Omron SYSMAC CJ - REFERENCE MANUAL 08-2008 Reference Manual page 832

Data Control Instructions
792
• Input time setting = 1 (Use lower value.)
100%
70%
Duty ratio
55%
(MV/MV range)
35%
0%
Output
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.
Use this setting for applications such as avoiding overshooting when using time-
proportional control to control heating and using a relatively long control period.
• Input time setting = 2 (Use higher value.)
100%
80%
Duty ratio
70%
(MV/MV range)
55%
0%
Output
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.
Control period (a)
55% target
cut to 35%.
a 0.35 s a 0.65 s
Control period (a)
70% target is kept.
a 0.45 s
a 0.55 s
Section 3-18
Control period (a)
70% target
is kept.
a 0.70 s a 0.30 s
Control period (a)
70% target
raised to 80%.
a
0.20 s
a 0.80 s
Time
Time