7
7. Electrical connection
Warnings:
• Before installing and plugging the controller into the mains, check that the technical characteristics explained in
these instructions also correspond to those of the electrical mains and voltage.
• Always use good quality and appropriate electrical cables to connect the controller to the mains and voltage.
• The electrical equipment must be checked regularly: Damaged wires and cables must be replaced immediately.
• Install the controller in ventilated places and away from heat sources, especially if the current load is near the maxi-
mum power.
• After removing the cover to fix it to the bracket, connect the cables to the terminal strip on the circuit board accor-
ding to the connection diagram.
• Then carefully close the cover again.
Warning
Danger from electrical voltage!
•
The safety rules must be observed, see Safety rules for working in and on electrical installations
•
Prevent water from entering the terminal box.
•
The electrical connection may only be carried out by suitably qualified persons, for details see table Qualification
Regulations:
•
Accident prevention regulations VGB, BGV A3, TRBS
•
DIN VDE 0100, DIN VDE 0105
•
EN 60730 (Part 1)
•
Regulations (TAB's) of the local VNB
•
As well as generally recognised rules of technology.
8. Connection diagram and function
8.1. Speed controller WPO 55 5-stage
Select output voltage via front knob:
Position 0 = 0 V
Position 1-5 = individual speeds
Jumper "LED" (J2)
With the jumper "LED" (J2) you can select whether the illumination of the LED is to be controlled via the
front knob or viah an external contact.
•Jumper J2 in position "INT": front knob in position "0", LED = OFF; front knob in position
"1-5", LED = ON.
•Jumper J2 on position "EXT": If the external contact with the terminals "LED" and "GND"
(terminal CN2) is closed, LED= ON. If the external contact is connected to the terminals
"LED" and "GND" (connector CN ") and is open, LED= OFF.
The LED can be controlled externally by a mechanical contact or also by an open collector
.
