7.5 Solutions for Simple Faults during Commissioning
Simple faults Solutions
Over current (OC-1 or OC-2) occurs dur‐
ing acceleration
Increase the acceleration time
Over voltage (OE-3) occurs during decel‐
eration
Increase the deceleration time
Over current (SC, OC-1 or OC-2) occurs
immediately after pressing the Run key
Incorrect wiring. Check if U, V, W outputs
of the main circuit are shorted or grounded
The motor runs in the direction opposite to
expected
Change the sequence of any two phases
of U, V and W
The motor vibrates and runs in uncertain
directions after each starting
One phase of U, V and W is disconnected
(output phase loss)
Fig.7-4: Solutions for simple faults during commissioning
Bosch Rexroth AG
Commissioning
DOK-RCON03-EFC-3600***-IT01-EN-P
Rexroth Frequency Converter EFC 3600
52/235
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