GE IC693ACC302 High‑Capacity External Auxiliary Lithium Battery Module

Description

Basic Hardware Information

‑ Battery chemistry: Primary lithium battery (non‑rechargeable) ‑ Nominal output voltage: 3.0 VDC ‑ Capacity: 15 Ah ‑ Cable assembly: 0.6 m twisted red‑black 24 AWG wire, female 2‑pin plug connector ‑ Mechanical dimension: 145.1 × 65.0 × 39.9 mm; weight approx 0.5 kg; cabinet surface mounting via mounting holes on housing ‑ Operating ambient temperature: 0 ℃ ~ +60 ℃; storage temperature ‑40 ℃ ~ +85 ℃; relative humidity 5‑95 % non‑condensing ‑ Shelf life: 7 years typical under proper storage conditions ‑ Compatibility: Matches battery connector of IC693 Series 90‑30 power supply / CPU, IC697 Series 90‑70 CPU; cannot substitute for internal CPU‑mount small battery directly ‑ Safety certification: UL, cUL, CE ‑ Handling note: ESD‑sensitive; anti‑static wrist strap required during handling; lithium primary cell, do not charge, short‑circuit, disassemble or expose to high‑temperature source ‑ Hot‑swap note: Connector can be plugged/unplugged while PLC rack powered; avoid short‑circuiting battery pins during manipulation.

Core Functions & Features

1. Supplies 3 VDC backup power to CPU volatile RAM memory during complete rack power loss; preserves retentive registers, timer/counter values; user logic stored in flash memory remains unaffected regardless of battery condition.
2. Dramatically extends memory‑hold time compared with the small internal CPU battery. Different CPU models have distinct backup time specifications.
3. Flying‑lead separate housing allows flexible cabinet mounting location; no requirement to occupy PLC baseplate slot space.
4. Battery low status can be read within PLC fault register; low‑battery alarm prompt reminds maintenance personnel for scheduled replacement before data loss occurs.
5. Revision‑A /‑B are pin‑to‑pin compatible drop‑in replacements for base IC693ACC302; no modification required for wiring or PLC configuration.

On‑site Installation & Commissioning Notes

1. Mount IC693ACC302 on cabinet interior surface with screws, keep away from heat sources, high‑voltage components and heavy‑vibration zones. Anti‑static protection is required for handling battery unit.
2. Route twisted battery cable separately from high‑voltage AC cables to prevent electrical interference; do not stretch or pinch harness wiring. Firmly insert 2‑pin connector into CPU / power‑unit battery socket; ensure connector locks fully seated.
3. Within PLC programming software, monitor system battery‑low diagnostic bits to confirm battery detection status.
4. Perform power‑off validation test: stop PLC, cut off rack main power for several minutes, restore power‑on, verify retentive RAM data remains intact.
5. Replacement note: This is primary lithium battery; discard expired unit according to local lithium‑cell waste‑disposal regulations. After replacement, validate battery‑alarm status and RAM data retention test. Do not use generic 3 VDC battery packs without matching connector and safety rating.

Common On‑site Abnormal Conditions

‑ PLC reports battery‑low alarm: Battery end‑of‑life depletion; loose 2‑pin connector; damaged harness wiring. ‑ Retentive RAM data lost after power‑cycle: Battery fully exhausted; connector open‑circuit fault; CPU RAM hardware fault. ‑ No battery‑low alarm after battery failure: PLC system battery diagnostic function not enabled in CPU configuration. ‑ Intermittent battery fault: Vibration‑induced loose connector, harness internal wire breakage. ‑ Battery premature depletion: Cabinet ambient operating temperature continuously above 60 ℃, greatly accelerates lithium‑cell self‑discharge rate.