Technical data

4-2 Technical Data Rexroth IndraDyn T
DOK-MOTOR*-MBT********-PR03-EN-P
Characteristics
Available torque, in Nm that can be output at the rated speed in operating
mode S1 (continuous operation).
Power consumption, in kW, of the motor at the rated speed and rated
torque.
The rms phase current of the motor running at rated speed and rated
torque, in amps (A).
Typical working speed, in rpm, as defined by the manufacturer.
Depending on the particular application, other working speeds are
possible (see speed-torque curve).
The torque in Nm, available at peak current, I
max .
The maximum
achievable torque depends on the drive controller used.
Th rms (root mean square) current of the motor at M
max
. Unit = ampere
(A).
Maximum allowable speed in rpm, of the motor in (rpm). This value is
normally restricted by mechanical factors such as centrifugal forces or
bearing loads.
The ratio, in Nm/A, of the increase in torque versus the increase in the
motors`s rms phase-current. Valid up to rated current, I
N
.
Root mean square value ,in V/rpm, of the induced motor voltage versus
the motor speed.
Length of time, in minutes, required for the temperature rise to 63% of the
final temperature with the stator under rated torque, in S1 operation and
using liquid cooling.
0%
63%
100%
t/min
Q
max
T
th
1
~ 5x T
th
Q
MK000014v01_MS.fh10
(1): Characteristic curve of the stator temperature versus time
Θ
max
: max. stator temperature
T
th
: thermal time constant
Fig. 4-3: Thermal time constant
The resistance, in ohms, measured between two phases.
Capacity of short-circuited power connections U, V, W against the motor
housing.
Number of pole pairs of the motor.
The moment of inertia, in kgm², of the rotor without brake, bearing and
encoder.
The mass, in kg, of the stator and rotor, without bearing and encoder.
Rated torque M
N
Rated power P
N
Rated current I
N
Rated speed n
N
Maximum torque M
max
Peak current I
max
Maximum speed n
max
Torque constant at 20°C K
M_N
Voltage constant at 20°C K
EMF_1
Thermal time constant T
th
Winding resistance at 20°C R
12
Discharge capacity C
ab
Number of pole pairs p
Rotor moment of inertia J
rot
Stator/rotor mass m