Operation
8.5 Special functions
Installation and Operating Instructions SINAMICS G180
160
Operating Instructions, 02/2019, 4BS0751-007
Table 8- 9
Motor contactor functions
Terminal / component Function
-K11
Output side main contactor
Design recommendation: AC3 current of the contactor is at least the inverter
output current
41, 42
Digital output for the main contactor control
U1,V1,W1
Mains connection
8
Main contactor feedback input
55
24 V DC supply voltage
1 und 51
Jumper for ground connection
U2, V2, W2
Motor connection
8.5.2
Multiple function of the analog and digital inputs
Analog inputs 1 and 2
The analog inputs have several functions:
●
Under "P-ANALOG INPUTS/Analog input 1/AI-function" you can set the value from
"Analog" to "PTC", "KTY84" or "PT100".
●
Under "P-ANALOG INPUTS/Analog input 2/AI-function" you can set analog input 2 from
"Analog" to "PTC", "KTY84" or "PT100".
●
Also adjust the corresponding DIL switches of the -S2 switch row on board CB08
●
More detailed information can be found in the section "DIL switches S1 and S2
(Page 149)".
The following functions are now available:
●
"Analog":
The analog input operates as a voltage input at control cable terminals -X2:52-51 / 54-51
or as a current input at control cable terminals -X2:50-51 / 53-51 The value is available as
"AI 1" or "AI 2" for further processing.
●
"PTC":
The analog input operates as a PTC thermistor input at control cable terminals
-X2:50-51 / 53-51. The PTC thermistor state is available for further processing as
selection bit "PTC AI 1" or "PTC AI 2".
●
"KTY84":
The analog input operates as a direct input for a KTY84-130 temperature sensor at
control cable terminals -X2:50-51 / 53-51. The measured temperature is available as an
analog value under "T-AI1" or "T-AI 2" for further processing.
●
"PT100":
The analog input operates as a direct input for a PT100 temperature sensor at control
cable terminals -X2:50-51 / 53-51. The measured temperature is available as an analog
value under "T-AI1" or "T-AI 2" for further processing.
Any analog input can only be used for one function. It is not possible to use several functions
simultaneously for one input.
