Mitsubishi Electric NZ2GFCF-D62PD2 User Manual page 182

● The waveform that is output from the coincidence output 1 to 4 terminals (EQU 1 to EQU4), the external output terminals,
can be affected by output circuits or connected devices of the high-speed counter module and change its form.
Therefore, check the waveform by using, for example, a synchroscope, and set the output waveform.
● When changing the cycle time of the PWM waveform, turn off CH PWM output start command (RY26, RY3E) to turn off
CH PWM output (RX26, RX3E). After checking that CH PWM output (RX26, RX3E) is off, change the setting of CH
Cycle setting (PWM output) (RWw20 to RWw21, RWw38 to RWw39), and turn on CH PWM output start command
(RY26, RY3E) again.
● When the ON time is changed during PWM output, the change is reflected immediately, therefore, the ON time before the
change may be interrupted at the cycle in which the ON time is changed. When the ON time after the change is shorter
than the ON time before the change, unnecessary OFF waveform may be output depending on the changing timing.
When the ON time after the change is longer than the ON time before the change, the ON waveform may be output at the
time of the change depending on the changing timing.
180
Waveform before
the change
Waveform after
the change
Waveform to
be output
T
T: Cycle time
t: (Remaining ON width before the change) - (ON width after the change)
Waveform before
the change
Waveform after
the change
Waveform to
be output
T
T: Cycle time
t: (Remaining OFF width before the change) + (ON width after the change)
Change of the ON
width of PWM output
t
Change of the ON
width of PWM output
t