18
Action against high frequency interference
High-frequency interference can be caused by out-of-phase switching operations. Should sporadic
failures or malfunctions occur take the following remedial actions in order to suppress interference:
n
Provide inductive loads with RC combinations according to manufacturer's specification to ensure
interference suppression.
n
Make sure that connecting cables leading to the equipment are segregated and run separately from
power cables.
n
Increase the distance to sources of interference.
n
Check the screen connection of the temperature sensors.
n
HF interference suppression by means of hinged-shell ferrite rings.
Further Notes
Decommissioning / replacing the equipment
Disposal
For the disposal of the equipment observe the pertinent legal regulations concerning waste disposal.
The upper terminal strip of the equipment is live during operation.
This presents the danger of electric shock!
Always
cut off power supply
to the equipment before mounting, removing or connecting
the terminal strips!
Danger
n
Switch off supply voltage and
cut off power supply
to the equipment.
n
Remove the lower and upper terminal strips.
Fig. 6
n
Insert a screwdriver to the right and left of the arrow markings between the terminal strip and the
front frame.
n
Unlock terminal strip on the left and right side. For this purpose move screwdriver in direction of
the arrow.
n
Remove the terminal strips.
n
Release the white fixing slide at the bottom of the equipment and take the equipment off the sup-
porting rail.
Fig. 6
5
6
7
8
1
2
3
4
1
ON
2 3 4
