Maintenance; Replacing The Fan - Siemens simovert masterdrives Betriebsanleitung

05.2005
8

Maintenance

8.1

Replacing the fan

WARNING
Removal
Installation
NOTICE
Siemens AG 6SE7087-6NP85-0AA0
SIMOVERT MASTERDRIVES
At the bottom of the rectifier unit a fan is mounted for cooling the power
section.
On the 15kW/ 6SE7024-1EP85-0AA0 rectifier unit and the 50kW/
100kW rectifier units the fan runs continuously once the 24 V supply
voltage has been connected.
On the 15kW/ 6SE7024-1EP85-0AA1 rectifier unit it is switched on and
off depending on the unit's temperature.
The fan is designed for an operating duration of L
an ambient temperature of Tu = 45 °C.
A replacement fan must be fitted in good time to ensure the availability
of the unit.
15 kW /
6SE7024-1EP85-0AA0
rectifier unit
Disconnect the rectifier unit from the supply and remove it
Open housing
Withdraw X20
Carefully bend up the
fastening lugs
Take out the fan and ventilation grille
Remove the ventilation grille and fix it on the new fan
Install the new fan in the reverse order.
The air must flow in the direction of the inside of the unit (observe
directional arrow on fan housing)!
Operating Instructions
15kW /
6SE7024-1EP85-0AA1
rectifier unit
Press out four expansion
rivets
Maintenance
≥ 35 000 hours at
10
50 kW / 100 kW
rectifier units
Withdraw two cables
with flat connector
from the fan
(red = +)
Undo four fastening
screws
8-1