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Power supply
(cont.)
Grounding of top-hat rail to ensure that the shield-
H
ing of the CAN bus cable is grounded/protected
against interference.
Cores supplied
K
Power supply independent of the mains isolator
Effects during heating system shutdown:
The control unit is switched off.
■
■
The gateway remains in operation.
■
No heat generator data is transmitted to the BACnet
control system.
Fault message "Connection to heat generator" is
transmitted.
Note
It is essential to ground top-hat rail
the CAN bus cable shield is grounded/protected
against interference.
C
BN
L
GNYE
PE
B
BU
N
Fig. 15
Gateway
A
Power supply 100 to 230 V~, 50 to 60 Hz
B
Fuse protection across all poles (max. 16 A)
C
Mains isolator, 2-pole, on site (if installed)
D
Junction box (on site)
E
For the control unit power supply (plug
F
the installation and service instructions for the heat
generator.
to ensure that
H
H
G
D
E
), see
fÖ
K
+
-
A
F
Power supply unit
G
Grounding of top-hat rail to ensure that the shield-
H
ing of the CAN bus cable is grounded/protected
against interference.
Cores supplied
K
Installation sequence
23
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