Connect Metal Shield In The Terminal Box - Siemens SIMOTICS FD 1MH1 Operating Instructions & Installation Instructions

Low-voltage motor
Table of Contents

Advertisement

Electrical connection
6.4 Preparation
There is a hexagon bolt with a flat washer and a spring washer on the stator frame at the
designated connecting point for the grounding conductor. The grounding conductor can be
connected as follows:
● With stranded cables with cable lugs
● With flat cables with cable end designed accordingly
As an alternative, you can connect the grounding conductor without cable lugs using a terminal
plate at the marked connection point.
Connecting the grounding conductor
● Ensure that the connecting surface is bare and is protected against corrosion using a
● Arrange the flat washer and spring washer under the bolt head.
● Check that the maximum permissible clamping thickness of 10 mm for the cable lug or strap
● Fasten the clamping screw according to the following table. Screw-in depth and tightening
● Use the connecting terminals designated for the grounding conductor in the terminal box.
See also
Converter operation (Page 106)
6.4.4

Connect metal shield in the terminal box

If you are using metal-armored cables that are inserted into the terminal or auxiliary terminal
boxes with non-intrinsically safe circuits, then ground the metal shield in the terminal box.
Additional grounding points are permissible.
● In terminal boxes with internal grounding part, connect the metal shield to the internal
● In terminal boxes without internal grounding part, connect the metal shield to one of the
90
suitable substance, e.g. acid-free vaseline.
is not exceeded.
torque are different depending on whether cable lugs or ground terminals are used.
When using cable lugs
When using grounding
terminals
grounding point.
green-yellow grounding terminals.
Screw
Screw-in depth
M6
M8
M12 x 25
M16 x 35
M6
M8
M10
M12
M16
Tightening torque
> 6 mm
> 8 mm
> 16 mm
> 20 mm
> 9 mm
> 12 mm
> 15 mm
> 18 mm
> 20 mm
SIMOTICS FD 1MH1
Operating Instructions 08/2017
8 Nm
20 Nm
38 Nm
92 Nm
8 Nm
20 Nm
40 Nm
70 Nm
170 Nm

Advertisement

Table of Contents
loading

This manual is also suitable for:

Simotics fd 1mq1Simotics fd 1ll1

Table of Contents