Pressure Sensor System - Siemens SINAMICS S120 System Manual

Drive functions

5.11 Pressure sensor system

5.11 Pressure sensor system
Note
Sensors that are permitted
SINAMICS Hydraulic Drive uses sensors with the voltage range 0 V up to +10 V.
The appropriate signal converters must be used for sensor types -20 mA up to +20 mA or
+4 mA up to +20 mA.
Sensor adjustment
The pressure sensor should have a range of 0 to 10 V, where 0 bar pressure is represented
by 0 V and the reference value (p0240 or p0242) by 10 V.
The pressure is entered in bar in p0240 and p0242, where the pressure sensor outputs 10 V
at the A or B cylinder side.
Offset adjustment
The pressure indicator should also display 0 bar at 0 pressure. The offset must be
readjusted if the velocity controller cycle is modified.
The offset of the pressure sensor in the A or B cylinder side is adjusted in A/D converter
increments in p0241 and p0243.
Overview of important parameters (see SINAMICS S120/S150 List Manual)
• p0240[0...n]
• p0241[0...n]
• p0242[0...n]
• p0243[0...n]
186
Pressure sensor A reference value at 10 V
Pressure sensor A offset correction
Pressure sensor B reference value at 10 V
Pressure sensor B offset correction
System Manual, 04/2015, 6SL3097-4BA00-0BP1
Hydraulic Drive