Position Control (Pr. 419, Pr. 428 To Pr. 430) By Inverter Pulse Train Input - Mitsubishi Electric FR-A720-0.4K Instruction Manual

4.6.3

Position control (Pr. 419, Pr. 428 to Pr. 430) by inverter pulse train input

Conditional position pulse train command can be input by pulse train input and sign signal (NP) from the JOG
terminal.
Parameter
Name
Number
Position command source
419
selection
428 Command pulse selection
429 Clear signal selection
430 Pulse monitor selection
The above parameters can be set when the FR-A7AP (option) is mounted.
(1) Operation
Turnign on the servo on signal (LX) cancels the base circuit 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.
Forward stroke end (STF)
Reverse stroke end (STR)
Operation ready completion (RDY)
Inverter pulse train command
In-position (Y36)
(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
Pr. 428 Setting Command Pulse Train Type
Negative
0 to 2
logic
Positive
3 to 5
logic
4)Select vector control, then select position control.
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 I/O selection setting.Pulse train input selection
Initial Value
0
0
1
9999
Forward rotation
Actual rotation
Reverse rotation
Base signal
Servo on (LX)
0.1s
Sign signal (NP)
At Forward Rotation
Pulse train + sign
Pulse train + sign
Position control by vector control
Setting
Range
Conditional position control function by contact
0
input. (position command by parameter settings)
Conditional pulse train position command by
2
inverter pulse train input
0 to 2
Pulse train + sign
3 to 5
Deviation counter is cleared at edge of turning off
0
of the clear signal (CLR) from on
Deviation counter while the clear signal (CLR) is
1
on
The status of various pulses during runnning is
0 to 5
displayed.
9999 Frequency monitor is displayed.
At Reverse Rotation
JOG
L
NP
H
JOG
L
NP H
Vector Vector Vector
Description
Negative logic
Positive logic
133
4