ABB CM Series Operating And Installation Instructions page 12

c) Insulation resistance monitoring w/o fault storage e, auto reset, 2 x 1 c/o
A1-A2
S1-S3
S2-S3
Measured value
Hysteresis
Prewarning
Hysteresis
Warning
Open-circuit principle
U: green LED
F: red LED
R: yellow LED
Closed-circuit principle
U: green LED
F: red LED
R: yellow LED
d) Insulation resistance monitoring with fault storage f, manual reset, 2 x 1 c/o
A1-A2
S1-S3
S2-S3
Measured value
Hysteresis
Prewarning
Hysteresis
Warning
Open-circuit principle
U: green LED
F: red LED
R: yellow LED
Closed-circuit principle
U: green LED
F: red LED
R: yellow LED
t
h
s
11-14
11-12
21-24
21-22
g
11-14
11-12
21-24
21-24
t = Start-up time, fixed, min. 15 s
s
t
h
s
11-14
11-12
21-24
21-22
g
11-14
11-12
21-24
21-24
t = Start-up time, fixed, min. 15 s
s
i
i
t
s
12