Operating instructions

Protect PV.500/630-MH - Operating Instructions
Page 34 of 45 8000043212 BAL
7
. Disconnect and remove the connection cables from the
ventilator.
8. Clean the inside of the ventilation duct. Clean the cooling fins
of the IGBT inverter stacks with compressed air.
Installation is the same procedure in reverse.
Switch on the equipment and test whether the ventilator is working.
Removing and installing radial fans M2 and M3/4:
Fans M2 and M3/4, and their corresponding connectors, are
located on the INV cabinet roof.
1. Unscrew the service opening or dismantle the waste air duct.
2. Remove fan connectors X91.2 X91.3 and X91.4.
3. Unscrew the screw connections from the cable clip.
4. Unscrew and remove the screw connections from the mounting
plate.
5. Lift the fan plus the mounting plate from the cabinet.
6. Unscrew the fan from its mounting plate and remove it.
7. Disconnect and remove the connection cables from the fan.
Installation is the same procedure in reverse.
Switch on the equipment and test whether the fan is working.
10.2.5.8 Replacing Output Contactor K7
The life span of a 3-pin contactor is determined by the number of
operating cycles it engages in:
• Electrical service life  440 V approx. 200,000 operating cycles
• Mechanical service life approx. 500,000 operating cycles
The operating cycles are recorded in the memory and indicate
when the contactor should be replaced. The electrical service life
can be extended by replacing the coil.
10.2.5.9 Replacing Capacitors C86 and C87
The capacitors in front of the IGBT inverter stacks have a life span
of approx. 100,000 operating hours and should be replaced when
this is reached.
10.3 Repairs
Only AEG PS skilled personnel may carry out repairs and
modifications on the Protect PV.xxx-MH.
If you want other personnel to carry out this work, this will need to
be authorised by means of written approval from AEG PS.
Only original AEG PS spare parts (or spare parts purchased from
AEG PS) may be used.