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Phone: +86 16626708626Description
Key Technical Specifications
| Parameter | Value |
| Output Channels | 16 Normally Open (Form A) Relay Contacts |
| Isolation | 1500 VAC channel-to-backplane; point-to-point isolated groups |
| Operating Voltage Range | 5 to 250 VAC (50/60 Hz), 5 to 30 VDC |
| Maximum Load Current | 2 A continuous per point (maximum 15 A per module total) |
| Minimum Load Current | 10 mA @ 5 VDC |
| Response Time | 15 ms maximum (On to Off / Off to On) |
| Contact Life Expectancy | 100,000 operations at rated inductive load |
| Backplane Current Draw | 0.55 A @ +5 VDC (all relays energized) |
| Terminal Connector | Removable 36-pin terminal block |
| Operating Temperature | 0 °C to 60 °C (32 °F to 140 °F) |
Product Introduction & Supply Chain Strategy
The GE Fanuc / Emerson IC697MDL940 is a 16-point Form A relay output module designed for Series 90-70 programmable logic controllers. It provides galvanic isolation between low-voltage PLC logic and high-power industrial devices, directly switching motor starters, solenoid valves, indicator lights, and interlock circuits up to 2 A per channel.
Because the GE Series 90-70 system is officially obsolete, acquiring the IC697MDL940 as New Surplus is a high-ROI strategy to safeguard plant operations. Used or refurbished relay modules pose high risks: internal electromechanical contact contacts pit, weld, or suffer contact oxidation over millions of switching cycles. Purchasing factory-fresh New Surplus units eliminates premature relay contact welding and contact resistance issues, ensuring clean electrical switching and preventing unexpected machine downtime.
Installation & Configuration Guide
1.Pre-Installation (Prep & Safety):Safety measures and field power isolation.
Isolate both the main PLC rack power and external field load power using LOTO protocols. Put on a grounded ESD wrist strap before handling the IC697MDL940 module. Document wire numbers on the front terminal block and verify that field voltage levels do not exceed the 250 VAC / 30 VDC limits.
2.Removal:Safe extraction of physical module and terminal block.
Loosen the top and bottom retaining screws on the removable terminal connector and gently detach it from the module front panel to keep field wiring intact. Unlatch the upper and lower slot locking tabs on the Series 90-70 rack frame. Slide the old IC697MDL940 card straight out along the guide rails to avoid bending backplane pins.
3.Installation (Clone & Seat):Hardware mounting and wiring block mating.
Inspect the rear edge connector on the new IC697MDL940 for dust or pin defects. Align the card with the top and bottom slot guides in the Series 90-70 backplane. Firmly seat the card rearward until the retention levers latch closed, then reattach and screw down the pre-wired terminal block.
4.Power-On & Testing:System re-energization and IO testing.
Apply rack power first and verify that the MODULE OK LED turns solid green. Re-energize field load power. Connect using Proficy Machine Edition or Logicmaster 90, force test individual relay outputs, and check that front-panel output status LEDs illuminate in sync with field device actuation.
IC697MDL940
IC697MDL940
Firmware/Software Versions & Upgrade Notes
- Software Support: Fully compatible with all software versions of Logicmaster 90-70, Control 90-70, and Proficy Machine Edition (PME).
- Base Address Allocation: The IC697MDL940 requires 16 consecutive discrete output bits (%Q memory) assigned in the hardware configuration table. Ensure memory addressing does not overlap existing output cards.
- Inductive Load Suppression: When switching inductive field loads (solenoids, contactors, brake coils), install RC snubbers (for AC) or flyback diodes (for DC) across the external load terminals to prevent contact arcing, contact pitting, and high-frequency electrical noise.
Frequently Asked Questions (FAQ)
Is the completely new and unused?
Yes. This product is a Brand New Surplus unit. It is not used, not pulled from a decommissioned plant, and not refurbished. All modules undergo rigorous quality verification to ensure OEM-level reliability. Original factory packaging is opened solely for visual inspection, terminal check, and anti-counterfeit serial verification.
Why is buying a New Surplus relay card better than a refurbished unit?
Electromechanical relays have a finite mechanical and electrical switching lifespan. Refurbished units often contain relays near the end of their operational cycle, leading to stuck-open or welded-closed contacts under heavy inductive loads. Buying New Surplus guarantees factory-fresh relay contacts with 100% remaining switching life.
Can I mix AC and DC voltages on different channels of the ?
Yes. Each channel group provides individual isolation, allowing you to switch 120 VAC on one group of contacts and 24 VDC on another, provided total module current limits (15 A maximum) and individual channel limits (2 A maximum) are maintained.
Does the support hot-swapping under power?
No. The Series 90-70 VME backplane does not support Removal and Insertion Under Power (RIUP). Attempting to pull or insert the while the backplane is energized can cause electrical arcing across VME pins, corrupt RAM memory, or damage backplane driver circuits.
How does this module fit into a critical spare parts buffer strategy?
Because relay modules interact directly with field actuators, they experience higher electrical stress than standard logic modules. Holding 1 to 2 units of the on-site as buffer stock allows immediate swap-outs during unexpected short-circuit events, preventing extended production line stoppages.
What warranty coverage is included with this New Surplus relay module?
We support this module with a full 1-year functional replacement warranty. If any relay contact failure or backplane communication error occurs under standard operating conditions within 12 months, we will immediately supply a direct replacement module from our stock.
