Description
Product Introduction
The GE Fanuc IC693MDL740 is a 16-point 12/24 VDC positive-logic output module for the Series 90-30 PLC platform. It is built to drive discrete field devices such as relays, solenoids, motor starters, and indicators from the PLC backplane into the process side.
Its strength is plain. You get a dense DC output card with positive logic, two output groups, and enough current capacity for common legacy panel loads. In the field, that means less wiring churn and fewer surprises when you replace an old 90-30 output rack member.
Key Technical Specifications
| Parameter | Value |
|---|---|
| Model | IC693MDL740 |
| Manufacturer | GE Fanuc |
| Series | Series 90-30 |
| Product Type | Digital Output Module |
| Output Points | 16 |
| Output Logic | Positive logic |
| Nominal Output Voltage | 12/24 VDC |
| Output Voltage Range | 12 to 24 VDC (+20%, -15%) |
| Output Current per Point | 0.5 A max |
| Output Current per Common | 2 A max |
| Response Time | 2 ms max on/off |
| Isolation | 1500 V field-to-logic, 500 V between groups |
| Backplane Power | 110 mA from 5 V bus |
Application Scenarios & The “Trench” Experience
This is the sort of card that fails quietly and causes loud problems. One lost output can stop a starter, a valve, or a stack light, and operators usually blame the device on the far end first. Then the meter comes out, and the real problem is sitting in the PLC rack.
- Manufacturing – Solenoid and relay control – Used when the panel needs 16 compact DC outputs for machine actuation.
- Process control – Interlock and permissive outputs – Required when the PLC must drive discrete field devices with positive logic.
- Packaging lines – Indicator and starter output groups – Needed for dense 12/24 VDC load switching in a legacy 90-30 cabinet.
- Retrofit support – Like-for-like replacement – Chosen when the plant wants to keep the same wiring and output behavior.
Field case: a machine line began dropping a single feed starter every few hours, but only under load. The starter tested fine, the wiring tested fine, and the issue ended up being one weak output channel on the IC693MDL740. Swapping the module restored stable operation and avoided a full cabinet rebuild.

- IC693MDL740

- IC693MDL740
Transparency SOP: Quality Assurance & Testing
We don’t just ship boxes; we test them on actual GE racks.
- Inbound Inspection: Check part number, suffix, connector condition, terminal wear, and counterfeit indicators.
- Live Rig Testing: Install in a known-good Series 90-30 rack and verify all 16 outputs.
- Electrical Parameter Checks: Confirm current draw, output switching, voltage drop, and isolation behavior.
- Firmware Verification: Not firmware-driven, but exact hardware revision and response timing are logged.
- Final QC & Anti-static Packaging: Clean, function-test, and pack in ESD-safe materials before shipment.
The Veteran’s Tech Trap Guide
- ⚠️ Don’t mix up input and output cards. The 740 is an output module. If you land sensor wiring on it, you will waste time and possibly damage field devices.
- ❗ Watch the current per common. The card is rated for 0.5 A per point, but the common limit is 2 A. That is where people overload it.
- ⚠️ Positive logic matters. This is a sourcing output module. If your load expects sinking behavior, the circuit will not behave the way you want.
- ❗ Check response time under real load. A bench test with no load tells you very little about inrush and coil behavior.
Frequently Asked Questions (FAQ for Conversion)
Q: Is IC693MDL740 hot-swappable?
A: No. Treat it like a powered-down replacement part, not a live insert.
Q: How many outputs does it have?
A: 16 outputs arranged in two groups of eight.
Q: What voltage does it use?
A: 12/24 VDC nominal, with a 12 to 24 VDC operating range.
Q: What kind of loads can it drive?
A: Motor starters, solenoids, relays, indicators, buzzers, and similar 24 VDC loads.
Q: Does it have internal fusing?
A: No. External protection is recommended.
Q: Why is it cheaper than OEM direct supply?
A: Because available stock usually comes from surplus channels, not active production.
Q: Is it fake or refurbished?
A: The surplus market is mixed. Ask for test data, clear photos, and revision details before you buy.




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