GE Fanuc HE693RLY110A Series 90-30 Relay Output Module

The GE Fanuc HE693RLY110A, also cataloged as the HE693RLY110 Relay Output Module, operates as a dedicated hardware component for switching AC or DC loads within GE Fanuc Series 90-30 PLC backplane platforms. The module provides 16 form A normally open relay output channels, receiving logic control signals from the backplane to drive external motor starters, solenoid valves, and indicator lamps.

Hardware Specifications

Backplane Bus Communication Velocity & Firmware Flash Compatibility

The HE693RLY110A draws a low power load of 100 mA from the backplane supply, ensuring minimal thermal dissipation and high backplane bus communication velocity across the Series 90-30 rack. 1500 VAC optical isolation completely decouples the low-voltage logic interface from field-side switching transients. Integrated suppression diodes absorb inductive kickback from DC solenoids, preventing noise coupling into the PLC backplane and maintaining firmware communication integrity under continuous relay cycling up to 10 Hz.

Frequently Asked Questions

Q: Is hot-swapping permitted for the HE693RLY110A card during active PLC rack operation?

A: No. Power to the Series 90-30 rack backplane must be completely de-energized prior to inserting or removing the HE693RLY110A module to prevent transient electrical damage to the backplane connector pins.

Q: What protection measures are recommended when driving AC inductive loads with this module?

A: External RC snubbers must be connected across the output contacts when switching AC inductive loads to suppress inductive arc discharge and extend contact operating life.

Q: What is the maximum current capacity supported per individual relay channel?

A: Each individual Form A relay contact supports up to 2 A at 250 VAC or 30 VDC, subject to an overall module total current limit of 8 A.

Field Installation Guidelines

Ensure main power to the Series 90-30 rack baseplate is completely de-energized prior to module mounting. Snap the module securely into any standard 90-30 series rack slot position, verifying that top and bottom retaining levers engage the rack frame. Wire field loads to the 48-pin front terminal block using 0.5 mm² to 1.5 mm² stranded copper wire, tightening screw-type terminals with a 3 mm flathead screwdriver. Route all field wiring separately from logic level cables to prevent electromagnetic coupling, and ensure all 16 channels share the dedicated single common terminal properly.