User guide

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132 Unidrive M100 User Guide
Issue Number: 1
Pb.Er Communication has been lost / errors detected between power control
93
The Pb.Er trip is initiated if there is no communications between power control. The reason for the trip can be identified by
the sub-trip number.
Recommended actions:
• Hardware fault – Contact the supplier of the drive
Pb.HF Power board HF
235
Power processor hardware fault.
Recommended action:
• Hardware fault - Contact the supplier of the drive
Pd.S Power down save error
37
The Pd.S trip indicates that an error has been detected in the power down save parameters saved in non-volatile memory.
Recommended actions:
• Perform a 1001 save in Pr mm.000 to ensure that the trip doesn’t occur the next time the drive is powered up.
PH.Lo Supply phase loss
32
The PH.Lo trip indicates that the drive has detected an input phase loss or large supply imbalance. The drive will attempt to
stop the motor before this trip is initiated. If the motor cannot be stopped in 10 seconds the trip occurs immediately. The
PH.Lo trip works by monitoring the ripple voltage on the DC bus of the drive, if the DC bus ripple exceeds the threshold, the
drive will trip on PH.Lo. Potential causes of the DC bus ripple are input phase loss, Large supply impedance and severe
output current instability.
Input phase loss detection can be disabled when the drive is required to operate from the DC supply or from a single phase
supply in Input Phase Loss Detection Mode (06.047).
Recommended actions:
• Check the AC supply voltage balance and level at full load
• Check the DC bus ripple level with an isolated oscilloscope
• Check the output current stability
• Reduce the duty cycle
• Reduce the motor load
• Disable the phase loss detection, set Pr 06.047 to 2.
PSU Internal power supply fault
5
The PSU trip indicates that one or more internal power supply rails are outside limits or overloaded.
Recommended actions:
• There is a hardware fault within the drive – return the drive to the supplier
r.ALL RAM allocation error
227
The r.ALL trip indicates that an option module derivative image has requested more parameter RAM than is allowed. The
RAM allocation is checked in order of resulting sub-trip numbers, and so the failure with the highest sub-trip number is
given. The sub-trip is calculated as (parameter size) + (parameter type) + sub-array number.
Trip Diagnosis
Source xx y zz
Control
system
00 0
00: Phase loss detected based on control system feedback. The drive
attempts to stop the drive before tripping unless bit 2 of Action On Trip
Detection (10.037) is set to one.
Source xx y zz Description
Control
system
00 0
00 Internal power supply overload.
Power
system
01 1
Parameter size Value
1 bit 1
8 bit 2
16 bit 3
32 bit 4
64 bit 5
Parameter type Value
Volatile 0
User save 1
Power-down save 2
Sub-array Menus Value
Derivative image 29 2