Led Indicators; Power Supply Unit - Viessmann WAGO 750-8212/000-100 Installation And Service Instructions For Contractors

Installation sequence
Connections and operating elements

LED indicators

LED Status
User LED U1 Green
Red
Other

Power supply unit

A B
L N PE
+ + - -
Fig. 6
INPUT 100 to 240 V, 50 to 60 Hz
A
OUTPUT 24 V
B
1.3 A
14
(cont.)
Meaning
The connection to the heat gen-
erator is active.
The CAN bus interface has the
status "Bus Off": Short circuit or
other serious fault
Fault
Measure
—
Check CAN bus connection:
■
Plug, cable, terminator
Check whether heat generator
■
is switched on.
Check installation and connec-
■
tions of gateway and power
supply unit.
If the fault cannot be rectified,
■
contact Viessmann Werke
Technical Service.
Contact Viessmann Werke Tech-
nical Service.