Features:
- Accepts thirty-two discrete 24 VDC field inputs through one RX3i rack position.
- Supports positive- or negative-logic wiring for compatible sensing devices.
- Organizes the inputs into four groups of eight with separate group commons.
IC694MDL660 gives an RX3i controller a dense connection point for switches, sensors, and dry-contact interfaces.
Selectable input filtering lets IC694MDL660 reject bounce or electrical noise without forcing every installation to use the same response time.
When IC694MDL660 is replaced, the existing group commons, polarity, terminal assignments, and filter settings should remain aligned with the controller configuration.
The General Electric IC694MDL660 PACSystems RX3i 32-Point 24 VDC Input Module may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
General Electric IC694MDL660 PACSystems RX3i Input Module Manuals,Datasheets,Link
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
Field Signal Arrangement
- Group Commons: Four eight-point groups let field returns be organized separately across the module.
- Logic Polarity: Positive- or negative-logic devices require the matching common and signal direction.
- Voltage Window: Field inputs operate from 0 to 30 VDC around a nominal 24 VDC system.
- Terminal Transfer: Record each point and common before moving the removable wiring assembly to a replacement.
Response Tuning
- Filter Choices: Configurable intervals range from 0.5 ms to 100 ms for the thirty-two input points.
- Contact Bounce: A longer interval can prevent a mechanical contact from appearing as several rapid transitions.
- Noise Rejection: Filtering can suppress short disturbances that do not represent a valid field-state change.
- Timing Check: The chosen interval must still allow the controller to recognize events within the required machine response.
Input and Hardware Feedback
- Point Indication: Front LEDs provide a direct view of the commanded state received at each input.
- Controller Data: The RX3i reads the thirty-two point states through the module backplane interface.
- Terminal Check: Module status information can identify whether the removable terminal assembly is present.
- Revision Meaning: Status-bit interpretation differs between revision A and later IC694MDL660 hardware.
Rack and Replacement Planning
- Rack Position: The module installs in a compatible PACSystems RX3i universal backplane slot.
- Field Isolation: Keep each group common associated with its original eight input circuits.
- Configuration Match: Logic polarity and filter values in the controller project must agree with the connected devices.
- Revision Review: Confirm the complete catalog suffix and terminal-block compatibility before exchanging hardware.