Viessmann Vitocal 300-G BW, Инструкция по установке и обслуживанию

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95
The following different mains supplies (if
adjustable) are permissible in the deliv-
ered condition:
Over/undervoltage 15 %
Phase asymmetry 15 %
Switching delay 4 s
The phase monitor switches off (switch-
ing contact opens) if these tolerances
are exceeded.
The phase monitor automatically re-ena-
bles the power supply if the values fall
back to within the specified tolerance
range.
Remove the cause if the relay has
responded. The relay does not need to
be reset.
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 the safety chain (N/
O)
E Operating display ("Rel")
F Fault display phase failure/phase
sequence ("Ph")
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 anti-clockwise.
■ All LED's off:
One or several phases have dropped
out.
■ LED "<>U" illuminates red:
Incorrect voltage on one/several
phase(s).
■ LED "Asy" illuminates red:
Incorrect voltage on one/several
phase(s).
Installation sequence
Power supply
(cont.)
5368 522 UAE
Installation