Siemens SINAMICS S150 NEMA, Руководство по эксплуатации

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Functions, monitoring and protective functions
9.5 Monitoring functions and protective functions
Enclosed Drives
Operating Instructions, 12/2018, A5E36652151A
701
Parameters
•
r1408
CO/BO: Control status word, current controller
•
p1744
Motor model speed threshold stall detection
•
p1745
Motor model error threshold stall detection
•
p1755
Motor model changeover speed encoderless operation
•
p1756
Motor model changeover speed hysteresis encoderless operation
•
p2178
Motor stalled delay time
9.5.5 Thermal motor protection
9.5.5.1 Description
Description
The priority of thermal motor protection is to identify critical situations. Possible reactions can
be assigned (p0610) and used when alarm thresholds are exceeded to enable continued
operation (e.g., with reduced power) and prevent immediate shutdown.
● Effective protection is also possible without a temperature sensor (p0600 = 0 or
p4100 = 0). The temperatures of different motor components (stators, core, rotors) can be
determined indirectly using a temperature model.
● Connecting temperature sensors allows the motor temperature to be determined directly.
In this way, accurate start temperatures are available immediately when the motor is
switched on again or after a power failure.
9.5.5.2 Temperature sensor connection to customer terminal module TM31 (option G60)
Temperature measurement via KTY
The sensor is connected to terminals X522:7 (temp+) and X522:8 (temp-) on the customer
terminal module (-A60/-A65) in the forward direction of the diode. The measured tempera-
ture is limited to between -220 °F (-140 °C) and +371.5 °F (+188.6 °C) – and is made
available for further evaluation.
● Activate the motor temperature measurement via external sensor: p0600 = 10
After completion of commissioning, the source for the external sensor is set to the
customer terminal module (-A60/-A65) (p0603 = {TM31} r4105).
● Set the KTY temperature sensor type: p4100 = 2