Lenze G50BS113 User Manual

Temperature monitoring
Thermal detectors PT1000
The thermal detector used connuously monitors the motor temperature. The temperature
informaon is transferred to the inverter using the system cable of the feedback system. This
is not a full motor protecon!
This makes it possible to determine the motor temperature in the permissible operang range
with great accuracy.
The thermal sensors used connuously monitor the motor temperature. The temperature
informaon is transferred to the inverter using the system cable of the feedback system. This
is not a full motor protecon!
The motors are monitored via three thermal sensors connected in series (1x PT1000 + 2x PTC
150 °C ). This makes it possible to determine the motor temperature in the permissible
operang range and at the same me execute the overtemperature response congured in
the inverter in one of the winding strands.
The three thermal sensors connected in series are idened on the nameplate
by the short designaon "PT1k+2PTC".
When supplying the thermal sensors with a measurement current of 1 mA, the
connecon between the temperature and the resistance measured applies.
T [°C]
W
R [Ω]
1000
1200
1400
1600
1800
2000
2200
2400
2600
2800
3000
0 20 40 60 80 100 120 140 160 180
R Resistance
T
W
Winding temperature
Product extensions
Temperature monitoring
Thermal detectors PT1000
143

Lenze G50BS113 Specifications

General

Brand	Lenze
Model	G50BS113
Category	Industrial Equipment
Language	English