Maintenance 12.96
5-2 Siemens AG 6SE7087-6BM70
SIMOVERT MASTER DRIVES Operating Instructions
5.2 Replacing components
WARNING
The fan may only replaced by qualified personnel.
The drive converters are still at hazardous voltage levels up to 5 min. after the
unit has been powered-down as a result of the DC link capacitors.
If these warnings are not observed, death, severe bodily injury or considerable
material damage could occur.
5.2.1 Replacing the fan
The fan assembly consists of:
• the fan housing
• a fan type of construction J
• one or two fans, type of construction K
• the starting capacitors
The fans are mounted in the fan assembly in the upper section
of the chassis unit.
• Remove connector X20
• Release both mounting bolts (M8) of the fan assembly
• For type of construction K with
one fan, the air deflection plate below the fan must be disassembled
(2
×
M8)
• Withdraw the fan assembly towards the front, and if required, tilt it gently downwards and place carefully on
a flat surface
CAUTION
The fan assembly can weigh up to 38 kg depending on the drive converter rating.
• Remove the cable ties and fan connections
• Remove the fan mounting panel from the fan assembly and remove the fan from the mounting panel
• Install the new fan assembly in the inverse sequence
• Before commissioning the drive check that the fan can run freely and check the airflow direction. The air
must be blown upwards out of the unit.
5.2.2 Replacing the fuses
The fuses are installed in a fuse holder. The fuse holder is
mounted on a DIN mounting rail at the bottom left in the chassis
unit. The fuse holder must be opened to replace fuses.
Fuse link
Fuse holder
closed
Fuse holder
open
Fig. 5.1 Fuse holder
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