Unipulse F805AT-BC Operation Manual page 177

11.TROUBLESHOOTING
DEVIATION OVER
This alarm comes on when, during system operation, control deviation goes to the
positive direction beyond the width of ALLOWABLE CONTROL DEV. (control
deviation >ALLOWABLE CONTROL DEV.)
This alarm is suppressed if DEVIATION LIM. OVER ASC. is set to zero second.
DEVIATION UNDER
This alarm indicates that, during system operation, control deviation goes to the
negative direction beyond the width of ALLOWABLE CONTROL DEV. (control
deviation < -ALLOWABLE CONTROL DEV.)
This alarm is suppressed if DEVIATION LIM. OVER ASC. is set to zero second.
DEV.EXC. OVER
This alarm indicates that, during system operation, feed rate goes to the positive
direction beyond the width of ERROR DETECTION (feed rate > target value +
ERROR DETECTION).
This alarm is suppressed if FEED RATE OVER ASC. is set to zero second.
EXC UNDER
This alarm indicates that, during system operation, feed rate goes to the negative
direction beyond the width of ERROR DETECTION (feed rate < target value -
ERROR DETECTION).
This alarm is suppressed if FEED RATE OVER ASC. is set to zero second.
DEV.LIM. OVER
This alarm indicates that, during system operation, control deviation is exceeding the
value set to CONTROL LIM (|control deviation| > CONTROL LIM.).
This error is suppressed if DEVIATION LIM. OVER ASC. is set to zero second.
MASTER ERROR
When a salve is selected in master/salve operation, the slave cannot regularly receive a
format from the master due to the error.
Check the connection with the master and the settings of both master and slave.
If MASTER ERROR is still displayed, the repairing may be required.
Please inquire of our company for coping with the problem.
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