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2 Instructions
CP1E CPU Unit Instructions Reference Manual(W483)
Data Control Instructions
2
TPO
• Input time setting = 2 (Use higher value.)
• Input time setting = 3 (Continuous adjustment)
• The output limiter function (bits 12 to 15 of C) can be enabled to restrict (saturate) output when it is
outside the range between the output limiter lower limit (C + 2) and output limiter upper limit (C + 3).
100%
a × 0.45 s
a × 0.55 s
a × 0.80 s
80%
70%
55%
0%
a ×
0.20 s
If the duty ratio rises above the initial value early enough, the duty ratio will be adjusted and the
output will be turned ON sooner. (With this setting the output’s ON/OFF order is reversed and
the output goes from OFF to ON.)
Use this setting for applications such as avoiding undershooting when using time-proportional
control to control cooling and using relatively long control period.
70% target is kept.
Control per
iod (a) Control period (a)
Time
Output
Duty ratio
(MV/MV range)
70% target
raised to 80%.
100%
100%
a × 0.35 s
0%
a ×
0.20 s
a ×
0.20 s
a ×
0.20 s
Changes in the duty ratio are monitored in real time. If the duty ratio falls below the
initial value early enough, the duty ratio will be adjusted and the output will be turned
OFF sooner. If the duty ratio rises again after that, the ratio will be adjusted again
and the output will be turned ON. This process is repeated continuously.Use this
setting to improve responsiveness when the control period is relatively long and the
duty ratio changes quickly. This setting is also appropriate for lighting or power
applications that require precise control.
Control period (a)
Control per
iod (a)
Output
Duty ratio
(MV/MV range)
: Output ON
: Output OFF
Time