ESTAmat PFC-N
D.No.13157 - Rev. 02
Operating Instruction MV1181
Page 33 of 36
8.5 Reset defective steps respectively add aditional steps
If the controller has a step recognized as defective (3 switching operations without result), it
will be excluded for 24 hours from the regulation. After this period, the step is tested again
from the controller. If the controller can detect the step it will again be included in the control.
If not the step is blocked again for 24hours after 3 unsuccessful switching cycles. Defect steps
are in the "INFO" menu with the step type "flty" marked and flashing in the step indication.
When a compensation system need additional capacitors to be added, proceed as described
below:
Procedure:
Select item "403" in expert menu and use the
buttons to select the corresponding step.
Confirm with
(
) button and use the
buttons to adjust step type "AUTO".
Feature:
If a step because of power loss greater than 30% is exchanged, it's appropriate for the step, to
program the nominal step size by hand. Select in menu "402" the affected step and program
the nominal step size.
If the alarm was triggered by a defective contactor should, upon the exchange took place, the
accumulated switching operation under item "404" set to "0".
