Siemens SINAMICS S120 Manual page 349
Cabinet modules liquid cooled
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- Function manual (1094 pages) ,
- Diagnostic manual (947 pages) ,
- Manual (848 pages)
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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 fully comply with the specifications of the safety isolation.
NOTICE
Damage or malfunctions through impermissible voltage values
If the back EMF is impermissible then damage and malfunctions may occur on the
components.
• The back EMF at the outputs may only be in the range between -15 V and +15 V.
NOTICE
Damage to motor in the event of 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.
X540: Joint auxiliary voltage for the digital inputs
Table 9- 13
Connector
Max. connectable cross-section: 1.5 mm²
Note
Use of the power supply
This voltage supply is only for powering the digital inputs.
Cabinet Modules liquid cooled
Equipment Manual, 04/2020, A5E37067587A
WARNING
Terminal block X540
Terminal
8
7
6
5
4
3
2
1
Designation
+24 V
Voltage: +24 V DC
Max. total load current of +24 V auxiliary voltage for
+24 V
terminals X540 and X541 combined: 150 mA
+24 V
Continuously short-circuit proof
+24 V
+24 V
+24 V
+24 V
+24 V
9.7 G60, Terminal Module TM31
Technical data
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