Siemens SINAMICS S120 Equipment Manual page 311

NOTICE
Damage to motor due to incorrectly connected KTY temperature sensor
If a KTY temperature sensor is connected with incorrect polarity, it is not possible to detect
when the motor overheats. Overheating can cause damage to the motor.
• Connect a KTY temperature sensor with the correct polarity.
Information for assigning parameters to the KTY temperature sensor can be found in the
SINAMICS S120 Function Manual "Drive Functions" in the Chapter "Monitoring and
protection functions/thermal motor protection".
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 protective
• If safe electrical separation cannot be guaranteed (e.g. for linear motors or third-party
X524 electronics power supply
Table 9- 9 X524 electronics power supply
Terminal
+
+
GND
GND
Type: Screw-type terminal 2 (Page 384)
Max. cross-section that can be connected: 2.5 mm² (AWG 14)
The maximum cable length that can be connected is 30 m.
Note
The two "+" and/or "M" terminals are jumpered in the connector. This ensures that the supply
voltage is looped through.
AC Drive
Manual, 06/2019, 6SL3097-5AL00-0BP1
Supplementary system components and encoder system integration
WARNING
separation.
motors), use a SME120 or SME125 Sensor Module External or the TM120 Terminal
Module.
Function
Electronics power supply
Electronics power supply
Electronics ground
Electronics ground
Technical data
Voltage: 24 V (20.4 ... 28.8 V)
Current consumption: max. 0.35 A
Maximum current via jumper in connector: 20 A (15 A
according to UL/CSA)
9.1 Sensor Modules
309