Mitsubishi Electronics A800 ユーザーズマニュアル

Soft-PWM control, high carrier frequency PWM control (selectable among V/F control, Advanced magnetic flux vector 
control, Real sensorless vector control), Optimum excitation control, vector control

, and PM sensorless vector control

0.2 to 590 Hz (The upper-limit frequency is 400 Hz under Advanced magnetic flux vector control, Real sensorless vector 
control, vector control

, and PM sensorless vector control.)

0.015 Hz/60 Hz (terminal 2, 4: 0 to 10 V/12 bits)
0.03 Hz/60 Hz (0 to 5 V/11 bits or 0 to 20 mA/approx. 11 bits for terminals 2 and 4, 0 to 

10 V/12 bits for terminal 1)

0.06 Hz/60 Hz (0 to 

5 V/11 bits for terminal 1)

0.01 Hz

Within 

0.2% of the max. output frequency (25°C 10°C)

Within 0.01% of the set output frequency

Base frequency can be set from 0 to 590 Hz. Constant-torque/variable-torque pattern or adjustable 5 points V/F can be 
selected.

SLD rating: 120% 0.3 Hz, LD rating: 150% 0.3 Hz, ND rating: 200%

 0.3 Hz, HD rating: 250%

 0.3 Hz

(under Real sensorless vector control or vector control

Manual torque boost

0 to 3600 s (acceleration and deceleration can be set individually), linear or S-pattern acceleration/deceleration mode, 
backlash countermeasures acceleration/deceleration can be selected.

Operation frequency (0 to 120 Hz), operation time (0 to 10 s), operation voltage (0 to 30%) variable

Activation range of stall prevention operation (SLD rating: 0 to 120%, LD rating: 0 to 150%, ND rating: 0 to 220%, HD 
rating: 0 to 280%). Whether to use the stall prevention or not can be selected. (V/F control, Advanced magnetic flux vector 
control)

Torque limit value can be set (0 to 400% variable). (Real sensorless vector control, vector control

, PM sensorless vector 

control)

Terminals 2 and 4: 0 to 10 V, 0 to 5 V, 4 to 20 mA (0 to 20 mA) are available.
Terminal 1: -10 to +10 V, -5 to 5 V are available.

Input using the setting dial of the operation panel or parameter unit
Four-digit BCD or 16-bit binary (when used with option FR-A8AX)

Forward and reverse rotation or start signal automatic self-holding input (3-wire input) can be selected.

Low-speed operation command, Middle-speed operation command, High-speed operation command, Second function 
selection, Terminal 4 input selection, Jog operation selection, Selection of automatic restart after instantaneous power 
failure, flying start, Output stop, Start self-holding selection, Forward rotation command, Reverse rotation command, 
Inverter reset
The input signal can be changed using Pr.178 to Pr.189 (input terminal function selection).

100 kpps

Maximum and minimum frequency settings, multi-speed operation, acceleration/deceleration pattern, thermal protection, 
DC injection brake, starting frequency, JOG operation, output stop (MRS), stall prevention, regeneration avoidance, 
increased magnetic excitation deceleration, frequency jump, rotation display, automatic restart after instantaneous power 
failure, electronic bypass sequence, remote setting, automatic acceleration/deceleration, intelligent mode, retry function, 
carrier frequency selection, fast-response current limit, forward/reverse rotation prevention, operation mode selection, slip 
compensation, droop control, load torque high-speed frequency control, speed smoothing control, traverse, auto tuning, 
applied motor selection, gain tuning, RS-485 communication, PID control, PID pre-charge function, easy dancer control, 
cooling fan operation selection, stop selection (deceleration stop/coasting), stop-on-contact control, PLC function, life 
diagnosis, maintenance timer, current average monitor, multiple rating, orientation control

, speed control, torque control, 

position control, pre-excitation, torque limit, test run, 24 V power supply input for control circuit, safety stop function, 
vibration control

Inverter running, Up to frequency, Overload warning, Output frequency detection, Fault
The output signal can be changed using Pr.190 to Pr.196 (output terminal function selection).
Fault codes of the inverter can be output (4 bits) from the open collector.

50 kpps

Max. 2.4 kHz: one terminal (output frequency)
The monitored item can be changed using Pr.54 FM/CA terminal function selection.

Max. 20 mADC: one terminal (output current)
The monitored item can be changed using Pr.54 FM/CA terminal function selection.

Max. 10 VDC: one terminal (output voltage)
The monitored item can be changed using Pr.158 AM terminal function selection.

Output frequency, output current, output voltage, frequency setting value
The monitored item can be changed using Pr.52 Operation panel main monitor selection.

Fault record is displayed when a fault occurs. Past 8 fault records and the conditions immediately before the fault (output 
voltage/current/frequency/cumulative energization time/year/month/date/time) are saved.