8
Maintenance
8.1
Safety during maintenance
DANGER!
Danger due to electric current!
When working with power cables, there is an imme-
diate danger of severe, or even fatal, injury due to
electric current.
– Ensure that the cable is not live when performing
installation work.
– Only have work on electric cables performed by
an electrician.
– Never connect voltage to open cables.
– Before connecting the cable to voltage, ensure
that no persons are near electric cables.
WARNING!
Danger of injury due to hot surfaces!
Surfaces on components may become very hot
during operation. Contact between the skin and hot
surfaces can cause severe burns to the skin.
– When working near hot surfaces, always wear
heatproof protective clothing and protective
gloves.
– Before opening the controller box, ensure that all
surfaces have cooled down to ambient tempera-
ture.
8.2
Overview of maintenance work
The following tables list the maintenance work that is necessary to
ensure optimal and fault-free operation of the controller.
If increased wear is identified during regular inspections, shorten the
required maintenance intervals to correspond to the actual signs of
wear. Should you have any questions regarding the maintenance
work and intervals, contact Customer Service (see page 3 for the con-
tact details).
Electric current
Hot surfaces
H3000 E
Maintenance
01/2023
Item no. 215251
EA no. EA-1291
Operating instructions
30
