Delta HES Series Instructions For Use Manual page 46

Chapter 3 Flow of machine AdjustmentHES Series
Verify if the setting value of Pr01-18 (Rated power of the synchronous motor) is the rated

power (kW) of the corresponding motor. Verify also if the setting value of Pr00-07(Maximum
value for the pressure command (bar)) fits version G, H, Z, and M.
Step 3.Check Pressure Feedback Signal
Firs, set input voltage Pr. 00-04 = 11 PO

Selection of Display Mode
Pr. 00-04
Set Pr. 00-08=corresponding pressure settings of the 10V pressure sensor

Maximum value of pressure feedback
Pr. 00-08
Set speed command to 10rpm and press【RUN】. Check the pressure value is >0 on the

pressure gauge.
When the pressure value is
Gradually increase the rotation speed.

Check that each directional valve is closed.

When the pressure value is ＞0
Check that the voltage reading displayed on the operation panel is consistent with the

pressure reading on the pressure gauge.
Example:
reading is 50 bar, the output voltage on the pressure sensor should be
approximately 50/250*10=2V. So the voltage displayed on the operation panel will
be 20.0(%).
Meanwhile, observe if there is any oil leak.

Step 4. Check Pressure and Flow Commands
This action does not need to start the servo oil pump.

For the firmware version is 2.04 and above, theoretical values of three-point calibration of

pressure and flow commands are auto-imported after entering HES ID code. Afterward,
carry on the detailed adjustment with the following methods.
Pr. 00-09 = 1 refers to the pressure control mode

Pressure Control Mode
Pr. 00-09
Pr. 00-04 = 12 sets the PI input voltage

Selection of Display Mode
Pr. 00-04
Pr. 00-07 = corresponding pressure value with 10V on the pressure controller command

Maximum pressure command
Pr. 00-07
11: Display the signal of PO analog input terminal, with 0~10V
corresponding to 0~100%.
0~250Bar
≤
0,
10V on the pressure sensor corresponds to 250bar. When the pressure gauge
0: Speed control
1: Pressure control
12: Display the signal value of the PI analog input terminal, with
0~10V corresponding to 0~100%.
0~250Bar
3-8