Mitsubishi Electric FR-A820-00046 (0.4K) Instruction Manual page 219

 Selecting the fast-response operation (Pr.800 (Pr.451) = "100 to 106, or
109 to 114")
• Setting Pr.800 (Pr.451) = "any of 100 to 106 or 109 to 114" selects the fast-response operation. The fast-response
operation is available during Vector control, Real sensorless vector control, and PM sensorless vector control.
Control method
Vector control
Real sensorless vector control
PM sensorless vector control
*1 When driving a 3.7 kW no-load motor.
*2 For the FR-A820-03160(55K) or lower, and FR-A840-01800(55K) or lower.
*3 For the FR-A820-03800(75K) or higher, and FR-A840-02160(75K) or higher.
NOTE
• During fast-response operation, the carrier frequency is always 4 kHz. (Refer to
• The inverter overload trip (E.THT) is more likely to occur when fast-response operation is set at the SLD or LD rating.
 Vector control test operation, PM sensorless vector control test
operation (Pr.800 = "9 or 109")
• A test operation for speed control is available without connecting a motor to the inverter.
The speed calculation changes to track the speed command, and such speed changes can be checked on the operation
panel or by outputting it as analog signals to terminal FM/CA or AM.
NOTE
• Since current is not detected and voltage is not output, monitors related to current and voltage such as output current and
output voltage, etc. and output signals do not function.
• For speed calculation, speed is calculated in consideration of Pr.880 Load inertia ratio.
• Since current synchronization operation occurs during the test operation for PM sensorless vector control, the output
frequency becomes the same value as the command frequency.
 I/O signal status during the test operation
• During the test operation, the following signals are disabled.
Input terminal function selection (Pr.178 to Pr.189)
• Brake opening completion (BRI)
• Load pattern selection forward/reverse rotation boost (X17)
• V/F switchover (X18)
• Orientation command (X22)
• Control mode switchover (MC)
• Start-time tuning start external input (X28)
• Torque bias selection 1, Torque bias selection 2 (X42, X43)
• Second brake sequence open completion (BRI2)
• Torque limit selection (X93)
Parameters referred to
Pr.178 to Pr.189 (Input terminal function
Pr.190 to Pr.196 (Output terminal function
 Status of the monitoring during the test operation
○: Enabled
×: Disabled (0 is displayed at any time.)
∆ : A cumulative total before the test operation is displayed.
218
5. PARAMETERS
5.2 Control method
Fast-response operation
Pr.800 (Pr.451) = "100 to 106, or 109 to
114"
130 Hz at maximum
*1
50 Hz at maximum
50 Hz at maximum
selection)page 496
selection)page 450
Speed response
Pr.800 (Pr.451) = "0 to 6, or 9 to 14"
50 Hz at maximum
20 Hz at maximum
10 Hz at maximum
30 Hz at maximum
page
Output terminal function selection (Pr.190 to Pr.196)
• Electronic thermal O/L relay pre-alarm (THP)
• Brake opening request (BOF)
• Second brake opening request (BOF2)
• Orientation complete (ORA)
• Orientation fault (ORM)
• Regenerative status output (Y32)
• In-position (Y36)
• Travel completed (MEND)
• Start time tuning completion (Y39)
• Home position return failure (ZA)
• Position detection level (FP)
• During position command operation (PBSY)
• Home position return completed (ZP)
Normal-response operation
*2
*3
339.)