Requirements for the motor temperature sensors
Instruction handbook b maXX 5000
Document No.: 5.09021.16 Baumüller Nürnberg GmbH
140
of 328
7.11
Installation of toroidal cores
h T
he three phases without shielding and without PE must be lead through the cores.
The cores must be installed and attached near the motor connection of the 5000.
h When
using toroidal cores it is further recommended to use current isolated bearings
on the nondrive end for synchronous/asynchronous main drives sizes 180 and higher.
Figure 62: Mounting - single ring core Figure 63: Mounting - several ring cores
7.11 Requirements for the motor temperature sensors
To protect the motor against impermissible overheating, a motor temperature sensor can
be connected to the b maXX
device. The device switches off of the motor when a settable
threshold temperature has been exceeded.
Type Additional requirements: Isolation
KTY84/PT1000 - SELV/PELV
MSKL
1)
(PTC) R = 1 k at T
Protection
, I
max
< 2 mA SELV/PELV
1)
Motor protection thermistor (PTC) as per DIN 44080-082
NOTE!
The motor temperature sensor should be installed in such a manner that „electrically
pr
otective separation“ is ensured. The motor temperature sensors integrated into
Baumüller motors meet these requirements. If third-party motors are connected, the
operating company must ensure that the temperature sensors used in the motor of a
third-party manufacturer motor comply with the „electrically protective separation“
function.
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