Maintenance 09.02
8-2 Siemens AG 6SE7087-6AK85-1AA0
Rectifier/Regenerating Unit Operating Instructions
8.2 Replacing components
8.2.1 Replacing the fan
WARNING
The fan must only be replaced by qualified personnel.
Because of the DC link and snubber capacitors in the connected inverters, a
hazardous voltage is present for another 5 min after isolation.
Non-observance of warning notices can result in death, severe personal injury
or considerable property damage.
Size C
The fan is located on the underside of the unit
♦ Undo both M4 x 49 Torx screws
♦ Remove the protective grille
♦ Pull the fan down and extract the connector X20
♦ Install a new fan in reverse order
♦ Before commissioning the unit, check that the fan
does not rub and also check the air flow direction
(arrow pointing upward). The air must be
discharged from the unit in the upward direction.
X20
M4 x 49
Torx T20
M4 x 49 / Torx T20
Protective grille
Fan E1
Figure 8.1 Protective grille and fan (24 V) for size C
Size E
The fan is located on the right underside of the unit.
♦ Undo the M4 x 8/T20 Torx screw securing the fan
♦ Extract the plug-in terminal X29
♦ Undo the M4 x 8/T20 Torx screw for earth
connection
♦ Pull the fan out of the unit towards the front left
♦ Install a new fan in reverse order
♦ Before commissioning the unit, check that the fan
does not rub and also check the air flow direction.
The air must be discharged from the unit in the
upward direction.
X29
M4 x 8
Torx T20
Fan E1
Figure 8.2 Fan (AC 230V) for size E
AoteWell Automation Sales Team
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