Type FF-
NOTICE
To prevent
malfunction
, the wires to the reset switch
have to be shielded!
4.2.3 Controller type FF-..-U
Note the drawing
41/065-07-4
.
After opening the housing you will see the switch for the voltage adjustment next to the fuses, which must first be set to your
voltage.
The power supply is connected directly next to the switch (refer to board labelling).
The moisture detector for protective elements FF-3-U-2 and FF-1-U attach to the 5-pin terminal X3 with the white and brown con-
ductors according to the connection diagram. On protective element type FF-3-U the moisture detector attaches to the 3-pin ter-
minal X3. Connect the shielding with care.
The signal relay for Type FF-3-U and FF-1-U connect to the 6-pin terminal above the switch, on Type FF-3-U-2 they connect to a 12-
pin terminal. Please also refer to the connection plans FF-U in the appendix.
Please be sure to sufficiently tighten the screw connections.
NOTICE! With these types both output relays will trigger in the event of a cable break, so also that of the moisture alarm.
8
Bühler Technologies GmbH
BE410002 ◦ 09/2017
