GE Fanuc IC200ACC403 VersaMax Micro Backup Battery

GE Fanuc IC200ACC403 VersaMax Micro Backup Battery — CR2032 Lithium, 3.0V

The IC200ACC403 is a CR2032 lithium coin cell backup battery for GE Fanuc VersaMax Micro PLC systems. It provides data retention power for volatile memory, ensuring program logic, configuration, and runtime data are preserved during power loss. The battery is monitored by the PLC via diagnostic status bits for predictive maintenance.

Key Specifications

• Manufacturer: GE Fanuc / Emerson
• Series: VersaMax Micro
• Type: PLC Memory Backup Battery Assembly
• Battery Chemistry: Lithium primary cell
• Nominal Voltage: 3.0 V DC
• Nominal Capacity: ~225 mAh (CR2032-WR standard)
• Physical Size: 25 mm × 2.5 mm (CR2032 coin cell with wire leads)
• Connection: Pre-attached wire leads for direct terminal connection
• Shelf Life: Up to 5 years at 30°C; ~3 years at 55°C
• Backup Duration (Power-Off): Minimum ~4 months at 55°C
• Battery Monitoring: PLC diagnostic fault table / system status bits %SA011, %SA014
• Weight: ~0.45 kg (assembly with packaging)

Compatibility

• Required for data retention on: IC200UDR005, IC200UDR010, IC200UAL006, IC200UAR028, and other VersaMax Micro 23/28-point PLCs
• Note: Battery is not included with Micro PLC units — must be ordered separately

Installation Guide

1. Power off the PLC before battery replacement.
2. Locate the internal battery holder on the VersaMax Micro PLC.
3. Connect the pre-attached wire leads to the designated battery terminals.
4. Secure the CR2032 cell in the holder.
5. Power on and verify battery status via PLC diagnostics (no fault bits %SA011/%SA014).

FAQ

Q: What happens when the battery is depleted?
A: The PLC may lose stored data (program, configuration, runtime memory) upon power loss. Replace immediately when diagnostics indicate low voltage.

Q: Is the battery monitored by the PLC?
A: Yes. Battery health is tracked via built-in diagnostic status bits and fault reporting.

Q: Can I replace the battery while the system is running?
A: Controlled shutdown is recommended. Some configurations allow hot replacement, but consult your system manual.

Q: What is the actual capacity — 225 mAh or 2200 mAh?
A: Based on CR2032-WR standard specifications from battery specialists, the nominal capacity is ~225 mAh. Some sources list 2200 mAh, which may be a labeling error or unit confusion. Always verify with the physical battery label.

Q: How often should I replace it?
A: Every 3–5 years depending on ambient temperature, or when PLC diagnostics report low battery.

Selection Tips

• VersaMax Micro 23/28-point PLCs: IC200ACC403 (CR2032 lithium)
• VersaMax Micro 64-point and other models: IC200ACC414 / IC200ACC414A
• Always verify: PLC model and battery holder type before ordering
• Stock spare batteries for critical applications to avoid unplanned data loss