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TROUBLESHOOTING E53 FAULT
WHAT IS AN E53 FAULT - An E53 fault is a over-
HOW IS AN E53 FAULT DETERMINED – When the VFD is operating in a control mode of (AA121 = 8, 9, or 10) the VFD will use the
-– CE123. If
ue becomes greater than the over--
•
• -17 without weight suspended from th
might point to an issue with the output of the VFD or the motor.
• Check to see if the motor brake is releasing correctly.
• Check the over-– CE123, the normal
.
• If the fault is occurring at start you will need to determine if the encoder is working. To do this remove the encoder from the
-
n. You can also navigate to VFD
parameter dA-
• If a load is stuck in the air, you can change the VFD control mode to open loop SLV AA121 = 08 for the purpose of lowering
the
disabled.
• If this fault is occurring at random check to make sure the motor brake circuit is not dropping out randomly. Check to see if
the encoder signal in unstable by using dA-08 detected speed monitor, this value while run should be close to the set-
-08 is + / -
• Contact Detroit Hoist for further assistance.
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