XW2Z-200J-B9 Omron, XW2Z-200J-B9 Datasheet - Page 298

• Manufacturer Part Number: XW2Z-200J-B9
• Description: CONNECTOR CABLE 2M
• Manufacturer: Omron

Specifications of XW2Z-200J-B9

• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: XW2Z200JB9

7-8-4
Positioning or Speed
Control Using a
Virtual Axis
Virtual Pulse Output Function
Target frequency
Internal pulse frequency
(Speed command)
Application Example
(Hz)
Execution of AXIS
Pulses generated
by AXIS
Note When the AXIS instruction’s input condition is OFF, the contents of setting
table words T+2, T+3, and T+4 will be initialized to 0.
The internal pulse count can be treated as a virtual axis position in order to
perform electronic cam operation on the real axis operation with simple curve
approximation.
First, the AXIS instruction is executed to generate an internal pulse count. The
internal pulse count is read at every cycle, that pulse count is processed with
basic arithmetic operations or the APR instruction, and the result is used as a
target position or target speed in the PULS(886) instruction. The PULS(886)
instruction (in electronic cam control) is executed immediately after the target
position or speed is calculated.
Simple locus control can be performed by executing electronic cam control
simultaneously on both pulse outputs 1 and 2 using the same virtual axis as
above.
• When trapezoidal control cannot be performed with the specified target
Execute constant cycle time
PULS (Electronic Cam
Mode) is executed in the
program with changed
target position and speed.
cycle time and calculation cycle time. (Set the constant cycle time in the
System Setup’s Cycle Time Tab Page.)
position, target frequency, and acceleration/deceleration, AXIS will auto-
matically compensate as follows:
The acceleration and deceleration rates will be set to the same rate
(symmetrical trapezoidal control).
OR
When one-half of the specified target pulses have been output, AXIS
will start decelerating the operating axis at the same rate as accelera-
tion (symmetrical triangular control).
Time
Pulse output PV (normal pulse output)
Pulse count
(Virtual pulses)
Target position
Execution of PULS
(Changes target position
and speed.)
Time
Time
Section 7-8
271