Siemens SIMODRIVE POSMO A User Manual

2
2.5 Gearbox selection
2-61
E Siemens AG 2013 All Rights Reserved
SIMODRIVE POSMO A User Manual (POS1) – 08/2013 Edition
2.5 Gearbox selection
2.5.1 Gearboxes for SIMODRIVE POSMO A – 75 W
For SIMODRIVE POSMO A –75 W, the following gearboxes can be
selected and used according to Table 2-4:
Table 2-4 System data, modular gearbox with planetary/worm gearboxes
Gearbox
type
Stage
num-
Step–
down
Effi-
ciency
Torque Rated
speed
type
num-
ber
down
ratio
ciency
Permissible
1)
Available
speed
ber
ratio
S1 briefly S1 S3
25 %
1 min
n
(S1)
i
Gearbox Gearbox
[Nm] [Nm] [Nm] [Nm] [rpm]
Without
gearboxes
– – – – – 0.18 0.36 3300
1
4.5 0.85 1.2 2.4 0.7 1.4 733
1
8 0.85 1.2 2.4 1.2 2.4 413
Planetary
20.25 0.72 8 16 2.6 5.2 163
Planetary
gearbox
2
36 0.72 8 16 4.7 9.3 92
gearbox
2
50 0.72 8 16 6.5 13.0 66
3
126.5625 0.61 24 48 13.9 27.8 26
3
162 0.61 24 48 17.8 35.6 20
Worm
5 0.70 2 4 0.6 1.3 660
Worm
gear
2)3)
1
24 0.50 3.5 7 2.2 4.3 138
gear
2)3)
1
75 0.25 4 8 3.4 6.8 44
1) The specified permissible gearbox torque may not be exceeded.
Gearboxes can be briefly loaded (1 – 2 s when starting) with higher torques up to a maximum of twice the
continuous torque without causing permanent damage (but this does have a negative impact on the
gearbox lifetime). The gearbox could be destroyed if this limit is exceeded.
The current limits of the positioning motor (P16 and P28) are preset in the factory to prevent destruction
by the torque produced by the motor.
2) Notice: If the worm gear has to be rotated due to the mechanical design, then the mounting screws must
be subsequently tightened to a torque of 2 Nm and secured using Loctite 274. No warranty is accepted
for damage caused by incorrect changes.
3) Torsional play < 1°
Notice
The factory default setting of the parameters P16 and P28 must not be
increased.
Forced rotation acceleration or delay from the outside is permitted only
within the scope of permissible torques.
Due to the run–up time of the gearbox, elevated currents may occur
when commissioning for the first time (grease distribution in the
gearbox).
Reader’s note
Additional gearbox data ––> refer to Chapter 2.6.1
Dimension drawings of
motors and gearboxes ––> refer to Chapter C.1
Gearbox–dependent parameters ––> refer to Chapter 5.6.3
Modular gearbox,
75 W motor
2 Installing and Connecting–Up
02.9908.0410.07

Siemens SIMODRIVE POSMO A Specifications

General

Brand	Siemens
Model	SIMODRIVE POSMO A
Category	Engine
Language	English