Mitsubishi Electric FR-A720-0.4K Instruction Manual page 144

Position control by vector control
(3) Selection of clear signal (Pr. 429, CLR signal)
⋅ Use this function to zero the droop pulse for home position operation, etc.
⋅ When "0" is set in Pr. 429 , the deviation counter is cleared at the edge of truning on of the clear signal (CLR). In
addition, the CLR signal truns on in synchronization with zero pulse signal of the encoder at home position
operation, etc. and deviation counter is cleared.
⋅ For the terminal used for CLR signal, set "69" in any of Pr. 178 to Pr. 189 (input terminal function selection) to assign
the function.
Deviation counter
image
CLR
(4) Pulse monitor selection (Pr. 430 )
The status of various pulses during running is displayed.
Set "6" in Pr. 52 DU/PU main display data selection to display output frequency monitor.
Pr. 430
Setting
0
The cumulative command pulse value is displayed.
1
2
The cumulative feedback pulse value is displayed.
3
4
The droop pulses are monitored.
5
9999 Frequency monitor is displayed. (initial value)
REMARKS
⋅ Count the number of pulses when the servo is on.
⋅ The cumulative pulse value is cleared when the base is shut off or the clear signal (CLR) is turned on.
CAUTION
⋅ Changing the terminal assignment using Pr. 178 to Pr. 189 (input terminal function selection) may affect the other functions. Make
setting after confirming the function of each terminal.
♦Parameters referred to♦
Pr. 52 DU/PU main display data selection
Pr. 178 to Pr. 189 (input terminal function selection)
134
When Pr. 429 = "0"
Deviation counter
ON
Counter clear at the edge of
turning on of the signal
Description
Refer to page 242
Refer to page 221
When Pr. 429 = "1 (initial value)"
image
CLR
Counter clear while ON
Display Range
(FR-DU07)
Lower 4 digits
Upper 4 digits
Lower 4 digits
Upper 4 digits
Lower 4 digits
Upper 4 digits
ON
Display Range
(FR-PU04)
Lower 5 digits
Upper 5 digits
Lower 5 digits
Upper 5 digits
Lower 5 digits
Upper 5 digits