INSTRUCTION MANUAL
JFS0750 SERIES
POWER SUPPLY
3055 Del Sol Blvd
San Diego, Ca. 92154
Phone (619) 575-4400
Fax (619) 575-7185
IMJFS07 – REV D
JFS S
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NSTRUCTION
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RATINGS AND SPECIFICATIONS FOR LAMBDA MODEL NO. JFS0750:
I. MAXIMUM RATINGS
SPECIFICATION
OUTPUT VOLTAGE RANGE
MAXIMUM OUTPUT CURRENT
(POWER) AT 50°C (AT
V
OUTNOM
)
MAXIMUM OUTPUT CURRENT
(POWER) AT 60°C (AT
V
OUTNOM
)
MAXIMUM OUTPUT CURRENT
(POWER) AT 70°C (AT
V
OUTNOM
)
OPERATING TEMPERATURE
UNITS
V
A (W)
JFS0750-24
20-29
31.2 (750)
JFS0750-48
36-56
15.6 (750)
A (W)
23.4 (562)
11.7 (562)
A (W)
15.6 (375)
7.8 (375)
°C
CONTINUOUS DUTY FROM –20°C TO +70°C
THIRTY MINUTE WARM-UP REQUIRED AT –20°C
II. INPUT SPECIFICATIONS
SPECIFICATION
INPUT VOLTAGE RANGE
INPUT CURRENT (RMS)
INPUT CURRENT (PEAK, AT
COLD START)
INPUT POWER (MAXIMUM)
INPUT SURGE PROTECTION
INPUT EMI, CONDUCTED
EMISSIONS
EFFICIENCY AT P
OUTMAX
POWER FACTOR
CORRECTION AT P
OUTMAX
INPUT CURRENT
HARMONICS
III. OUTPUT SPECIFICATIONS
SPECIFICATION
LINE AND LOAD REGULATION
RIPPLE AND NOISE AT 20 MHz
MEASUREMENT BANDWIDTH
(0-70°C) PER EIAJ METHOD
TEMPERATURE DRIFT
HOLD-UP TIME
LOAD TRANSIENT RESPONSE
(± 25% LOAD CHANGE)
ESD SUSCEPTIBILITY
UNITS
VAC
A
A
W
—
—
%
%
—
JFS0750-24
JFS0750-48
85-265 (47-63 Hz.)
9.0 AT 110VAC
35 AT 110VAC
IN
70 AT 220VAC
IN
1050 AT 85 VAC
IN
COMPLIANT TO IEC1000-4-5, LEVEL 3 STANDARDS
FCC CFR PART 15, SUBPART J CLASS A STANDARDS
EN55022 CLASS A STANDARDS
75 TYPICAL AT 85VAC
IN
99 TYPICAL, PER IEC1000-3-2 STANDARDS
COMPLIANT WITH EN60555-2 ABOVE TEN
PERCENT RATED POWER
UNITS
%
mV
JFS0750-24
JFS0750-48
±1 FROM NO LOAD TO FULL LOAD, 85-265VAC
250
PEAK TO PEAK
500
PEAK TO PEAK
%
ms
—
—
±2 OVER TEMPERATURE RANGE AND LIFE
OUTPUT REMAINS ABOVE V
OUTMIN
LIMIT FOR
16ms UPON REMOVAL OF INPUT VOLTAGE AT Vin Nom (110Vac)
RECOVERY TO WITHIN TWO PERCENT
OF OUTPUT WITHIN 5ms.
IEC1000-4-2 LEVEL 4
(8kV DIRECT DISCHARGE) STANDARDS
IV. OPERATING MODES
DESCRIPTION
PARALLEL OPERATION
(ACTIVE CURRENT SHARE
CONFIGURATION)
OPERATIONAL DEFINITION
REFER TO JFS SERIES APPLICATION NOTES
LAMBDA ELECTRONICS INCOPORATED
3055 DEL SOL BOULEVARD , SAN DIEGO , CA 92154-3474 • TEL: 619-575-4400 • FAX: 619-575-7185
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FEATURES:
I. DC OUTPUT, CONTROLS AND INDICATORS
DESCRIPTION
OPERATIONAL DEFINITION
OUTPUT VOLTAGE ADJUST
FACTORY SET AT 24VDC OR 48VDC. CONSULT FACTORY FOR
ADJUSTMENT. IT IS RECOMMENDED THAT THE VOLTAGE ADJUST
POTENTIOMETER BE SEALED WITH RTV SEALANT AFTER ADJUSTMENT TO
PREVENT OUTPUT VOLTAGE DRIFT IN THE EVENT THAT THE UNIT IS
SUBJECTED TO VIBRATION.
OVERVOLTAGE PROTECTION FACTORY SET AT 30VDC OR 60VDC. CONSULT FACTORY FOR ADJUSTMENT
ADJUST
(NON LATCHING).
OUTPUT- GOOD INDICATOR
GREEN-COLORED LED ILLUMINATES WHEN THE OUTPUT VOLTAGE IS
WITHIN THE SPECIFIED OPERATING RANGE.
II. REMOTE CONTROL FEATURES
DESCRIPTION
OPERATIONAL DEFINITION
REMOTE VOLTAGE SENSING
PROVIDES PRECISE REGULATION DIRECTLY AT LOAD. THE MAXIMUM
TOTAL DC VOLTAGE DROP BETWEEN THE OUTPUT TERMINALS AND THE
LOAD MUST BE LIMITED TO LESS THAN 1.0 VOLT.
REMOTE ON-OFF CONTROL
DC OUTPUT IS INHIBITED VIA A CONTACT CLOSURE BETWEEN PINS 7 AND
8 OF THE TERMINAL STRIP.
SIGNAL ISOLATION
REMOTE ON-OFF PINS ARE REFERENCED TO THE -V
OUT
TERMINAL.
REMOTE VOLTAGE CONTROL
ALLOWS ADJUSTMENT OF OUTPUT VOLTAGE USING EXTERNAL
PROGRAMMING RESISTOR OR VOLTAGE SOURCE. REFER TO JFS SERIES
APPLICATION NOTES; SEE FIGURES 3 AND 4 FOR CONNECTION
DIAGRAMS.
III. AUXILIARY MONITORING AND ALARM SIGNALS — OPTICALLY COUPLED, CONDUCTANCE OUTPUTS.
(CONDUCT UP TO 5mA AT A VOLTAGE OF LESS THAN 1.0VDC WHEN ACTIVE.)
DESCRIPTION
OPERATIONAL DEFINITION
AC FAIL SIGNAL
CONDUCTANCE SIGNAL WHICH INDICATES SUFFICIENT AC INPUT IS
PRESENT TO PROVIDE A MINIMUM OF FIVE MILLISECONDS OF HOLD-UP
TIME AFTER THE REMOVAL OF INPUT.
OUTPUT GOOD SIGNAL
CONDUCTANCE SIGNAL WHICH INDICATES THAT DELIVERED OUTPUT
VOLTAGE, AS MEASURED AT THE +V AND -V TERMINALS IS WITHIN THE
SPECIFIED OPERATING RANGE.
SIGNAL ISOLATION
SIGNALS ARE ISOLATED FROM POWER SUPPLY OUTPUT AND EACH OTHER
FOR VOLTAGES UP TO 500VDC MAXIMUM AND 3000VAC ISOLATION FROM
AC INPUT TO AUXILIARY SIGNALS.
LAMBDA ELECTRONICS INCOPORATED
3055 DEL SOL BOULEVARD , SAN DIEGO , CA 92154-3474 • TEL: 619-575-4400 • FAX: 619-575-7185
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FEATURES (CONT’D)
IV. PROTECTION FEATURES
DESCRIPTION
OVERCURRENT
PROTECTION
OVERVOLTAGE PROTECTION
THERMAL PROTECTION
(OVERTEMPERATURE
PROTECTION)
ISOLATION VOLTAGES
OPERATIONAL DEFINITION
OUTPUT CURRENT IS LIMITED TO APPROXIMATELY 110 PERCENT OF 50ºC
RATED POWER FROM V
OUTMAX
TO V
OUTNOM
. CURRENT LIMIT
CHARACTERISTICS WILL PROVIDE FOLDBACK TO APPROXIMATELY 80
PERCENT OF RATED CURRENT BELOW V
OUTNOM
.
INVERTER SHUTDOWN, NON-LATCHING. CONSULT FACTORY FOR
ADJUSTMENT.
SELF-RESETTING INVERTER SHUTDOWN.
LEAKAGE CURRENT (AC LINE
TO CHASSIS GROUND)
REGULATORY AGENCY
COMPLIANCE
3000VAC, INPUT TO OUTPUT
500VDC, OUTPUT TO CHASSIS GROUND
1500VAC, INPUT TO CHASSIS GROUND
LESS THAN 3.5mA WHEN OPERATED AT 250VAC (47-63Hz) OR LOWER
VOLTAGES.
JFS SERIES POWER MODULES ARE COMPLIANT WITH THE FOLLOWING
STANDARDS:
•
UL1950
•
CSA 22.2-234
•
EN60950
•
CE MARKED FOR EUROPEAN COMMUNITY COMPLIANCE
•
IEC950
V. MECHANICAL FEATURES
SPECIFICATION
STORAGE TEMPERATURE
(NON-OPERATING)
OPERATING TEMPERATURE
UNITS
°C
°C
JFS0750-24
-40 TO +85
JFS0750-48
WEIGHT (NET)
WEIGHT (SHIP)
SIZE (L x W x H)
FINISH
MOUNTING
VI. OTHER FEATURES
DESCRIPTION
COOLING
FUNGUS INERT
GUARANTEE
LBS
LBS
INCHES
—
—
-20 TO +70 WITH DERATING ABOVE +50
(-20 OPERATION REQUIRES A THIRTY
MINUTE WARM-UP PERIOD)
7.5
8.5
12.81 x 5.00 x 3.30 (INCLUDES MOUNTING FLANGE)
GRAY
SEE OUTLINE DRAWING FOR MOUNTING
DEFINITION
FORCED AIR, FAN COOLED FROM THE FRONT OF THE POWER SUPPLY
EXITING AT THE CONNECTOR END.
ALL JFS POWER SUPPLIES ARE INHERENTLY FUNGUS INERT.
FIVE YEARS FROM THE TIME OF DELIVERY, PARTS AND LABOR.
LAMBDA ELECTRONICS INCOPORATED
3055 DEL SOL BOULEVARD , SAN DIEGO , CA 92154-3474 • TEL: 619-575-4400 • FAX: 619-575-7185
P. 3
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VII. CONNECTOR INFORMATION
SENSING AND
DESIGNATION
SIGNAL
1
+S
2
3
4
5
+LS
-LS
-S
PROG
DESCRIPTION
+SENSE CONNECTION. CONNECT TO +V TERMINAL OF LOAD FOR
REMOTE-SENSING. CONNECT TO +LS FOR LOCAL SENSING.
+LOCAL SENSE CONNECTION
-LOCAL SENSE CONNECTION
-SENSE CONNECTION. CONNECT TO -V TERMINAL OF LOAD FOR
REMOTE-SENSING. CONNECT TO -LS FOR LOCAL SENSING.
JUMPER TO PIN 4 (-S) FOR INTERNAL PROGRAMMING. ALLOWS FOR
REMOTE, EXTERNAL PROGRAMMING VIA INSERTION OF RESISTOR
BETWEEN THE PROGRAMMING PIN AND PIN 4 (-S).
CURRENT SHARE BUSS
FUNCTIONS TO ENABLE AND DISABLE THE INVERTER OF THE POWER
SUPPLY. A DIRECT SHORT TO INTERLOCK 2 (PIN 8) THROUGH A
CONTACT CLOSURE WILL INHIBIT THE UNIT. AN OPEN CIRCUIT TO
INTERLOCK 2 WILL ENABLE POWER SUPPLY.
(SEE DESCRIPTION, PIN 7)
2 TRANSISTOR “DARLINGTON” OUTPUT SIGNAL INDICATING THAT A
FAULT CONDITION HAS OCCURRED ON THE AC LINE. THIS PIN
REPRESENTS THE COLLECTOR CAPABLE OF SINKING UP TO 5mA WITH
20 VOLTS MAXIMUM APPLIED FROM COLLECTOR TO EMITTER.
REPRESENTS THE EMITTER OF THE 2 TRANSISTOR “DARLINGTON”
OUTPUT CAPABLE OF SINKING UP TO 5mA WITH 20 VOLTS MAXIMUM
APPLIED FROM COLLECTOR TO EMITTER.
2 TRANSISTOR “DARLINGTON” OUTPUT SIGNAL INDICATING THE
OUTPUT IS PRESENT. THIS PIN REPRESENTS THE COLLECTOR
CAPABLE OF SINKING UP TO 5mA WITH 20 VOLTS MAXIMUM APPLIED
FROM COLLECTOR TO EMITTER.
REPRESENTS THE EMITTER OF THE 2 TRANSISTOR “DARLINGTON”
OUTPUT CAPABLE OF SINKING UP TO 5mA WITH 20 VOLTS MAXIMUM
APPLIED FROM COLLECTOR TO EMITTER.
6
7
ISHARE
INTLK 1
8
9
INTLK 2
AC FAIL 1
10
AC FAIL 2
11
DC GOOD 1
12
DC GOOD 2
LAMBDA ELECTRONICS INCOPORATED
3055 DEL SOL BOULEVARD , SAN DIEGO , CA 92154-3474 • TEL: 619-575-4400 • FAX: 619-575-7185
P. 4
IMJFS07 – REV D
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