ED
Relative duty cycle in %
Δt
P
Operating time with constant load
Fig.4-2:
Relative duty cycle
The values specified in the documentation have been determined on the ba‐
sis of the following parameters:
Cycle time: 15 min
Duty cycle DC: 25%
4.1.4
Definition of Parameters
Continuous torque at standstill 60K Symbol
M
0_60
Unit
Nm
Continuous torque that can be applied to the motor output shaft at a speed of
n ≥ 0.1 Hz.
Continuous current at standstill 60K Symbol
I
0_60(eff)
Unit
A
Phase current (crest value) of the motor M
0_60
required for the continuous torque at
standstill at a speed of n ≥ 0.1 Hz.
Maximum torque
Symbol
M
max
Unit
Nm
Maximum torque that can be applied for about 400 ms at maximum current I
max
. The
maximum torque that can be attained depends on the drive control device used. Only
the specified maximum torque in the selection lists is binding.
Maximum current
Symbol
I
max(eff)
Unit
A
Maximum, briefly permissible phase current of the motor winding without adverse affect
on the permanent magnet circuit of the motor.
Torque constant at 20° C
Symbol
K
M_N
Unit
Nm/A
Relation of created torque to motor phase current at motor temperature of 20 °C. Valid
up to i = 2x I
0_60
.
Voltage constant at 20°C
Symbol
K
EMK_1000
Unit
V/min
-1
Root-mean-square value of the induced motor voltage at a motor temperature of 20 °C
and 1,000 revolutions per minute.
Winding resistance at 20 °C
Symbol
R
12
Unit
Ohm
Measured winding resistance between two strands.
Winding inductivity
Symbol
L
12
Unit
mH
Measured inductivity between two strands.
Discharge capacity
Symbol
C
ab
Unit
nF
Capacitiy of short-circuited power connections U, V, W against the motor housing.
Bosch Rexroth AG
DOK-MOTOR*-MKE*GEN2***-PR06-EN-P
Rexroth MKE Synchronous Motors for Potentially Explosive Areas acc. to ATEX and UL/CSA
24/135
Technical Data
LSA Control S.L. www.lsa-control.com [email protected] (+34) 960 62 43 01
