Mitsubishi FR-A740-00023-EC, Instruction Manual

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4
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ARAME
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Position control by vector control
4.6.3 Position control (Pr. 419, Pr. 428 to Pr. 430) by inverter pulse train input
(1) Operation
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 (forward 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.
(2) Pulse train form type selection ( Pr. 428 , NP signal)
1)Set "2"(conditional pulse train position command) in Pr. 419.
2)Set "68" in Pr. 178 to Pr. 189 (input terminal function selection) to assign conditional position pulse train sign (NP).
3)Select command pulse train using Pr. 428
4)Select vector control, then select position control.
Conditional position pulse train command can be input by pulse train input and sign signal (NP) from the JOG
terminal.
Parameter
Number
Name Initial Value
Setting
Range
Description
419
Position command source
selection
0
0
Conditional position control function by contact
input. (position command by parameter settings)
2
Conditional pulse train position command by
inverter pulse train input
428 Command pulse selection 0
0 to 2
Pulse train + sign
Negative logic
3 to 5 Positive logic
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 runnning is
displayed.
9999 Frequency monitor is displayed.
The above parameters can be set when the FR-A7AP (option) is mounted.
Pr. 428
Setting Command Pulse Train Type At Forward Rotation At Reverse Rotation
0 to 2
Negative
logic
Pulse train + sign
3 to 5
Positive
logic
Pulse train + sign
REMARKS
⋅
When Pr. 419 Position command source selection = "2" (conditional pulse train position command), JOG terminal serves as
conditional position pulse train input terminal regardless of the
Pr. 291 Pulse train input selection
setting.
Vector Vector Vector
Actual rotation
Forward rotation
Reverse rotation
Base signal
Operation ready completion (RDY)
Forward stroke end (STF)
Reverse stroke end (STR)
Inverter pulse train command
Sign signal (NP)
In-position (Y36)
Servo on (LX)
0.1s
JOG
NP
H
L
JOG
NP H
L