A.1 For Customers Replacing The Conventional Model With This Inverter - Mitsubishi Electric FR-A820-00046 Instruction Manual

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Appendix
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
Control method
Added functions
Brake transistor
(brake resistor usable)
PID control
Automatic restart after
instantaneous power failure
Number of motor poles
V/F control switching
PTC thermistor input
USB connector
Control circuit terminal block
Terminal response level
Tab. A-1:
FR-A800
FR-A700
V/F control
Advanced magnetic flux vector control
Real sensorless vector control
Vector control (with plug-in option)
PM sensorless vector control (IPM
motor)
Built in for the FR-A720-0.4K to 22K
Built in for the FR-A740-0.4K to 22K
V/F control
400 Hz
Advanced magnetic flux
120 Hz
vector control
Real sensorless vector
120 Hz
control
Vector control
120 Hz
PM sensorless vector
300 Hz
control (MM-CF)
Turn the X14 signal ON to enable PID
control.
Turn the CS signal ON to restart.
The V/F switching signal (X18) is valid when
Pr. 81 = "12 to 20 (2 to 10 poles)".
Input from the terminal AU (the function of
the terminal AU is switched by a switch.)
B connector
Removable terminal block (screw type)
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.
Differences between FR-A700 and FR-A800 (1)
For customers replacing the conventional model with this inverter
FR-A800
V/F control
Advanced magnetic flux vector control
Real sensorless vector control
Vector control (with plug-in option,
control terminal option))
PM sensorless vector control
(IPM motor/SPM motor)
USB host function
Safety stop function
etc.
Built in for the FR-A820-00046(0.4K) to
01250(22K)
Built in for the FR-A840-00023(0.4K) to
03160(55K)
590 Hz
400 Hz
400 Hz
400 Hz
400 Hz
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.
CS signal assignment not required. (Restart
is enabled with the Pr. 57 setting only.)
Pr. 81 = "12 (12 poles)"
X18 is valid regardless of the Pr. 81 setting.
(The Pr. 81 settings "14 to 20" are not
available.)
Input from the terminal 2. (The function of
the
terminal 2 is switched by the Pr. 561
setting.)
Mini B connector
Removable terminal block (spring clamp
type)
A - 1

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