Installation
RES-403
Page 19
If the secondary current I
2
is less than 30A, the
PEX-W2 or PEX-W3 current transformer must have
two turns (
ª
ROPEX Application Report).
8.11.2 Configuration of the rotary coding
switch for the temperature range
and alloy
The settings for a temperature coefficient of
780ppm (switch position 1 and 5) are only
available on controllers manufactured as of
October 2003.
If the switch is set to "9" (as of October 2005), more
temperature ranges and alloys can be selected by
means of the ROPEX visualization software (
ª
see
section 9.10 "Diagnostic interface/visualization soft-
ware (as of October 2005)" on page 30).
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
0
5
1
2
3
4
6
7
8
9
0
5
1
2
3
4
6
7
8
9
Switch
position
0
1
4
5
8
300°C
300°C
500°C
500°C
300°C
1100ppm/K
780ppm/K
1100ppm/K
780ppm/K
3500ppm/K
e.g. Alloy-20
e.g. Alloy L
e.g. Alloy-20
e.g. Alloy L
e.g. NOREX
Temp.
range
Temp.
coefficient
Band
alloy
0 = Factory settings
SWITCH POS.
1
0
4
5
8
9
TEMP. RANGE
300°C
300°C
500°C
500°C
300°C
PC CONFIGURATION
ALLOY
780ppm/K
1100ppm/K
(L)
(A20)
1100ppm/K
(A20)
780ppm/K
3500ppm/K
(L)
(NOREX)
9
PC-CONFIGURATION
!
