Chapter 5 Memory and Parameter
5-27
1) Unit
This is used to set the command unit during motion control, and depending on the control target, the unit of pulse, mm, inch,
and degree can be set for each axis.
When changing the setting of the unit, other parameters or variable values are not changed. Therefore, when changing the
units, the relevant parameters must be reset so that they can be adjusted to the setting range of the relevant unit.
2) Pulses per rotation
When using mm, inch, and degree for the motion control command units and indicating the speed in rpm, the number of
pulses required per motor rotation is set to be used.
3) Travel per rotation
Set the movement amount of the load side per motor rotation when using mm, inch and degree for motion control command
unit.
How the machine moves from a rotation of motor is determined by the structure of the machine.
4) Speed command unit
The base unit of the value of the speed used for the motion control command is set.
If it is set to ‘0: unit/time’, it is applied by the rate of change per second form the position of the relevant unit set in the「unit」
parameter. For example, if the setting of the 「unit」is in mm, the unit of the speed command is ‘mm/s’.
If it is set to ‘1: rpm’, rpm is applied to the speed command unit. If the speed command unit is rpm and it is internally changed
to the unit speed, values set in the 「Pulses per rotation」and 「Travel per rotation」parameters are used.
When changing the setting of the speed command unit, other parameters or variable values are not changed. Therefore, the
related parameters must also be reset according to the setting range of the relevant unit.
5) Speed limit
Speed limit refers to the maximum rate of the available setting of motion control operation.
When operating the relevant axis, the operation speed should be set below the speed limit set.
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