Mitsubishi FR-A846-00023 Instruction Manual page 140

2
NET position pulse clear (CLRN) signal
• When the inverter is in the Network operation mode, the droop pulses can be cleared by the NET position pulse clear
(CLRN) signal.
Clear signal selection (Pr.429, CLR signal, CLRN signal)
• This function is useful to reset the number of droop pulses to 0 when home position return is performed.
• Simple position droop pulse clear (CLR) signal is valid when the inverter is in the External operation mode, and the NET
position pulse clear (CLRN) signal is valid when the inverter is in the Network operation mode (except when the FR-A8NS
is installed).
• If the position droop pulse clear (CLR/CLRN) signal is turned ON when Pr.429 Clear signal selection (clear signal
selection)= "0", the deviation counter is cleared at the edge of the signal. The Simple position droop pulse clear 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/CLRN 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 CLRN 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 signal is turned ON.
• 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)
When Pr. 429 = "0"
ON
Counter clear at the edge of
turning on of the signal
5.12.8 Input terminal function selection
When Pr. 429 = "1 (initial value)"
Deviation counter
image
CLR
(CLRN)
of the Instruction Manual (Detailed)
ON
Counter clear while ON
APPENDIX
139