Delta’s HES system supports voltage types of pressure sensors (Range: 0 ~ 10 VDC) as standard, and the pressure feedback selection is set to Voltage (parameter 03-12 = 1) as the factory default setting. At present the system also supports current types of pressure sensors (Range: 4 ~ 20 mA). Before using it, the user only needs to switch the SW100 on the I/O board to “I” and set the parameter 03-12 to 0 to complete the settings.