65
Recognition / resetting of defective stages
If the controller has identified a stage as defective (3 consecutive switching cycles without mains
reaction) and blocked this (stage type =
“
Flty
”), this stage is blocked for the control for 24 hours.
Defective stages are only locked, if the function “Lock faulty stages” is activated (SETUP/309 = YES).
After this blocking time, the controller resets the stage type of this stage to
“
AUTO
” and tests this stage
again, if necessary. If again no mains reaction is identified to 3 consecutive switching cycles, this stage
is locked by the control again for 24 hours (stage type =
“
Flty
”).
Locked faulty stages are displayed with the stage type
“
Flty
” in the menu “
INFO
”. The respective stage
symbol of the stage is flashing in the stage display.
If the defective stage was changed resp. the defective fuse was replaced, the stage type can be
switched manually back to
“
AUTO
” (SETUP/100/OUt or SETUP/403). Then, the stage is available to
the control for switching again resp. may be switched again in manual operation.
If a defective power contactor was responsible for the recognition of the faulty stage, the switching cycle
counter of this stage (SETUP/404) should be reset manually to 0 after changing the contactor in order
to restart the switching cycle monitoring for the contactor.
