Digitax HD M753 Control User Guide
231
Issue Number: 3
EEPROM Fail
Default parameters have been loaded
31
The
EEPROM Fail
trip indicates that default parameters have been loaded. The exact cause/reason of the trip can be
identified from the sub-trip number.
The drive holds two banks of user save parameters and two banks of power down save parameters in non-volatile memory.
If the last bank of either set of parameters that was saved is corrupted a
User Save
or
Power Down Save
trip is produced.
If one of these trips occurs the parameters values that were last saved successfully are used. It can take some time to save
parameters when requested by the user and if the power is removed from the drive during this process it is possible to
corrupt the data in the non-volatile memory.
If both banks of user save parameters or both banks of power down save parameters are corrupted or one of the other
conditions given in the table above occurs EEPROM Fail.xxx trip is produced. If this trip occurs it is not possible to use the
data that has been saved previously, and so the drive will be in lowest allowed drive mode with default parameters. The trip
can only be reset if Pr
mm.000
(mm.000) is set to 10, 11, 1233 or 1244 or if
Load Defaults
(11.043) is set to a non-zero
value.
Recommended actions:
•
Default the drive and perform a reset
•
Allow sufficient time to perform a save before the supply to the drive is removed
•
If the trip persists - return drive to supplier
Encoder 1
Drive position feedback interface power supply overload
189
The
Encoder 1
trip indicates that the drive encoder power supply has been overloaded. Terminals 13 &14 of the 15 way D
type connector can supply a maximum current of 200 mA @ 15 V or 300 mA @ 8 V and 5 V.
Recommended actions:
•
Check encoder power supply wiring
•
Disable the termination resistors (Pr
03.039
set to 0) to reduce current consumption
•
For 5 V encoders with long cables, select 8 V (Pr
03.036
) and install a 5 V voltage regulator close to the encoder
•
Check the encoder specification to confirm if it is compatible with the encoder port power supply current capability
•
Replace the encoder
•
Use an external power supply with higher current capability
Encoder 2
Drive encoder (Feedback) wire break
190
The
Encoder 2
trip indicates that the drive has detected a wire break on the 15 way D-type connector on the drive. The
exact cause of the trip can be identified from the sub-trip number.
Recommended actions:
•
Ensure that the position feedback device type selected in Pr
03.038
is correct for the position feedback device
connected to the P1 interface on the drive.
•
If wire break detection on the drive encoder input is not required, set Pr
03.040
= XXX0 to disable the Encoder 2 trip
•
Check cable continuity
•
Check wiring of feedback signals is correct
•
Check encoder power supply is set correctly (Pr
03.036
)
•
Replace encoder
Trip
Diagnosis
Sub-trip
Reason
1
The most significant digit of the internal parameter database version number has changed
2
The CRCs applied to the parameter data stored in internal non-volatile memory indicate that a valid set
of parameters cannot be loaded
3
The drive mode restored from internal non-volatile memory is outside the allowed range for the product
or the derivative image does not allow the previous drive mode
4
The drive derivative image has changed
5
The power stage hardware has changed
6
The internal I/O hardware has changed
7
The position feedback interface hardware has changed
8
The control board hardware has changed
9
The checksum on the non-parameter area of the EEPROM has failed
Sub-trip
Reason
1
Drive position feedback interface 1 on any input
2
Drive position feedback interface 2 on any input
11
Drive position feedback interface 1 on the A channel
12
Drive position feedback interface 1 on the B channel
13
Drive position feedback interface 1 on the Z channel
Summary of Contents for Digitax HD M753 EtherCAT
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