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Motor current is normally set on the
main screen of the PSMCC and applies to all program instructions. But
what if you want to change the current on command? For example, you may
want to temporarily turn off the motor current while the operator makes
manual adjustments to a mechanism. Overcoming the holding torque of a
step motor by hand can be difficult, so it's sometimes best to shut off
the current completely. |
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In other cases, you may want to
temporarily increase the motor current to achieve more torque, but are
unable to leave it that way all the time without overheating.
The Change Current instruction allows
you to turn off the current, to resume the normal current setting, or to
specify a new current setting. |
