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Function diagrams
a) Insulation resistance monitoring w/o fault storage (S2-S3), auto reset
Measured value
Hysteresis
Threshold value
Closed-circuit principle
U: green LED
F: red LED
R: yellow LED
b) Insulation resistance monitoring with fault storage (S2-S3) manual reset
Measured value
Hysteresis
Threshold value
Closed-circuit principle
U: green LED
F: red LED
R: yellow LED
A1-A2
S1-S3
S2-S3
t
s
11-14
11-12
t
= Start-up time, fixed
s
CM-IWS.1: min. 15 s
CM-IWS.2: max. 10 s
A1-A2
S1-S3
S2-S3
t
s
11-14
11-12
t
= Start-up time, fixed
s
CM-IWS.1: min. 15 s
CM-IWS.2: max. 10 s
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