Moving Motor For Specified Amount By Carrier Machine According To Command - Toshiba TOSVERT VF-AS3 Manual

<Operation example>
Frequency command value (Hz)
Sr1
Sr3
-Sr2
POS signal (digital input: 178/179)
Run signal (digital input: 2/3 or 4/5)
Point command signal (digital input: 10/11)
Point command signal (digital input: 12/13)
Positioning completion signal
(digital output: 118/119)
4.2 Moving motor for specified amount by carrier machine according to
command
<System example>
Motor: The induction machine and the PG are directly connected to the machine axis.
The reduction gear ratio between the motor and the machine is 1:5.
PG pulses number: 2000 pulses
PG feedback detector: VEC008Z
Move the conveyor for 200.00 mm according to the command. Acceleration/deceleration time 0.5 s, steady rate 50 Hz.
The conveyor moves 8.76 mm for one rotation of the machine.
<Parameter setting>
• Set necessary parameters before positioning control.
- PT=11
- F240=0.0
- F375=400 (2000/5=400 because it is the number of PG pulses for one rotation of the motor)
- F376=1, or 11 (depending on the encoder polarity)
- Set F460 (the gain of speed control). (Generally, set a value approx. between 3 Hz and 5 Hz)
- In addition, set ACC, DEC, motor constant, etc.
• Set parameters necessary to enable positioning control by multi-step point.
• A510=1 (Positioning control by multi-step point enabled)
• Set the electronic gears.
Decide the input unit (accuracy) of the target position. Here, it is 0.01 mm.
A524=2000 (Number of PG feedback pulses for one rotation of the machine)
A525=876 (If the unit is 0.01 mm for one position command pulse, the number of position command pulses for one
rotation of the machine is (8.76/0.01=876)
• Set the positioning point in the first step.
A544=2, A545=0 (the target position can be set by 0.01 mm by setting the electronic gears), A546=0, A547,
A548=0.5, Sr1=50.0
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