User Documentation
10.3 Removing/replacing cables
WARNING
Explosion risk!
▶ Prior to starting work, make sure that
there is not a potentially explosive atmos-
phere!
WARNING
Operation of the machine/system can
be disrupted!
▶ If the machine/system is put into a dan-
gerous state as a result of the removal of
cables a replacement can only be made
once the machine/system is disconnected
from thepower!
WARNING
Dangerous contact voltage!
▶ Prior to removing modules, the u-control
station must be completely de-energised
(supply of the field bus coupler and all
external feed-in).
▶ Make sure that the place of installation
(switch cabinet etc.) has been discon-
nected from the power supply.
ATTENTION
The product can be destroyed by elec-
trostatic discharge!
The components can be destroyed by electro-
static discharge.
▶ Please make sure that personnel and work
equipment are adequately earthed!
ATTENTION
The product can be destroyed by over-
current!
Potentials may only be disconnected either
simultaneously or in the correct order.
▶ At the controller as well as at power-feed
modules always disconnect the 24V sup-
ply (red pusher) first, before you disconect
the GND potential (blue pusher)!
▶ Using a 3-mm screwdriver, push in the pusher adjacent to
the cable to be removed and pull the wire out.
Pushing the pusher in with a screwdriver
▶ Release the pusher.
▶ Insert the new wire into the opening. To do so, you do
not need to push in the pusher.
10 Replacingcomponents | Removing/replacing cables
67Manual u-control2604080000/03/08.2020