Mitsubishi Electric FR-A720-0.4K Instruction Manual page 127

Parameter List
Parameter
Life alarm status
255
display
Inrush current limit
256
circuit life display
Control circuit
257
capacitor life
display
Main circuit
258
capacitor life
display
Main circuit
259
capacitor life
measuring
Power failure stop
261
selection
Subtracted
262
frequency at
deceleration start
Subtraction starting
263
frequency
Power-failure
264
deceleration time 1
Power-failure
265
deceleration time 2
Power failure
deceleration time
266
switchover
frequency
UV avoidance
294
voltage gain
120
Incre- Initial
Name
ments Value
1 0
1% 100%
1% 100%
1% 100%
1 0
1 0
0.01Hz 3Hz
0.01Hz 60Hz
0.1/
5s
0.01s
0.1/
9999
0.01s
0.01Hz 60Hz
0.1% 100%
Range Description
Display whether the control circuit
capacitor, main circuit capacitor, cooling
(0 to 15) fan, and each parts of the inrush current
limit circuit has reached the life alarm
output level or not. Reading only
Display the deterioration degree of the
(0 to 100%)
inrush current limit circuit. Reading only
Display the deterioration degree of the
(0 to 100%)
control circuit capacitor. Reading only
Display the deterioration degree of the
(0 to 100%) main circuit capacitor. Reading only
The value measured by Pr. 259 is displayed.
Setting "1" and turning the power supply off
starts the measurement of the main circuit
capacitor life.
0, 1
When the Pr.259 value is "3" after powering
on again, the measuring is completed.
Read the deterioration degree in Pr.258.
Coasting to stop
0 When undervoltage or power failure
occurs, the inverter output is shut off.
Without undervoltage
1
avoidance
With undervoltage
11
avoidance
Without undervoltage
2
avoidance
With undervoltage
12
avoidance
Normally operation can be performed with
the initial value unchanged. But adjust the
0 to 20Hz frequency according to the magnitude of
the load specifications (moment of inertia,
torque).
When output frequency ≥ Pr. 263
Decelerate from the speed obtained
0 to 120Hz from output frequency minus Pr. 262.
When output frequency < Pr. 263
Decelerate from output frequency
Decelerate from the speed obtained from
9999
output frequency minus Pr. 262.
0 to 3600/ Set a deceleration slope down to the
360s frequency set in Pr. 266.
0 to 3600/ Set a deceleration slope below the
360s frequency set in Pr. 266.
9999 Same slope as in Pr. 264
Set the frequency at which the
0 to 400Hz deceleration slope is switched from the Pr.
264 setting to the Pr. 265 setting.
Adjust response level at undervoltage
avoidance operation. A larger setting will
0 to 200%
improve responsiveness to the bus voltage
change.
: enabled
× : disabled
× ×
× ×
× ×
× ×
When undervoltage
or a power failure
occurs, the inverter
can be decelerated
to a stop.
When undervoltage
or a power failure
occurs, the inverter
can be decelerated
to a stop.
If power is restored
during a power
failure, the inverter
accelerates again.
×
×
×
×