Installation
Instruction handbook bmaXX 5000
Document No.: 5.09021.19
147
of 346
7
7.11 Requirements for the motor temperature sensors
To protect the motor against impermissible overheating, a motor temperature sensor can
be connected to the bmaXX device. The device switches off of the motor when a settable
threshold temperature has been exceeded.
1)
Motor protection thermistor (PTC) as per DIN 44080-082
NOTICE!
The motor must be protected against overtemperature according EN 61800-5-1.
The device‘s integrated monitoring function „Overtemperature Motor“ fulfills this re-
quirement.
The user is responsible for realization of the motor overtemperature monitoring ac-
cording EN 61800-5-1 in case the used motor is not equipped with a motor tempera-
ture sensor or the sensor is not connected.
NOTE!
The thermal memory of the motor and the speed-dependent electronic motor over-
load protection is not available if no motor temperature sensor is used.
Type Additional requirements: Isolation
KTY84/PT1000 - SELV/PELV
MSKL
1)
(PTC) R = 1 k at T
Protection
, I
max
< 2 mA SELV/PELV
NOTE!
The motor temperature sensor should be installed in such a manner that „electrically
protective 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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