GE IC697PWR711/713 Power Supply Module
GE IC697PWR711/713 Power Supply Module
INTRODUCTION
The 100 Watt Power Supply Module is a rack-mounted unit that plugs directly into a 48-pin backplanemounted connector in the leftmost slot in the rack. It provides +5 volt, +12 volt and -12 volt power, and logic level sequencing signals to the backplane. This power supply may be used either in a single rack application, or may also be used to provide power to a second rack if the total load is within the supply rating. Interconnection to the second rack is through a prewired cable.
Features
Operation from 120 VAC, 240 VAC, or 125 VDC
Three output voltages, 100 watts total +5 VDC output up to 20 amps +12 VDC output up to 2 amps -12 VDC output up to 1 amp
Slide-in rack mount construction
Electronic short circuit overcurrent protection
Two rack operation from a single power supply
Power Factor correction for AC operation
Jumper for overvoltage protection devices
Operation of the Power Supply
This Power Supply module can operate from either 120 VAC or 240 VAC nominal inputs. It will also operate from a nominal 125 VDC source. The specified range of operation is from 90 VAC to 264 VAC, and from 100 VDC to 150 VDC.
For continuous operation (greater than one hour) at low line voltages and high temperatures, some power derating must be applied. Refer to the following figure to determine the normal operating range for specific applications. Normal operating range is shown by the shaded area of the graph for 60C (140F) installations. Operation in the non-shaded region for specific applications must be limited to <1 hour. Reducing the maximum operating temperature to 55C (131F) will increase the normal operating range as indicated on the graph.
Overvoltage Protection
An electronic shutdown circuit protects against voltages exceeding 6.2 volts. A back-up voltage clamp is provided to protect against sustained overvoltage conditions due to either external influences or internal faults. Overvoltage due to internal faults may cause the fuse to open. For short term overvoltage conditions, normal operation will resume when the cause is removed.
Overcurrent Protection
An electronic current limit is provided on each of the three outputs. An overload on any output will cause the voltage to collapse and may cause the other output voltages to collapse. Normal operation will resume after removal of the overload. Some component cooling time may be required before normal operation resumes.
Dual Rack Operation
A single power supply can provide power for two racks under the following conditions:
Only 5 volt power is required in the second rack, and the total power required by both racks is with-in the capability of the supply.
The current drawn by the second rack is less than 5.2 amperes.
The two racks must be mounted in close proximity as limited by the available 3-foot connecting cable.
The connecting cable used for dual rack operation is listed in Table 2, Ordering Information. This cable carries the +5 volts power bus as well as the power sequencing signals. It uses a 9-pin D-type connector which connects directly to the backplane through an opening in the rack frame. Note that the cable carries power and power sequencing signals only. Inter-rack communication and bus interface modules must be provided separately. See the applicable Programmable Controller Installation Manual. for application information.
Field Wiring Connections
The power input terminal board has four terminals. The top two (L1 and N) are for 120/240 VAC or 125 VDC input power connections; the third and fourth terminals are for ground and overvoltage protection device connections, respectively. Power input connections should be made with copper AWG #16 (1.3 mm2 ) wire rated for 75C (167F). Each terminal can accept solid or stranded wires, but the wires into any given terminal should be the same type and size.
Power Supply Door
The power supply door can easily be opened by grasping the upper left corner of the door with your right thumb or a fingernail and gently pulling the door towards you. Use care when opening the door since pulling from the bottom can cause the hinge or the door to break.
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