Unidrive M400 User Guide
187
Issue Number: 2
Slot 1 Watchdog
Option module watchdog function service error
201
The
Slot 1 Watchdog
trip indicates that the option module installed in Slot 1 has started the option watchdog function and
then failed to service the watchdog correctly.
Recommended actions:
•
Replace the option module
Soft Start
Soft start relay failed to close, soft start monitor failed
226
The
Soft Start
trip indicates that the soft start relay in the drive failed to close or the soft start monitoring circuit has failed.
Recommended actions:
•
Hardware fault – Contact the supplier of the drive
STO Error
No Safe Torque Off board fitted
234
STO board not fitted
Stored HF
Hardware trip has occurred during last power down
221
The
Stored HF
trip indicates that a hardware trip (HF01 –HF19) has occurred and the drive has been power cycled. The
sub-trip number identifies the HF trip i.e. stored HF19.
Recommended actions:
•
Enter 1299 in Pr
mm.000
and press reset to clear the trip
Sub-array RAM
RAM allocation error
227
The
Sub-array RAM
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.
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.
Recommended actions:
•
Hardware fault – Contact the supplier of the drive
Th Brake Res
Brake resistor over temperature
10
The
Th Brake Res
trip is initiated if the 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 terminal 14 (digital input 5) on the control
connections, is short circuit or low impedance (<50
Ω
).
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 terminal 14 (digital input 5) on the control connections
has indicated a motor over temperature.
Recommended actions:
•
Check motor temperature
•
Check thermistor continuity
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
Option slot 1 set-up
15
4
Source
xx
y
zz
Power system
01
0
Thermistor location defined by zz
Summary of Contents for Unidrive M400
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