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Bosch Rexroth AG | Electric Drives
Technical Data
Rated Torque
Rated Power
Rated Current
Rated Speed
Maximum Torque
Maximum Current
Maximum Speed
Power Wire Cross Section
Torque Constant at 20° C
Voltage Constant at 20°C
Thermal Time Constant
Winding Resistance at 20°C
Discharge Capacity
Number of Pole Pairs
and Controls
M
= Available torque that can be output at the rated speed in operating mode
N
S1 (continuous operation). Unit = Newton meters (Nm).
P
= Mechanical power output of the motor while running at the rated speed
N
and rated torque. Unit = kilowatts (kW).
I
= Phase current of the motor while running at the rated speed and rated
N
torque, specified as a root-mean-squared value in amps (A).
n
= Typical working speed defined by the manufacturer. Depending on the
N
particular application, other working speeds are possible (see speed-torque
characteristic curve).
M
= This is the maximum torque in Nm available using maximum current
max
I
. The achievable maximum torque depends on the drive controller used.
max
I
= Maximum voltage (effective value) of the motor at M
max
n
Maximum allowed speed of the motor in (min
max
chanical factors like centrifugal force or bearing stress.
Rated acc. to DIN VDE 0298-4 (2003) and laying procedure B2 acc. to IEC
60204-1 (1998) with conversion factor for Rexroth Cables at 40°C ambient
temperature.
The power wire cross section in mm², specified in the data sheets, can deviate
depending on the selected type of connection - plug or terminal box. Therefore,
when selecting the appropriate power cable, observe the information in chapter
8 "Connection Techniques" and to the documentation for Rexroth connection
cables, MNR R911280894 and MNR R911322948.
K
= Relation of torque increase to the motor phase-current (root-mean-
M_N
square). Unit = Nm/A. Valid up to rated current I
K
= effective value of the induced motor voltage with regard to 1 min
EMK_1
(V*min).
T
= Duration of the temperature rise to 63% of the final temperature of the
th_nenn
stators under load with rated torque in S1-operation and liquid cooling.
①
Path of the stator temperature over time
Θ
Max. stator temperature
max
T
Thermal time constant
th
Fig.4-3:
Thermal time constant
R
= Winding resistance measured between two phases in ohms (Ω).
12
C
= Capacity of short-circuited power connections U, V, W against the motor
ab
housing.
p = Number of pole pairs of the motor.
Rexroth IndraDyn T | Project Planning Manual
max
). Normally restricted by me‐
-1
.
N
. Unit Ampère (A).
-1
. Unit
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