Interrupt 2-Speed Constant Quantity Feed - Mitsubishi FX3U-20SSC-H User Manual

FX -20SSC-H Positioning Block User's Manual
3U
9.5

Interrupt 2-speed Constant Quantity Feed

→ For details on the operation speed change and target address change, refer to Section 7.6
→ For details on the related parameters, control data, and monitor data, refer to Subsection 9.13
1. Operation
Speed
START command
Interrupt input (INT0)
Interrupt input (INT1)
Positioning
completion
1) Set the operation speed 1, operation speed 2, and target address 1.
2) Select the Interrupt 2-speed constant quantity feed from the operation patterns and activate the START
command to start the Interrupt 2-speed constant quantity feed (above figure).
(The positioning completion signal is turned OFF.)
3) At interrupt input (INT0) ON, the work piece starts accelerating/decelerating to the operation speed 2.
4) At interrupt input (INT1) ON, the work piece moves at the operation speed 2 to the target address 1, and
the operation ends, turning ON the positioning completion signal.
Note
• Interrupt input is detected in the order of INT0 and INT1.
• The travel distance for target address 1 must be larger than the deceleration distance to stop.
If the travel distance for target address 1 is smaller, the work piece decelerates as much as possible, and
the operation stops.
2. Operation speed
The actual operation speed is decided by the following calculation formulas.
- Operation speed 1
- Operation speed 2
The actual operation speed 1 and operation speed 2 can be changed using the operation speed change
function except under the following conditions.
• During deceleration operation from operation speed 2
• When the speed change disable during operation signal is ON.
3. Address specification
Specified addresses are handled as relative addresses (travel distance from the current address).
(The absolute/relative address specification is ignored.)
4. Rotation Direction
The sign of the target address decides the operation direction.
+: Operates in the direction that increases the current value. (When the value is 0, it is regarded as 1.)
-: Operates in the direction that decreases the current value.
90
Acceleration
time
Maximum
speed
Operation
speed 1
2)
ON
OFF
OFF
OFF
ON
OFF
× Override setting
× Override setting
9.5 Interrupt 2-speed Constant Quantity Feed
→ For details on the torque limit, refer to Subsection 7.8.3
→ For details on the STOP command, refer to Section 7.4
Deceleration
time
3)
Operation speed 2
4)
ON
ON
→ For details, refer to Subsection 7.10.2
9 Positioning Control
Target address 1
Time
ON