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3. Key Technical Specifications
| Parameter | Value |
| Number of Output Points | 32 (4 groups of 8 outputs each) |
| Output Type | Solid-state, current-sinking (Form A equivalent logic) |
| Operating Voltage Range | 12 to 24 VDC (+20%, −15%) |
| Maximum Current per Point | 0.5 Amps maximum |
| Maximum Current per Group | 4.0 Amps maximum |
| Maximum Leakage Current | 1.0 mA at maximum voltage |
| Maximum Inrush Current | 2.0 Amps for 10 ms |
| On / Off Response Time | 2 ms maximum |
| Internal Power Draw | 400 mA from +5 VDC backplane rail |
| Isolation (Field to Backplane) | 1,500 VDC continuous |
| Status Indicators | 32 green LEDs (ON indicates output transistor is conducting) |
| Fusing | None (External fusing required per group) |
4. Product Introduction & Supply Chain Strategy
The GE Fanuc IC697MDL750E is a 32-point, 24 VDC discrete solid-state output module designed for the mature Series 90-70 platform. Operating with a current-sinking configuration, this high-density module utilizes solid-state switching components to command solenoids, indicator panels, and interposing relays at response speeds under 2 ms. The 32 channels are grouped into four isolated banks of eight, providing flexibility to manage distinct external power loops on a single VME card footprint.
From a Total Cost of Ownership (TCO) standpoint, carrying the “E” revision of the IC697MDL750 as a New Surplus asset is an essential procurement strategy. Because this legacy chassis infrastructure is completely obsolete, a sudden output card failure can disable critical plant interlocks. Choosing third-party refurbished cards introduces high failure risks due to degraded output transistors and stressed traces. Securing certified new surplus stock ensures your maintenance teams have factory-fresh, zero-hour units ready for immediate physical installation, protecting your operational budget from emergency vendor lead times.
5. Installation & Configuration Guide
Stage 1: Pre-Installation (Prep & Safety)
Perform strict lock-out/tag-out (LOTO) protocols on the targeted Series 90-70 rack chassis power supply and all external 24 VDC field excitation sources. Fasten a grounded ESD wrist strap to your arm and clamp the opposite end to an unpainted section of the control enclosure frame. Prior to pulling the card, photograph the front terminal connections and confirm that you have a current hardware configuration backup stored within Proficy Machine Edition or Logicmaster 90-70.
Stage 2: Removal
Loosen the upper and lower faceplate retaining screws securing the module casing. Unplug the terminal block connector strip from the front face of the card to leave the field wiring intact. Simultaneously pull the top and bottom card ejector clips outward to disengage the high-density VME backplane connection pins, then slide the module horizontally out of the slot tracks.
Stage 3: Installation (Clone & Seat)
Verify that the replacement IC697MDL750E has clean backplane contacts and that its rear configuration jumpers match the original module setup. Align the card edge with the plastic tracks of the targeted slot. Slide the card directly inward until it sits flush against the rack frame, then lock the top and bottom ejector clips to secure the 96-pin VME interface. Re-seat the wired terminal block assembly.
Stage 4: Power-On & Testing
Energize the main Series 90-70 rack power supply rail. Check the front panel LED cluster: the “Module OK” status light must illuminate solid green, indicating the internal logic has cleared its boot diagnostics. Restore external field power, clear any historical fault tables via the programming software, and cycle a test register to confirm that the output channel switches reliably within its 2 ms response envelope.
- IC697MDL750E
- IC697MDL750E
6. Firmware/Software Versions & Upgrade Notes
The IC697MDL750E is a hardwired discrete output module that does not require flash firmware upgrades. However, its electrical performance relies heavily on proper hardware revision identification within the programming software.
- Software Baselines: This module requires Logicmaster 90-70 version 4.0 or higher, or any standard release of Proficy Machine Edition.
- Revision Matching: The “E” suffix designates a specific manufacturing revision flight that addresses component changes on the internal logic board. When configuring the system hardware matrix, ensure the module parameters align with the physical revision group.
- Configuration Drift: Replacing an early revision card (e.g., a standard IC697MDL750) with the newer “E” revision is fully backward-compatible. However, you should still verify that the logic variables assigned to the
%Qregister table do not exceed the 32-point grouping boundary, as forcing incorrect variable sizes can generate configuration mismatch faults in the CPU log.
7. Frequently Asked Questions (FAQ)
What does “current-sinking” mean for the outputs on this module?
A current-sinking configuration means that when a specific output channel is energized, the internal solid-state transistor completes the path to the DC ground reference (0 VDC). The external load must be connected between the positive voltage rail (+24 VDC) and the module’s output terminal terminal point.
Is this IC697MDL750E card brand new or a repaired surplus unit?
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. Every card is packed in clean, anti-static protective packaging, showing zero trace of pin scoring or board repairs, and includes verifiable serial tracking.
Can I hot-swap this output module while the Series 90-70 rack is running?
No. The legacy Series 90-70 VME backplane architecture does not feature hot-swap capability. Removing or inserting an IC697MDL750E card while the rack is powered up can create electrical arcs across the VME data lines. This can damage the controller board, ruin adjacent modules, or cause an immediate CPU system crash. Always turn off the rack before swapping hardware.
Does this module include internal short-circuit protection or fuses?
No, the IC697MDL750E does not contain internal fuses or short-circuit protection mechanisms for the output transistors. To prevent an external field short from melting the internal board traces, you must install external fuses (typically 5.0 Amp fast-acting fuses) on the power supply line feeding each of the four isolated output groups.
What warranty terms apply to this obsolete surplus card?
We protect this New Surplus IC697MDL750E module with a comprehensive 1-year operational warranty from your date of purchase. This long-term coverage shields your maintenance budget from the short 30-day warranties typically offered by vendors selling used or repaired surplus components.
