ABB CM Serie Instructions De Montage Et De Mise En Service page 9

IV Function diagrams
a) ON-delayed over- and undervoltage
monitoring, 1 x 2 c/o contacts
L1, L2, L3
> U
> U - 5 %
Measured value
< U + 5 %
< U
t s t v
15-18
15-16
25-28
25-26
F1: red LED
F2: red LED
R/T: yellow LED
t = start-up delay fixed 200 ms
s
t = adjustable tripping delay
v
b) OFF-delayed over- and undervoltage
monitoring, 1 x 2 c/o contacts
L1, L2, L3
> U
> U - 5 %
Measured value
< U + 5 %
< U
t s
15-18
15-16
25-28
25-26
F1: red LED
F2: red LED
R/T: yellow LED
t = start-up delay fixed 200 ms
s
t = adjustable tripping delay
v
c) ON-delayed over- and undervoltage
monitoring, 2 x 1 c/o contact
L1, L2, L3
> U
> U - 5 %
Measured value
< U + 5 %
< U
t s t v
15-18
15-16
25-28
25-26
F1: red LED
F2: red LED
R/T: yellow LED
t = start-up delay fixed 200 ms
s
t = adjustable tripping delay
v
d) OFF-delayed over- and undervoltage
monitoring, 2 x 1 c/o contact
L1, L2, L3
> U
> U - 5 %
Measured value
< U + 5 %
< U
t s
15-18
15-16
25-28
25-26
F1: red LED
F2: red LED
R/T: yellow LED
t = start-up delay fixed 200 ms
s
t = adjustable tripping delay
v
<t v t v
t v <t v <t v
<t v t v
t v <t v <t v
e) ON-delayed
phase unbalance monitoring
L1, L2, L3
Unbalance
L3
Unbalance -Hyst.
Measured value
L1, L2, L3 L1, L2
Unbalance +Hyst.
Unbalance
t s t v
15-18
15-16
25-28
25-26
F1: red LED
F2: red LED
R/T: yellow LED
t = start-up delay fixed 200 ms
s
t = adjustable tripping delay
v
f) OFF-delayed
phase unbalance monitoring
L1, L2, L3
Unbalance
L3
Unbalance -Hyst.
Measured value
L1, L2, L3 L1, L2
Unbalance +Hyst.
Unbalance
t s
15-18
15-16
25-28
25-26
F1: red LED
F2: red LED
R/T: yellow LED
t = start-up delay fixed 200 ms
s
t = adjustable tripping delay
v
g) Phase sequence and phase failure monitoring
L1, L2, L3
Measured value
L1, L2, L3 L1, L3, L2
t s
15-18
15-16
25-28
25-26
F1: red LED
F2: red LED
R/T: yellow LED
t = start-up delay fixed 200 ms
s
<t v t v
t v <t v <t v
L1, L2, L3 L1, L2 L1, L2, L3 L1 L1, L2, L3
L3 L2, L3
9