F
N
*
To avoid damaged winding in standstill operation, limit the cur‐
rent or the operation duration.
①
When using the motor in this operating range, observe the
notes about operation at or near motor standstill described in
the project planning manual.
Fig. 12-1:
Example motor characteristic curve
The reachable motor force depends on the drive control device
used. The reference value for the technical data and the figured
characteristic curves of the motor, is an unregulated DC bus volt‐
age of 540 V
DC
.
The maximum force F
max
is available up to a speed v
Fmax
. When the velocity
rises, the available DC bus voltage is reduced by the velocity-dependent
back electromotive force of the motor. This leads to a reduction of the maxi‐
mum feed force at rising velocity.
The velocity that belongs to the continuous nominal force F
N
is known as
nominal velocity v
N
.
Parallel connection of two primary
parts at one drive controller
The following interrelations exist for the parallel connection of two primary
parts at one drive controller:
●
Doubling of currents and feed forces (unless limited by the drive control‐
ler)
●
Speed v
Fmax
and v
N
as for single arrangement
●
The same motor and voltage constant (k
F
, k
E
)
●
Halved motor resistances and inductances.
For parallel connection of two primary parts at one drive control‐
ler, appropriate motor parameters for start-up are specified in this
documentation (see
Bosch Rexroth AG
DOK-MOTOR*-ML3********-IT01-EN-P
60/103
ML3 Self-Cooled Linear Motors
Appendix
Summary of Contents for Rexroth ML3
Page 1: ...ML3 Self Cooled Linear Motors Operating instructions R911389762 Edition 01 ...
Page 16: ...Bosch Rexroth AG DOK MOTOR ML3 IT01 EN P XIV 103 ML3 Self Cooled Linear Motors ...
Page 20: ...Bosch Rexroth AG DOK MOTOR ML3 IT01 EN P 18 103 ML3 Self Cooled Linear Motors ...
Page 28: ...Bosch Rexroth AG DOK MOTOR ML3 IT01 EN P 26 103 ML3 Self Cooled Linear Motors ...
Page 54: ...Bosch Rexroth AG DOK MOTOR ML3 IT01 EN P 52 103 ML3 Self Cooled Linear Motors ...
Page 60: ...Bosch Rexroth AG DOK MOTOR ML3 IT01 EN P 58 103 ML3 Self Cooled Linear Motors ...
Page 102: ...Bosch Rexroth AG DOK MOTOR ML3 IT01 EN P 100 103 ML3 Self Cooled Linear Motors ...
Page 105: ...Notes DOK MOTOR ML3 IT01 EN P Bosch Rexroth AG 103 103 ML3 Self Cooled Linear Motors ...