Siemens SINAMICS S120 - Measurement with up to 6 Channels; Measurement with up to 12 Channels

Monitoring functions and protective functions
9.5 Thermal motor protection
Drive functions
Function Manual, 11/2017, 6SL3097-4AB00-0BP5
657
9.5.7.1
Measurement with up to 6 channels
Temperature measurement with a 2-wire sensor
With p4108[0...5] = 0, you evaluate a sensor in a 2-wire system at a 4-wire connection at
terminals 1 and 2. Terminals 3 and 4 remain open.
Temperature measurement with a 3-wire sensor
With p4108[0...5] = 2, you evaluate a sensor in a 3-wire system at a 4-wire connection at
terminals 3 and 4. The measuring cable is connected at terminal 1. You must short-circuit
terminals 2 and 4.
Temperature measurement with a 4-wire sensor
With p4108[0...5] = 3, you evaluate a sensor in a 4-wire system at a 4-wire connection at
terminals 3 and 4. The measuring cable is connected at terminals 1 and 2.
You can find additional information in function diagram 9626 in the SINAMICS S120/S150
List Manual.
9.5.7.2
Measurement with up to 12 channels
Temperature measurement with two 2-wire sensors
With p4108[0...5] = 1 you can acquire the signals from two sensors in 2-wire technology. The
first sensor is connected to terminals 1 and 2. The 2nd sensor (number = first sensor + 6) is
connected at terminals 3 and 4. You can find additional information in function diagram 9627
in the SINAMICS S120/S150 List Manual.
When connecting 2 2 wire sensors to terminal X531, the 1st sensor is assigned to
temperature channel 1. The 2nd sensor is assigned to channel 7 (1+6).
Up to 12 temperature sensors can be connected to a TM150.
Note
Connection diagram for 12 temperature channels
The temperature sensors connected to a TM150 are not numbered consecutively. The first 6
temperature channels retain their numbering of 0 to 5. The other 6 temperature channels are
consecutively numbered from 6 to 11, starting at terminal X531 (see function diagram 9627
in the SINAMICS S120/S150 Lists Manual).
Example of 8 temperature channels:
2x2 conductors at terminal X531: p4108[0] = 1 ≙ sensor 1 is at channel 0 and sensor 2 is at
channel 6
2x2 wires at terminal X532: p4108[1] = 1 ≙ sensor 1 is at channel 1 and sensor 2 is at
channel 7
1x3 wires at terminal X533: p4108[2] = 2 ≙ sensor 1 is at channel 2
1x3 conductor is at terminal X534: p4108[3] = 2 ≙ sensor 1 is at channel 3
1x4 conductor is at terminal X535: p4108[4] = 3 ≙ sensor 1 is at channel 4
1x2 conductor is at terminal X536: p4108[5] = 0 ≙ sensor 1 is at channel 5