
2TLC010073M0201 Rev.G
35
Error code
Error type
Procedure for correction
E.51
External error. Signal short on
T1
Examine T1 for short circuits
E.52
External error. Signal short on
T2
Examine T2 for short circuits
E.53 – E.58
Internal error
1. Power cycle the safety relay
2. If the error code remains,
contact your ABB
representative.