148 MOTOR DRIVE ALARMS
INITIALISIN G
INT ARM CUR CAL F AIL
INITIALISIN G
PRP ARM CUR CAL F AIL
9 SELF TEST MESSAGE
There is a group of self test messages that provide information about problems occuring in the drive itself
which are not related to the motion control system. These will appear when the problem occurs and are not
saved for later access. They will disappear when the appropriate action is taken to cure the problem
9.1.1 SELF TEST MESSA GE / Data corruption
The PL/X has facilities to allo w all the parameter
settings to be transferred serially from another source
using PARA METER EXCH ANGE. This may be from
another drive unit or from a computer. The process is
called DRIVE RECEIVE. Sending the parameter values
to another destination is called a DRIVE TRA NSMIT.
This alarm will appear at the end of DRIVE RECEIVE parameter transfer if the drive parameters have been
corrupted. The most likely cause for this problem is DRIVE RECEIVE of a corrupted parameter file.
The contents of the target recipe page will have been corrupted. How ever the volatile memory will still hold
the values pertaining at the time of the corruption.
If the previously prevailing parameters had been sourced from the no w corrupted
target recipe page, then it is possible to restore the original recipe. To do this , press
the left key and the drive will display the previously prevailing parameters. Then go
to the PARA METER SA VE menu and save these parameters so that the bad data held
in the target recipe page is overwritten. Unfortunately the desired ne w file cannot be
used. If the message occurs at power up then the left key r estores factory defaults.
IMPORTANT WARNING. Check that the cali bration parameters and drive personality
Iarm burden value are correct. These may also need re-entering.
See 13.13.2 DRIVE PERSON ALITY / Recipe page PIN 677
See 13.13.4 DRIVE PERSON ALITY / Armature current burden resistance PIN 680
9.1.2 SELF TEST MESSA GE / Disable GOTO, GETFROM
The ENABLE GO TO, GETFROM configuration selection
has been left in the EN ABLE state. This needs to be
disabled in order to run the drive.
9.1.3 SELF TEST MESSA GE / Self cal tolerance
This alarm will appear at po w er-up if the self
calibration of the analog inputs has exceeded their
normal tolerance.
This tolerance can be relaxed by 0.1% with each press
of the left key to enable the unit to operate, although
possibly at reduced accuracy. It indicates an aged component that has drifted slightly, or a pollution problem.
9.1.4 SELF TEST MESSA GE / Proportional armature current cal fail
This alarm will appear at po w er-up if the self calibration
of the proportional armature current amplifier has
failed. If turning the control supply off and on does not
remove the problem, then a hard ware failure is
suspected.
9.1.5 SELF TEST MESSA GE / Integral armature current cal fail
This alarm will appear at po w er-up if the self calibration
of the integral armature current amplifier has failed. If
turning the control supply off and on does not remove
the problem, then a hardware failure is suspected.
INITIALISING
D A T A CORRUPTION
Parameter name
DISA BLE G OT O, GETFRO M
INITIALISIN G
SELF C AL T OLERA NCE
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