GE Fanuc IC697PWR710B Series 90-70 Power Supply Module

The GE Fanuc IC697PWR710B, also cataloged as the IC697PWR710 Power Supply Module, operates as a dedicated hardware component for converting AC or DC input power into regulated backplane DC voltage within Series 90-70 PLC platforms. Operating across an input voltage range of 90 to 264 VAC (47-63 Hz) or 100 to 150 VDC, the unit delivers up to 56 W maximum output power with a regulated 5.1 VDC nominal output at up to 11 A. Mounting directly in the leftmost slot of standard IC697 or VME integrator racks, it supplies operating power to local CPU modules, I/O cards, and peripheral options.

Hardware Specifications

Backplane Bus Communication Velocity & Network Integration

The IC697PWR710B maintains backplane bus communication velocity by delivering stable 5.1 VDC power with tight regulation limits (4.90 to 5.25 VDC) across full logic loads, preventing logic reset trips during dynamic system operation. Its active power factor correction (> 0.95) minimizes line harmonics, while a minimum 21 ms ride-through time maintains CPU execution and firmware flash compatibility during brief AC power dropouts. Electronic current limiting at 12 A and electronic overvoltage clamping at 6.2 V safeguard sensitive bus drivers and memory components without needlessly blowing primary protection fuses during transient fault conditions.

Frequently Asked Questions

Q: What are the input electrical limits and ride-through capabilities during line power dropouts?

A: The module accepts 90 to 264 VAC (47 to 63 Hz) or 100 to 150 VDC inputs, drawing 90 W at full load. In the event of AC input loss, an internal capacitor bank provides a minimum ride-through time of 21 ms to allow safe logic state preservation.

Q: How do the electronic overvoltage and overcurrent protection circuits operate?

A: An electronic clamping circuit limits output voltage if the 5 V rail exceeds 6.2 V, preventing external overvoltage from opening the internal fuse. If load current exceeds 12 A, an electronic current limiter reduces output voltage until the overload is removed, protecting backplane hardware without blowing primary fuses.

Field Installation Guidelines

1. De-energize primary supply lines and lock out power sources before inserting or removing the module.
2. Align the module card edges with the leftmost slot guides of the IC697 baseplate or VME integrator rack.
3. Slide the assembly inward until the backplane connectors seat completely into the chassis backplane.
4. Connect functional ground wiring to the module GND terminal using AWG 12 (3.3 mm2) copper conductor rated for 75 deg C.
5. Torque the ground terminal connection screw to exactly 12 in-lb (1.3 N-m) to maintain optimal noise immunity.
6. Verify AC or DC power input levels match the specified range (90 to 264 VAC or 100 to 150 VDC) prior to energizing the rack.