Mitsubishi Electric 800 Series, Инструкция по эксплуатации, Страница: 227 / 727

Position control under vector control
226
PARAMETERS
5.5.6
Clear signal selection
• This function is useful to reset the number of droop pulses to 0 when home position return is performed.
• The Simple position droop pulse clear (CLR) signal is valid when the inverter is in the External operation mode. The NET
position pulse clear (CLRN) signal is valid when the inverter is in the Network operation mode (not applicable when the FR-
A8NS is installed).
• If the simple position droop pulse clear (CLR) signal is turned ON when Pr.429 Clear signal selection = "0", the deviation
counter is cleared at the edge of the signal. The CLR/CLRN signal is also turned ON in synchronization with the zero pulse
signal of the encoder such as the home position return signal, and the deviation counter is cleared.
• For a terminal used for the CLR signal, set "69" in any of Pr.178 to Pr.189 (Input terminal function selection) to assign
the function.
• For a terminal used for the CLR signal, set "59" in any of Pr.178 to Pr.189 (Input terminal function selection) to assign
the function.
NOTE
• The accumulated number of pulses is cleared at base shutoff or when the CLR/CLRN signal is turned ON.
• Refer to
page 227 for the condition to clear the values of the position pulse.
• Changing the terminal assignment using Pr.178 to Pr.189 (Input terminal function selection) may affect the other
functions. Set parameters after confirming the function of each terminal.
??????? Parameters referred to
Pr.178 to Pr.189 (Input terminal function selection) page 415
Pr. Name
Initial
value Setting
range
Description
429
B010
Clear signal selection
1
0
The values of the position pulse (command pulse, droop
pulse, current position, and current position 2) are
cleared at the rising edge when the clear (CLR/CLRN)
signal is switched from OFF to ON.
1
The values of the position pulse are cleared while the
clear (CLR/CLRN) signal is turned ON.
Deviation counter
image
CLR/CLRN
ON
When Pr. 429 = "0" When Pr. 429 = "1 (initial value)"
Deviation counter
image
CLR/CLRN
ON
Counter clear while ON Counter clear at the edge of
turning on of the signal