Operating instructions
multicomp
Version 4.00
Page 53 of 62
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If the
setting was changed
the following display appears after the third line in the hot-key area of the display
when the
¥
key (scrolling function) is pressed:
P
O
N
M
Display hot-key area
I
I
I
I
I
I
I
I
Leave settings menu and save
I
Scroll through lines in the value area
Leave setting menu without saving
5.3 Note on detecting errors
Undercompensation, not enough stages are switched on.
Check controller for error displays (refer to Section 2.13.3). If the target cos phi is set to 0.8 capacitive, the
capacitors have to be switched on. If the facility is not over-dimensioned, almost all stages need to be switched
on.
Check the main fuse and group fuses of the facility. All values are entered in the enclosed documents. The
group fuses must display at least 1.7-times the value of the capacitor power.
If the fuses do not hold, despite their being correctly selected, the groups must be checked individually for
excessive current input and for defective contactors.
Undercompensation, all stages are switched on.
The existing facility is not sufficient (e.g. due to new inductive consumers).
Please contact your local representative (extend your facility). See the cover sheet of these operating
instructions for the service telephone number, or menu item Extras / submenu 7.
Overcompensation, too many stages are switched on.
Check controller settings (target cos phi capacitive?).
Transformer connected in the wrong position?
Controller switches a lot, in particular during low load (at the weekend, during the night).
Check programming of the transformer ratio.
Switch on a small stage permanently (manually), if required.
If no cause of error is found, please call your local representative. The phone number can be found on
the cover sheet of these operating instructions or in the menu item Extras / submenu Service
NO
¥
YES
