Mitsubishi Electric FR-E800, Инструкция по эксплуатации

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16. (G) Control Parameters
16.6 DC injection brake, zero speed control, servo lock, and magnetic flux decay output shutoff
16.6
DC injection brake, zero speed control, servo lock,
and magnetic flux decay output shutoff
• Adjust the braking torque and timing to stop the motor using the DC injection brake.
Zero speed control is also available under Real sensorless vector control, and zero speed control and servo lock are
selectable under Vector control.
When the DC injection brake operation is used, DC voltage is applied to the motor to prevent rotation of the motor shaft,
and when the zero speed control is used, Vector control is performed to keep 0 r/min. Either way, when a motor shaft is
rotated by external force, it does not go back to the original position.
When the servo lock control is used, the position of the motor shaft is held. When a motor shaft is rotated by external force,
it goes back to the original position.
• Select the magnetic flux decay output shutoff function to decay the magnetic flux before shutting off the output at a stop.
*1 The initial value differs depending on the inverter capacity.
 Setting of operating frequency (Pr.10)
• By setting the frequency for DC injection brake operation (zero speed control / servo lock) to Pr.10 DC injection brake
operation frequency , DC injection brake operation (zero speed control / servo lock) starts when the frequency reaches
the Pr.10 setting during deceleration.
Pr. Name Initial value Setting range Description
10
G100 DC injection brake
operation frequency
3 Hz 0 to 120 Hz
Set the operation frequency for the DC injection brake (zero speed
control / servo lock).
11
G101 DC injection brake
operation time
0.5 s
0
DC injection brake operation (zero speed control / servo lock) is not
applied.
0.1 to 10 s
Set the operation time for the DC injection brake (zero speed
control / servo lock).
8888 The operation continues while the X13 signal is ON.
12
G110 DC injection brake
operation voltage
6% / 4% /
1%
*1
0% to 30%
Set the DC injection brake voltage (torque). When set to "0", the DC
injection brake is not applied.
802
G102 Pre-excitation
selection
0
0 Zero speed control
1 Servo lock
850
G103 Brake operation
selection
0
0 DC injection brake operation is applied.
1 Zero speed control (under Real sensorless vector control)
2
Magnetic flux decay output shutoff (under Real sensorless vector
control)
422
B003
Position control gain
10 s
-1
0 to 150 s
-1
Set the position control gain for servo lock.
Inverter Initial value
FR-E820-0015(0.2K) or lower
FR-E820S-0015(0.2K) or lower
6%
FR-E820-0030(0.4K) or higher
FR-E840-0016(0.4K) or higher
FR-E820S-0030(0.4K) or higher
4%
FR-E860-0017(0.75K) or higher 1%