|Question:||When entering Motor Rated Current (parameter E2-01) into an E7 drive, an OPE02 fault appears on the display. What can cause this, and how is the fault cleared? |
- ONE POSSIBLE CAUSE:
The drive requires the Full Load Amperage value in E2-01 to always be greater than the No Load Current value in E2-03. If this requirement is not met, an OPE02 fault will occur.
The drive compares the value entered into E2-01 to the "No Load Current" value in parameter E2-03. E2-03 is factory preset according to the drives capacity rating.
One reason for attempting to enter an E2-01 value that is less than E2-03 may be that the drive is oversized for the motor. In such case, parameter E2-01 can be set as low as 10% of the Drive output current rating. This parameter represents the Full Load Amperage of the motor and the drive uses this value to protect the motor against over loaded conditions.
- HOW TO CLEAR:
To remedy this situation, the value in E2-03 can be lowered until the drive accepts the value being put into E2-01.
For additional information on parameter E2-01 (Motor Rated Current), and its requirements, please refer to page 5-31 of the E7 User Manual.
|Product:||E7 Drive |
|Category:||Alarm; Programming; Troubleshooting|
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