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Technical data of the components
Description
Torque constant at 20 °C
5)
Voltage constant at 20 °C
6)
Rotor inertia
Thermal time constant
Maximum speed
Insulation class according to
DIN EN 60034–1
Data of optional holding brake
Holding torque
Clamping delay
Release delay
Brake mass
Holding brake inertia
Bosch Rexroth AG R911335703_Edition 04
Symbol
Unit
Definition
K
Nm/A
Ratio of torque to current in the motor winding (r.m.s. value) at
M_N
motor temperature 20 °C. Unit (Nm/A).
K
R.m.s. value of the induced motor voltage at motor
V/min
-1
EMK_1000
temperature 20 °C and 1000 revolutions per minute. Unit (V/
1000 min
J
Rotor inertia
kg*m
2
rot
T
min
Time of the temperature rise to 63% of the end temperature of
th
the motor housing with the motor loaded with the allowed S1
continuous torque. The thermal time constant is determined by
the size of the motor and the cooling type used.
1: course of the motor housing temperature over time
Θ
: highest temperature (motor housing)
max
T
: thermal time constant
th
n
Maximum allowed speed of the motor. Limiting factors can
min
-1
max
have mechanical (centrifugal forces, bearing stress) or
electrical (DC bus voltage) causes.
Insulation class
M
Nm
Transmittable holding torque
4
t
ms
ON delay when clamping
1
t
ms
Release delay
2
m
kg
Add mass of holding brake to mass of motor
Br
J
Add holding brake inertia to rotor inertia
kg*m
2
rot
1)
Suitable for use on a circuit capable of delivering not more than
this SCCR value, 600 V AC or less. The drive series shall be
used with listed AC input line fuses or listed circuit breakers
specified in this documentation.
2)
According to DIN EN ISO 11205; comparative value at 1 m dis‐
tance, out of cabinet
3)
KCU02: DC bus input L+/L-
4)
Also depending on firmware and control section; see parame‐
ter description "P–0–0001, Switching frequency of the power
output stage"; see "P-0-4058, Amplifier type data"
IndraDrive Mi Drive Systems with KCU02, KSM02,
KMS02/03, KMV03, KNK03, KLC03
-1
).
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