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320 Unidrive M Regen Design Guide
Issue Number: 4
Configuration The number of power modules installed is different from the modules expected
111
The Configuration trip indicates that the Number Of Power Modules Detected (11.071) does not match the previous value
stored. The sub-trip value indicates the number of power modules expected.
Recommended actions:
• Ensure that all the power modules are correctly connected
• Ensure all the power modules have powered up correctly
• Ensure that the value in Pr 11.071 is set to the number of power modules connected
•Set Pr11.035 to 0 to disable the trip if it is not required
This trip is also initiated if the number of external rectifiers connected to each power module is less than the number
defined by Number Of Rectifiers Expected (11.096). If this is the reason for the trip the sub-trip is 10x where x is the number
of external rectifiers that should be connected.
Recommended actions:
• Ensure that all the external rectifiers are connected correctly.
• Ensure that the value in Number Of Rectifiers Expected (11.096) is correct.
Control Word Trip initiated from the Control Word (06.042)
35
The Control Word trip is initiated by setting bit 12 on the control word in Pr 06.042 when the control word is enabled
(Pr 06.043 = On).
Recommended actions:
• Check the value of Pr 06.042.
• Disable the control word in Control Word Enable (Pr 06.043)
Bit 12 of the control word set to a one causes the drive to trip on Control Word
When the control word is enabled, the trip can only be cleared by setting bit 12 to zero
Current Offset Current feedback offset error
225
The current feedback offset is too large to be trimmed correctly. The sub-trip relates to the output phase for which the offset
error has been detected.
Recommended actions:
• Ensure that there is no possibility of current flowing in the output phases of the drive when the drive is not enabled
• Hardware fault – Contact the supplier of the drive
Data Changing Drive parameters are being changed
97
A user action or a file system write is active that is changing the drive parameters and the drive has been commanded to
enable, i.e. Drive Active (10.002) = 1.The user actions that change drive parameters are loading defaults, changing drive
mode, or transferring data from an NV memory card or a position feedback device to the drive. The file system actions that
will cause this trip to be initiated if the drive is enabled during the transfer are writing a parameter or macro file to the drive,
or transferring a derivative or user program to the drive. It should be noted that none of these actions can be started if the
drive is active, and so the trip only occurs if the action is started and then the drive is enabled.
Recommended actions:
Ensure the drive is not enabled when one of he following is being carried out:
• Loading defaults
• Changing drive mode
• Transferring data from NV Media Card or position feedback device
• Transferring user programs
Derivative ID There is a problem with the identifier associated with derivative image which customizes the drive.
247
There is a problem with the identifier associated with derivative image which customizes the drive. The reason for the trip is
given by the sub-trip as follows:
Trip Diagnosis
Sub-trip Reason
1 There should be a derivative image in the product but this has been erased.
2 The identifier is out of range.
3 The derivative image has been changed.
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