Maintenance
11
2
ekr 500 web guiding controller
EDV No.: MD.299.01.06
Chapter: 11
with removable control panel
Date:
29.07.08
Page:
84/86
11 Maintenance
11.1 General
Attention!
You are only allowed to undertake maintenance or
cleaning of the controller or the control panel and of
all connected components after the mains voltage has
been switched off.
Before any maintenance or cleaning work ensure the system is
electrically isolated and at zero potential!
To this end always carry out the following measures:
1. Switch off.
2. Prevent switching back on.
3. Check the equipment is isolated.
4. Earth.
5. Cover or shield any adjacent parts that are still live.
The maintenance or the cleaning of the system can only take
place, after carrying out these steps.
The maintenance or cleaning intervals depend on the ambient
conditions at the installation site.
If the customer is processing very dusty materials then the
maintenance/cleaning intervals must be reduced accordingly.
As a matter or course, cable connectors (e.g. between controller
and actuator) should only be disconnected when the controller is
no longer connected to the mains supply. Any infringements will
result in
the warranty claim being invalidated
.
11.2 Controller
The controller is maintenance-free.
Cleaning of the controller housing should be carried out using a
dry, clean and soft cloth.
A commercial liquid cleaner may be used if the housing is very dirty.
Adhere to protection class IP 54!
11.3 Control panel
The control panel is maintenance-free.
Cleaning of the control panel housing should be carried out using a
dry, clean and soft cloth.
A commercial liquid cleaner may be used if the housing is very dirty.
Adhere to protection class IP 50!