Bosch rexroth MCL, Project Planning Manual

Page: 158 / 206

ED
real
Possible relative duty cycle in %
P
vN
Maximum heat dissipation of the motor in W (for continuous
power loss see chapter 4 “Technical data”).
P
AVG a
Average motor power loss in application over a duty cycle time
including idle time in W
Fig. 11-22: Determining the duty cycle ED
11.4 Determining the drive power
11.4.1 General
To size the power supply module or the mains rating, you must determine the
rated (continuous) and maximum power of the linear drive.
Take the corresponding simultaneity factor into account when de‐
termine the total power of several drives that are connected to a
single power supply module.
11.4.2 Continuous power
The continuous power corresponds to the sum of the mechanical and electri‐
cal motor power.
P
c
Continuous power in W
P
cm
Mechanical continuous power in W
P
V
Electrical continuous power loss of motor in W
F
eff
Effective force in N (from application)
v
avg
Average velocity in m/s
F
N
Rated force of the motor in N (see chapter 4 ”Technical data”)
P
VN
Rated power loss of the motor in W (see chapter 4 ”Technical
data”)
Fig. 11-23: Continuous power of the linear motor
When reducing the continuous nominal force, the electric continu‐
ous power is also reduced (see fig. 11-23 "Continuous power of
the linear motor" on page 150 ).
150/197
Motor dimensioning
MCL Ironless Linear Motors
Bosch Rexroth AG R911330592_Edition 06