代码 SRVO-042: MCAL alarm(Group:%d Axis:%d)
问题描述与安全警告
Fanuc R-30i Series Robot Controller 触发了严重的 MCAL alarm(Group:%d Axis:%d) 警报。需要由合格的操作员或维修技师立即处理，以防止在制造周期中对设备造成二次损坏或导致零件报废。在接触电气控制箱之前，请务必确保遵循标准安全和停机挂牌 (LOTO) 程序。
官方故障排除步骤
Cause: This alarm means that the contacts of the magnetic contactor have stuck together. The alarm condition occurs if the magnetic contactor is already on when an attempt is made to turn it on. The alarm condition is detected between the time the contact sticking occurs, and the time an attempt is made to turn it on. Remedy: 1. Check the magnetic contactor, and replace it if necessary. 2. If the contacts of the magnetic contactor have stuck to each other, turn off the circuit breaker. If the power is switched off without turning off the circuit breaker, the servo amplifier might get damaged, because the stuck contacts keep 3-phase 200 VAC applied to the servo amplifier. 3. Replace the E-Stop unit. 4. Replace the servo amplifier.
Source: FANUC Robot R-30iA Alarm Code List Operator's Manual
Last reviewed: 2026-07-01 · Verified against the manufacturer’s official documentation.
关于 Fanuc R-30i Series Robot Controller 警报
由 Fanuc 制造的工业控制器具有广泛的诊断系统，用于保护内部电路和机械连杆。当 R-30i Series Robot Controller 出现类似 SRVO-042 的错误代码时，通常表示指令值与实际传感器反馈之间存在不匹配。
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