Mitsubishi Electric FR-A700 Series, Техническое руководство

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311
PARAMETER
2
P
ARAM
ETE
R
2.11.3 Position control by the inverter pulse train input [Pr. 419, 428 to 430]
(A700)
Simple position pulse train command can be input by pulse train input to terminal JOG and sign signal (NP).
(1) Operation overview [Pr. 419 = 2]
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.
(2) Pulse train form type selection (NP signal) [Pr. 428]
1) Set [ Pr. 419 = 2] (simple pulse train position
command). In this case, terminal JOG serves as
simple position pulse train input terminal
regardless of [
Pr. 291 Pulse train I/O selection ].
2) Set "68" in [ Pr. 178 to 189 Input terminal function
selection ] to assign simple position pulse train sign
(NP).
3) Select command pulse train using [ Pr. 428 ].
4) Select vector control, then select position control.
[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 to 2
Pulse train + rotation
direction 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 running are
displayed.
9999 Frequency monitor is displayed.
A700
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
[Pr. 428]
Setting
Command Pulse Train Form At Forward Rotation At Reverse Rotation
0 to 2
Negative
logic
Pulse train + rotation
direction sign
3 to 5
Positive
logic
Pulse train + rotation
direction sign
,1)
02
*
.
,1)
02 *
.