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JOGGING |
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In
most applications, it will be useful to have a "Jog" feature, where
the user can just move his motor (usually at a low rpm) to manually position
his load, or feed |
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material. The user will typically
install a pushbutton for Fwd and Rev directions, but, since our Advanced
drives do positioning from ASCII commands, the buttons |
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would be wired into a PLC, and they
would trigger the string to be sent to the drive. |
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Note
that the Jogging function in our drives is different in that it requires a
command to stop. Normally, when Jogging, merely removing the Jog input stops
the jogging |
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motion, but here, we must send the SJ
(Stop Jogging) command to actually stop the drive. |
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A
useful feature is the ability to have multiple jog speeds. You could have a
high-speed Jog to drive the motor fast, and then a much lower Jog speed to
creep into position. |
A "Fast" pushbutton could have
the CJ command with a speed value, such as "CJ10" where the drive
would Jog at 10 revs per sec, and then a "Slow" button that |
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sends the "CJ2" command, so
the drive would move at 2 revs per second. |
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The
commands used for Jogging are: |
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CJ |
Commence Jogging |
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JS |
Jog Speed |
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CS |
Change Speed |
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SJ |
Stop Jogging |
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JA |
Jog Accel |
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JL |
Jog Decel |
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