GE Fanuc IC655MDL525 / IC655MDL526 / IC655MDL527 Series Five AC Input Modules
Three AC input modules separated by voltage range, circuit count and per-channel isolation.
Function, System Position and Selection Boundary
These Series Five modules interface line-voltage field signals to the PLC and therefore require close attention to voltage, grouping and terminal identification. Their similar family codes do not imply interchangeable wiring.
IC655MDL525 provides 16 inputs for 115/230 VAC. IC655MDL526 provides 32 inputs for 115 VAC. IC655MDL527 returns to 16 points but adds isolation for 115/230 VAC circuits.
Technical Specifications
Shared characteristics
Model differences
Line Voltage Demands Exact Matching
Before moving a terminal block, identify the source voltage and common for every point. The isolated 527 is not merely another 16-point 525.
IC655MDL525
Use for grouped 16-point 115/230 VAC input.
IC655MDL526
Use for 32-point 115 VAC input.
IC655MDL527
Use where 16 individual 115/230 VAC inputs require isolation.
Installation and Acceptance Sequence
- Lock out line-voltage sources and verify absence of voltage.
- Record source voltage, point/common relationships and starting reference.
- Confirm the exact model and terminal keying before reconnection.
- Energize under the approved procedure and validate every LED against the PLC table.
FAQ
Why are IC655MDL525 / IC655MDL526 / IC655MDL527 grouped as Series Five AC inputs?
They are line-voltage Series Five AC input modules with front status indication.
Which of IC655MDL525 / IC655MDL526 / IC655MDL527 has 32 points?
IC655MDL526 has 32 inputs and is specified for 115 VAC.
Which of IC655MDL525 / IC655MDL526 / IC655MDL527 provides isolated input circuits?
IC655MDL527 is the 16-point isolated 115/230 VAC model.
How does IC655MDL525 / IC655MDL526 / IC655MDL527 differ by voltage?
IC655MDL525 and 527 accept 115/230 VAC; IC655MDL526 is the 115 VAC version.
What is the critical replacement check for IC655MDL525 / IC655MDL526 / IC655MDL527?
Match voltage, circuit count, isolation, field common arrangement and starting I/O reference before applying power.
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