Mounting The Control Unit On The Rear Wall Of The Control Cabinet; Mounting Control Unit Using Spacers; Mounting The Control Unit Without Spacers - Siemens NCU 7 0.2 Series Manual

Mounting

6.3 Mounting the control unit on the rear wall of the control cabinet

6.3 Mounting the control unit on the rear wall of the control cabinet
6.3.1

Mounting control unit using spacers

Introduction
Spacers can be used to mount the control unit on a bare-metal highly-conductive rear wall of
a control cabinet. This mounting method should be used if a number of control units are
required or if you wish to isolate the Line Module spatially.
Procedure
Mount the control unit with two screws of the M6 type (6 Nm tightening torque) on the
spacers on the rear of the control cabinet.
6.3.2

Mounting the Control Unit without spacers

Introduction
If you need to disconnect control units NCU 710.2 and NCU 720.2 from the Line Module, or
simply wish to do so, you can mount them directly on the rear wall of the control cabinet
without spacers.
Procedure
The control unit has on the rear side on the top a metallic lug that is fitted and tightened with
three torx screws of the M3 type (0.8 Nm) in its delivery state.
1. Remove the spacers with a T10 screwdriver .
2. Loosen the screws and push the clip up until the upper hole extends beyond the housing.
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Manual, 02/2011, 6FC5397-0AP20-0BA0
NCU 7x0.2