Mitsubishi Electric FX3U SERIES - Page 184

9 One-speed Interrupt constant quantity feed - DVIT Instruction
9.3 Function and Operation
B - 140
FX 3S /FX 3G /FX 3GC /FX 3U /FX 3UC PLC User's Manual - Positioning Control Edition
Built-in Positioning Functions
6) Interrupt input signal logical NOT
Turn the "Interrupt signal logic reverse" relay ON or OFF (see the following table) to specify the logic of
the interrupt input signal. However, if the user interrupt input command is set for the pulse output
destination device, the interrupt input signal logical NOT function cannot be used.
*1.
Y003 is available only when two high-speed output special adapters are connected to the FX3U PLC.
1. Interruption positioning operation
The interruption positioning operation is described below assuming that Y000 is specified as the pulse output
destination device by .
For this reason, if Y001, Y002, or Y003 is specified, it is necessary to change the output number of each
related flag.
 For details on related flags, refer to Section 4.1 to Section 4.4, or Section 9.2.
1) Execute the Interrupt Positioning (DVIT) instruction.
2) Transfer operation will be performed in the direction specified by the sign attached to the number of
output pulses (specified by ) at the speed specified by the output pulse frequency (specified by
).
3) If interrupt input X000 is turned on, pulses will be output until the number of output pulses reaches the
number specified by , and then the operation will stop.
4) The "instruction execution complete" flag (M8029) will turn on, and the interruption positioning operation
will be completed.
 For details on "Instruction execution complete" flag, refer to Subsection 4.7.4.
Pulse output
destination device
"Interrupt signal logic
reverse" relay
Description
= Y000
M8347
OFF: Positive logic (Turning the input ON will turn on
the interrupt input signal.)
ON: Negative logic (Turning the input OFF will turn
on the interrupt input signal.)
= Y001
M8357
= Y002
M8367
= Y003
*1
M8377
D
1
D
1
D
1
D
1
D
1
Deceleration
time
(D8349)
Bias speed
(D8342)
ON
Speed
Acceleration
time
(D8348)
Instruction execution
Interrupt input (X000)
"Instruction
execution complete" flag
M8029
Maximum speed
(D8344,D8343)
Time
Output pulse
frequency
Number of output
pulses
S1•
S2•
S
1
S
2
S
1
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