Configured for discrete signal processing and relay load actuation in Series 90-30 platforms, the GE Fanuc IC693MDR390 (IC693MDR390 Combination Discrete Input/Output Module) provides direct physical/electrical execution.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | IC693MDR390 |
| Brand | GE Fanuc Emerson |
| Origin | USA |
| Weight | 0.69 lbs (0.31 kg) |
| Dimensions | Single-slot Series 90-30 module width |
| Operating Temp | 0 to 60 deg C |
| Power Consumption | 80 mA backplane current draw (all I/O active); 70 mA (all outputs energized) |
| Input Channels | 8 discrete DC inputs |
| Input Rated Voltage | 24 VDC nominal (-30 to +32 VDC range) |
| Input On-State Limits | 15 to 32 VDC; 4 mA minimum current |
| Input Off-State Limits | 0 to 5 VDC; 1.5 mA maximum leakage current |
| Input Current | 7.5 mA typical at rated voltage |
| Input Response Time | 7 ms typical (On and Off transitions) |
| Output Channels | 8 Normally Open (N.O.) relay contact outputs |
| Output Operating Voltage | 5 to 30 VDC; 5 to 250 VAC (50/60 Hz) |
| Output Current Rating | 2 A maximum per point; 4 A maximum per common |
| Output Response Time | 15 ms maximum (On and Off transitions) |
| Galvanic Isolation | 1500 V RMS between logic/inputs and outputs; 500 V RMS between output groups |
| Channel Diagnostics | Individual status LED indicators per I/O circuit |
Backplane Bus Communication Velocity & I/O Density Scaling
The IC693MDR390 module updates 8 discrete input states and 8 relay output channels across the backplane bus to optimize backplane bus communication velocity and I/O density scaling within a single slot footprint. The input section processes 24 VDC signals with a 7 ms transition delay, while the output section features two isolated groups of four Normally Open relay contacts capable of switching up to 2 A per point across 5-30 VDC or 5-250 VAC line ranges. Internal firmware flash compatibility ensures seamless address mapping across baseplate configurations. High-density isolation rated at 1500 V RMS protects internal backplane logic from external load transients.
Frequently Asked Questions
Q: What are the electrical rating limits for the output relay contacts?
A: Each Normally Open relay output channel supports up to 2 A maximum at operating voltages of 5 to 30 VDC or 5 to 250 VAC (50/60 Hz), with a limit of 4 A maximum per common grouping.
Q: How are the output channels grouped and isolated from one another?
A: The 8 relay output contacts are arranged into two independent groups of 4 channels each, featuring 500 V RMS galvanic isolation between groups and 1500 V RMS isolation from field logic.
Q: What is the backplane current draw for the IC693MDR390 during full operation?
A: The module draws 80 mA from the backplane bus when all input and output channels are active, and 70 mA when only the output relays are energized.
Field Installation Guidelines
- De-energize system backplane power and field voltage supply loops prior to installing or servicing the module.
- Insert the single-slot IC693MDR390 into any open I/O slot of a Series 90-30 local, expansion, or remote baseplate, verifying that the edge connector aligns with the backplane bus.
- Secure the module top and bottom panel screws to establish chassis mechanical retention and earth grounding.
- Connect 24 VDC discrete input devices and AC/DC output loads to the removable terminal block in accordance with the 2-group isolated wiring arrangement.
- Separate DC input signal wiring from AC high-current load cables inside wireways to prevent inductive crosstalk, grounding shield connections at a single baseplate chassis point.
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