Startup and operation
Page 18
RES-409
9.2
Controller configuration
The controller must be switched off in order
to configure the coding switches and plug-in
jumpers.
9.2.1
Configuration of the DIP switches
for secondary voltage and current
Automatic configuration (AUTORANGE)
(controllers manufactured as of February 2007)
The secondary voltage and current ranges are
automatically configured by the automatic calibration
function (AUTOCAL). The voltage is configured in the
range from 0.4VAC to 120VAC and the current in the
range from 30A to 500A. If the voltage and/or current
are outside the permissible range, a detailed error
message appears on the controller (
see
section 10.16 "Error messages" on page 45).
Configuration with DIP switches
(controllers manufactured up to January 2007)
Set the DIP switches for matching the secondary
voltage U
2
and the secondary current I
2
to the correct
position for
your
application.
You can find the exact configuration of the
DIP switches in the ROPEX Application
Report calculated for your particular application.
If the secondary current I
2
is less than 30A, the
PEX-W2 or PEX-W3 current transformer must have
two turns (
ROPEX Application Report).
!
!
3
2
1
4 5
ON
OFF
1...10V
6...60V
20...120V
ON
OFF
OFF
OFF
ON
OFF
OFF
OFF
ON
30...100A
60...200A
120...400A
OFF
ON
ON
OFF
OFF
ON
DIP switch
DIP switch
1 2
U
2
I
2
3
4
5
3
2
1
4
5
4
3
O
N
O
F
F
U (
V
)
2
1-
10
SW
IT
C
H
ON
Factory settings
2x
