GE IC693MDL645G DC Positive/Negative Logic Input Module

FAQ

Q1: What is the GE Fanuc IC693MDL645G used for?
The IC693MDL645G is a digital input module used in Series 90-30 PLC systems to collect ON/OFF signals from external DC field devices and transfer the input status to the PLC CPU. Typical applications include sensors, switches, and industrial control devices.

Q2: How many input channels does the IC693MDL645G provide?
The module provides 16 discrete DC input points arranged in one group with a single common terminal. Each input channel has an individual LED indicator for monitoring field signal status.

Q3: What type of input signals does the IC693MDL645G support?
The module supports both positive logic and negative logic 24 VDC input devices, allowing connection to a wide range of industrial switches, sensors, and electronic proximity devices.

Q4: What voltage range can the IC693MDL645G accept?
The module accepts DC input signals from 0 to +30 VDC, with an ON-state voltage range of 11.5 to 30 VDC and an OFF-state voltage range of approximately 0 to ±5 VDC.

Q5: Does the IC693MDL645G provide electrical isolation?
Yes. The module provides 1500 VAC isolation between the field wiring side and the PLC logic side, helping protect the control system from electrical interference and field-side voltage disturbances.

Q6: What devices can be connected to the IC693MDL645G inputs?
The module can be connected to devices such as push buttons, limit switches, proximity sensors, relay contacts, and other 24 VDC discrete field devices.

Q7: What does the “G” revision indicate?
The “G” suffix identifies the hardware revision level of the IC693MDL645 input module. Revision changes typically include manufacturing improvements while maintaining compatibility with Series 90-30 PLC systems.

Q8: What should be checked before replacing an IC693MDL645G module?
Before replacement, verify the Series 90-30 baseplate compatibility, 24 VDC input wiring, common terminal connection, field device voltage level, PLC hardware configuration, and input addressing to ensure correct operation after installation.