Pacific Power Source UPC-32 User manual

UPC-32 / UPC-12
PROGRAMMABLE CONTROLLERS
FIRMWARE V5.22 AND LATER
OPERATION
MANUAL
PACIFIC
POWER SOURCE


UPC-32
UPC-12
OPERATION MANUAL
PPS PART NO. 133620
THE INFORMATION CONTAINED IN THIS MANUAL
IS PROPRIETARY TO PACIFIC POWER SOURCE, INC. (PPS)
AND MAY NOT BE COPIED OR REPRINTED
WITHOUT ITS EXPRESSED WRITTEN CONSENT.
PACIFIC POWER SOURCE, INC.
17692 Fitch
Irvine, CALIF. 92614
FIFTH EDITION
COPYRIGHT (C) PPS February, 2015.

CERTIFICATION
PACIFIC POWER SOURCE CERTIFIES THAT THIS INSTRUMENT WAS THOROUGHLYTESTEDAND
INSPECTED AND FOUND TO MEET OR EXCEED ITS PUBLISHED SPECIFICATIONS WHEN IT WAS
SHIPPED FROM THE FACTORY.
LIMITED WARRANTY
Pacific Power Source (PPS) warrants each unit to be free from defects in material and workmanship. For
the period of two (2) years from the date of shipment to the purchaser, PPS will eitherrepair or replace,at its
sole discretion, anyunit returned to its factoryin Irvine, California. This warranty does notcoverbatteries. It
does not cover damage arising from misuse of the unit or attempted field modifications or repairs. This
warranty specifically excludes damage to other equipment connected to this unit.
Upon notice from the purchaser within (30) days of shipment of units found to be defective in material or
workmanship, PPS will pay all shipping charges for the repair or replacement. If notice is received more
than thirty (30) days from shipment, all shipping charges shall be paid bythe purchaser. Units returned on
debit memos will not be accepted and will be returned without repair.
This warranty is exclusive of all other warranties, express or implied.

i
TABLE OF CONTENTS
PAGE
HOW TO... FRONT PANEL REFERENCE................................... v
REMOTE INTERFACE FUNCTION REFERENCE ............................ vi
1GENERAL....................................................... 1
1.1 USING THIS MANUAL........................................... 1
1.2 SAFETY NOTICES ............................................. 1
1.3 GENERAL PRODUCT DESCRIPTION ............................... 4
1.3.1 UPC DESCRIPTION ......................................... 4
1.3.2 CONTROLLER MODELS...................................... 6
1.3.3 SCU DESCRIPTION ......................................... 6
2SPECIFICATIONS................................................. 7
2.1 CONTROL SPECIFICATIONS ..................................... 7
2.1.1 FREQUENCY CONTROL SPECIFICATIONS ....................... 7
2.1.2 VOLTAGE CONTROL SPECIFICATIONS.......................... 7
2.1.3 CURRENT LIMIT CONTROL SPECIFICATIONS..................... 9
2.1.4 CURRENT PROTECTION CONTROL SPECIFICATIONS .............. 9
2.1.5 WAVEFORM CONTROL SPECIFICATIONS ........................ 9
2.1.6 OUTPUT POWER FORM CONTROL SPECIFICATIONS.............. 11
2.1.7 PHASE ANGLE CONTROL SPECIFICATIONS..................... 11
2.1.8 WAVEFORM SYNTHESIS SPECIFICATIONS...................... 11
2.2 METERING SPECIFICATIONS.................................... 12
2.2.1 VOLTMETER SPECIFICATIONS ............................... 12
2.2.2 AMMETER SPECIFICATIONS ................................. 12
2.2.3 kVA METER SPECIFICATIONS ................................ 12
2.2.4 KILOWATT METER SPECIFICATIONS .......................... 12
2.2.5 POWER FACTOR METER SPECIFICATIONS ..................... 13
2.2.6 FREQUENCY DISPLAY SPECIFICATIONS ....................... 13
2.2.7 WAVEFORM ANALYSIS (Option: Harmonic Analysis and Synthesis) .. 13
2.3 ELECTRICAL INTERFACE ...................................... 14
2.3.1 ISOLATION............................................... 14
2.3.2 INPUT POWER ............................................ 14
2.3.3 ANALOG OUTPUTS ........................................ 14
2.3.4 OUTPUT CONTROL ........................................ 14
2.3.5 OUTPUT CONFIRMATIONS................................... 14
2.3.6 ANALOG INPUTS .......................................... 16
2.3.7 DIGITAL OUTPUTS......................................... 16
2.3.8 METERING INPUTS ........................................ 18
2.4 GPIB REMOTE INTERFACE ..................................... 19

ii
TABLE OF CONTENTS
PAGE
3INSTALLATION.................................................. 20
3.1 REMOVE INPUT SERVICE ...................................... 21
3.2 REMOVE COVER AND CABLING ................................. 21
3.3 REMOVE EXISTING CONTROLLER ............................... 21
3.4 CONFIGURE UPC ............................................. 21
3.4.1 CONFIGURE TRANSFORMER RATIO ........................... 21
3.4.2 CONFIGURE AMPS TO VOLTS RATIO .......................... 22
3.4.3 CONFIGURE GPIB DEVICE ADDRESS .......................... 23
3.4.4 CONFIGURE MISCELLANEOUS SETTINGS ...................... 23
3.5 INSTALL UPC ................................................ 25
3.6 INSTALL CABLING AND COVER ................................. 25
3.7 CONNECT INPUT SERVICE ..................................... 25
4FRONT PANEL OPERATION........................................ 27
4.1 GUIDE TO OPERATION ........................................ 27
4.1.1 OVERVIEW ............................................... 27
4.1.2 BASIC OPERATION ........................................ 29
4.2 FRONT PANEL CONTROLS AND INDICATORS ...................... 31
4.2.1 POWER SOURCE FRONT PANEL.............................. 31
4.2.2 UPC FRONT PANEL ........................................ 32
4.3 MANUAL MODE .............................................. 33
4.3.1 METERING DISPLAYS ...................................... 33
4.3.2 VOLTAGE ENTRY.......................................... 36
4.3.3 FREQUENCY CONTROL..................................... 36
4.4 PROGRAM OPERATE MODE .................................... 36
4.4.1 PROGRAM EXECUTION ..................................... 37
4.4.2 TRANSIENT EXECUTION .................................... 37
4.5 PROGRAM EDIT MODE......................................... 40
4.5.1 PROGRAM EDITING ........................................ 40
4.5.2 TRANSIENT EDITING ....................................... 44
4.6 SETUP MODE ................................................ 53
4.6.1 PROGRAM SETUP ......................................... 53
4.6.2 WAVEFORM SETUP ........................................ 55
4.6.3 GENERAL SETUP.......................................... 59

iii
TABLE OF CONTENTS
PAGE
5GPIB and SERIAL REMOTE OPERATION.............................. 67
5.1 INTRODUCTION .............................................. 67
5.2 CONVENTIONS............................................... 68
5.3 PROGRAM CONTROL.......................................... 70
5.3.1 STEADY-STATE OUTPUT PARAMETERS ........................ 71
5.3.2 TRANSIENT SEGMENT PARAMETERS.......................... 72
5.3.3 PROGRAM MEMORY CONTROL............................... 73
5.4 SIGNAL CONTROL ............................................ 73
5.4.1 OUTPUT PARAMETERS ..................................... 73
5.4.2 SIGNAL ROUTING ......................................... 76
5.4.3 WAVEFORM CONTROL ..................................... 77
5.5 QUERY FUNCTIONS........................................... 77
5.5.1 CONFIGURATION QUERIES .................................. 77
5.5.2 METERED DATA QUERIES................................... 78
5.5.3 EVENT and STATUS REPORTING ............................. 81
5.6 DEVICE CONTROL ............................................ 87
5.6.1 IEEE-488.1 INTERFACE FUNCTIONS ........................... 88
5.6.2 IEEE-488.2 DEVICE CONTROL COMMANDS ..................... 89
5.7 REMOTE CONTROL EXAMPLES ................................. 90
5.7.1 EXAMPLE OF STORING A PROGRAM .......................... 91
5.7.2 EXAMPLE OF PROGRAM QUERY.............................. 92
5.7.3 EXAMPLE OF EXECUTING A STORED PROGRAM................. 93
5.7.4 EXAMPLE OF EXECUTING A STORED PROGRAM TRANSIENT....... 93
5.7.5 EXAMPLE OF DIRECTLY CHANGING THE OUTPUT PARAMETERS.... 93
5.7.6 EXAMPLE OF VOLTAGE and CURRENT MEASUREMENT QUERY..... 94
5.7.7 EXAMPLE OF VOLTAGE and CURRENT WAVEFORM QUERY........ 94
6MAINTENANCE ................................................. 95
7SERVICE ...................................................... 96
8CALIBRATION .................................................. 97
8.1 CALIBRATION INTERVAL....................................... 97
8.1.1 TEST EQUIPMENT REQUIREMENTS ........................... 97
8.2 MANUAL CALIBRATION PROCEDURE ............................. 97
8.2.1 OSCILLATOR GAIN CALIBRATION............................. 98
8.2.2 PROGRAMMABLE CURRENT LIMIT CALIBRATION ............... 100
8.2.3 OUTPUT VOLTMETER CALIBRATION ......................... 100
8.3 EXTERNALLY REFERENCED CALIBRATION ....................... 100
8.3.1 K FACTOR DISPLAY....................................... 103
8.3.2 RESET ALL KFACTORS .................................... 103

iv
TABLE OF CONTENTS
PAGE
9USER DIAGNOSTICS ............................................ 104
10 SERIAL REMOTE INTERFACE OPTION ............................. 108
10.1 GENERAL .................................................. 108
10.2 SERIAL PORT SPECIFICATIONS................................. 108
10.3 INSTALLATION .............................................. 109
10.4 SETUP..................................................... 109
10.5 OPERATION ................................................ 109
10.5.1 COMMUNICATION MONITORING AID .......................... 109
10.5.2 FUNCTIONAL EXCEPTIONS ................................. 110
10.5.3 FUNCTIONAL ADDITIONS................................... 110
10.6 TESTING THE SERIAL REMOTE INTERFACE....................... 110
10.7 PHYSICAL CONNECTIONS..................................... 111
INDEX ........................................................... 112
NOTES .......................................................... 117
MODIFICATIONS................................................... 118
LIST OF ILLUSTRATIONS
FIGURE 1.3 SCU/UPC-32, SCU/UPC-12 .............................................................................................5
FIGURE 2.3.3 J3 CONTROL AND OSCILLATOR.................................................................................17
FIGURE 2.3.6 J5 AUXILIARY INPUTS AND OUTPUTS .......................................................................19
FIGURE 2.3.8 J2 METERING INPUTS..................................................................................................20
FIGURE 2.4 J4 GPIB REMOTE INTERFACE.....................................................................................21
FIGURE 3.4.1 TRANSFORMER AND AMPS TO VOLTS RATIO DIP-SWITCH...................................26
FIGURE 3.4.4 UPC INTERFACE DIP-SWITCH ....................................................................................26
FIGURE 3.5 INSTALLATION...............................................................................................................28
FIGURE 4.1 POWER SOURCE FRONT PANEL................................................................................33
FIGURE 4.5.2.1 MIL-STD-704D UNDERVOLTAGE TRANSIENT............................................................58
FIGURE 4.5.2.2 SPIKE TRANSIENT........................................................................................................58
FIGURE 4.6.2.1 EDITED WAVEFORM.....................................................................................................64
FIGURE 5.1 STATUS BYTE MODEL..................................................................................................91
FIGURE 5.2 STANDARD EVENT REGISTER MODEL......................................................................92
FIGURE 5.3 SCPI STATUS REGISTERS MODEL.............................................................................95
FIGURE 8.2 GAIN CONTROL LOCATIONS.....................................................................................109

v
HOW TO... FRONT PANEL REFERENCE
This is a quick reference to commonly used FRONT PANEL functions and will aid the user in quickly
learning how to use functions of interest.
HOW TO SECTION
CALIBRATE METERS
8.3
CALIBRATE PROGRAMMABLE OUTPUT IMPEDANCE
4.6.3.1.1
CHANGE OPERATING MODES
4.1.1
CLOSE / OPEN OUTPUT CONTACTOR
4.1.2 steps 6,7
COPY A WAVEFORM
4.6.2.2
COPY A PROGRAM
4.6.1.1
CREATE A TIME BASED TRANSIENT
4.5.2.1
CREATE A CYCLE BASED TRANSIENT
4.5.2.2
CREATE A PROGRAM
4.5.1.1
DELETE A PROGRAM
4.6.1.2
EDIT A WAVEFORM
4.6.2.1
EDIT A PROGRAM
4.5.1
EDIT A TRANSIENT
4.5.2
ERASE ALL RAM AND RESET CPU
4.6.1.4
EXECUTE A PROGRAM
4.4.1
EXECUTE A TRANSIENT
4.4.2
INITIALIZE PROGRAMS, WAVEFORMS, SETUP
4.6.1.3
QUICKLY PUT THE UNIT TO USE
4.1.2
READ HARMONIC SPECTRUM
4.3.1
READ OUTPUT POWER
4.3.1
READ OUTPUT POWER FACTOR
4.3.1
READ OUTPUT CURRENT CREST FACTOR
4.3.1
READ OUTPUT VOLTAGE
4.3.1
READ OUTPUT FREQUENCY (INDICATOR)
4.3.1
READ OUTPUT CURRENT
4.3.1
SELECT LOCAL or REMOTE OPERATION
5.1
SELECT METERING SENSE POINT (INTERNAL,EXTERNAL)
4.6.3.1
SET CSC (CONTINUOUS SELF CALIBRATION)
4.6.3.1
SET BAUD RATE FOR SERIAL INTERFACE
10.4
SET DISPLAY BACKLIGHT INTENSITY
4.6.3.2
SET DISPLAY VIEW ANGLE
4.6.3.2
SET GPIB DEVICE ADDRESS
4.6.3.3
SET MIN/MAX FREQUENCY RANGE
4.6.3.1
SET OUTPUT POWER FORM
4.5.1.1
SET OUTPUT CURRENT LIMIT
4.5.1.1
SET OUTPUT PHASE ANGLES
4.5.1.1
SET OUTPUT COUPLING (XFMR OR DIRECT)
4.5.1.1
SET OUTPUT FREQUENCY
4.1.2, 4.3.3, 4.5.1.1
SET FREQUENCY LIMITS
4.6.3.1
SET OUTPUT VOLTAGE
4.1.2, 4.3.2, 4.5.1.1
SET VOLTAGE LIMITS
4.6.3.1
SET OUTPUT WAVEFORM
4.5.1.1
SET PROGRAMMABLE OUTPUT IMPEDANCE
4.6.3.1
SET SLEW RATES
4.6.3.6
SET TRANSITION TIME
4.6.3.1

vi
REMOTE INTERFACE FUNCTION REFERENCE
This is a quick reference to commonly used REMOTE INTERFACE functions and will aid the user in
quickly finding the functions of interest.
FUNCTION SECTION
CALIBRATE METERING
5.6
CALIBRATE PROGRAMMABLE OUTPUT IMPEDANCE
5.4.1
CLOSE / OPEN OUTPUT CONTACTOR
5.7.5
CREATE A PROGRAM
5.3, 5.7.1
CREATE A TIME BASED TRANSIENT
5.3, 5.7.1
CREATE A CYCLE BASED TRANSIENT
5.3, 5.7.1
DELETE A PROGRAM
5.3.3
DOWNLOAD A METERED WAVEFORM - REMOTE INTERFACE
5.7.7
DOWNLOAD / UPLOAD A STORED WAVEFORM REMOTE INT.
5.4.3
ERASE ALL RAM AND RESET CPU
5.3.3
EXECUTE A PROGRAM
5.4.1, 5.7.3
EXECUTE A TRANSIENT
5.4.1, 5.7.4
READ HARMONIC SPECTRUM
5.5.2
READ OUTPUT POWER
5.5.2, 5.7.6
READ OUTPUT POWER FACTOR
5.5.2, 5.7.6
READ OUTPUT CURRENT CREST FACTOR
5.5.2, 5.7.6
READ OUTPUT VOLTAGE
5.5.2, 5.7.6
READ OUTPUT FREQUENCY (INDICATOR)
5.5.2, 5.7.6
READ OUTPUT CURRENT
5.5.2, 5.7.6
SELECT LOCAL or REMOTE OPERATION
5.1
SELECT METERING SENSE POINT (INTERNAL, EXTERNAL)
5.4.2
SET CSC (CONTINUOUS SELF CALIBRATION)
5.4.2
SET GPIB DEVICE ADDRESS
4.6.3.3
SET MIN/MAX FREQUENCY RANGE
5.4.1
SET OUTPUT POWER FORM
5.4.2
SET OUTPUT CURRENT LIMIT
5.4.1
SET OUTPUT PHASE ANGLES
5.4.1
SET OUTPUT COUPLING (XFMR OR DIRECT)
5.4.2
SET OUTPUT FREQUENCY
5.4.1
SET FREQUENCY LIMITS
5.4.1
SET OUTPUT VOLTAGE
5.4.1
SET VOLTAGE LIMITS
5.4.1
SET OUTPUT WAVEFORM
5.4.1
SET PROGRAMMABLE OUTPUT IMPEDANCE
5.4.1
SET TRANSITION TIME
5.4.1

SECTION 1 GENERAL
1
SECTION 1
GENERAL
1 GENERAL
This Operation Manual provides the information required to use a Pacific Power Source Universal
Programmable Controller (UPC). Installation, operation, programmable commandsyntax, andcalibration
are covered by this manual.
UPC controllers are typicallycontained within a Power Source chassis. For those UPC installations which
are external to the Power Source, a System Control Unit (SCU) chassis is available to house the UPC
controller. This SCU chassis is also described in this manual.
This manual is to be used with either the UPC32 or UPC12 controller.
1.1 USING THIS MANUAL
It is very important to read SECTION 4, FRONT PANEL OPERATION, prior to using this equipment. A
thorough understanding of that information is required to properlyandsafelyoperate this equipment. If the
UPC will be used under REMOTE CONTROL, via GPIB or serial port, then also read SECTION 5, GPIB
and REMOTE OPERATION. If the optional Serial Interface is to be used, read SECTION 10, SERIAL
REMOTE INTERFACE OPTION.
To simplify operation, please note these helpful references:
oPage v –Front Panel Reference
oPage vi –Remote Interface Function Reference
oPage 28 –Front Panel Operation
Quick Overview (4.1.1)
Quickly Putting the Unit to Use (4.1.2)
oPage 70 –Program Control
1.2 SAFETY NOTICES
The UPC-Series of equipment controls the Pacific Power Source, AMX, ASX, MS, and G Series of power
sources which are capable of transferring very large amounts of electrical energyveryquickly. This basic
quality is fundamental to any high-performance power source. The warnings and cautions listed below
should be observed at all times.
WARNINGSindicate potentiallyhazardous situationswhich,ifnot avoided,couldcauseseriousinjuryor
death. All warnings throughout this manual will be formatted as shown on the following page. A condition
which is hazardous to both personnel and equipment will be issued as a warning.
CAUTIONstatements indicate a potentiallyhazardous situation which, if not avoided, may cause minor
or moderate injury or damage to the equipment. Cautions will assume the format shown. All cautions
should be rigorously observed.

SECTION 1 GENERAL
2
1.2 SAFETY NOTICES (continued)
WARNING
THIS EQUIPMENT CONTAINS HIGH ENERGY, LOW IMPEDANCE CIRCUITS!! LETHAL
POTENTIALS ARE CONTAINED WITHIN THE CABINET.
CARE MUST BE EXERCISED WHEN SERVICING THIS EQUIPMENT IN ORDER TO PREVENT
SERIOUS OPERATOR INJURY OR EQUIPMENT DAMAGE.
VOLTAGE AT THE TERMINALS RESPONDS INSTANTLY WHEN THE OUTPUT IS ACTIVATED.
OBSERVE THE FOLLOWING WHEN SERVICE, MAINTENANCE, OR CALIBRATION ARE
REQUIRED:
1) REMOVE ALL JEWELRY FROM HANDS, ARMS AND NECK WHEN SERVICING THIS
EQUIPMENT. THIS PREVENTS THE POSSIBILITY OF SHORTING THROUGH THE
JEWELRY AND CAUSING BURNS OR ELECTROCUTION OF THE OPERATOR.
2) WEAR SAFETY GLASSES WHEN SERVICING THIS EQUIPMENT TO PREVENT EYE
INJURY DUE TO FLYING PARTICLES CAUSED BY ACCIDENTAL SHORT CIRCUIT
CONDITIONS.
3) DO NOT REMOVE ANY PANEL OR COVER WITHOUT FIRST REMOVING THE INPUT
SERVICE BY OPENING ALL CIRCUIT BREAKERS.
SERVICE OTHER THAN EXTERNAL CLEANING SHOULD BE REFERRED TO PERSONNEL
AUTHORIZED BY THE FACTORY TO SERVICE THIS EQUIPMENT.
WARNING
IF THIS EQUIPMENT IS NOT USED IN A MANNER SPECIFIED BY THE MANUFACTURER, THE
PROTECTION PROVIDED BY THE EQUIPMENT MAY BE IMPAIRED

SECTION 1 GENERAL
3
1.2 SAFETY NOTICES (continued)
To protect equipment from damage, a Caution will be used as follows:
CAUTION
USING IMPROPER GAUGE OF INPUT CABLE MAY OVERHEAT AND DAMAGE THE
EQUIPMENT.
SEE SECTION 2.0, SPECIFICATIONS, FOR THE PROPER RATING OF INPUT CABLE.
ALWAYS MAKE SURE THAT THE OUTPUT ON/OFF SWITCH
IS IN THE OFF POSITION BEFORE CHANGING
THE OUTPUT COUPLING MODE.
LOADS MAY BE DAMAGED DUE TO EXCESSIVE OUTPUT VOLTAGE
CAUTION
Read Section 3, INSTALLATION
Section 4, OPERATION
Section 7, SERVICE
of this manual before installing or operating this equipment.

SECTION 1 GENERAL
4
1.3 GENERAL PRODUCT DESCRIPTION
1.3.1 UPC DESCRIPTION
The UPC controller is a highly versatile one, two, or three phase signal generator. It is designed to be
installed into Pacific Power Source's AMX/ASX Series Power SourcesorintoaSystemControlUnit (SCU)
for use with other power sources, and is interchangeable with other UPC/UMC Series controllers.
The user may store up to 99 “Programs” in the UPC memory. Each program contains steady-state
parameters and may include transient values as well. There are also pre-stored programs that simplify
generation of MIL-STD 704D transients.
Auxiliaryand Modulation inputs are provided to allow control of the power source output from a varietyof
external control sources. The AUX inputs will acceptsignals from a waveform generator. The AM inputs
allow control of the output amplitude by varying a control voltage.
The signal generator section produces one (UPC-12) or three (UPC-32) signals representing the output
waveforms of the power source. The UPC controllers produce steady-state signals - a base set of volts,
frequency, waveforms and phase angle - and dynamic signals which change with time. The signal
generator of a UPC can produce transient events lasting from microseconds to hours.
Each signal can be any of the 16 waveforms stored in memory.
Waveform 1 is a sine wave and cannot be altered; the other 15 waveforms can be altered by the
user to produce any arbitrary wave function.
The phase angle relation between the three output vectors may be varied.
The amplitude of each vector may be varied together or independently.
The frequency of all output vectors is the same and is controllable from 20 to 5000 Hz.
The Display of the UPC utilizes a 160 character Backlit LCD, which selectively meters operating
parameters or displays menus which interactively prompt the operator and assist in loading programs or
editing. On completion of any programming or editing function, the display automatically reverts to the
metering display.
Complete parameter metering is provided by the UPC. Output volts (line-to-line and line-to-neutral),
current (true RMS, peak, and crest factor), KVA, KW, and PowerFactorcan allbe displayed. Frequencyis
indicated based on the set value. Internal or External voltage metering sense points can be selected.
Internal metering displays the output voltage as metered at a point prior to the Output Relays. This allows
the output voltage to be checked prior to applying power to a load. External metering allows the output
voltage to be monitored at a remote point outside of the power source. With CSC enabled (see below),
external sense can be used to maintain an accurate voltage at any remote point, compensating for line
voltage drops.
The CSC (Continuous Self Calibration) feature provides automatic compensation for real losses due to
output transformers and distribution lines bymaintaining an accurateCOMMAND(program)voltage atthe
metered sense point. CSC may be enabled or disabled at the user's discretion.
Externally referenced Metering calibration is simplified by internal software that allows external
measurements to be entered directly into the front panel or Remote Interface. Correction values
(kFactors) are then calculated and stored in the UPC's memory.
An output transformer ratio may be programmedintotheUPCfor controlling andmetering voltages greater
than the power source direct coupled range.

SECTION 1 GENERAL
5
PACIFIC
Figure 1.3a SCU/UPC-32
Figure 1.3b UPC-32
Figure 1.3c UPC-12

SECTION 1 GENERAL
6
1.3.1 UPC DESCRIPTION (continued)
A Programmable Current limit value can be set.
A unique control feature available within the UPC is TRANSITION TIME (4.6.3.1, 5.4.1). WhenTransition
Time is set to a non-zero value (0 to 300 Sec. in increments as small as 200 uS), any change of the
voltage or frequency, whether by executing a new Program or by Manual or Remote command, will take
the specified time to transition to the new voltage and frequency. This is useful when abrupt changes to
the output power signal are undesireable. This feature does not affect transient operation.
Waveform analysis functions can be optionallyprovided to reportbothmagnitudeand phaseangleof each
harmonic for metered voltage and current waveforms. THD, ODD and EVEN harmonic distortion
measurement data is also reported.
The Programmable Outpout Impedance option (ProgZo), also known as Current Compensation,provides
the abilityto compensate for dynamic losses in the output circuit bycontrolling theoutputimpedance of the
power source and responding in real-time to changes in the output current.
The UPC may be used in Local (front panel) or Remote (GPIB or SERIAL) control. The GPIB interface is
IEEE-488.1, IEEE-488.2 and SCPI compatible. A Serial portinterfaceis availableas an alternativeremote
interface and commands are IEEE-488.2 and SCPI format compatible.
Metered voltage and current digitized waveform data can be retrieved via the remote interface.
1.3.2 CONTROLLER MODELS
The term 'UPC' is derived from Universal Programmable Controller.
The UPC-32 is a 3 phase (Ф)signal generator designed to operate any PACIFIC power source which is
1Ф/ 2Ф/ 3Фcapable.
The UPC-12 is identical in characteristics to the UPC-32, except that it produces onlyone output signal. It
is designed to plug in to any single-phase-only PACIFIC AMX or ASX model power source.
1.3.3 SCU DESCRIPTION
The System Control Unit is a 19” W x 5.25”H x 7” D (48.26cm x 13.33cm x 17.78cm) rack-mount style
chassis with a power supplyand connector interfaces, to support a UPC. This allows the UPC to operate
independently from the power source.
The SCU provides a suitable housing for the controller for applications requiring a controller remotely
located from the power source. The complete designationfora"stand-alone"controllerhousinga UPC-32
is SCU/UPC-32. Such a unit can drive some of the larger PACIFIC power sources through their remote
interface. A typical usage might be: to locate the power source at the base of an instrument rack, with the
controller installed in an upper slot at a more convenienteye levelorevenin acompletelydifferent location.

SECTION 2 SPECIFICATIONS
7
SECTION 2
SPECIFICATIONS
2 SPECIFICATIONS
This section states the specifications of both Output Control and Metering capabilities of the UPC.
UPC-12 is assembly number: 133700
UPC-32 is assembly number: 133600
Environmental Ambient operating conditions are: Temperature: 0-50°C.
Humidity: 0-95% R.H Non-Condensing.
2.1 CONTROL SPECIFICATIONS
A unique control feature available within the UPC is TRANSITION TIME (4.6.3.1, 5.4.1). WhenTransition
Time is set to a non-zero value (0 to 300 Sec. in increments as small as 200 uS), any change of the
voltage or frequency, whether by executing a new Program or by Manual or Remote command, will take
the specified time to transition to the new voltage and frequency. This is useful when abrupt changes to
the output power signal are undesireable. This feature does not affect transient operation.
2.1.1 FREQUENCY CONTROL SPECIFICATIONS
The UPC output frequency is variable from 20 to 5000 Hz. Internally, there are 3 frequencyranges, each
with a different resolution. The user need NOT be concerned with changing these ranges as the UPC
auto-ranges based on the selected frequency.
RANGE
RESOLUTION
20.00 - 99.99 Hz
0.01 Hz
100.0 - 999.9 Hz
0.1 Hz
1000 –5000 Hz
1.0 Hz
Accuracy is ±0.01% of full scale over the full range of ambient conditions.
2.1.2 VOLTAGE CONTROL SPECIFICATIONS
The voltage amplitude of each vector can be varied independently.
There are two output coupling modes selectable in the stored programs of the UPC.
1) DIRECT COUPLED MODE:
Range:
0 to 150 VAC rms
Resolution:
0.1 volts
Output Ratio:
1.0 (This mode is internally fixed)
2) TRANSFORMER COUPLED MODE:
Range:
0 to (150 x XFMR RATIO) VAC rms (maximum of 600 volts)
Resolution:
Dependent upon the TRANSFORMER RATIO as described below.
This allows for a possible output voltage of up to 375 VAC rms line-
neutral, using an output TRANSFORMER RATIO of 2.5.
The voltage range available at any time is calculated by the UPC and accounts for the set Transformer
Ratio (3.7.1, 4.6.3.3). The power source will produce the correct amplitude signal and does NOT require
the user to perform any calculations to determine output voltage dependant upon the transformer ratio.

SECTION 2 SPECIFICATIONS
8
2.1.2 VOLTAGE CONTROL SPECIFICATIONS (continued)
The UPC allows the Power Source to use any output TRANSFORMER RATIO from 0.01 to 5.11. Voltage
resolution for TRANSFORMER COUPLED MODE is as follows:
XFMR RATIO
Vresolution
.01 - 1.00
0.1 VAC rms
1.01 - 5.11
0.5 VAC rms
The default ratio is set by the TRANSFORMER RATIO SWITCH on the UPC METERING PCB (3.4.1).
The default value may be overridden by entering a new value in the UPC STATUS screen and in the
program to be executed. The power source must have an output transformer configured with the same
ratio as presently set for this feature to work properly.
TRANSFORMER RATIOs greater than 1.0 are step-up types.
TRANSFORMER RATIOs less than 1.0 are step-down types.
Accuracy is ± 0.5% of full scale over the range of ambient conditions with CSC disabled.
Accuracy is ± 0.05% of the voltage referenced to the internal voltmeter with CSC enabled.
NOTE: TRANSFORMER RATIO is implied as a ratio to one, e.g.; a ratio of 2.5 is a ratio of 2.5:1.
NOTE: The above voltages are power source output voltages. The UPC actually produces an RMS
voltage equal to (Power source output Vrms / 25 / TRANSFORMER RATIO). The SCU provides this type
of low voltage output at the rear panel connector, to be fed into a power source.
2.1.2.1 CSC (CONTINUOUS SELF CALIBRATION) SPECIFICATIONS
The UPC includes a user selectable “Continuous Self Calibration” function. When active, this function
maintains an accurate output voltage amplitude at the metering sense point, comparing the metered
voltage at that point to the set value and correcting for any difference. Accurate calibration of the voltage
metering function is essential for CSC to operate accurately.
When INT SENSE is chosen, CSC attempts to precisely maintainaccurateCOMMAND(Program) voltage
at the input side of the Output Relay of the power source.
To compensate for load voltage drops due to distribution losses, CSC can be effectively used tomaintain
COMMAND (Program) voltage very precisely at the load by selecting EXT sense with sense leads
connected at the load and having CSC enabled.
Basic properties of the CSC function are:
1. Voltage level held to ± 0.05% of the program voltage referencedtothe internalvoltmeter withCSC
enabled.
2. Response time varies anywhere from 1 mSec. to 300 mSec. and onlyresponds while the UPC is
metering, not while in Program Edit or Setup mode.
3. CSC operates independentlyof selected waveform, does not increase distortionandis stableinto
any PF load.
4. Automatically switches between internal and remote voltage sensing as the metering function is
switched between INT and EXT.
5. CSC does NOT function during Transients or Transition Time functions.
6. CSC will only correct the Output Voltage by ± 15%. If the sense voltage is not within ± 15% of the
COMMAND voltage, CSC will become disabled until the Output Voltage is within ± 15% of the
COMMAND voltage. Each phase operates independently.

SECTION 2 SPECIFICATIONS
9
2.1.3 CURRENT LIMIT CONTROL SPECIFICATIONS
Current limit is provided for all phases through a single RMS current value. The range of this value is
equal to the ammeter range, as set bythe AMPS TO VOLTS RATIO (2.2.2). This function is an average
responding, RMS-programmed function with a response time of approximately 100 mSec.
Range:
Amps to Volts ratio x 10 (divide by 3 for 3Фpower form)
(divide by 1.5 for single phase power sources containing 2 power amplifiers).
Resolution:
Range/2000 (.05%)
Accuracy:
±1% of full scale over the full range of ambient conditions
2.1.4 CURRENT PROTECTION CONTROL SPECIFICATIONS
CURRENT PROTECTION offers the ability to disconnect power from a load if the current exceeds a set
value. A time delay setting is also provided to minimize nuisance disconnects due to momentarycurrent
surge. When the CURRENT PROTECTION feature is enabled, the power source will normallyoperatein
constant voltage mode. If the load current exceeds the set Current Protect limit (IprA) for a time interval
that exceeds the protection delaysetting (IprT), then the power source will generate a fault condition and
the output relay will open, disconnecting the load. An error message will be displayed when this event
occurs.
ThresholdLevel:
Range:
Amps-to-Volts ratio x 10
Divide by 3 for 3 phase output form
Divide by 1.5 for 1 phase power source with 2 amplifiers
Resolution:
0.05% of full scale current
Accuracy:
±0.2% of full scale + Calibration Reference
Delay Time:
Range:
1 –65535 (0.1 seconds –109.22 minutes)
Resolution:
0.1 seconds (1 count = 0.1 second)
Accuracy:
±100 milliseconds
2.1.5 WAVEFORM CONTROL SPECIFICATIONS
The standard hardware configuration supports 16 waveforms with anoption to store 128. There are also
16 pre-stored waveforms in the UPC EPROM which are available to initialize the 16 waveforms stored in
RAM. Each output phase is generated by one of the 16 waveforms stored in RAM.
Waveform 1 is always a Sine wave and cannot be changed. Waveforms 2-16 are editable. Waveforms
17-32 are pre-stored in the CPU EPROM. Waveforms 2-16 maybe individuallyedited, or loadedfrom the
pre-stored waveforms (17-32) by copying, allowing creation of almost any waveform with the UPC,
including sub-cycle transients. See (4.5.2.2) for an example of creating a cycle-based transient that
performs waveform substitution for 1 cycle.
Each output phase may be independently generated from a separate waveform by creating a stored
program and specifying the waveform number for each phase within that program.
If the ERASE ALL RAM AND RESET CPU function is selected, waveforms 17 - 32 are subsequently
copied (as defaults) to waveforms 1-16 respectively as:

SECTION 2 SPECIFICATIONS
10
2.1.5 WAVEFORM CONTROL SPECIFICATIONS (continued)
EDITABLE
WAVEFORM #
EPROM
WAVEFORM #
DESCRIPTION
1
17
SINE WAVE
2
18
TRIANGLE - 12.1% THD
3
19
SQUARE - 47.1% THD
4
20
PULSE (30° WIDTH) - 153% Avg. THD
5
21
FLAT TOP - 5% THD (PK:RMS=1.309)
6
22
FLAT TOP - 6% THD (PK:RMS=1.295)
7
23
FLAT TOP - 7% THD (PK:RMS=1.282)
8
24
FLAT TOP - 8% THD (PK:RMS=1.269)
9
25
FLAT TOP - 9% THD (PK:RMS=1.257)
10
26
FLAT TOP - 10% THD (PK:RMS=1.246)
11
27
FLAT TOP - 11% THD (PK:RMS=1.235)
12
28
FLAT TOP - 12% THD (PK:RMS=1.225)
13
29
*IEC 77A CLASS 1 - 12.6% THD
14
30
*IEC 77A CLASS 2 - 14.4% THD
15
31
SINE WAVE
16
32
SINE WAVE
*NOTE: IEC 77A (Secretariat) 99 Draft (Sept. 1993)
NOTE: THD is measured as RMS THD with a Distortion Analyzer unless noted above.
Waveform Edit (4.6.2.1) allows modification of existing waveforms, and Waveform Synthesis (Harmonic
Analysis and Synthesis option, (4.6.2.3)) creates waveforms by defining harmonic content.
Waveforms are created using this formula:
WAVEFORM = Σαnsin(nw + δ)n= harmonic number
αn = harmonic amplitude (% of fundamental)
δ= harmonic phase angle
For example, the above formula may use values from the following tables:
Waveform #
Description
THD
n
αn %
δ
1
Sine Wave
0%
1
100
0
13
IEC 77A Class 1
12.6%
1
100
0
3
8
0
5
9
0
7
5
0
11
2
0
13
2
0
14
IEC 77A Class 2
14.4%
1
100
0
3
6
0
5
8
0
7
7
0
11
7
0
13
6
0