Commissioning / Functional test
Then, proceed with the electrical connection (see the "Electrical Connection" sec-
tion).
7.2
Electrical connection
DANGER
Risk of fatal electrical shock!
Electrical connection must be carried out by an electrician authorised by the local
energy supply company and in accordance with the applicable local regulations
[e.g. VDE regulations].
▪ Carry out installation as described in the previous section.
▪ Carry out electrical installation of the pump as specified in the relevant installation
and operating instructions.
▪ Check the technical data of the electric circuits being connected to ensure they are
compatible with the electrical specifications of the CIF module.
▪ Connect the wires in accordance with corresponding drawing (Fig. 1 to Fig. 4).
▪ If there is no outgoing line, then set BUS terminal resistors for RS485/CAN (both
switches to "ON").
▪ Check the terminal box gasket for any visible damage.
▪ Close the terminal box lid with the screws provided so that the gasket is tight all
around.
For RS485 the connection terminals are marked A(-) and B(+). The marking corres-
ponds to the standard. Nonetheless, some manufacturers mark A and B the other way
around. This can lead to communication problems.
RS485 does not allow loops, star-connected wiring or spur lines. All devices must be
wired in series.
8
Commissioning / Functional test
These instructions describe the basic installation.
The complete instructions can be found at www.wilo.com/automation.
9
Maintenance
The modules described in these instructions are maintenance-free.
10
Faults, causes, remedies
Have repairs done by qualified personnel only!
Installation and operating instructions Wilo-CIF-Module
en
10