MaintenanceFP2/FP2SH9 − 39.1 Replacement of Spare Parts9.1 Replacement of Spare Parts9.1.1 Backup BatteryLifetime of Backup BatteryThe life of the backup battery will eventually expire and therefore it is important to re-place it with a new battery periodically. The battery lifetime will differ depending on theoperating conditions (i.e., ambient temperature) and the type of expansion memoryunit. Refer to the table below for a guide as to when to replace the battery.Expansion memory unit typeinstalledBattery lifetime(ambient temperature: 55°C/131°F)No expansion memory unit For FP2: 10,000 hours or more(typical lifetime in actual use: approx. 13,000 hours)For FP2SH: 3,500 hours or more(typical lifetime in actual use: approx. 31,000 hours)FP2−EM1 (Model No. AFP2201) For FP2: 9,000 hours or more(typical lifetime in actual use: approx. 12,000 hours)FP2−EM2 (Model No. AFP2202)FP2−EM3 (Model No. AFP2203)For FP2: 8,000 hours or more(typical lifetime in actual use: approx. 12,000 hours)FP2−EM6 (Model No. AFP2206) For FP2: 8,500 hours or more(typical lifetime in actual use: approx. 12,500 hours)FP2−EM7 (Model No. AFP2209) For FP2: 10,000 hours or more(typical lifetime in actual use: approx. 13,000 hours)For FP2SH: 3,500 hours or more(typical lifetime in actual use: approx. 31,000 hours)Model No. AFP2208 For FP2SH: 3,500 hours or more (typical lifetime in actual use: approx.31,000 hours)A drop in the battery voltage can be confirmed with special internal relays R9005 andR9006, the ERROR LED and BATT. LED. Be sure to replace new battery within a week.IC memory card Battery lifetime (Ambient temperature of 25 °C)yFP2SHAFP2209 Approx 3 years or moreThe battery voltage of IC card is detected only once when the CPU unit is powered on.An error will not be determined if the battery is replaced during power−on.If the battery voltage has dropped, the ERROR LED lights, R9101 or R9102 on, anderror code K55 or K54 is stored in special data register DT90000. Error codes can beconfirmed using programming tools.Backup batteryPLC Type Part number DescriptionFP2 CPU unit AFC8801 Lithium battery CR2450 or equivalent ——————FP2SH CPU unit AFP8801 —————— Common to FP3 and FP10SHIC memory card AFP2806 —————— BR−1225A/B
