4.2.3 Thermal motor protection
The motor temperature is monitored by two systems that are operated inde-
pendently of each other. The mounted temperature sensor and the drive-internal
temperature model ensure the best protection of motors against thermal over-
load.
The threshold values for motor temperature monitoring are contained in the en-
coder data memory and are read in and monitored automatically during the op-
eration with IndraDrive controllers. Threshold values for MS2N motors:
● Motor-warning temperature (140°C)
● Motor-disconnection temperature (145°C)
Motor Temperature sensor
MS2NXX-XXXXX-XXXXX-XXNXX-XX PT1000 (Standard)
MS2NXX-XXXXX-XXXXX-XXAXX-XX KTY84-130 (Service product)
900
1000
1100
1200
1300
1400
1500
1600
1700
0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170
Ohm
°C
PT1000
R
Fig. 4-1: Characteristic curve PT1000
MS2N Synchronous Servomotors 13/101
About this product
R911347581_Edition 04 Bosch Rexroth AG
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