ABB CM-MPS.11 - Function Diagrams; ON-delayed Over- and Undervoltage Monitoring Diagram; OFF-delayed Over- and Undervoltage Monitoring Diagram; ON-delayed Phase Unbalance Monitoring Diagram

7
25-26
25-28
L1, L2, L3
15-16
15-18
L1, L2, L3 L1, L2, L3 L1, L2, L3 L1, L2, L3L1, L3, L2 L1, L2 L1
L3 L2, L3t
s
2CDC 252 094 F0207
F1: red LED
F2: red LED
R/T: yellow LED
Measured value
t
s
= start-up delay fixed 200 ms
25-26
25-28
L1, L2, L3
15-16
15-18
t
s
<t
v
<t
v
t
v
L1, L2, L3 L1, L2
L3
2CDC 252 093 F0207
F1: red LED
F2: red LED
R/T: yellow LED
Measured value
Unbalance
Unbalance -Hyst.
Unbalance +Hyst.
Unbalance
t
s
= start-up delay fixed 200 ms
t
v
= adjustable tripping delay
L1, L2, L3
15-16
15-18
L1, L2, L3 L1, L2
L3
t
s
t
v
t
v
<t
v
25-26
25-28
2CDC 252 092 F0207
F1: red LED
F2: red LED
R/T: yellow LED
Measured value
Unbalance
Unbalance -Hyst.
Unbalance +Hyst.
Unbalance
t
s
= start-up delay fixed 200 ms
t
v
= adjustable tripping delay
L1, L2, L3
15-16
15-18
> U
> U - 5 %
< U + 5 %
< U
t
s
t
v
t
v
<t
v
25-26
25-28
2CDC 252 090 F0207
F1: red LED
F2: red LED
R/T: yellow LED
Measured value
t
s
= start-up delay fixed 200 ms
t
v
= adjustable tripping delay
IV Function diagrams
a) ON-delayed
over- and undervoltage monitoring
b) OFF-delayed
over- and undervoltage monitoring
c) ON-delayed
phase unbalance monitoring
d) OFF-delayed
phase unbalance monitoring
e) Phase sequence and phase failure monitoring
25-26
25-28
L1, L2, L3
15-16
15-18
> U
> U - 5 %
< U + 5 %
< U
t
s
<t
v
<t
v
t
v
2CDC 252 091 F0207
F1: red LED
F2: red LED
R/T: yellow LED
Measured value
t
s
= start-up delay fixed 200 ms
t
v
= adjustable tripping delay
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