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
712
Operating Instructions, 12/2018, A5E36652151A
The measured cable resistance is then taken into account when evaluating the temperature.
The cable resistance value is saved in p4110[0...11].
Note
Line resistance
The value for the cable resistance in p4110[0...11] can also be entered directly.
Line filter
A mains filter is available to suppress radiated noise. Using p4121, the filter can be set to a
50 Hz or 60 Hz rated line frequency.
9.5.6.2 Measurement with up to 6 channels
Temperature measurement with a sensor in 2-wire technology
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 sensor in 3-wire technology
With p4108[0...5] = 2, you sense the signals from a sensor in 3-wire system at a 4-wire
connection at terminals 3(+) and 4(-).
The measuring wire is connected at terminal 1(+).
You must short-circuit terminals 2(-) and 4(-).
Temperature measurement with a sensor in 4-wire technology
With p4108[0...5] = 3, you sense the signals from a sensor in a 4-wire system at a 4-wire
connection at terminals 3(+) and 4(-).
The measuring wire is connected at terminals 1(+) and 2(-).
9.5.6.3 Measurement with up to 12 channels
Temperature measurement with two sensors in 2-wire technology
With p4108[0...5] = 1, you sense two sensors in a 2-wire system.
The first sensor is connected at terminals 1(+) and 2(-).
The second sensor (number = first 6) is connected at terminals 3(+) and 4(-).
When connecting two sensors in a 2-wire system to terminal X531, the first sensor is
assigned to temperature channel 1 and the second sensor is assigned to channel 7 (1+6).