Factory settings
Version 1
RES-401
Page 27
7
Factory settings
The RESISTRON
®
temperature controller RES-401 is configured in the factory as follows:
I
R
signal incorrect
- Up to September 2005: DIP switches 4 + 5 configured
incorrectly (I
2
range)
- As of October 2005: I
2
outside permissible range
from 30…500A
Turns through current transformer
incorrect
- Check number of turns (two or more turns required for
currents < 30A)
Internal controller fault
- Hardware fault (replace controller)
DIP switches
for
secondary voltage
U
2
and current I
2
(up toSeptember
2005)
U
2
= 6…60VAC
I
2
= 30…100A
DIP switches:
2 ON
1, 3, 4, 5 OFF
These switches are automatically set by
the AUTORANGE function on all
controllers manufactured as of October
2005.
Fault area
Explanation
Possible causes
3
2
1
4 5
ON
OFF
