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The controller itself and the associated control circuits and load circuits must be pro-
tected separately and in accordance with the local regulations.
The separate protection of the control- and load circuit must be carried out according
to local conditions!
In order to prevent destruction of the relay or semiconductor relay outputs in the event
of a short-circuit, the load circuit should be fused to the maximum permissible output
current.
As well as incorrect installation, wrong parameter settings can also adversely affect
the correct functioning of the controller. For this reason, safety devices that are inde-
pendent of the controller should always be used, e.g. high and low pressure valves
or temperature limiters. Account should be taken of the local safety regulations in
this connection.
The load circuit (relay outputs K1 to K1 ) must be fused in accordance with the con-
3
nected components.
The connection of external voltages to the digital inputs can lead to the destruction of
the control.
Caution: All cables to the digital inputs must be shielded and kept as short as possi-
ble. EMC.
Important note concerning the external fuse
The transformer, which is installed in the
, has a two-chamber safety
Gala-Kool Pro
winding, which is only short-circuit-proof due to the built-in thermal protection. If the
temperature exceeds 145 ° C, there is a risk of damage!
Protect control unit with an external fuse of 160mA!
2. Safety
2.1 Electrical safety
Summary of Contents for CB2-1L120000
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