Siemens SINAMICS S120 Manual page 338

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9.6 G51 to G54, temperature sensor module TM150
Table 9- 6
Terminal
X531
X532
X533
X534
X535
X536
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 to the 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.
NOTICE
Overheating of the motor through jumpering the temperature sensor connections
Jumpering temperature sensor connections "+Temp" and "-Temp" results in incorrect
measurement results. Damage to the motor can result if the overheating is not detected.
• When using several temperature sensors, separately connect the individual sensors to
NOTICE
Device failure as a result of unshielded or incorrectly routed cables to temperature sensors
Unshielded or incorrectly routed cables to temperature sensors can result in interference
being coupled into the signal processing electronics from the power side. This can result in
significant disturbance of all signals (fault messages) up to failure of individual components
(destruction of the devices).
• Only use shielded cables as temperature sensor cables.
• If temperature sensor cables are routed together with the motor cable, use separately
• Connect the cable shield to ground potential through a large surface area.
336
Channel assignment
Channel number [x]
for 1x2, 3 and 4-wires
0
1
2
3
4
5
WARNING
"+Temp" and "-Temp".
shielded cables twisted in pairs.
Channel number [y]
for 2x2 wires
6
7
8
9
10
11
Cabinet Modules liquid cooled
Equipment Manual, 04/2020, A5E37067587A