238
Digitax HD M753 Control User Guide
Issue Number: 3
Motor Too Hot
Output current overload timed out (I
2
t)
20
The
Motor Too Hot
trip indicates a motor thermal overload based on the
Rated Current
(Pr
05.007
) and
Motor Thermal
Time Constant
(Pr
04.015
). Pr
04.019
displays the motor temperature as a percentage of the maximum value. The drive
will trip on
Motor Too Hot
when Pr
04.019
gets to 100 %.
Recommended actions:
•
Ensure the load is not jammed / sticking
•
Check the load on the motor has not changed
•
If seen during an auto-tune test in RFC-S mode, ensure the motor
Rated Current
in Pr
05.007
is
≤
Heavy duty current
rating of the drive
•
Tune the
Rated Speed
(Pr
05.008
) (RFC-A mode only)
•
Check feedback signal for noise
•
Ensure the motor rated current is not zero
•
This trip can be disabled and current limiting activated on the motor overload by setting thermal protection mode
Pr
04.016
to 1.
Name Plate
Electronic nameplate transfer has failed
176
The
Name Plate
trip is initiated if an electronic name plate transfer between the drive and the motor has failed. The exact
reason for the trip can be identified from the sub-trip number.
Recommended actions:
•
Ensure that the device encoder memory has at least 128 bytes to store the nameplate data
•
When writing the motor object (Pr
mm.000
= 11000), ensure that the device encoder memory has at least 256 bytes to
store all the nameplate data.
•
When transferring between option module and encoder, ensure that the option slot has a feedback option module
installed.
•
Check if the encoder has been initialized in
Position Feedback Initialized
(03.076).
•
Verify the encoder wiring.
OHt Brake
Braking IGBT over-temperature
101
The
OHt Brake
over-temperature trip indicates that braking IGBT over-temperature has been detected based on software
thermal model.
Recommended actions:
•
Check braking resistor value is greater than or equal to the minimum resistance value
OHt Control
Control stage over temperature
23
This
OHt Control
trip indicates that a control stage over-temperature has been detected. From the sub-trip ‘xxyzz’, the
Thermistor location is identified by ‘zz’.
Recommended actions:
•
Check enclosure / drive fans are still functioning correctly
•
Check enclosure ventilation paths
•
Check enclosure door filters
•
Increase ventilation
•
Reduce the drive switching frequency
•
Check ambient temperature
Trip
Diagnosis
Sub-trip
Reason
1
Not enough memory space to complete the transfer
2
Communication with encoder failed
3
The transfer has failed
4
The checksum of the stored object has failed
Source
xx
y
zz
Description
Control system
00
0
01
Control board thermistor 1 over temperature
Control system
00
0
02
Control board thermistor 2 over temperature
Control system
00
0
03
I/O board thermistor over temperature
Содержание Digitax HD M753 EtherCAT
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