Siemens SINAMICS G115D Operating Instructions Manual page 431

Procedure
1. Remove the fan cover.
When combined with manual release:
Unscrew the manual brake release lever.
2. Release the connecting cable.
3. Remove the fan locking ring and pull out the fan.
4. Loosen the brake screws evenly and remove the screws completely. Adjust the solenoid,
see .
5. Completely pull the rotor off the hub.
6. Check the hub teeth.
7. Check the friction surface at the bearing shield. If there is severe scoring on the friction plate
or flange, replace the friction plate or flange. Rework the friction surfaces if there is severe
scoring on the bearing shield.
8. Measure the thickness of the new rotor and the head height of the sleeve screws with a
caliper gauge.
9. Calculate the gap between the solenoid and the armature disk as follows:
gap = rotor thickness + s
10.Unscrew the sleeve screws evenly until the calculated gap between the solenoid and the
armature disk is reached.
11.Mount the new rotor and solenoid. Set the air gap of the brake, see Adjusting the air gap
(Page 427).
12.Connect the connection cable.
13.Mount the fan cover.
You have now replaced the friction lining of the brake.
Table 11- 25 Brake data
Brake type Nominal air
L4
L8
L16
L32
L60
L80
SINAMICS G115D distributed drive
Operating Instructions, 12/2020, FW V4.7 SP13, A5E48681219B-002
- head height.
LN
Minimum rotor
gap thickness
s
LN
(+0.1 / -0.05)
mm mm
0.2 4.5
0.2 5.5
0.2 7.5
0.3 8
0.3 7.5
0.3 8
Additional information on the SIMOGEAR geared motor
Maximum permissible
Operating speed if max.
permissible operating
energy utilized
Normal friction lining
rpm
4 000
4 000
3 600
3 600
3 600
3 600
11.2 Specific data motor
No-load speed
with emergency stop
function
Normal friction lining
rpm
6000
5 000
4 000
3 600
3 600
3 600
429