400 4500 VA Single or Three phase. 400 V L-L 3ø input
4801iL 4800 VA Single phase output. 208 V L-L 3ø input
4801iL-400 4800 VA Single phase output. 400 V L-L 3ø input
1.4.1 Capabilities
•Programmable AC voltage, frequency, phase, and current limit.
•Sine, square, clipped sine, and user-definable waveforms.
•Voltage and frequency slew control.
•Synthesized waveform generation for high resolution and accuracy in frequency,
low waveform distortion, and glitch-free phase transitions.
•Step and pulse output transients for generating surge, sag, dropout, and other
line disturbance simulations.
•Nonvolatile list programming for generating complex output transients or test
sequences.
•Extensive measurement capability:
•Ac rms, dc, ac+dc voltage and current and peak current.
•Real, reactive, and apparent power.
•Harmonic analysis of voltage and current waveforms gives amplitude,
phase, and total harmonic distortion results up to the 50th harmonic.
•Triggered acquisition of digitized voltage and current with extensive post-
acquisition calculations.
•Additional total power and neutral current measurements in the three-phase
mode.
•All measurements made with 16-bit resolution.
•Trigger In and Trigger Out for synchronizing transient events or measurements
with external signals.
•Front panel control with 14-character vacuum fluorescent display, keypad, and
rotary pulse generators for voltage and frequency settings.
•Built-in IEEE-488 and RS-232C interface programming with SCPI command
language.
•Non-volatile state and waveform storage and recall.
•Over-voltage, over-current, over-temperature, and RI/DFI protection features.
•Built-in output disconnect relays.
•Extensive selftest, status reporting, and software calibration.
1.4.2 Front Panel Controls
The front panel has both rotary (rotary pulse generator -RPG) and keypad controls
for setting the output voltage and frequency. The panel display provides digital
readouts of a number of output measurements. Annunciators display the operating
status of the AC source. System keys let you perform system functions such as
setting the IEEE-488 address and recalling operating states. Front panel Function

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4Rev B California Instruments
keys access the AC source function menus. Front panel Entry keys let you select
and enter parameter values.
Note: Refer to chapter 4for a complete description of the front panel
controls.
1.4.3 Remote Programming
The AC source may be remotely programmed via the IEEE-488 bus and/or from an
RS-232C serial port. IEEE-488 bus programming is with SCPI (Standard
Commands for Programmable Instruments) commands that make the AC source
programs compatible with those of other manufacturers’ IEEE-488 programmable
instruments. AC source status registers permit remote monitoring of a wide variety
of AC source operating conditions
Refer to the iL Series SCPI Programming Manual (part number 5001-969) for further
information about remotely programming the AC source.
1.4.4 Output Characteristic
Ranges
The AC source's output characteristic is shown in the following figure. The output
voltage of the AC source may be adjusted to any value within the range of the unit.
On three-phase units, each phase can be adjusted independently of the other two.
Rated output VA and conversion efficiency is greatest when the output voltage is set
near maximum. For this reason, the AC source is designed to operate on one of two
ranges: 150 volts full-scale, or 300 volts full-scale.
Note: For best results, always choose the range that allows you to operate
nearest the full-scale output capability of the selected range.

iL Series User Manual
California Instruments Rev B 5
Vrms
Irms
300 V
150 V
32A (4801iL)
10A (4500iL)
6.67A (3000iL)
16A (4801iL)
5A (4500iL)
3.33A (3000iL)
0
Figure 2: AC Source Output Characteristic
Output VA Capability
The output capability of each output phase is limited by VA (volts-amps) rather than
power (watts). The amount of VA available to a load can be determined by
examining figure 1-3, the output power curve. This curve rates the available VA
versus output voltage. Full VA is available only at full-scale voltage. Full current is
available at voltages between 50% and 100% of the output voltage range.
The load on the AC source may draw full VA at any power factor between 0 and 1. If
the load draws current in excess of the maximum rated rms or peak current, the
voltage amplitude will be reduced to prevent excessive internal power dissipation.

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6Rev B California Instruments
Figure 3: AC Source VA Capabilities
Note: Chapter 5documents the AC source's specifications and supplemental
characteristics.
1.5 Options and Accessories
Option Description
-400 Input power 360-440 Vac, three-phase, 47-63 Hz
Table 3: Options
Item CI Part Number
Rack slides (General Devices S-120-
B307-2) 210960
Rack mount ears (4 required) 5001-249-1
Table 4: Accessories

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California Instruments Rev B 7
1.6 User-replaceable Parts
The following table lists some common operator-replaceable parts:
Description CI Part No.
Rack slides see "Accessories"
Rack mount ears see "Accessories"
7-terminal sense connector plug 410637
Sense connector cover 250578
4-terminal digital connector plug 410636
AC input safety cover 5001-226-1
AC input safety cover strain relief 211112
AC input safety cover bushing 211114
Screw (4), AC input safety cover (6-32 x 1.5
in) FS1144
AC output safety cover 250576
Screw (2), AC output safety cover (6-32 x
5/16 in) FS1028
Fuse safety cover 250577
Screw (2), fuse safety cover (6-32 x 5/16 in) FS1028
User's Manual (this manual) 5001-967
Programming Manual 5001-969
Table 5: Service part numbers

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8Rev B California Instruments
2. Installation
2.1 About this chapter
This chapter provides information on unpacking and installing the iL Series AC power
source. If you are setting up this instrument for the first time, please study this
chapter carefully before proceeding. If the AC source has already been setup, this
chapter can be used for periodic inspection of the setup.
For regular operating information, proceed to chapter 3.
2.2 Inspection
When you receive your AC source, inspect it for any obvious damage that may have
occurred during shipment. If there is damage, notify the shipping carrier
immediately.
2.3 Packaging Material
Until you have checked out the AC source, save the shipping carton and packing
materials in case the AC source has to be returned. Obtain a Return Material
Authorization number by contacting California Instruments Customer Service
department prior to returning any equipment for service. Also attach a tag identifying
the model number and the owner and include a brief description of the problem.
Note: Returning equipment to California Instruments without an RMA
number may result in considerable delays.
2.4 Items Supplied
Check that the following items are included with your AC source (see Table 4for part
numbers):
Sense/Digital connectors A 4-terminal digital plug that connects to the back of
the unit
A 7-terminal sense plug that connects to the back of
the unit
Safety Covers AC input cover with strain relief
AC output cover
Fuse cover
Manuals User's Manual on CD ROM
Programming Manual on CD ROM
Change page If applicable, change sheets may be included with
this manual. If there are change sheets, make the
indicated corrections in this manual.

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California Instruments Rev B 9
2.5 Bench Operation
The outline diagram in Figure 4gives the dimensions of your AC source. The feet
may be removed for rack mounting. Your AC source must be installed in a location
that allows sufficient space at the sides and rear of the cabinet for adequate air
circulation. Minimum clearances are 1 inch (25 mm) along the sides.
Note: Do not block the fan exhaust at the rear of the unit.
Figure 4Outline Diagram
2.6 Rack Mounting
Due to their size and weight, iL Series AC power sources are frequently rack
mounted. The three iL models weigh 87.7 kg (193 lbs).
Note: Obtain adequate help when moving or mounting the unit in the rack.
The AC source can be mounted in a standard 19-inch rack panel or cabinet. Rack
slides and rack ears are available as accessories
Note: All iL Series models require instrument support rails for non-stationary
installations. These are normally ordered with the cabinet and are not
included with the rack mounting kits.

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10 Rev B California Instruments
2.7 Input Connections
The AC source requires a 3-phase power service that provides 7350 VA
(6000 W) maximum. The power service should have a current rating
greater than or equal to the AC source's fuse rating. The AC source
has a delta input (no neutral connection) and will accept power from
either delta (triangle) or wye (star) services.
Caution: Two input voltage ranges are available (see "AC Input Ratings"
in chapter 5). The AC source will be damaged if it is operated at
an input voltage that is outside of its configured input range.
In order to maintain phase current balancing, the power service should be a
dedicated line with only iL Series AC sources drawing current from it. A disconnect
box located near the AC source is recommended for all installations and is
mandatory for direct-wired installations.
2.7.1 Installing the Power Cord
Installation of the power cord must be done by a qualified electrician and in
accordance with local electrical codes.
See Figure 5and proceed as follows:
•Check the line fuses as follows:
•Examine the FUSES label on the rear panel.
•Remove the safety cover in front of the fuse caps.
•Unscrew the line fuse caps from the rear panel and verify that all fuses are
as specified on the label. Reinstall the fuses.
•Reinstall the safety cover in front of the fuse caps.
•Remove the AC input cover from the back of the unit.
•Open the line clamp on the AC input cover and insert the line cord through the
opening.
•Position the power cord so that the clamp is near the end of the outside
insulating sheath on the power cord. Tighten the screws to secure the clamp.
Secure the three AC lines to the AC power strip as follows:
•Phase 1 to L1 (black).
•Phase 2 to L2 (red).
•Phase 3 to L3 (orange).
•Secure the ground wire (green) to the chassis earth ground terminal.
•Slip the safety cover over the AC input terminal strip and secure the cover with
the four screws.
•If required, wire the appropriate power plug to the other end of the power cord.
Strip back the sheath 10 cm (4 in).