Siemens SINAMICS S150 NEMA, Руководство по эксплуатации

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Functions, monitoring and protective functions
9.5 Monitoring functions and protective functions
Enclosed Drives
Operating Instructions, 12/2018, A5E36652151A
711
Selection of sensor types
● p4100[0...11] sets the sensor type for the respective temperature channel.
● r4105[0...11] indicates the actual value of the temperature channel.
For switching temperature sensors, such as PTC and bimetallic NC contact, two limits are
displayed symbolically:
–
r4105[0...11] = -58 °F (-50 °C): The actual temperature value is below the rated
response temperature.
– r4105[0...11] = +482 °F (+250 °C): The actual temperature value is above the rated
response temperature.
Note
PTC and bimetallic NC contact
The value indicated in r4105[0...11] does not correspond to the actual temperature value.
Table 9- 21 Selection of sensor types
Value of p4100[0...11] Temperature sensor Temperature display range r4105[0...11]
0 Evaluation disabled -
1 PTC thermistor -58 °F (-50 °C) or +482 °C (+250 °C)
2 KTY84 -146.2 °F (-99 °C) to +482 °F (+250 °C)
4 Bimetallic NC contact -58 °F (-50 °C) or +482 °C (+250 °C)
5 PT100 -146.2 °F (-99 °C) to +482 °F (+250 °C)
6 PT1000 -146.2 °F (-99 °C) to +482 °F (+250 °C)
Measurement of cable resistances
When using 2-wire sensors (1x2, 2x2-wire systems), to increase the measuring accuracy,
the cable resistance can be measured and saved.
Procedure for determining the cable resistance:
1.
Select the measuring method (1x2/2x2) for the corresponding terminal block
(p4108[0...5] = 0, 1).
2. Set the required sensor type for the relevant channel (p4100[x] = 1 ... 6, x = 0...5
or 0...11).
3. Jumper the sensor to be connected (short-circuit the sensor cable in the vicinity of the
sensor).
4. Connect the sensor cables to the relevant terminals 1(+), 2(-) or 3(+), 4(-).
5. Start measurement of the cable resistance (p4109[x] = 1) for the relevant channel.
6. After p4109[x] = 0, check the measured resistance value in p4110[x].
7. Remove jumper across the temperature sensor again.