66
Version 1
A
H
B
C
G
F
E
D
D
<>U
A1
Asy
Ph
Rel
A2
L1
L2
L3
14
11
12
<>U
Asy
t
2
4
12
%
15
10
5
%
20
10
6
0.1
A
Over/undervoltage in %
B
Phase asymmetry in %
C
Switching delay in s
D
Contact used in safety chain (N/O)
E
ON/OFF indicator ("Rel")
F
Fault display phase failure/phase
sequence ("Ph")
G
Fault display asymmetry ("Asy")
H
Fault display over/undervoltage
("<>U")
LEDs explained
■ LED "Rel" illuminates green:
All voltages and the rotating field
(clockwise) are healthy.
■ LED "Ph" illuminates red:
The relay has responded; the rotating
field is anticlockwise.
■ All LEDs off:
One or more phases have dropped
out.
■ LED "<>U" illuminates red:
Incorrect voltage on one or more pha-
ses.
■ LED "Asy" illuminates red:
Asymmetry on one or more phases.
Installation sequence
Power supply
(cont.)
5546 273 GB
Содержание BW 351.A07
Страница 28: ...28 Removing the top panel 1 Installation sequence Siting the heat pump cont 5546 273 GB ...
Страница 88: ...88 Opening the casing door Troubleshooting Repairs cont 5546 273 GB ...
Страница 90: ...90 D C Q R S V K X P F J U T X Q S T R D Y W Type BWC 351 A07 Troubleshooting Repairs cont 5546 273 GB ...