Toshiba TOSVERT VF-AS3 Manual page 15

The following diagram shows the operation of the dog method.
Frequency command value (Hz)
Sr1
A530
Z phase signal
POS signal (digital input: 178/179)
Dog signal (digital input: 186/187)
Run signal (digital input: 2/3(F), or 4/5(R))
Origin signal (digital input: 180/181)
Positioning completion signal
(digital output: 118/119)
(Caution)
• When A527=2, the position to turn ON/OFF the origin position setting signal (digital input terminal function 180/
181) should be on the positive side.
Before dog operation, move the machine in advance to a position on the positive side where the absolute value
is larger than in the position where the origin position setting signal is turned ON by normal operation (speed
control operation).
• When A527=12, the position to turn ON/OFF the origin position setting signal should be on the negative side.
Before dog operation, move the machine in advance to a position on the negative side where the absolute value
is larger than in the position where the origin position setting signal is turned ON by normal operation (speed
control operation).
• When A527=2 or 12, the motor enters in the servo lock status directly after completion of the return to origin
operation. When the near point dog signal (digital input terminal function 186/187) is turned OFF, the origin
position is updated with the servo lock status kept as it is. In this status, positioning control can be performed.
• When A527=2 or 12, if the near point dog signal is turned OFF before the positioning completion signal is turned
ON, E-47 trip occurs.
• In the case of positioning control by pulse train input (A510=2, 3), use with A528, A529=0.
The position at this time
corresponds to (A528, A529)
13
E6582187
Update the current
position at this time
Time
Settled in origin
Positioning control
possible hereafter