Sanken SVCO6, Инструкция по эксплуатации, Страница: 251 / 326

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7
7-3 Description of Functions
(1) Example 1 of zero-servo action: F8119=1 (zero-servo switching under zero speed)
When stop command is ON and the speed is decelerated to zero speed (F8120), please switch to position control
mode and carry out stop actions. When restarted with a run command (FR, RR) ON, it will run again with the speed
control mode.
Note 1: When stopping the inverter completely from zero speed status, please set the free run terminals (MBS) of
multi-function terminals on main control panel to ON.
Note 2: Please note that when switching the zero-servo (speed) under high-speed rotation, there may be an over-current or
over-voltage causing an inverter shutdown alarm. When switching from speed control to position control, please
carry out this action under low speed as possible.
Note 3: When inputting command pulse during zero-servo, run the inverters with a position control mode according to the
input pulse. (An optional board of SC-PG is required for command pulse inputting)
*
For positioning complete signal and positioning complete width, please refer to the following position control
function.
Motor speed waveform
Forward
Zero speed
Reverse
Zero speed
Gate OFF
Gate ON signal
Motor
control mode
Speed control Speed control
Speed control
Position control
Position control
Position deviation
Zero-servo complete
Positioning complete
Zero-servo complete width
Zero-servo complete width
Positioning complete range
Positioning complete range