Clear Signal Selection - Mitsubishi Electric 800 Series Instruction Manual

Position control under vector control
5.5.6

Clear signal selection

Pr.
429
Clear signal selection
B010
• 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.
Deviation counter
image
CLR/CLRN
NOTE
• The accumulated number of pulses is cleared at base shutoff or when the CLR/CLRN signal is turned ON.
• Refer to page 227
• 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)
226
PARAMETERS
Initial
Name
value
1
When Pr. 429 = "0"
ON
Counter clear at the edge of
turning on of the signal
for the condition to clear the values of the position pulse.
page 415
Setting
range
The values of the position pulse (command pulse, droop
pulse, current position, and current position 2) are
0
cleared at the rising edge when the clear (CLR/CLRN)
signal is switched from OFF to ON.
The values of the position pulse are cleared while the
1
clear (CLR/CLRN) signal is turned ON.
When Pr. 429 = "1 (initial value)"
Deviation counter
image
CLR/CLRN
Description
ON
Counter clear while ON