KEB E.EnC1 fault code meaning

Series: COMBIVERT F5(elevator,English version)

Encoder Signal Loss

AC drive

Meaning: Error signal loss or during absolute position search: wrong rotation direction or too much drag | One or more of the signals A+, A-, B+, B-, Z+, Z- are missing. One or more of the differential signals is latched, i.e. both A+ and A- at are +5V at the same time. Check the encoder connections as well as the signal levels. All + and - signal should be opposite ( 0V and >2.0V) while the motor is standing still. If learning encoder position on a PM motor first try moving car to a different art of the hoist way and this fault occurs, if no success then change LF.28.

Possible causes

Source: KEB COMBIVERT F5 Elevator Drive Manual (EN) P111