34
WVM_BASIS_EN_03—07/2016
Connection of electrical components
Beware of electrical voltage!
Work on the electrical system must be entrusted to instructed, authorised
electricians only. The electropneumatic switch cabinet in particular must
be opened and serviced by an instructed trained electrician only.
Connection to power supply
The dryer components have been connected in the switch cabinet at the factory.
You only need connect it to the electric supply.
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Make sure the cross section of the electric cable matches the dryer's power
consumption and the voltage available at the customer's.
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Insert power cable through the left
recess at the base of the switch
cabinet (see figure).
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Connect wires according to the circuit
diagram to terminals L1–L3 at the
terminal strip (the circuit diagram is
attached inside the switch cabinet).
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Connect the dryer's earth cable to the
PE terminal.
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Protect the dryer against short circuits
by installing fuses to all phases.
Cable recess in switch cabinet base and
terminal connections for power supply
Connection of dryer to the fault signalling system
There is an ex-works option to connect the dryer to a fault signalling system. With
such a system, faults occurring anywhere in the dryer unit can be displayed at
one location, e.g. at a control station.
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Connect the cables of the fault signalling system to the terminal strip as
show in the circuit diagram .
External interfaces
The dryer controller features interfaces for data transmission.
Please heed the controller manual for more information on these interfaces.
Check bolt connections
Before the initial start-up:
Check all unions and bolt connections as well as the terminals in the control
cabinet for secure seating; re-tighten if necessary.
