
Digitax HD M753 Control User Guide
247
Issue Number: 3
Temp Feedback
Internal thermistor has failed
218
The
Temp Feedback
trip indicates that an internal thermistor has failed. The thermistor location can be identified by the
sub-trip number.
* For a parallel power-module system the rectifier number will be zero as it is not possible to determine which rectifier has
detected the fault.
Recommended actions:
•
Hardware fault – Contact the supplier of the drive
Th Brake Res
Brake resistor over temperature
10
The
Th Brake Res
is initiated, If hardware based braking resistor thermal monitoring is connected and the resistor
overheats. If the braking resistor is not used then this trip must be disabled with bit 3 of Action
On Trip Detection
(10.037) to
prevent this trip.
Recommended actions:
•
Check brake resistor wiring
•
Check braking resistor value is greater than or equal to the minimum resistance value
•
Check braking resistor insulation
Th Short Circuit
Motor thermistor short circuit
25
The
Th Short Circuit
trip indicates that the motor thermistor connected to the drive is short circuit or low impedance i.e.
< 50
.
The location of the trip can be identified by the sub-trip number.
Recommended actions:
•
Check thermistor continuity
•
Replace motor / motor thermistor
Thermistor
Motor thermistor over-temperature
24
The
Thermistor
trip indicates that the motor thermistor connected to the drive has indicated a motor over temperature. The
location of the trip can be identified by the sub-trip number.
Recommended actions:
•
Check motor temperature
•
Check
Threshold Level
(07.048)
•
Check thermistor continuity
Undefined
Drive has tripped and the cause of the trip is Undefined
110
The
Undefined
trip indicates that the power system has generated but did not identify the trip from the power system. The
cause of the trip is unknown.
Recommended actions:
•
Hardware fault – return the drive to the supplier
Trip
Diagnosis
Source
xx
y
zz
Control PCB
00
0
01: Control PCB thermistor 1
02: Control PCB thermistor 2
03: I/O PCB thermistor
Power
system
Power module
number
0
00: Temperature feedback provided via power system comms.
Power
system
01
Rectifier number*
Always zero
Frame 7
Frame 8
Frame 9 & 10
21:
Rectifier
thermistor
Power PCB
thermistor 1
SMPS thermistor
22:
Power PCB
thermistor
Power PCB
thermistor 2
Heat Sink Fan
SMPS thermistor
23:
Power PCB
thermistor
Rectifier
thermistor
Power PCB
thermistor
Sub-trip
Source
4
Position feedback interface
Sub-trip
Source
4
Position feedback interface
Summary of Contents for Digitax HD M753 EtherCAT
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