Elgar 351 SL User manual

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AC POWER SOURCE
.~
MODEL
351SL/501 SL
OPERATING MANU
ELGAR ELECTR ~ CORPORATION
©1993 by Elgar Electronics Corporation
This document contains information proprietary to Elgar Electronics Corporation. The information contained herein is
not to be duplicated ortransferred in any manner without priorwritten permission from Elgar Electronics Corporation.
March 24, 1993 Document
No. M051015-01 Rev C

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ELGAR TWO-YEAR WARRANTY
Elgar Electronics Corporation (hereinafter referred to as Elgar) warrants its products to be free from defects
in material and workmanship. This warranty is effective for two years from the date of shipment of the
product to the original purchaser. Liability of Elgar under this warranty shall exist provided that:
the Buyer exposes the product to normal use and service and provides normal maintenance on the
product;
Elgar is promptly notified
of defects by the Buyer and that notification occurs within the warranty period;
the Buyer receives a Return Material Authorization (RMA) number from Elgar's Repair Department prior to
the return ofthe product to Elgarfor repair, phone 800-73-ELGAR (800-733-5427), ext. 2295;
the Buyer returns the defective product
in the original, or equivalent, shipping container;
if, upon examination of such product by Elgar it is disclosed that, in fact, a defect in materials and/or
workmanship does exist, that the defect
in the product was not caused by improper conditions, misuse,
or negligence; and,
that Elgar QA seal and nameplates have not been altered or removed and the equipment has not been
repaired
or modified by anyone other than Elgar authorized personnel.
This warranty is exclusive and in lieu of all other warranties, expressed or implied, including, but not limited
to, implied warranties of merchantability and fitness of the product to a particularpurpose. Elgar, its agents,
or representatives shall in no circumstance be liable for any direct, indirect, special, penal, or consequential
loss
or damage of any nature resulting from the malfunction of the product. Remedies under this warranty
are expressly limited to repair
or replacement of the product.
CONDITIONS OF WARRANTY
To return a defective product, contactan Elgar representative or the Elgar factory for an RMA number.
Unauthorized returns will not be accepted and will be returned at the shipper's expense.
For Elgar products found to be defective within thirty days of receipt by the original purchaser, Elgar will
absorb all ground freight charges for the repair. Products found defective within the warranty period, but
beyond the initial thirty-day period, should be returned prepaid to Elgar for repair. Elgarwill repair the unit
and return it by ground freight pre-paid.
Normal warranty service is performed
at Elgarduring the weekday hours of 7:30 am to 4:30 pm Pacific
time. Warranty repair work requested to be accomplished outside
of normal working hours will be subjectto
Elgar non-warranty service rates.
Warranty field service is available on an emergency basis. Travel expenses (travel time, perdiem expense,
and related air fare) are the responsibility
of the Buyer. A Buyer purchase order is required by Elgar prior to
scheduling.
A returned product found, upon inspection by Elgar, to be in specification is subject to an inspection fee and
applicable freight charges.
Equipment purchased
in the United States carries only a United States warranty for which repair must be
accomplished at the Elgarfactory.
Committed to Quality...Striving forExcellence

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SAFETY NOTICE
BEFORE APPLYING POWER to the
System, verify
that the Model 351 SL/
501 SL AC Power Source is properly
configured
for the user's particular
application.
WARNING
Hazardous voltages in excess of 280
V AC, 396V Peak may be present at
the INPUT POWER and OUTPUT
POWER terminal blocks. Qualified
personnel must use EXTREME
CAUTION when configuring or
servicing this equipment. Circuit
boards, test points and output
voltages may also be floating above
(below) chassis ground. Internally, in
addition
to the voltages mentioned
above, DC power supply voltages of
± 50 VDC are present. These DC
voltages are capable of short circuit
currents of up to several hundred
amperes.
Installation and servicing must be
performed by QUALIFIED PERSONNEL
who are aware of properly dealing with
attendant hazards.
Ensure
that the AC power line ground is
properly connected to the Model
351SL/501SL AC Power Source input
terminal. Similarly, other power ground
lines including those to application and
maintenance equipment MUST be
properly grounded for both personnel
and equipment safety.
ii
Always ensure that facility AC input
power
is de-energized prior to
connecting or disconnecting the power
cable. Similarly, the Model 351 SL/
501
SL AC PowerSource circuit breaker
must be switched OFF prior to
connecting or disconnecting output
power.
Always ensure that the input AC power
has been de-energized
when connecting
or disconnecting power or loads at the
rear panel INPUT POWER or OUTPUT
POWER terminal blocks. Ensure that a
power line ground connection
is made
to the INPUT POWER terminal block
when connecting input power.
In normal operation, the operator does
not have access to hazardous voltages
within the chassis. However,
depending on the user's application
configuration, HIGH VOLTAGES
HAZARDOUSTO HUMAN SAFETY may
be normally generated on the output
terminals. The Customer/User must
ensure that the output power (and
sense} lines be properly labeled as to
the SAFETY hazards and any that
inadvertent contact with hazardous
voltages is eliminated.
Guard against risks of electrical shock
during open cover checks by NOT
TOUCHING any portion of the electrical
circuits. Even when power is OFF,
capacitors may retain an electrical
charge. Use SAFETY GLASSES during
open cover checks to avoid personal
injury by any sudden component
failure.

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351 SL/501SL TABLE
OF CONTENTS
Warranty .................................................. i
Safety Notice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ii
Table of Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iii
SECTION I - GENERAL DESCRIPTION
1.1 INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
1.2 SINGLE PHASE UNIT IDENTIFICATION ........................ 1-3
1
.3 SYSTEM CONFIGURATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
1
.4 SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
1.4.1 Model 351 SL Specifications . . . . . . . . . . . . . . . . . . . . . . . . 1-6
1 .4. 1.1 Output Characteristics . . . . . . . . . . . . . . . . . . . . . . . . 1-6
1.4. 1 .2 Input Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
1.4.1.3 ATE Features ............................... 1-7
1.4.1 .4 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8
1.4.2 Model 501SL Specifications ........................ 1-8
1.4.2. 1 Output Characteristics . . . . . . . . . . . . . . . . . . . . . . . . 1-8
1.4.2.2 Input Characteristics .......................... 1-9
1.4.2.3 ATE Features ............................... 1-9
1.4.2.4 General .................................. 1-10
SECTION II -INSTALLATION
2.1 INTRODUCTION ....................................... 2-1
2.2 UNPACKING ....•..................................... 2-1
2.3 PRE-INSTALLATION INSPECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
2.4 OPTIONS ............................................ 2-2
2.4.1 Input Voltages ................................. 2-2
2.4.2 Output Voltages ................................ 2-2
2.4.3 Oscillators .................................... 2-5
2.4.4 Other Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
2.4.4. 1 "- T" Option . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
2.4.4.2 '"-D" Option ................................ 2-5
2.4.4.3 "-S" Option ................................ 2-5
2.4.4.4 Range Change Option . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
2.5 MODEL 351SL/501SL INSTALLATION ....................... 2-12
2.5.1 Input Power Requirements ........................ 2-12
2.5.2 Output Power Connections ........................ 2-12
2.5.3 Sync Out BNC Connectors ........................ 2-12
2.5.4 Installing The Model 351SL/501SL .................. 2-12
2.5.5 Model 351 SL/501SL Preliminary Functional Checkout . . . . . 2-13
iii

351SL/501SL TABLE OF CONTENTS
2.6 SYSTEM INTERCONNECTION ............................. 2-17
2.6.1 Multi-Phase Operation ........................... 2-17
2.6.2 Model 400SR Configuration Switch .................. 2-20
2.6.3 Model 400 Series Plug-In Oscillators ................. 2-22
2.6.3.1 Model 400A .............................. 2-22
2.6.3.2 Model 4008 .............................. 2-22
2.6.3.3 Model 400C .............................. 2-22
2.6.3.4 Model 400DPA ............................ 2-22
2.6.3.5 Model 400DPB ............................ 2-27
2.6.3.6 Model 400DPC ............................ 2-27
2.6.3. 7 Model 400BT ............................. 2-27
2.6.4 Interconnect Diagrams ........................... 2-27
SECTION Ill -OPERATION
3.1 INTRODUCTION ....................................... 3-1
3.2 MANUAL OPERATION ................................... 3-1
3.3 GPIB OPERATION ...................................... 3-1
3.4 CONTROLS AND INDICATORS ............................. 3-1
3.4. 1 Output Voltage Meter . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
3.4.2 Oscillator Cavity ................................ 3-1
3.4.3 POWER On Switch-Circuit Breaker .................... 3-1
3.4.4 POWER On Indicator ............................. 3-1
3.4.5 AMPLITUDE Adjustment Screw ...................... 3-2
3.5 OPERATING INSTRUCTIONS ............................... 3-2
3.5.1 Power ON .................................... 3-2
3.5.2 Frequency Control ............................... 3-2
3.5.3 Amplitude Control ............................... 3-2
LIST OF APPENDIXES
A Wire Gauge Selection . . . . . . . . . . . . . . . . . . . . . . . . . . .......... A-1
B Configuration and Functional Verification Checksheet . . . . . . . . . . . . . .
B-1
iv

351SL/501SL TABLE OF CONTENTS
LIST OF FIGURES
1-1 Power Output Derating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
1-2 Typical Harmonic Distortion . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
1-3 SL Series Single Phase Model Identification Information . . . . . . . . . 1-4
1-4 SL System Multi-Phase Model Identification Information . . . . . . . . 1-5
2-1 Input Voltage Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
2-2 Output Voltage Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
2-3 Output Monitoring Option . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6
2-4 Output Monitoring and 130V/260V Ranging Options . . . . . . . . . . . 2-7
2-5
Output Monitoring and 65V/130V/260V Ranging Options ....... 2-8
2-6 Output Monitoring and
65V/260V Ranging Options ............ 2-9
2-7 Output Monitoring, 130V /260V Ranging, and Output
Connect/Disconnect Options . . . . . . . . . . . . . . . . . . . . . . . 2-1 0
2-8 Model 351SL/501 SL Installation Dimensions . . . . . . . . . . . . . . . 2-14
2-9 Model 351SL/501 SL (Front View) . . . . . . . . . . . . . . . . . . . . . . 2-15
2-1 0 Model 351SL/501 SL (Rear View) . . . . . . . . . . . . . . . . . . . . . . . 2-16
2-11 System Interconnections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-19
2-12 Open Delta Vector Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-20
2-13 Model 400SR Configuration Switch, S1 .................. 2-21
2-14 Model 400A Signal Routing Plug-In Connections . . . . . . . . . . . . . 2-22
2-1 5 Model 4006 Signal Routing Plug-In Connections . . . . . . . . . . . . . 2-23
2-16 Model 400C Signal Routing Plug-In Connections . . . . . . . . . . . . . 2-25
2-17 Model 400DPA Signal Routing Plug-In Connections ........... 2-26
2-18 Model 400DPB Signal Routing Plug-In Connections . . . . . . . . . . . 2-28
2-19 Model 400DPC Signal Routing Plug-In Connections . . . . . . . . . . . 2-29
2-20 Model 400BT Signal Routing Plug-In Connections . . . . . . . . . . . . 2-30
2-21 System Output/Signal Interconnect ...................... 2-31
2-22 System Output/Signal Interconnect With -D Option . . . . . . . . . . . 2-32
LIST OF TABLES
1-1 Multi-Phase System Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
2-1 Model 351SL/501 SL Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11
2-2 1-, 2-, or 3-Phase Using Two or Three AC Power Sources . . . . . . . . . 2-18
v

SECTION I
GENERAL DESCRIPTION

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351 SL/501SL SECTION I -GENERAL DESCRIPTION
1.1 INTRODUCTION
This manual describes the Elgar Model
351
SL and Model 501 SL AC Power
Sources. This series
of solid-state
frequency changers are small and
lightweight in design, saving critical
panel space and money because
they
can provide up to 50% more power
density and weigh nearly one-third less
than
most competitive models. This
model series is ideal
for general purpose
test applications, as well as ATE
systems and avionics testing. Some
of
the features include:
• Compact, Lightweight
• Programmable via the IEEE 488
GeneralPurposeInterfaceBus (GPIB)
• Programmable Current Limit
Automatic
Shutdown and Reporting
• Continuous Duty at 150% of Rated
Capacity
• Overload and Over-Temperature
Protection
• Three Output Voltage Ranges
• Available in 6 Models -1, 2, and 3
Phase
Each
unit allows incorporation of
custom functions without resorting to
special designs. These power sources
provide AC power at precise
frequencies for testing, motor
operation, and frequency conversion.
The basic
power sourceconsists of two
DC supplies and a direct coupled
amplifier
which drives a tapped output
transformer.
The
output voltage ranges are:
• 0 to 65 VAC;
• 0 to 130 VAC; and,
• 0 to 260 VAC.
Output power at full and at less than
full rated voltage is depicted in the
derating chart illustrated in Figure 1-1.
Figure 1-2 represents a typical
harmonic distortion curve. Each
power
source can be configured for a 115,
208, or 230 VAC input, 47-63 Hz,
single phase.
Output voltage, frequency, current,
phase angle, and
other parameters are
controlled by Elgar's fixed, variable, or
plug-in programmable
(PIP} oscillators.
The output frequency range for these
units is
45 Hz to 5 kHz. The basic
power output is single phase.
However, multi-phase outputs may
be
obtained by stacking two or three
power sources, all driven by one multi-
phase plug-in oscillator (refer
to
paragraph 1.3}.
Each
power source is rack mountable.
The
front panel includes:
• A meter for output voltage
monitoring;
• A power ON indicator lamp;
• A voltage amplitude control; and,
• A power circuit breaker.
1-1

351 SL/501SL
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1-2
SECTION I - GENERAL DESCRIPTION
150
140
130
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120
110
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90
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70
60
50
40
30
20
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100 90 80 70 60 50 40 30 20 10 0
PERCENT OF RATED OUTPUT VOLTAGE
POWER DERATING CURVE
Typical Output VA for Elgar
SL/SX Series AC Power Sources
Conditions
Fout = Midband (200 Hz to 500 Hz)
Output Distortion s0.5%
Simultaneous Loading of All Phases
for Multiphase Units.
Input Une • Nominal Value
Figure 1-1. Power Output Derating

351 SL/501SL SECTION I -GENERAL DESCRIPTION
.7
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.1
0
ISO
Frequency • Hz
Figure 1·2. Typical Harmonic Distortion
Cooling air for the power amplifier is
drawn through side panel grills and is
exhausted at the rear of the enclosure.
The enclosure contains heatsink
assemblies and includes a
two section
power amplifier. Control circuitry is
mounted on a plug-in circuit board with
test points and an adjustment control
for output voltage regulation. The
output voltage can be monitored at
either the rear panel terminal block or
the front panel binding posts.
This series of power sources are
programmable via the IEEE-488 GPIB
and meet all requirements of MATE-
STD-280673, including built-in TMA for
CIIL/ATLAS interfacing.
1.2 SINGLE PHASE UNIT
IDENTIFICATION
Figure 1-3 provides an illustration of the
SL Series single phase unit model
identification information, including the
various available options (refer
to
Section II for specific option
information).
1.3 SYSTEM CONFIGURATIONS
Figure 1-4 and Table 1-1 provide an
illustration of the SL Series
identification information when used in
a system configuration in order to
provide two or three output phases
with a variety of total output power
configurations. Refer to Section II,
paragraph 2.7, for further information.
1-3

"""
I
~
501 SL - 1 1 TD-116
MODEL TOTAL OUTPUT
SERIES POWER PHASES
351 350VA 1 PHASE
501 500VA 1 PHASE
MODELTYPE
SL STANDARD MODEL
INPUTPOWER OPTIONS
..() 208 VAC, 3 PHASE, 47-63Hz
(1751 ONLY)
-1 115VAC, 1 PHASE, 47-63Hz
·2 230 VAC, 1 PHASE, 47-63 Hz
-3 208 VAC, 1 PHASE, 47-63 Hz
-4 115VAC, 1 PHASE, 400 Hz
NO~TANDARDOPTIONS
114 150/300 VAC OUTPUT
116 45-10000 Hz FREQUENCY
RANGE
XXX CONSULT FACTORY OR
INSTRUCTION MANUAL
ADDENDUM INSERT
FOR
INFORMATION ON A
SPECIFIC MODEL NUMBER
OTHER STANDARD OPTIONS
T TEST (OUTPUT MONITORING)
D DISCONNECT/CONFIDENCE
S SYNCHRONIZATION
P PARAUEL OUTPUT CAPABIUTY
1
2
3
4
5
6
7
8
9
OUTPUTVOLTAGE OPTIONS
130/260 VAC (SHIPPED 130VAC)
260/130 VAC (SHIPPED 260 VAC)
65/130 VAC (SHIPPED 65 VAC)
130/260VAC RELAY
RANGING
65/130 VAC RELAY RANGING
65/130/260 VAC RELAY RANGING
35 VAC FIXED SINGLE PHASE
65/260VAC RELAY
RANGING
32/130 VAC SIMULTANEOUS
Figure 1-3. SL Series Single Phase Model Identification Information
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SYSTEM TOTAL *POWER
SERIES POWER
SOURCE
700
700VA 351
1000
1000VA 501
1050
1050VA 351
1500
1500VA 501
*- REFER TO TABLE 1-1
MODEL TYPE
SL STANDARD MODEL
NUMBER OF OUTPUT PHASES
-1
-2
-3
ONE OUTPUT PHASE
TWO OUTPUT PHASES
THREE OUTPUT PHASES
1500 SL - 3- 5 4
TO
-
-T
D
s
p
1
2
3
4
5
6
7
8
9
-0
-1
-2
-3
-5
·6
OTHER STANDARD OPllONS
TEST (OUTPUT MONITORING)
DISCONNECT/CONFIDENCE
SYNCHRONIZATION
PARALLEL OUTPUT CAPABIUTY
OUTPUT VOLTAGE OPllONS
130/260 VAC (SHIPPED 130 VAC)
260/130 VAC (SHIPPED 260 VAC)
65/130 VAC (SHIPPED 65 VAC)
130/260 VAC RELAY RANGING
65/130 VAC RELAY RANGING
65/130/260 VAC RELAY RANGING
35 VAC AXED SINGLE PHASE
65/260 VAC RELAY RANGING
32/130 VAC SIMULTANEOUS
----------- - -
INPUT POWER OPTIONS
208VAC, 3 PHASE DELTA, 47-63Hz
120 VAC, 1 PHASE, 47-63 Hz
240 VAC, 1 PHASE, 47-63Hz
208 VAC, 1 PHASE, 47-63Hz
120/208 VAC, 3 PHASE, 47-63 Hz
240/416 VAC, 3 PHASE, 47-63Hz
Figure 1-4. SL System Multi-Phase Model Identification lnfonnation
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351SL/501SL
SECTION I - GENERAL DESCRIPTION
Table 1-1. Multi-Phase System Configurations
700 2
1000 2
1050
3
1500 3
1.4 SPECIFICATIONS
Two Model 351 Sls in 20 at 90°; one
400SR; one signal cable (refer to Section II
for further information).
Two Model 501 Sls in 20 at 90 °; one
400SR; one signal cable (refer to Section II
for further information).
Three Model 351
Sls in a 4-wire Y; two
400SRs; one signal cable (refer to Section II
for further information).
Three Model 501 Sls in a 4-wire Y; two
400SRs; one signal cable (refer.to Section II
for further information).
Output Voltage Range, Standard
Output Transformer:
The performancespecifications listed in
paragraphs 1.4.1 and 1 .4.2 provide
baseline information
for the particular
model.
0-65 VRMS; 0-130 VRMS; or 0-260
VRMS. The rear panel and internal
jumpers provide either 0-65/130 VAC
or
0-130/260 VAC voltage ranges.
1.4.1 Model 351
SL Specifications
1.4. 1.1 Output Characteristics
Output Power: A minimum of 350 VA
from 55-65 VAC, 110-130 VAC, or
220-260 VAC, with a power factor (PF)
from unity to ±0.7 PF, over ±10% of
the input line (refer to Figure 1-1 for
the power derating curve).
1-6
OutputVoltage Range, Optional Output
Transformer:
0-32 VAC or 0-130 VAC,
simultaneous.
Voltage Monitoring: Available via a
meter on the front panel of the unit.
Voltage Control: Adjustable, zero to
full scale via a locking front panel
potentiometer or optional GPIB remote.

351SL/501SL SECTION I - GENERAL DESCRIPTION
Output Current:
Output
Voltage
0-65
0-130
0-260
Maximum RMS Current
Per Phase
8.0
4.0
2.0
Frequency Range: 45 Hz to 5 kHz at
full rated power.
Total HarmonicDistortion (THO):
0.4%
maximum from 200 Hz to 1 kHz; 0.6%
maximum from 45 Hz to 5 kHz (refer to
Figure 1-2 for typical distortion curve).
Load Regulation: ± 1%, no load to full
load over the full frequency range.
Adjustable to 0.1% for specific load
conditions. Better than ±0.25% for a
fixed frequency output between 45 Hz
and 1 kHz.
Line Regulation: ±0.25% at the rated
load for a ± 10% input range at the full
scale output voltage.
Response Time:
<50 psec.
AC Noise Level: 70 dB below full
output voltage with a grounded input.
Gain Stability: ±0.25% for 24 hours
at constant line, load and temperature
after warm-up.
Overload and Short Circuit Protection:
Automatic electronic current limiting
senses both excessive load current
and/or
low power factor. Automatic
instantaneous reset occurs when the
overload is removed unless the front
panel circuit breaker is activated.
Thermal Protection: An automatically
resetting thermal sensor removes the
output voltage to prevent damage due
to excessive overload or heatsink
temperature.
1.4.1.2 Input Characteristics
Line Voltage: User selectable
115 VAC
or 230 VAC, ± 10%, single phase.
Line Frequency: 47-63 Hz continuous
(380-420 Hz optional); 45-70 Hz for
short term transients.
Efficiency: Up to 55%.
Line Power: 1000 watts, maximum.
Line Volt-Amperes:
maximum.
1600 VA,
Line Input: A three wire input via the
terminal block on the rear of the
chassis. The
115 VAC or 230 VAC
selection is made via an external
switch.
1 .4. 1.3 ATE Features
Range Change Relays: An optional
oscillator (PIP) allows the optional
internal range change relays
to switch
between 130 VAC and 260 VAC via
either
front panel control or under
special GPIB control. Other voltage
ranges are available as special options.
Output Relay: An optional internal
output relay can connect the load to
the output of the power source under
GPIB control.
Remote Sense: Available
with a PIP
and other selected oscillators.
1-7