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266 Unidrive M702 User Guide
Issue Number: 3
Power Comms Communication has been lost / errors detected between power, control and rectifier modules
90
The Power Comms trip is initiated if there is no communications between power, control or the rectifier module or if
excessive communication errors have been detected. The reason for the trip can be identified by the sub-trip number.
Recommended actions:
• Hardware fault – Contact the supplier of the drive
Power Data Power system configuration data error
220
The Power Data trip indicates that there is an error in the configuration data stored in the power system.
Recommended actions:
• Hardware fault – Contact the supplier of the drive
Power Down Save Power down save error
37
The Power Down Save 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.
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:
• Remove any option modules and perform a reset
• Remove encoder connection and perform a reset
• Hardware fault within the drive – return the drive to the supplier
Trip Diagnosis
Source xx y zz
Control
system
00 0
01: No communications between the control system and the power
system
02: Excessive communication errors between the control system and
power system
Power module
number
Rectifier
number
00: Excessive communications errors detected by the rectifier module
Source xx y zz Description
Control
system
00 0 01 No data was obtained from the power board.
Control
system
00 0 02 There is no data table in node 1.
Control
system
00 0 03
The power system data table is bigger than the space available in
the control pod to store it.
Control
system
00 0 04 The size of the table given in the table is incorrect.
Control
system
00 0 05 Table CRC error.
Control
system
00 0 06
The version number of the generator software that produced the
table is too low.
Control
system
00 0 07
The power data table version does not match the power board
hardware identifier
Power
system
Power
module
number
000
The power data table used internally by the power module has an
error.
Power
system
Power
module
number
001
The power data table that is uploaded to the control system on
power up has an error.
Power
system
Power
module
number
002
The power data table used internally by the power module does
not match the hardware identification of the power module.
Source xx y zz Description
Control
system
00 0
00 Internal power supply overload.
Power
system
Power module number
Rectifier
number
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