GE Fanuc IC693ALG390C Series 90-30 Analog Voltage Output Module

Configured for precise analog speed and valve position control in Series 90-30 PLC systems, the GE Fanuc IC693ALG390C (IC693ALG390 Analog Voltage Output Module) provides direct physical/electrical execution.

Hardware Specifications

Deterministic Backplane & Analog Drive Attributes

The IC693ALG390C converts 12-bit digital values from the Series 90-30 backplane into bipolar -10 to +10 VDC command signals with a fast 5 ms update rate across both channels. Dedicated onboard isolation circuitry maintains 1500 V RMS separation between field-side control loops and the backplane logic bus, preserving backplane bus communication velocity and preventing ground noise propagation. Full firmware flash compatibility enables deterministic interaction with system CPU modules, while configurable DEF0 jumper settings determine fail-safe state execution (holding last-state value or forcing 0 VDC output) upon CPU fault or STOP modes.

Frequently Asked Questions

Q: What are the primary backplane and field power requirements for the IC693ALG390C?

A: The module draws 32 mA from the backplane 5 VDC logic bus and requires an external 24 VDC supply (18 to 30 VDC range) drawing 120 mA to power the analog output driver circuits.

Q: How is the default fail-safe behavior configured when the CPU enters STOP mode?

A: Fail-safe output state is configured via the DEF0 jumper located on the removable terminal block assembly, selecting between holding the last valid analog output or forcing a 0 VDC output state.

Q: Does the IC693ALG390C support current loop (4-20 mA) output signals?

A: No. The IC693ALG390C is designed strictly for -10 to +10 VDC voltage output applications; current loop outputs require dedicated current output modules such as the IC693ALG391.

Field Installation Guidelines

1. Isolate all main power sources to the Series 90-30 baseplate and external 24 VDC power supply before inserting or servicing the IC693ALG390C module.
2. Seat the module firmly into its assigned rack slot until the upper and lower mounting clips click to ensure proper backplane connector alignment.
3. Wire field analog devices using twisted, shielded pair cables, connecting cable shields at a single panel chassis ground terminal to mitigate noise interference.
4. Verify external 24 VDC supply voltage ripple remains under 10% to prevent signal drift or accuracy degradation on the -10 to +10 VDC output channels.
5. Set the DEF0 fail-safe jumper on the terminal block assembly according to process safety constraints before energizing the system rack.