Operating instructions multicomp
Page 8 of 29 Version 1.00
EDEBDA0144 / 0511-1 GB
4 Commissioning the facility
4.1 General commissioning notes
• Switch on a sufficient number of inductive consumers (e.g. motors) prior to switching on the compensation
facility. A transformer current of at least 15 mA needs to flow in the secondary circuit for the controller to be
activated. Below this limit the display will show “missing transformer current”.
• The transformer connection needs to be checked (transformer ratio too high?).
• Before switching on the controller, measurement voltage must be available.
No error message is displayed, but the learning mode cannot be started.
• If stage power has been programmed, the power factor CosPhi should be displayed after initialization.
Normally, when no capacitors are connected, CosPhi is in the range of 0.6 to 09. inductive,
(e.g. CosPhi 0.80 ind).
• If a capacitive value is displayed, or if there is a flashing G symbol, the phase allocation of current and
voltage measurement is incorrect. In the Commissioning programming menu, the phase allocation can be
changed using the function Rot.field U and Rot.field I (provided that there is no generator operation at the
time).
• The first switching operation may take up to 60 seconds. The stages are switched in a set 1 second
interval until compensation. The CosPhi displayed has to converge target CosPhi.
4.2 Compensation facility with controller
The controller is preset as a component of a compensation facility (refer to connection diagram of
compensation facility). The following need to be programmed or checked:
• Target CosPhi according to energy supplier regulations.
• Primary and secondary current in the main circuit according to the mounted transformer.
• If required, set measurement voltage transformer data.
• If no stage power has been programmed, the controller will switch into the Commissioning menu.
Subsequently, stage power programming can be performed in the settings menu, or using the learning
process.
The programmed values are saved on an EEPROM and will thus not be lost after a network failure.
b
Note!
The learning process is started in the Commissioning menu,
in the Activate learning mode submenu.
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