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The GE IC693MDL940, also cataloged as the IC693MDL940 Relay Output Module, operates as a dedicated hardware component for switching AC and DC load circuits within Series 90-30 backplane platforms.

Hardware Specifications

Parameter Specification
Model IC693MDL940
Brand GE Fanuc / Emerson Automation
Origin USA
Weight 0.37 kg (0.81 lbs)
Dimensions Single-slot Series 90-30 module format
Operating Temp 0 to 60 deg C
Power Consumption Standard Series 90-30 backplane supply current draw
Output Points 16 points
Output Grouping 4 isolated groups (4 outputs per group)
Nominal Voltage 24 VDC / 120/240 VAC
Operating Voltage Range 5 to 30 VDC / 5 to 250 VAC (50/60 Hz)
Max Load Current per Output 2 A
Max Load Current per Common 4 A
Min Load Current 10 mA
Max Inrush Current 5 A
Response Time 15 ms max (ON and OFF)

Backplane Bus Communication Velocity & Output Execution

The module processes discrete output logic transmitted across the backplane bus to drive electromechanical relay contacts. System-level backplane bus communication velocity supports cycle updating to synchronize all 16 channels. High I/O density scaling allows 4 independent common groups, providing electrical isolation for mixed-voltage field loads. Onboard status LEDs provide real-time logic execution feedback for local diagnostics.

Frequently Asked Questions

Q: What are the maximum continuous current ratings per point and per common group? A: Each individual relay output channel supports up to 2 A, while each 4-point common group allows a maximum continuous load of 4 A.

Q: What is the maximum switching response time for the relay contacts? A: The physical contact actuation response time is 15 ms maximum for both ON and OFF transitions.

Q: What voltage ranges can be controlled using the IC693MDL940 output points? A: The relay contacts handle operating voltages ranging from 5 to 30 VDC for direct current loads, and 5 to 250 VAC (50/60 Hz) for alternating current loads.

Field Installation Guidelines

  • Baseplate Insertion: Disconnect rack power before inserting or removing the module from the Series 90-30 baseplate to avoid arcing on backplane connectors.
  • Field Wiring Configuration: Connect field power lines to the designated common terminals for each of the 4 independent groups. Ensure current per common does not exceed 4 A continuous load.
  • Inductive Load Suppression: Install external RC snubbers across AC inductive loads or flyback diodes across DC inductive loads to protect mechanical relay contacts from voltage spikes.
  • Shield & Earth Grounding: Connect all cable shields and enclosure ground points directly to the master earth bus to prevent electromagnetic interference.

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