47
(numerator) high
bit*10000
Group 2 Electronic
gear ratio
(denominator) low
bit*1
Group 2 Electronic
gear ratio
(denominator) high
bit*10000
Note: P0-11~P0-14 is all about the parameters of electronic gear ratio, P0-11, P0-12 is group 1, P0-13,
P0-14 is group 2, but the priority of P0-11 and P0-12 is higher than that of P0-13 and P0-14. Only
when P0-11 and P0-12 are set to 0, the ratio of electronic gear P0-13 and P0-14 will take effect. When
P0-11, P0-12, P0-13 and P0-14 are all set to 0, P0-92, P0-93, P0-94 and P0-95 will take effect.
The "electronic gear" function has two main applications: one is to adjust the number of command
pulses required by the motor to rotate one turn to ensure that the motor speed can meet the required
speed. For example, the maximum pulse frequency of the upper computer PLC is 200 KHz. If the
electronic gear ratio is not modified, the motor needs 10,000 pulses to rotate one circle, then the
maximum speed of the motor is 1200 rpm. If the ratio of the electronic gear is 131072:5000, or the
number of pulses per revolution is 5000, then the motor can reach 2400 rpm speed.
Take 17-bit encoder motor as an example: the ratio of electronic gears is 131072:10000 or the
number of pulses per revolution is 10000, and the highest frequency of pulse transmitted by PLC is 200
KHz.
Electronic gear ratio is 131072:5000 or pulses per rotation is 5000, PLC max output pulse
frequency is 200KHz.
Two circle radius ratio: 2:1
Big circle run one rotation
(need 20000 pulses), small
circle run two rotations.
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