9
Installation
3
3
3.2 Electrical connection
Before working on the unit, switch off the power supply and secu-
re it against being switched on again! Check for the absence of
power! Electrical connections may only be made by a specialist
and in compliance with the applicable regulations. Do not use the
controller if the housing shows visible damage.
Caution
Danger!
Low-voltage cables such as temperature sensor cables must be routed
separately from mains voltage cables. Feed temperature sensor cables
only into the left-hand side of the unit, and mains voltage cables only
into the right-hand side.
Caution
Caution
Fig.
3.2.1
Caution
The customer must provide an all-pole disconnecting device, e.g. a
heating emergency switch.
The cables being connected to the unit must not be stripped by more
than 55mm, and the cable jacket must reach into the housing just to
the other side of the strain relief.
Relay R1 is only suitable for standard pumps (20-120VA) which are
speed-controlled viathe controller. The internal wiring of the controller is
such that residual currents
fl
ow over relay R1 even in the rest condition.
Therefore under no circumstances may valves, contactors or other
consumers with low power consumption be operated on this output.
1.Select necessary program/hydrau-
lics (Fig. 3.2.2-3.2.16)
2.Open controller as described under
3.1.
3.Strip cables by 55mm max., insert,
fi
t
the strain relief devices, strip the last
8-9mm of the wires. (Fig. 3.2.1)
4.Open the terminals using a suitable
screwdriver (Fig. 3.2.1) and make
electrical connections on the cont-
roller (Pages 10-17)
5.Re
fi
t upper part of housing and fas-
ten with screw.
6.Switch on mains voltage and place
controller in operation.
8...9
~30°
max. 55
