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Description
2.5 Design
NOTICE
Motor destroyed as a result of overtemperature
The motor can be destroyed if the motor winding overheats.
• Connect Temp-S.
• Evaluate Temp-S.
• Ensure that the shutdown time is not exceeded.
Note
No temperature monitoring with Temp-S
As a result of their non-linear characteristic, PTC temperature sensors are not suitable for
determining the instantaneous temperature.
Temp-F
The Temp-F temperature monitoring circuit comprises an individual temperature sensor.
Contrary to Temp-S, this temperature sensor only monitors one phase winding. As a
consequence, Temp-F is only used for monitoring the temperature and diagnosing the motor
winding temperature.
NOTICE
Motor destroyed as a result of overtemperature
If you use Temp-F for thermal motor protection, then the motor is not adequately protected
against destruction as a result of overtemperature.
• Evaluate the Temp-S temperature monitoring circuit to implement thermal motor
Temp-F as KTY 84 or Pt1000
The 16th Position of the order designation on the stator rating plate indicating as to whether
a KTY 84 or a Pt1000 is installed, see Rating plate data (Page 35):
1FW6xxx-xxxxx-xxx1:
1FW6xxx-xxxxx-xxx3:
40
protection.
with KTY 84
with Pt1000
Naturally cooled 1FW6 built-in torque motors
Operating Instructions, 07/2017, 6SN1197-0AF02-0BP2
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