Inovance SV660P, S810N & IS620P Servo Drive
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Nov 15, 2024 11:52 am
Cause : S-ON signal invalid comes when servo drive is enabled internally, external S-ON signal is valid.
Er.121 fault in inovance IS650 servo drive indicates S-ON signal invalid. This means servo drive is enabled internally, external S-ON signal is valid.
- Check whether auxiliary functions (H0D-02, H0D-03, H0D-12) are used and whether DI function FunIN.1: S-ON is ON.
- Set DI function FunIN.1: S-ON (both hardware DI and virtual DI) to OFF.
