The electronic gear ratio functions:
1. Set the command pulse per rotation to ensure the motor speed meet the requirements. For
example, the PLC max output pulse frequency is 200KHz. If the electronic gear ratio is not
changed, motor needs 10000 pulses per rotation, the motor max speed is 1200rpm. If the
electronic gear ratio is 2:1 or the pulses per rotation is 5000, the motor speed can up to
2400rpm.
Example: electronic gear ratio is 1:1 or pulses per rotation is 10000, PLC max output pulse
frequency is 200KHz.
Electronic gear ratio is 2:1 or pulses per rotation is 5000, PLC max output pulse frequency is
200KHz.
2. Set the actual length per command pulse for precise positioning. For example: the object
moves 1um per command pulse. The command pulses of load rotating one circle = 6mm / 1um
= 6000. In the case of deceleration ratio is 1:1, set pulse per rotation P0-11=6000, P0-12=0.
Then if the PLC outputs 6000 pulses, the object will move 6mm.
are effective when P0-11 and P0-12 are zero.
Two circle radius ratio: 2:1
Big circle run one rotation
(need 10000 pulses), small
circle run two rotations.
Two circle radius ratio: 2:1
Big circle run one rotation
(need 20000 pulses), small
circle run two rotations.
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