17 Description of function
2022/07 99E13331xx-mub-en - V08 43
Alarm relay Activate the function On, Off Off
Relay selection Selection of the relay Relay 1, Relay 2 -
Inverted Relay function inverted On, Off Off
Pt1000 error Short-
circuit / interruption at a
temperature sensor
On, Off Off
VFS/US error Short-circuit / interruption /
exceeding or falling under the
measuring range at the flow
rate sensor
On, Off Off
μC error μC error On, Off Off
Time error Time not defined or lost On, Off Off
Communication error Communication error in the
cascade network
On, Off Off
Disinfection error Disinfection not successfully
completed
On, Off Off
17.7 Parallel relay
The function
parallel relay
makes it possible to switch an additional relay in case of an error.
It is possible to select what kind of incident causes the relay to be switched.
Example: The parallel relay R2 is chosen for the primary pump. Whenever the controller sends
a signal to the primary pump, the relay R2 is switched.
This can be useful to switch hydraulic paths on or off using a zone valve, for example.
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