Matrix 0850 - Page 226

0850/0850-T1 User Manual
Matrix Machine Tool (Coventry) Limited 226 / 231
Edition: 08/2013
700124 Minimum dresser speed not set
Cause:
The minimum dresser spindle speed is set to 0 or >= the maximum grinding speed.
Remedy:
Check the maximum and minimum dresser spindle speed settings in Menu Select > Matrix > Setup
Data
Min speed should be >=100rpm but less than the max speed
700125 Maximum dresser speed not set - check setup data
Cause:
The maximum dressing disc/roll spindle speed is set to 0 or below the minimum speed.
Remedy:
Check the maximum dresser spindle speed settings in Menu Select>Matrix>Setup Data Max speed
should be <=600rpm.
700127 Dresser controller unit fault
Cause:
The dresser spindle drive amplifier has developed a fault or the i/p supply is not available.
Remedy:
Check the status indicator on the drive. If the LED indicator is red then the fault may be due failure
of an electronic component in the amplifier circuit board.
Check the condition of the power and signal cables connecting to the dresser spindle. If cables
appear damaged then the 5VDC supply to the spindle encoder may be shorted out. Replace the
complete cable if necessary.
Check circuit breaker protecting the input supply to the drive amplifier has not tripped. Reset if
necessary.