Surge protection module
Operation manual b maXX BM4100 (NWR)
Document no.: 5.04052.09 Baumüller Nürnberg GmbH
120
of 142
11.4
11.4.1 Maintenance/inspection of surge protection modules
Procedure
BFO-3-550-000:
1 Switch off machine / switch to neutral
2 Disconnect terminals L1, L2, L3
3 Dismantle the surge protecktion module
4 Open the housing of surge protection modul
WARNING!
Risk of injury due to insufficient qualifications!
The maintenance/inspection of surge protection modules may only be carried out by
qualified personnel.
DANGER!
Risk of fatal injury from electrical current!
Assure, that when working in the control cabinet, that all devices in the control cabinet
are off-circuit and are safe against re-starting.
Await the discharge of the DC-link, before you install the safety relay. The capacitors
which are used in the device are 10 min. after interruption of the supply voltage au
-
tomatically discharge so far, that the connections can be demounted without danger.
If you have additional capacitors connected to the DC-link, the DC-link discharging
also can last much longer. In this case you must determine the necessary waiting
time yourself and you must verify the isolation from supply at all terminals of the de
-
vice (also see ZDanger from residual energy– on page 16).
A total of 4 plastic clips on the lower and upper side of the module must be pressed
by e.g. a screwdriver to remove the cover.
After that the PCB can be dismantled.
To Next Page
Loading...
Need help?
General
