Safety Information For Wiring; Opening The - Siemens SINUMERIK 840D sl Manual

9.2

Safety information for wiring

Note the following:
Safety information
The system power supply must be disconnected when you wire the control unit.
NOTICE
If your axis grouping contains a Smart Line Module without DRIVE-CliQ (5 kW or 10 kW),
you must assign the Smart Line Module enable signal to digital output X122.1 on the
control unit.
9.3 Opening the front cover
Introduction
The interfaces are concealed behind a front cover. You must remove this cover before you
can wire the interfaces.
A hinge connects the front cover to the front of the housing. Once opened, the cover can be
completely removed. When the front cover is closed (folded up), it automatically locks into
place by means of a hook on the connector panel.
Procedure
1. Disengage the release hook on the inside of the front cover (the front cover is open and
2. Remove the front cover with a forward motion.
NCU
Manual, 07/2007, 6FC5397-0AP10-2BA0
DANGER
in the up position).
Connections
9.2 Safety information for wiring
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