Technical Data; Definitions; Rates Values; Operating Behavior - Bosch rexroth MBT Manual

MBT High Synchronous Torque Motors
4

Technical data

4.1

Definitions

4.1.1

Rates values

4.1.2

Operating behavior

All relationships and data described in the following sections may
only apply if exclusively stators and rotors of the same size are
combined (e.g. MST130C with MRT130C).
Bosch Rexroth motors are qualified and documented according to the test cri‐
teria and measuring methods of DIN EN 60034-1. The specified technical da‐
ta refers to ambient temperatures of 0 ... 40 °C and installation altitudes of up
to 1000 m above sea level. MBT motors are operated with liquid cooling and
water as coolant. Some types are also equipped with natural cooling. The
specified rating refers to an increase of the winding temperature in a steady
state of 100 K.
For further notes regarding liquid cooling, especially about adjusting the cool‐
ant inlet temperature, please refer to
264.
S1 Operation mode according to DIN EN 60034-1
P Load
P Electric losses
V
Θ Temperature
Θ Highest temperature (stator)
max
t Time
Fig. 4-1: Operation mode according to DIN EN 60034-1
The following sample characteristic curve explains the operating behavior of
the motors, based on the motor data sheet information.
The achievable motor torque depends on the drive controller used
(see Chapter 4.1.3
characteristic curves is a DC bus voltage of 540 V
chapter 9.7 "Motor cooling" on page
IndraSize). The reference value for the motor
R911298798_Edition 08 Bosch Rexroth AG
21/409
Technical data
.
DC