Encoder system connection
10.2 Sensor Module Cabinet-Mounted SMC30
250
SINAMICS S120 Combi
Manual, (GH9), 07/2016, 6SL3097-4AV00-0BP5
Damage to the encoder due to incorrect supply voltage
The encoder supply can be parameterized to 5 V or 24 V. The sensor may be destroyed if
you enter the wrong parameters.
• Select the appropriate supply voltage.
Damage to motor in the event of incorrectly connected KTY temperature sensor
A KTY temperature sensor connected with incorrect polarity cannot detect if the motor
overheats. Overheating can cause damage to the motor.
• Connect a KTY temperature sensor with the correct polarity.
You can find information for parameterizing the KTY temperature sensor in the SINAMICS
S120 Function Manual (FH1) in Chapter "Monitoring and protective functions/thermal motor
monitoring".
Danger to life due to electric shock in the event of voltage flashovers at the temperature
sensor
Voltage flashovers in the signal electronics can occur in motors without safe electrical
separation of the temperature sensors.
• Use temperature sensors that comply with the specifications relating to protectiv
e
s
eparation.
• If safe electrical separation cannot be guaranteed (for linear motors or third-party
motors, for example), use a Sensor Module External (SME120 or SME125) or Terminal
Module TM120.
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