Basic description of PCL series
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(2) Turn ON the SD signal and when the ORG signal goes ON the LSI starts counting the EZ pulses. When the
number of EZ pulses reaches the preset value, stop the motor.
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The zero return method described in (1) may
have a deviation of a few pulses from the actual
zero point. This is method allows returning to the
zero position more accurately, using the Z-phase
signal from an encoder.
The number of EZ pulses counted can be set
between 1 and 16.
(3) When the ORG signal goes ON, the motor starts to decelerate and begins counting EZ pulses. When the
number of EZ pulses counted reaches the preset value, the motor stops.
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This method uses the ORG sensor in place of
the SD sensor. You can use it if you want to
avoid using the SD sensor.
(4) When the R0 pre-register set value is reached, the motor stops.
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This mode is basically the same as described in
(1) to (3) above. However, the motor will stop
when the number of pulses is equal to the R0
pre-register value, and does not require
returning to the zero position.
One example of its use is to zero-return the
motor using rotation, if the ORG sensor is
disconnected or broken, the ORG signal cannot
be input so the motor can never stop.
Then, by setting a rather larger number of pulses
in R0, the motor can be stopped when it reaches
that number of pulses. If the motor is stopped in
this way, arrange to output an error, and you will
know that there is a problem on or around the
ORG sensor.
(5) Moving away from zero position
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This method is used to stop the motor after the ORG signal goes ON and then OFF. This is used in cases
where the first ORG ON does not really occur at the zero position.
<Figure 11>
ｔ
ｆ
ORG = ON
ＦＬ
ＦＨ
Count the specified
number of EZ pulses
and then stop
Start deceleration when
SD goes ON
<Figure 12>
ｔ
ｆ
ＦＬ
ＦＨ
Stop after counting
the preset number of
EZ pulses
Start to decelerate when
ORG goes ON
Put a large amount in R0 as a preset value, if the
ORG sensor is broken, the motor can be stopped
when the pulses equal this preset amount.
ORG sensor
<Figure 13>
