6-6
6.4
Reference from Pulse Input (00-05=7)
S3
GND
0V
Serial pulse input
(Input resistance : 3.89 K)
Specifications
Low Input Level
:
0.0 to 0.5 V
High Input Level
:
4.0 to 13.5 V
Duty cycle
:
(ON / OFF) 30 % to 70%
Pulse Input Frequency Range
:
50 to 25 KHz
Set Pulse Input Setup as Frequency Reference
Set parameter 00-05 to 7 and 03-02 to 26 to use the pulse input terminal S3 as the frequency reference source.
Next set the pulse frequency (03-27).
When 03-02=26, S3 is used for frequency measurement.
Set the following parameters to use pulse input for speed command:
00-05=7
03-02=26
03-28=1 (adjust if needed)
Example 1:
Pulse input frequency is 20Hz, frequency upper limit is 50Hz (00-12=50.00), and 03-28=1.
Inverter frequency is 20.00Hz
Example 2:
Pulse input frequency is 45Hz, frequency upper limit is 50Hz (00-12=50.00), and 03-28=1.
Inverter frequency is 45.00Hz
Example 3:
Pulse input frequency is 55Hz, frequency upper limit is 50Hz (00-12=50.00), and 03-28=1.
Inverter frequency is 50.00Hz
Example 4:
Pulse input frequency is 2000Hz, frequency upper limit is 599 Hz (00-12=599.00), and 03-28=0.2.
Inverter frequency is 2000 x 0.2 = 400.00Hz