GE IC660BBA105 Genius I/O Block Module

Configured for analog current output loop execution in GE Fanuc Genius I/O network platforms, the GE IC660BBA105 (IC660BBA105 Current Source Analog Output Block) provides direct physical/electrical execution. This standalone rackless module converts digital commands received across the serial communications bus into 6 independent 4-20 mA current source outputs to drive field control elements without requiring a separate rack interface.

Hardware Specifications

Backplane Bus Communication Velocity & Network Integrity

The IC660BBA105 interfaces directly with the Genius serial bus, utilizing a deterministic token-passing communication architecture to process output commands. Baud rate and bus scan settings determine loop update latencies, ensuring reliable synchronization between control logic and final output devices. Firmware flash compatibility within the integrated bus interface prevents packet drops and timing skew, maintaining network integrity across continuous I/O scanning routines.

Frequently Asked Questions

Q: Does the IC660BBA105 require external auxiliary power to operate its output channels?

A: No, the block processes power from its primary 115 VAC or 125 VDC terminal connection to drive the internal control logic and generate the 4-20 mA output current loops.

Q: Is hot-swapping supported for the IC660BBA105 while power is applied to the field terminal connections?

A: No, all power lines and field output wiring must be de-energized prior to removing or servicing the module to prevent electrical shock hazards and transient communication errors on the serial network.

Field Installation Guidelines

1. Disconnect and lockout all 115 VAC / 125 VDC power supplies and signal wiring before installation or physical adjustment.
2. Mount the block securely on a grounded metallic enclosure plate to ensure effective heat dissipation and low-impedance frame grounding.
3. Wire the serial network using approved shielded twisted-pair cables. Maintain continuous shield wiring across network nodes and ground the shield at a single designated reference point to avoid noise from ground loops.
4. Verify that all field wiring for the 6 output circuits is correctly wired for 4-20 mA current source operation before applying power.
5. Energize the power terminals and confirm the unit status diagnostic LEDs signal proper initialization before enabling active control execution.