Operating instructions

Protect PV.500/630-MH - Operating Instructions
Page 28 of 45 8000043212 BAL
The log for dry-cleaning low-voltage installations using a vacuum
cleaner must be completed before and after cleaning work. Circuit
and installation markings should be noted before cleaning, so that
if a marking is damaged or falls off, this can be rectified.
Cleaning the heat sink
1 2
2 3 4 4 3
Figure 16 - Protect PV.xxx heat sink
1 Service flap
2 INV rear wall with
air outlets
3 Heat sink IGBT INV stacks (A1, A2)
4 Ventilation duct M1
INV control cabinet
WARNING
Hot surfaces/heat sink
Risk of burning.
 Do not touch hot components.
Unscrew screw connections and lift out the service flap by the
handles.
1. Unscrew and remove the two accessible parts of the INV rear
wall with air outlets.
2. Clean the heat sink carefully using compressed air from bottom
to top, for example. (Wear protective goggles.)
3. Replace the rear wall and service flap.
10.2.3 Functional Test
i
Always perform a functional test after completing any
servicing work and before starting operation.