4
Opening the control unit
•
Check that the voltage supply to the DRHX has been disconnected
before opening the cover.
•
Wait approx. 3 minutes after disconnecting mains voltage before
removing the cover, warning see page 1.
•
The controller can be opened using a screwdriver or similar (see
fig.13.8.1)
Spring terminals
•
The connection terminals are spring-loaded and the stripped wire can
be easily inserted into the terminal by carefully pushing the wire into the
terminal without using tools.
Alternatively, the terminal spring can be loosened by pressing it
lightly with a screwdriver or similar implement. See fig. 13.9.
•
Stripped wire ends or end sleeves must be between 8 and 10 mm.
•
Wires can be removed by carefully loosening the terminal spring by pressing
lightly with a screwdriver or similar implement. See fig. 13.9.
Cable entries
– cable glands
•
The factory-fitted PG9 cable glands should be used when inserting power and
stepper motor cables into DRHX (see fig. 13.10.1).
•
Remember to re-tighten the cable glands to ensure ingress protection.
Terminal and connector overview
