2
2.5 Gearbox selection
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E Siemens AG 2013 All Rights Reserved
SIMODRIVE POSMO A User Manual (POS1) – 08/2013 Edition
2.5.2 Gearboxes for SIMODRIVE POSMO A – 300 W
For SIMODRIVE POSMO A –300 W, the following gearboxes can be
selected and used according to Table 2-5:
Table 2-5 System data, modular gearbox with planetary gears
Gearbox
Stage
Step–
Effi-
Torque Rated
ber
ratio
Permissible
1)
Available
S1 briefly S1 S3
25 %
4 min
S3
6.25 %
4 min
n
(S1)
i
Gearbox Gearbox
[Nm] [Nm] [Nm] [Nm] [Nm] [rpm]
Without
gearboxes
– – – – – 0.48 0.95 1.9 3500
4 0.90 26 52 1.7 3.4 6.8 750
2)
7 0.90 26 52 3.0 6.0 12.0 429
2)
12 0.85 36 45 4.9 9.7 19.4 250
2)
Planetary
20 0.85 42 52.5 8.2 16.2 32.3 150
2)
35 0.85 44 55 14.3 28.3 55.0 86
2)
49 0.85 44 55 20.0 39.6 55.0 61
2)
3 120 0.80 100 125 46.1 91.2 125.0 25
2)
1) The specified permissible gearbox torque may not be exceeded.
The gearboxes may be briefly subject to higher torques (with associated lower lifetime) (1 – 2 s to start)
(1–stage: 200% continuous torque, 2 and 3–stage: 125% continuous torque) without the gearbox being
destroyed (this has a negative impact on the 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) Referred to the gearbox rated speed of 3000 rpm.
Notice
The factory default setting of the parameters P16 and P28 for a
factory mounted gearbox must not be increased. After a gearbox
has been changed/replaced, parameters P16 and P28 must be set
again according to Chapter 5.6.3.
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 2.6.2
Dimension drawings of
motors and gearboxes ––> refer to Chapter C.2
Gearbox–dependent parameters ––> refer to Chapter 5.6.3
Mounting or replacing gearboxes ––> refer to Chapter 7.2
Modular gearbox,
300 W motor
2 Installing and Connecting–Up
02.9910.07