X520 Analog Inputs/Temperature Sensor - Siemens SINAMICS S120 Manual

8.3.3

X520 analog inputs/temperature sensor

Table 8-3 X520: Analog inputs/temperature sensor
Terminal
1
2
3
4
5
6
Type: Screw terminal 1 (Page 321)
Accuracy of the temperature measurement (temperature sensor, including evaluation):
1)
- Pt1000: ±5 °C (Pt1000 tolerance class B acc. to DIN EN 60751)
- KTY: ±7 °C
- PTC: ±5 °C
Note
Permissible voltage values
The common mode range must not be violated in order to avoid incorrect analog-digital
conversion results. The following voltages are permissible:
• Input voltage: ±30 V (destruction limit)
• Common mode voltage: ±10 V with respect to ground potential (increased errors when
exceeded)
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.
Note
In order to minimize noise emission, shielded cables should be used.
Note
The maximum cable length for a shielded cable applied on both sides to the temperature sensor
and to the analog inputs is 30 m.
Control Units and additional system components
Equipment Manual, 06/2020, 6SL3097-5AH00-0BP2
Designation Technical data
AI 0- 2 analog differential inputs
AI 0+ Voltage: -10 ... +10 V; Ri > 100 kΩ
Resolution: 12 bits + sign
AI 1-
AI 1+
+ Temp Pt1000 / KTY84-130 / PTC temperature sensor
1)
Measuring current via temperature sensor connection: 2 mA
- Temp
1)
Voltage Sensing Module VSM10
8.3 Interface description
217