Specifications

55
Status diagnosis and repair
Service-Codes Displayed
Your Conergy WR unit is equipped with a self diagnostic system which
automatically identifies a large number of possible defects by itself and
displays them on the screen. It is thus possible to quickly ascertain de-
fects in the Conergy WR unit, in the photovoltaic system as well as instal-
lation and operation errors.
Whenever the self diagnostic system has identified a particular defect, the
respective service code is displayed on the screen.
Note! Display of a service code for a short time may be a result of
the control procedure of your Conergy WR unit. If subsequently it
continues to operate normally, there has not been a case of an
error.
Service dis-
play
As soon as the no-load voltage exceeds 150 V, the Conergy WR unit
starts synchronizing the network (display shows „SYNC
AC
“).
General ser-
vice codes
As long as the no load voltage of the solar modules is not sufficient, the
screen displays the information „DC
LOW
“.
Note! Basically the order of sequence for placing the cards does
not matter.
Important however is:
- One Conergy WR can have only one COM card
- One network can contain only one data recorder.
More information on the various system upgrade possbilities you will find in
the respective operating manuals.
Example
(continued)