Panasonic VF0 Series Instruction Manual page 47

PWM CONTROL FUNCTION SELECT, PWM SIGNAL AVERAGING and
PWM SIGNAL CYCLE (Parameters P22, 23, 24)
With this VF0, the operating frequency can be controlled with the PWM signals output from
the PLC, etc.
(Note that the tolerable PWM signal cycle is between 0.9ms and 1100ms.)
[Parameter P22: PWM control function select]
Data setting value
♦ ♦ ♦ ♦ Explanation of control circuit terminal connection and functions
1) Terminal No. 8: Frequency signal changeover input terminal
2) Terminal No. 9: PWM signal input terminal
♦ ♦ ♦ ♦ Relation of PWM signal and frequency command value
Voltage waveform across
terminals No. 9 and 3
Frequency command value (Hz) =
∗ The maximum output frequency will be "50Hz" when parameter P03 is set to "50", "60Hz"
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PWM control function
0
selection disabled
PWM control function
1
selection enabled
ON : Signal set with parameter P09
OFF : PWM signal
Input with an open collector signal having a capability of the
maximum rated voltage and current: 50VDC, 50mA or more.
when set to "60", and "parameter P15 value" when "FF" is set.
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Note) If the PWM control function is
Details
PWM cycle
ON (Tr) OFF (Tr)
ON time
PWM cycle
selected, the SW2 (terminal
No. 8) and SW3 (terminal No.
9) functions will be forcibly
changed to PWM control
dedicated functions.
SW2
8
9 Tr
3
PWM cycle
ON (Tr) OFF (Tr)
× maximum output frequency (Hz)
PWM signal
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