Operating instructions

Maintenance Vector Control Chassis Type Frequency Converter
476 869 4070 76 J AB-74 Siemens AG
12-2 Operating Instructions SIMOVERT MASTERDRIVES
12.1 Replacing the fan
The fan is designed for an operating time of L
10
≥
35 000 hours at an
ambient temperature of T
u
= 40 °C. It should be replaced in good time
to maintain the availability of the unit.
The fan assembly consists of:
♦
the fan housing
♦
a fan
The fan assembly is installed between the capacitor battery and the
motor connection.
♦
Withdraw connector X20.
♦
Remove the cable fastening.
♦
Undo the two M6x12 Torx screws.
♦
Pull out the fan assembly towards the front.
♦
Install the new fan assembly in reverse sequence.
Prior to start-up, check that the fan can run freely and check for correct
direction of air flow.
The air must be blown upwards out of the unit.
Fan Fan housing
Torx M6x12
Torx M6x12
Fig. 12-1 Fan assembly
The fan assembly consists of:
♦
the fan housing
♦
a fan.
The fan assembly is installed at the top of the chassis.
♦
Withdraw connector X20.
♦
Undo the two M8 screws of the fan assembly.
♦
Pull out the fan assembly towards the front (if necessary, tilt it
slightly downwards at the front) and lay it down safely.
Construction types
E - G
Replacement
Construction type K