5 Installation at Site
30 of 62
Calio Pro / Calio Pro Z
1157.820/01-EN
5.6.3 Connecting the general fault message
Table 10:
Symbols key
Function
Symbol
Terminal
pair
Maximum
terminal
cross-section
Terminal
code
Contact
rating
General fault message
1,5 mm
2
-
Min: 12 V DC at 10 mA
Max: 250 V at 1 A
The pump set signals a general fault message by means of the integrated, volt-free
relay contact.
▪
General fault message = pump rotor not rotating, no flow (alarm active).
This information can be accessed at the relay terminal pair with terminals NC / NO / C.
NC
NO
C
1
NC
NO
C
2
Fig. 15:
Wiring diagram for the general fault message
1
No general fault message or no power supply / alarm not active
2
General fault message (pump rotor not rotating) / alarm active
NC
NC contact, normally closed and electrically conductive connection to C
C
Reference potential for either contact that is closed
NO
NO contact, normally open and not electrically conductive connection to C
1. Switch off the power supply and make sure it cannot be switched on again
unintentionally.
2. Undo the screws (1) at the cover of the terminal wiring compartment at the
electronic system housing with a suitable tool.
1
Fig. 16:
Removing the cover of the terminal wiring compartment
3. Prepare the cable gland that belongs to the terminal pair of the general fault
message relay.
