8.5.7.1
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 to 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 to terminals 1 and 2.
You can find additional information in function diagram 9626 in the SINAMICS S120/S150
List Manual.
8.5.7.2
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 second 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 two 2-wire sensors to terminal X531, the first sensor is assigned to
temperature channel 1. The second 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).
Drive functions
Function Manual, (FH1), 01/2013, 6SL3097-4AB00-0BP3
Monitoring and protective functions
8.5 Thermal motor protection
549