4.4
Connecting the pump(s)
Before connecting the pump, check whether the motor protection switch of the control unit is suitable for the power con-
sumption of the pump(s) (see type plate).
If necessary, set the motor protection switch to the nominal current of the pump (see type plate of the pump).
Pull the connection cable through the cable passage(s) and tighten in the same way as the mains cable gland.
Make connections as shown in the connection diagram.
The control unit is equipped with a terminal block. The terminal pairs for the thermal contact (TF 1 and TF 2) share a joint,
middle terminal.
Printed board connections for the pump(s)
1-3: phases
4-5: Winding temperature switch
5-6: Temperature monitoring*
7 PE: Protective conductor
*TF1: temperature monitoring connection, self-resetting
*TF2: temperature monitoring connection, NOT self-resetting
For pumps with only one temperature monitoring, bridge the terminal of the monitoring type not present. Take the ATEX
regulations into account!
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