8
Functions Listed by Purpose
Section 1-3
Note
PWM(891) output 1 is not supported by the CJ1M-CPU21.
Perform fixed distance
feed interrupt.
Built-in
Outputs
Pulse out-
puts 0 and
1
Execute positioning
with the PLS2(887)
instruction during an
operation started with
SPED(885) (continu-
ous) or ACC(888) (con-
tinuous).
When a speed control operation started with
the SPED(885) instruction (continuous) or
ACC(888) instruction (continuous) is in
progress, the PLS2(887) instruction can be
executed to switch to positioning, output a
fixed number of pulses, and stop.
After determining the
origin, perform position-
ing simply in absolute
coordinates without
regard to the direction
of the current position
or target position.
Built-in
Outputs
Pulse out-
puts 0 and
1
The positioning direc-
tion is selected auto-
matically in the absolute
coordinate system.
When operating in absolute coordinates
(with the origin determined or INI(880)
instruction executed to change the PV), the
CW or CCW direction is selected automati-
cally based on the relationship between the
pulse output PV and the pulse Output
Amount specified when the pulse output
instruction is executed.
Perform triangular con-
trol.
Built-in
Outputs
Pulse out-
puts 0 and
1
Positioning with the
ACC(888) instruction
(independent) or
PLS2(887) instruction.
When a positioning operation started with
the ACC(888) instruction (independent) or
PLS2(887) instruction is in progress, triangu-
lar control (trapezoidal control without the
constant-speed plateau) will be performed if
the number of output pulses required for
acceleration/deceleration exceeds the speci-
fied target pulse Output Amount.
(The number of pulses required for accelera-
tion/deceleration equals the time required to
reach the target frequency x the target fre-
quency.)
Use variable duty ratio
outputs for time-propor-
tional temperature con-
trol.
Built-in
Outputs
PWM(891)
outputs 0
and 1
(See note.)
Control with analog
inputs and the variable
duty ratio pulse output
function (PWM(891))
Two of the built-in outputs (bits 04 and 05 of
CIO 2961) can be used as PWM(891) out-
puts 0 and 1 by executing the PWM(891)
instruction.
Purpose
I/O used
Function
Description
Summary of Contents for CJ1M-CPU21
Page 1: ...Cat No W395 E1 03 CJ series Built in I O CJ1M CPU21 22 23 CJ1M CPU Units...
Page 2: ...CJ series Built in I O CJ1M CPU21 22 23 CPU Units Operation Manual Revised August 2004...
Page 3: ...iv...
Page 19: ...xx...
Page 79: ...50 Wiring Examples Section 3 3...
Page 217: ...188 Origin Search and Origin Return Functions Section 6 3...
Page 220: ...191 Built in Outputs Section 7 1...
Page 247: ...218 Built in Outputs Section 7 1...
Page 251: ...222 Combinations of Pulse Control Instructions Appendix A...
Page 255: ...226 Using Pulse Instructions in other CPU Units Appendix B...
Page 263: ...234 Index...
Page 265: ...236 Revision History...