GE IC660BBD101 Discrete I/O Modules

Configured for discrete AC input and output signal execution in GE Fanuc Genius I/O network platforms, the GE IC660BBD101 (IC660BBD101 Discrete I/O Block) provides direct physical/electrical execution. This standalone, rackless device integrates 8 configurable 115 VAC circuits, allowing each channel to independently interface with discrete field actuators, switches, or sensors without requiring an external power supply module.

Suffix Breakdown & Model Matrix

Hardware Specifications

Backplane Bus Communication Velocity & Network Integrity

The IC660BBD101 communicates over deterministic Genius bus networks via a serial interface, executing precise token-passing protocols to manage high-speed I/O scanning across distributed nodes. Bus packet scan latency is maintained through strict firmware flash compatibility within the Genius communication stack, preventing frame dropouts or parity faults under high channel traffic. Deterministic network timing allows discrete input filter updates (10 to 100 mS) and zero-crossing output switching commands to execute seamlessly without interrupting serial bus throughput.

Frequently Asked Questions

Q: How does the electronic fuse protection function when an overload occurs on an output channel?

A: The electronic short-circuit trip shuts down the affected circuit within 5 msec if output current exceeds 30 A upon turn-on, or 20 A after 2 AC cycles. Tripped circuits can be reset remotely via CPU command or a handheld monitor.

Q: Does the IC660BBD101 require a separate external power supply module for its control electronics?

A: No, the block derives its internal control power directly from the 115 VAC I/O field source connected to its power terminals.

Field Installation Guidelines

1. Ensure main incoming 115 VAC field power and serial communication loops are de-energized prior to mounting or wiring.
2. Securely panel-mount the device using the mounting holes to maintain a low-impedance connection to enclosure frame ground.
3. Wire the Genius serial bus using approved shielded twisted-pair cabling. Maintain shield continuity across all network nodes and connect the shield ground at one point only to prevent ground loop interference.
4. Verify all output channels are wired within maximum current ratings (2 A steady-state per channel; 15 A total block limit at 35 deg C).
5. Apply field power and verify that the "Unit OK" and "I/O Enabled" status LEDs illuminate before enabling active system control.