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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