Intronics PLC4000 series Power Supplies designed safely completely pow

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Intronics PLC4000 series Power Supplies designed safely completely pow

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GENERAL THEORY OPERATION
Intronics PLC4000 series Power Supplies designed safely completely power fully loaded Allen Bradley 1771 rack system. units designed operated either "Stand Alone" "Redundant Mode Operation" minimize probability interruption running 1771. units mechanically configured mounting outside 1771 rack maximize available slots other data cards. Each unit capable providing amps output current either mode operation. redundant mode, total system requirements must exceed order insure full redundancy. This power level sufficient operate most standard rack configurations between slots. Each unit fused. units configured operated major market applications. design units makes them compatible Allen Bradley 1771 used applications such Telecom, Transportation, Utilities, Material Handling, etc. units contain appropriate monitoring alarm circuitry interface with 1771 chassis, provide continuous monitoring system. event input power failure, unit sufficient Hold-Up time orderly system shutdown.
TECHNICAL FEATURES INPUT STAGE Input Voltage Operating Range
units designed meet industry standard input power requirements.
Model PLC4024 Model PLC4048 Model PLC4125 Nom) Nom) (125 Nom)
Input output input case isolated; minute, second
Note: Please consult factory optional input voltage ranges
Reverse Polarity Protection Input Transient Protection
unit designed with input protection circuitry event input voltage reversal transient. units contain user accessible fuse which replaced unit installed improperly. Unit will turn event reverse voltage being applied input.
FUSE RATINGS MODEL
Model PLC4024 Model PLC4048 Model PLC4125 slow blow slow blow slow blow
IMPORTANT NOTE: only above recommended fuse value. improper value fuses could significantly damage Power Supply cause hazardous condition. hazardous environments, turn power mains maintain safe conditions.
Powering Units
output connections must made prior applying power unit(s). power applied prior completing output connections, power supply invoke output overvoltage protection circuitry shut unit(s) down.
OUTPUT STAGE Output Voltage Remote Sense
units internally programmed provide correct output voltage 1771 rack, (4.87 5.25 Vdc). Each unit designed with remote sense lines that will keep voltage rack specified levels. This feature compensates voltage losses output cable between power supply 1771 rack when used with recommended cable. **IMPORTANT NOTE: Maximum recommended output cable length (four) feet between power supply 1771 rack. Minimum wire gauge recommended shielded cable.
Please consult factory ordering input, output, current share cables
Swapping
models designed installed into powered system need unit will self delay turn supply approximately (four) seconds prevent damage connectors caused "Arcing" input voltage. Connect output cables prior applying power unit(s)
**WARNING: swapping hazardous environment, power must turned mains maintain safe conditions.
Output Current Rating
power supply capable providing following output currents 1771 chassis: Minimum output current needed specified operation 2.0A Maximum output current 24.0A Minimum system load required current sharing (redundant mode) amps Output voltage will remain tolerance after removal load current once unit started Units designed stay within specified limits transient load changes maximum. Load changes greater than result automatic unit shutdown which will require input power re-cycled.
Input Voltage Monitoring! Alarms Hold Time
PLC4000 models designed monitor input voltage specified voltage levels. event sudden loss voltage voltage which within specified ranges, unit designed begin automatic shutdown procedure according following sequence: System alarm signals through either Status alarm circuitry. Hold-Up Time will keep output voltage unit operating long enough download critical data. Automatic shutdown power supply which turns PLC.
Input Wire Gauge
When installing PLC4000 units into system configuration, proper care must given wire gauge chosen prevent voltage losses wire resistance length wire. input voltage specification defined voltage measured input connector unit. NOT'E: models must minimum wire size.
Output Overvoltage/Overcurrent
models designed with self protection means automatic shutdown either following conditions seen power supply: Output Voltage greater than Output Current greater than 110% rated maximum Status cable provides closed relay contact when output voltage within specified range. NOTE: automatic shutdown requires turn input power switch second delay prior recycle turn
Redundant Operation
PLC4000 units used single stand alone power supply that plugs directly into provide necessary power requirements 1771. Refer Figure non-redundant interfacing
Redundant Operation Current Sharing
PLC4000 models capable being operated "Redundant" mode configuration. models supplied with redundant ORing" diode built into unit itself. redundant configuration, units designed share output load current with proper installation "Current Sharing Cable". Refer Figure redundant system interfacing
Indicator
green indicator light signifies input output voltages within proper tolerance ranges described Technical Specification Sheet.
Status
contact normally open. Closed indicates power supply active while open indicates output voltage below specified range.
**IMPORTANT NOTE: When installing units redundant mode configuration, total system power being drawn cannot exceed rated specification amps. This limit will insure proper operation transition current sharing function event failure during system operation.
Allen Bradley application notes complete description
Thermal
Baseplate power supply must maintained 75°C insure proper operation reliability.
Intronics, Inc. 1400 Providence Highway, Building Norwood, 02062 Tel: (800) 367-0004 (781) 551-5555 www.intronicspower.com
MECHANICAL DIMENSIONS PLC4000 SERIES
Connections Description
FIGURE
.250 .203 plcs) Screw
J1-1 J1-2 J1-3 J2-1 J2-2 J3-1 J3-2 J3-3 J3-4 J3-5 J3-6 J3-7 J3-8 J3-9 Case
Description Chassis Status Status Share Share Blank Blank Share Return Shield Chassis
J5-A1 J5-1 J5-2 J5-3 J5-4 J5-A2 Case
Description +5Vdc +Sense -Sense +5Vdc Return Chassis
7.500 8.000
FUSE
Connect
.335
4.115 8.230 9.00
3.80
SIDE VIEW
SINGLE UNIT CONFIGURATION
FIGURE
Input, Output, Current Share cables should ordered separate items.
PLC4000 Unit
Allen Bradley 1771
Single unit cable Redundant unit cable
REDUNDANT UNIT CONFIGURATION
FIGURE
Cables
Interface Length
PLC4000 Unit PLC4000 Unit Allen Bradley 1771
Input Voltage Status Line Single
Redundant Cables Output Current Share Redundant
Note: ongoing product improvements, specifications subject change
Intronics, Inc., 1400 Providence Highway, Building Norwood, 02062 (800) 367-0004 (781) 551-5555 www.intronicspower.com

Intronics PLC4000 series Power Supplies designed safely completely pow

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