ABB ACSM1 Drive
2
Posts
1
Users
0
Reactions
693
Views
Dec 22, 2021 7:24 am
How can resolve problem F0027 PU LOST Fault in ABB ACSM1 Drive ?
1 Reply
Dec 22, 2021 7:25 am
Cause : Connection between the JCU Control Unit and the power unit of the drive is lost.
Check the connections between the JCU Control Unit and the power unit.
If the JCU is powered from an external supply,
ensure that parameter 95.01 CTRL UNIT SUPPLY is set to (1) External 24V
