3
S
Internal Speed Control Settings
The speed of the motor is controlled with the three speeds (No. 1, No. 2, and No. 3 internal speed
settings) set in the parameters. This mode is effective for simple position control or speed-
switching operation.
S
Internal Speed Control S Position Control (HA/LA/V/W Models)
Speed control can be performed with the internal speed settings and position control can be per-
formed with pulse-train inputs.
H
Auto-tuning
The gain can be adjusted automatically when the responsiveness has been selected to match the
rigidity of the mechanical system. The auto-tuning feature automatically finds the optimum adjust-
ment to match the load, with no need for difficult operations.
H
Monitor
Displays the driver’s operating status on the Parameter Unit.
The following items can be monitored: speed feedback, speed commands, torque commands,
number of pulses from the U-phase edge, electrical angle, internal status (bit display), command
pulse’s speed, position deviation, and the input pulse counter.
H
Jog Operation
Forward/Reverse motor operation can be controlled from the Parameter Unit. Rotational speed can
be set in the parameters.
H
Electronic Gear Function (Position Control)
The number of pulses used to rotate the motor is calculated by multiplying the number of command
pulses by the electronic gear ratio. This function is useful in the following kinds of cases.
S
When you want to finely adjust the position and speed of two lines that need to be synchronized
S
When you want to increase the control pulse frequency of a controller with a low pulse frequency
S
When you want to set the movement/pulse to a certain amount, such as 0.01 mm/pulse
The electronic gear ratio is set with parameters G1 and G2 (G1=numerator and G2=denominator).
The setting range for parameters G1 and G2 is 1 to 65,535. The setting range for the gear ratio is
0.01 to 100, i.e., 0.01
≤
G1/G2
≤
100.
H
Encoder Resolution Function
This function allows the encoder signal output from the driver to be set anywhere from 16 to 2,048
pulses/revolution.
H
Software Start Function (Internal Speed Control Settings)
This function causes the motor to be started/stopped in the preset acceleration/deceleration times,
allowing a simple position control system to be constructed without a Positioner or Host Controller.
The acceleration and deceleration times are set separately, and the setting range is 0 to 10 s for
each.
Introduction
Chapter 1
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