California Instruments 801P Series Owner's manual

Revision H
May 2000
Copyright 1996,1997,1998,1999,2000
By California Instruments.
All rights reserved.
P/N 5002-966
801P / 1001P / 1251P Series
AC Power Source
User and Programming Manual

User and Programming Manual -Rev H California Instruments
P Series May 2000 i
User's Manual
AC Power Source
California Instruments
Models:
⋅801P
⋅1001P
⋅1251P
Copyright 1996,1997,1998,1999,2000 California Instruments, Rev H, May 2000

User and Programming Manual -Rev H California Instruments
ii May 2000 P Series
SAFETY SUMMARY
This power source contains high voltage and current circuits which are potentially lethal.
Because of its size and weight, mechanical stability must be ensured. The following safety
guidelines must be followed when operating or servicing this equipment. These guidelines
are not a substitute for vigilance and common sense. California Instruments assumes no
liability for the customer's failure to comply with these requirements.
APPLYING POWER AND GROUNDING
Verify the correct voltage is applied to the unit (100 to 240 VAC Nominal). Verify that the input
power cord is plugged into a properly grounded utility outlet.
FUSES
Use only fuses of the specified current, voltage, and protection speed.
Do not short out the fuse holder or use a repaired fuse.
The 801P/1001P units use a North American ferrule type fuse rated at 15A and 250Volts. (Fast Acting)
The 1251P unit uses a North American ferrule type fuse rated at 20A and 250Volts. (Fast Acting)
DO NOT OPERATE IN A VOLATILE ATMOSPHERE
Do not operate the power source in the presence of flammable gases or fumes.
DO NOT TOUCH ENERGIZED CIRCUITS
Disconnect the power cable before servicing this equipment. Even with the power cable
disconnected, high voltage can still exist on some circuits. Discharge these voltages before
servicing. Only qualified service personnel may remove covers, replace components or make
adjustments.
DO NOT SERVICE ALONE
Do not remove covers, replace components, or make adjustments unless another person, who
can administer first aid, is present.
DO NOT EXCEED INPUT RATINGS
Do not exceed the rated input voltage or frequency. Additional hazards may be introduced
because of component failure or improper operation.
DO NOT MODIFY INSTRUMENT OR SUBSTITUTE PARTS
Do not modify this instrument or substitute parts. Additional hazards may be introduced
because of component failure or improper operation.
MOVING THE POWER SOURCE
When moving the power source, observe the following:
1. Remove all AC power to unit.
2. Use two people to prevent injury.
SURFACE STABILITY

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1. Operate the power source only on a level surface.
ONE YEAR WARRANTY
CALIFORNIA INSTRUMENTS CORPORATION warrants each instrument manufactured by
them to be free from defects in material and workmanship for a period of one year from the date
of shipment to the original purchaser. Excepted from this warranty are fuses and batteries
which carry the warranty of their original manufacturer where applicable. CALIFORNIA
INSTRUMENTS will service, replace, or adjust any defective part or parts, free of charge, when
the instrument is returned freight prepaid, and when examination reveals that the fault has not
occurred because of misuse, abnormal conditions of operation, user modification, or attempted
user repair. Equipment repaired beyond the effective date of warranty or when abnormal usage
has occurred will be charged at applicable rates. CALIFORNIA INSTRUMENTS will submit an
estimate for such charges before commencing repair, if so requested.
PROCEDURE FOR SERVICE
If a fault develops, notify CALIFORNIA INSTRUMENTS or its local representative, giving full
details of the difficulty, including the model number and serial number. On receipt of this
information, service information or a Return Material Authorization (RMA) number will be given.
Add RMA number to shipping label. Pack instrument carefully to prevent transportation
damage, affix label to shipping container, and ship freight prepaid to the factory. CALIFORNIA
INSTRUMENTS shall not be responsible for repair of damage due to improper handling or
packing. Instruments returned without RMA No. or freight collect will be refused. Instruments
repaired under Warranty will be returned by prepaid surface freight. Instruments repaired
outside the Warranty period will be returned freight collect, F.O.B. CALIFORNIA
INSTRUMENTS, 9689 Towne Centre Drive, San Diego, CA 92121-1964. If requested, an
estimate of repair charges will be made before work begins on repairs not covered by the
Warranty.
DAMAGE IN TRANSIT
The instrument should be tested when it is received. If it fails to operate properly, or is
damaged in any way, a claim should be filed immediately with the carrier. A full report of the
damage should be obtained by the claim agent, and a copy of this report should be forwarded
to us. CALIFORNIA INSTRUMENTS will prepare an estimate of repair cost and repair the
instrument when authorized by the claim agent. Please include model number and serial
number when referring to the instrument.

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Table of Contents
1. INTRODUCTION ............................................................................................................. 1
1.1 General Description.........................................................................................................1
2. SPECIFICATIONS............................................................................................................ 3
2.1 Electrical........................................................................................................................3
2.2 Mechanical.....................................................................................................................5
2.3 Environmental.................................................................................................................6
2.4 Regulatory......................................................................................................................6
2.5 Front Panel Controls........................................................................................................6
3. UNPACKING AND INSTALLATION.............................................................................. 10
3.1 Unpacking....................................................................................................................10
3.2 Power Requirements .....................................................................................................10
3.3 Mechanical Installation ..................................................................................................10
3.4 Input Wiring..................................................................................................................10
3.5 Output Connections.......................................................................................................11
3.6 Output Voltage Ranges..................................................................................................12
3.7 Functional Test.............................................................................................................12
4. FRONT PANEL OPERATION....................................................................................... 14
4.1 Front Panel Guided Tour................................................................................................14
4.2 How to... ......................................................................................................................17
5. PRINCIPLE OF OPERATION ....................................................................................... 20
5.1 General........................................................................................................................20
5.2 Overall Description ........................................................................................................20
5.3 Power Factor Correction Module (PFC) ...........................................................................21
5.4 DC -DC Converter Module .............................................................................................21
5.5 Oscillator Control Board.................................................................................................22
5.6 DC to AC Power Module................................................................................................22
5.7 RS232 Board................................................................................................................23
6. CALIBRATION................................................................................................................ 26
6.1 Calibration Equipment....................................................................................................26
6.2 Routine Calibration........................................................................................................26
6.3 Non-Routine Calibration .................................................................................................29
7. SERVICE......................................................................................................................... 32
7.1 General........................................................................................................................32
7.2 Basic Operation............................................................................................................32
7.3 Advanced Troubleshooting..............................................................................................34
8. INTRODUCTION TO PGUI/PGUI32 ............................................................................ 38
8.1 About This Program.......................................................................................................38
8.2 About This Section of the Manual ...................................................................................38
8.3 Program Requirements..................................................................................................38
8.4 RS232C Cable Wiring....................................................................................................39
9. PGUI/PGUI32 SETUP AND INSTALLATION............................................................... 40
9.1 Connecting the AC Source to the PC..............................................................................40
9.2 Installing the PGUI Software...........................................................................................40
9.3 Trouble Shooting -RS232C............................................................................................41
9.4 Installed Files ...............................................................................................................46
9.5 Software Registration.....................................................................................................47
10. TOP ASSEMBLY REPLACEABLE PARTS.............................................................. 51
11. PROGRAMMING INFORMATION............................................................................. 53
12. INTRODUCTION TO SCPI........................................................................................ 55
12.1 Conventions Used in This Manual ...................................................................................55

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12.2 The SCPI Commands and Messages..............................................................................55
12.3 Using Queries...............................................................................................................57
12.4 Structure of a SCPI Message.........................................................................................58
12.5 SCPI Data Formats.......................................................................................................60
13. SYSTEM CONSIDERATIONS....................................................................................63
13.1 RS232C Interface..........................................................................................................63
14. SCPI COMMAND REFERENCE ................................................................................66
14.1 Introduction ..................................................................................................................66
14.2 Subsystem Commands .................................................................................................66
14.3 System Commands ......................................................................................................71
14.4 Common Commands.....................................................................................................73
15. PROGRAMMING EXAMPLES....................................................................................78
15.1 Introduction ..................................................................................................................78
15.2 Programming the Output................................................................................................78
15.3 Making Measurements..................................................................................................79
16. STATUS REGISTERS ................................................................................................80
16.1 Power-On Conditions.....................................................................................................80
16.2 Standard Event Status Group.........................................................................................80
16.3 Status Byte Register.....................................................................................................81
16.4 Examples.....................................................................................................................81
INDEX...........................................................................................................................86

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List of Figures
FIGURE 3-1: THE 801P/1001P/1251P AC POWER SOURCE..................................................................10
FIGURE 3-2: 1251RP REAR PANEL VIEW...........................................................................................11
FIGURE 3-3: FUNCTIONAL TEST SETUP...............................................................................................13
FIGURE 4-1: FRONT PANEL VIEW......................................................................................................14
FIGURE 4-2: SHUTTLE KNOB............................................................................................................16
FIGURE 5-1: AC SOURCE BLOCK DIAGRAM.........................................................................................20
FIGURE 5-2: OSCILLATOR AND CONTROLS..........................................................................................22
FIGURE 6-1: TEST EQUIPMENT HOOKUP FOR ROUTINE OUTPUT CALIBRATION ..............................................27
FIGURE 6-2: TEST EQUIPMENT HOOK-UP FOR MEASUREMENT CALIBRATION ............................................28
FIGURE 6-3: LOCATION OF INTERNAL ADJUSTMENTS..............................................................................30
FIGURE 8-1: RS232C CABLE WIRING ...............................................................................................39
FIGURE 9-1: SYSTEM PROPERTIES DIALOG BOX ..................................................................................43
FIGURE 9-2: ADVANCED PORT SETTINGS DIALOG BOX..........................................................................44
FIGURE 9-3: COM PORT PROPERTIES DIALOG BOX .............................................................................44
FIGURE 12-1: PARTIAL COMMAND TREE.............................................................................................56
FIGURE 12-2: COMMAND MESSAGE STRUCTURE..................................................................................58
FIGURE 13-1: RS232C INTERFACE CABLE WIRING DIAGRAM...................................................................65
FIGURE 16-1: AC SOURCE STATUS SYSTEM MODEL ............................................................................80
List of Tables
TABLE 1: LOGIC BOARD LED'S.........................................................................................................21
TABLE 2: LOAD AND CURRENT.........................................................................................................26
TABLE 3: BASIC SYMPTOMS............................................................................................................32
TABLE 4: POOR OUTPUT VOLTAGE REGULATION...................................................................................32
TABLE 5: OVERLOAD LIGHT ON........................................................................................................32
TABLE 6: DISTORTED OUTPUT..........................................................................................................33
TABLE 7: UNIT SHUTS DOWN AFTER 3-5 SECONDS ................................................................................33
TABLE 8: NO OUTPUT AND NO LIGHTS ON FRONT PANEL .........................................................................33
TABLE 9: NO OUTPUT BUT "POWER ON" LED IS LIT.................................................................................33
TABLE 10: REPLACEABLE PARTS.....................................................................................................51
TABLE 11: BIT CONFIGURATION OF STANDARD EVENT STATUS REGISTER...............................................75
TABLE 12: *RST DEFAULT PARAMETER VALUES ..................................................................................76
TABLE 13: STATUS REGISTER POWER ON CONDITION .............................................................................76
TABLE A-14: ERROR MESSAGES .....................................................................................................84

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1. Introduction
This instruction manual contains information on the installation, operation, calibration and
maintenance of the P Series power sources with programmable controller.
1.1 General Description
The 801P/1001P/1251P AC source is a high efficiency, light weight 800VA, 1000VA or
1250VA programmable AC power source. The output has two voltage ranges of 0-135V or 0-
270V with a frequency range of 16 Hz to 500 Hz. The maximum output current is 9.2 amps at
135 volts range and 4.6 amps at 270 volts range for the 1250VA model. The maximum output
current is 7.4 amps at 135 volts and 3.7 amps at 270 volts range for the 1000VA model. The
maximum output current is 6.0 amps at 135 volts and 3.0 amps at 270 volts range for the
800VA model.
The universal nominal input can be from 100 volts to 240 volts at 50 Hz or 60 Hz line frequency.
Simple front panel controls enable the voltage and frequency to be changed. An optional
RS232C serial interface is available for applications that require remote control and
measurements.

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2. Specifications
All specifications at 25±1°C unless noted otherwise.
2.1 Electrical
2.1.1 Input
Line Voltage:85V to 264V maximum
100V to 240V nominal
Line Current: 25 A RMS max. (1251RP)
Line Frequency:47-63 Hertz
Efficiency:80% (typical) depending on line and load
Power Factor:0.95 or greater typical
Inrush Current:70 A peak max. at 260V input
Hold-Up Time:20 ms (with no effect on output)
Isolation Voltage:Input to output = 2200 VAC, input to chassis = 1350 VAC
2.1.2 Output
Voltage Range: Low Range is 0 to 135 V rms
High Range is 0 to 270 V rms
Voltage Resolution: 0.1 volt
Voltage Accuracy: ±1% or range, 50 to 60 Hz
±2% at 400 Hz
Line & Load Regulation: 2%of FS on low range, 1% of FS on Hi range
Voltage Distortion: 1% max. THD at 50/60 Hz
Total Power: 800VA maximum at full scale voltage either range (model 801P)
1000VA maximum at full scale voltage either range (model 1001P)
1250 VA maximum at full scale voltage either range(model 1251P)

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Current: 6.0 A rms, 17.8 A peak (low range, model 801P)
3.0A rms, 8.9 A peak (high range, model 801P)
7.4 A rms, 22.2 A peak (low range, model 1001P)
3.7 A rms, 11.1 A peak (high range, model 1001P)
9.2 A rms, 27.6 A peak (low range, model 1251P)
4.6 A rms, 13.8 A peak (high range, model 1251P)
Current Limit: 801P 1001P 1251P
135V range: 0.0 to 6.0 7.4 9.2
270V range: 0.0 to 3.0 3.7 4.6
Accuracy: Programmed value +5% of maximum current
Frequency Range:Range Resolution
16.0 -99.9 Hz 0.1 Hz
100 -500 Hz 1 Hz
Frequency Accuracy: ±0.02% of program value
DC Offset Voltage:Less than ±25 mV with linear load.
Output Noise:<0.2 volts RMS on 135 range, <0.5 volts RMS on 270 range.
2.1.3 Measurements
Current (TRMS)
Resolution: 0.1 amp
Accuracy: ±0.2 amp
Voltage Accessible only through RS232
0 -250V 251 to 270V
Resolution 1 Volts 2 volts
Accuracy: ±4 Volts ±6 volts

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2.1.4 System Specification
Non volatile
Memory Storage: 8 complete instrument setups [ Accessible through RS232C interface
only ].
RS232C Interface: Bi-directional serial interface
[ optional ] 9 pin D-shell connector
Handshake: CTS, RTS
Data bits: 8
Stopbits: 1
Baud rate: 9600
IEEE 488.2 commands and SCPI
2.1.5 Unit Protection
Input Overcurrent:Electronic current limit with fuse.
Input Overvoltage
Transients:Surge protection to withstand EN50082-1 (IEC 801-4, 5) levels.
Output Overcurrent:Shutdown after 0.1 second after overcurrent.
Output Overvoltage: Shutdown, recycle input power to reset.
Output Short Circuit:Peak current limit. Shutdown after 0.1 seconds.
Overtemperature:Automatic shutdown.
2.2 Mechanical
Dimensions:8.5” (216mm) width x 8.25” (210mm) height x 17.5” (445mm) depth
chassis size stand-alone configuration.
Unit Weight:30 lbs/13.6 kgms.
Material:Aluminum chassis, panels and cover.
Finish:Powder coat T241-GR11 platinum
Cooling:Fan cooled with air intake on the rear and exhaust to the sides.
Internal Construction:Modular sub assemblies.

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Front panel mounted
output connections:
CEE 7/7 European socket
US domestic Dual 120V line socket
2.3 Environmental
Operating Temp:0 degrees to +40 degrees Celsius.
Storage Temp: 0 degrees to +70 degrees Celsius.
Humidity: Operating: ≤90% RH up to 40°C.
Storage: ≤90% RH up to 40°C, ≤75% RH up to 70°C.
Creepage and
Clearance: Rated for Pollution Degree 2.
Insulation: Rated to Installation Category(Overvoltage Category) II
Vibration:Designed to meet NSTA 1A transportation levels.
Shock:Designed to meet NSTA 1A transportation levels.
2.4 Regulatory
Electromagnetic Designed to meet EN50081-2 and EN50082-2 European Emissions
Emissions and and Immunity standards as required for the “CE” mark.
Immunity:
Acoustic Noise: 65 dBA maximum at 0% to 50% load, 75 dBA maximum greater than
50% load to 100% load. Measured at one meter.
Safety:Designed to meet UL3111 and EN61010-1 European safety standards
as required for the “CE” mark.
2.5 Front Panel Controls
Controls:
Shuttle knobs:
Allows continuous change of Voltage, Frequency and Current limit.
Function keys:
Controls Output state, Voltage range and Display mode.

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Displays:
Displays:
Two, 4 digits, 0.5” LCD display. For viewing programmed
voltage, frequency and current limit. For displaying measured
current.
Status indicators:
6 LEDs to indicate:
REMOTE, FAULT, OUTPUT (ON/OFF), VOLTAGE RANGE,
FREQUENCY or CURRENT DISPLAY MODE (Refer to paragraph
4.1.2).

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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.
3.2 Power Requirements
The AC Power System has been designed to operate from a single phase AC line voltage.
The nominal operating voltage is from 100V to 240V line input.
Figure 3-1: The 801P/1001P/1251P AC Power Source
WARNING: Do not connect the unit to a 400-480 service as the result will be a
severely damaged unit.
3.3 Mechanical Installation
The AC Source is a completely self contained power unit. It can be used free standing on a
bench. The unit is fan cooled, drawing air in from the rear and exhausting at the sides. The
sides of the unit must be kept clear of obstruction and a 6 inch clearance must be maintained
to the rear.
3.4 Input Wiring
The AC Source is designed to work from a single utility supply. The IEC 320 input connector
will accept a standard IEC line cord with the appropriate mating connector for the utility outlet.
The utility outlet must be properly grounded and be capable of supplying 1725 VA at nominal
voltage for the 1251P and 1425 VA for the 1001P and 1140 VA for the 801P.

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Figure 3-2: 1251RP Rear Panel View
3.5 Output Connections
3.5.1 Output Wiring
When the low voltage range is selected , only the duplex US NEMA 5-15P output socket will
be active. If the high voltage range is selected, only the European CEE7/7 socket will be
active.
Note: Do not connect these outputs together as this will cause the unit to fault.

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3.6 Output Voltage Ranges
The AC power source has two standard output voltage ranges 0-135V and 0-270V. The
operator may switch from one range to the other at will with no special precautions except to
remember that the output voltage will go to zero voltage whenever a range change takes place.
Note: The output changes to the other socket on front panel with a range change.
3.7 Functional Test
CAUTION: Work carefully when performing these test, hazardous voltages are
present on the input and output during this test..
Refer to Figure 3-3for the test set up.
1. Connect an oscilloscope, voltmeter and/or distortion analyzer to the AC source output at
the 135 Volt output terminal.
2. Connect the AC power input voltage connections to the AC source input terminals. Turn
on the power switch located at the rear panel.
3. Verify that the front panel LCD display reads out the initial start up voltage and frequency.
4. Select the low voltage range. Set the frequency to 60 Hz with the right shuttle. Select the
current function with the Frequency/Current selector. Set the current limit to the maximum
value using the right shuttle. Set the output voltage to 135V with the left shuttle.
5. Enable the output by pressing the output “on/off” button in the top right of the front panel.
The green LED above the button will illuminate when the output is on. The output should
be a clean 135 volt AC sinewave having less than 1% distortion.
6. Apply full load (refer to table on Figure 3-3) to the output of the source and verify the output
remains within 2% of the initial 135 volt value. The output should still be clean and the
distortion should still be less than 1% at 60 Hz.
7. Using the right shuttle set the output current limit value to 6 amps. The system should go
into current limit and give an error message on the display (err. -300) that indicates an
output fault condition and the output will go off. Return the current value to the maximum
current and disconnect the load.
8. Repeat steps 4 through 7 but set the output for the following: Hi voltage range and the
current limit to maximum value. The output load should be connected to the Hi range
output connector. The load value is shown in Figure 3-3, for the 270 volt output.
Note: Output connectors must be changed when changing voltage ranges.