Measurement With Up To 6 Channels; Measurement With Up To 12 Channels - Siemens SINAMICS S120 Function Manual

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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.

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.

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