• Battery
Position the 4 LR20 1.5 V
batteries (not supplied)
making sure they are the right
way round.
1. Two types of power supply can be used.
• Transformer
Connect a 12/24 V AC or
12/30 V DC power pack to
terminal blocks 1 and 2 of
the controller (transformer
A7901 available in the
catalogue). There are no
polarities to be respected
on these terminals.
Optional
Position the 4 LR20 1.5 V
batteries (not supplied) making
sure they are the right way
round. The batteries are used
as back-up in the event of a
mains power failure.
IMPORTANT: push the batteries into their
slot making sure that the + pole of each
one is in contact with the metal part.
IMPORTANT: the transformer used must have
the 12 V/10 VA min. double insulation symbol
(230 V power supply without an earth connection).
Trans -
former
12 V output230 V input
Cable length
0 to 10 m ➞ 0.32 mm
2
and cross-section
10 to 25 m ➞ 0.75 mm
2
198
GB
5.4 Powering the controller