Version 2
A
Over/undervoltage in %
B
Switching delay in s
C
Phase asymmetry in %
D
Green LED
E
Yellow LED
LEDs explained
&
LED "R" illuminates green:
All voltages and the rotating field
(clockwise) are healthy.
&
LED "Ph" flashes yellow:
The relay has responded; the rotat-
ing field is anti-clockwise.
&
All LED's off:
One or several phases has/have
dropped out.
&
LED "U" flashes yellow:
Undervoltage on one/several phase
(s).
&
LED "U" illuminates yellow:
Overvoltage on one/several phase
(s).
&
LED "Asy" illuminates yellow:
Incorrect voltage on one/several
phase(s).
Relay switch contacts for activat-
ing signalling equipment or for
blocking the heat pump:
Phase monitor
(cont.)
129
Components
55
92
901
GB
Service
Summary of Contents for VITOCAL 300
Page 19: ...Connection diagram Open CLOSE System version 1 cont 19 Preparing for installation 5592 901 GB...
Page 22: ...Connection diagram Open CLOSE System version 2 cont 22 Preparing for installation 5592 901 GB...
Page 137: ...Control PCB 137 Connection and wiring diagrams 5592 901 GB Service...
Page 140: ...Parts lists cont 140 Parts lists 5592 901 GB...
Page 141: ...Parts lists cont 141 Parts lists 5592 901 GB Service...
Page 159: ...159 5592 901 GB...