Mitsubishi Electric FR-A700 Series, Technical Manual

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PARAMETER
2
P
ARAM
ETE
R
2.11.4 Positioning control by pulse train input of FR-A7AL [Pr.419, 428 to 430]
(A700)
The built-in option FR-A7AL enables position control by the
programmable controller positioning unit.
(1) Operation overview [Pr. 419 = 1]
Turning ON the servo ON signal (LX) cancels the
output shut-off, and the operation ready signal (RDY)
turns ON after 0.1s. Turning ON the STF (forward
stroke end signal) or STR (reverse stroke end signal) runs the motor according to the commanded pulse.
When the forward (reverse) stroke end signal turns
OFF, the motor does not run in that direction.
A700
[Pr. ] Name Initial Value Setting Range Description
419
Position command source
selection
0
0
Simple position control function by contact input.
(position command by parameter settings)
1
Pulse train position command by programmable
controller positioning unit (when FR-A7AL installed)
2
Simple pulse train position command by inverter pulse
train input
428
Command pulse
selection
0
0
Forward rotation pulse train + reverse
rotation pulse train
Negative
logic
1 Pulse train + rotation direction sign
2 A-phase pulse train + B-phase pulse train
3
Forward rotation pulse train + reverse
rotation pulse train
Positive
logic
4 Pulse train + rotation direction sign
5 A-phase pulse train + B-phase pulse train
429
Clear signal selection
1
0
Deviation counter is cleared at edge of turning ON of
the clear signal (CLR) from OFF.
1 Deviation counter while the clear signal (CLR) is ON
430
Pulse monitor
selection
9999
0 to 5
The status of various pulses during running are
displayed.
9999 Frequency monitor is displayed.
Actual rotation
Forward rotation
Reverse rotation
Base signal
Operation ready completion (RDY)
Forward stroke end (STF)
Reverse stroke end (STR)
Forward rotation pulse train (PGP/PP)
In-position (Y36)
Servo ON (LX)
0.1s
Forward rotation pulse train (PGP/PP)