Specifications - Siemens SINAMICS S120 Configuration Manual

The following applies to the
selector gearbox:
Both gearbox ratios are electrically selected and the setting is monitored using limit switches.
The gearbox output lies coaxially to the motor shaft.
Circumferential backlash (measured on gearbox output): 30'
For milling and machining with interrupted cut, the following special versions are available on
request:
● Lower play: Max. 20'
● Lower play for increased requirements: Max. 15'
Belt pulley
● The belt pulley should be in the form of a cup wheel.
● The gearbox output shaft has a flange with outer centering and tapped holes to retain the
● The complete drive should be designed to be as stiff as possible using large belt cross-
5.4.2

Specifications

Table 5- 17 Technical data for gearbox
Type SH Order No.
ZF
identifier
2K120 100 2LG4312-...
2K250 132 2LG4315-...
2K300 160 2LG4320-...
1)
2)
1PH4 Induction Motors
Configuration Manual, (APH4S), 08/2008, 6SN1197-0AD64-0BP1
belt pulley.
sections. This has a positive impact on the smooth running properties of the drive.
Maximum
speed
n
max
[rpm] [Nm]
8000 120
1)
9000
2)
6300 250
8000
2)
6300 300
8000
2)
Higher maximum speed from 8000 ... 9000 rpm for more than 20% load duration is only
possible with injection lubrication.
Permissible with gearbox oil cooling for gearbox stage i = 1.
Switch position I:
Switch position II:
Rated torque
(S1 duty)
Drive Output
i = 1 i = 4 [Nm]
[Nm] [Nm]
120 480 140
250 1000 400
300 1200 400
i = 4
1
i = 1
2
Maximum torque
(S6 duty,
10 min duty cycle,
max. 60% load duration)
Drive Output
i = 1 i = 4
[Nm] [Nm]
140 560
400 1600
400 1600
Motor components
5.4 Gear
Weight Output
housing
[kg] [mm]
30 100
62 116
70 140
105