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

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Appendix For customers replacing the conventional model with this inverter
FR-A800 A - 1
A Appendix
A.1 For customers replacing the conventional model with this
inverter
A.1.1 Replacement of the FR-A700 series
Differences and compatibility with the FR-A700 series
Item FR-A700 FR-A800
Control method
앫
V/F control
앫
Advanced magnetic flux vector control
앫
Real sensorless vector control
앫
Vector control (with plug-in option)
앫
PM sensorless vector control (IPM
motor)
앫
V/F control
앫
Advanced magnetic flux vector control
앫
Real sensorless vector control
앫
Vector control (with plug-in option,
control terminal option))
앫
PM sensorless vector control
(IPM motor/SPM motor)
Added functions
⎯
앫
USB host function
앫
Safety stop function
etc.
Brake transistor
(brake resistor usable)
앫
Built in for the FR-A720-0.4K to 22K
앫
Built in for the FR-A740-0.4K to 22K
앫
Built in for the FR-A820-00046(0.4K) to
01250(22K)
앫
Built in for the FR-A840-00023(0.4K) to
01800(55K)
Max
im
u
m
outpu
t fr
equenc
y
V/F control 400 Hz 590 Hz
Advanced magnetic flux
vector control
120 Hz 400 Hz
Real sensorless vector
control
120 Hz 400 Hz
Vector control 120 Hz 400 Hz
PM sensorless vector
control (MM-CF)
300 Hz 400 Hz
PID control
Turn the X14 signal ON to enable PID
control.
The X14 signal does not need to be
assigned. (PID control is available by the
Pr. 128 setting.)
The PID pre-charge function and dancer
control are added.
Automatic restart after
instantaneous power failure
Turn the CS signal ON to enable restart.
CS signal assignment not required. (Restart
is enabled with the Pr. 57 setting only.)
Number of motor poles
V/F control switching The V/F switching signal (X18) is valid when
Pr. 81 = "12 to 20 (2 to 10 poles)".
Pr. 81 = "12 (12 poles)"
X18 is valid regardless of the Pr. 81 setting.
(The Pr. 81 settings "14 to 20" are not
available.)
PTC thermistor input
Input from the terminal AU (the function of
the terminal AU is switched by a switch.)
Input from the terminal 2. (The function of
the terminal 2 is switched by the Pr. 561
setting.)
USB connector B connector Mini B connector
Control circuit terminal block Removable terminal block (screw type)
Removable terminal block (spring clamp
type)
Terminal response level
The FR-A800's I/O terminals have better response level than the FR-A700's terminals. By
setting Pr. 289 "Inverter output terminal filter" and Pr. 699 "Input terminal filter," the
terminal response level can be compatible with that of FR-A700. Set to approximately 5
to 8 ms and adjust the setting according to the system.
Tab. A-1: Differences between FR-A700 and FR-A800 (1)