Mitsubishi Electric FR-F740 EC Instruction Manual page 175

Parameter
Parameter
Func-
Name
tion
252
— Refer to Pr. 73
253
Life alarm status
255
display
Inrush current limit
256
circuit life display
Control circuit
257
capacitor life display
Main circuit capacitor
258
life display
Main circuit capacitor
259
life measuring
— 260 Refer to Pr. 72
Power failure stop
261
selection
Subtracted frequency
262
at deceleration start
Subtraction starting
263
frequency
Power-failure
264
deceleration time 1
Power-failure
265
deceleration time 2
Power failure
266 deceleration time
switchover frequency
Tab. 6-1: Parameter overview (25)
FR-F700 EC
Incre- Initial Setting
ments Value Range
1 0 (0–15)
1% 100% (0–100%)
1% 100% (0–100%)
1% 100% (0–100%)
1 0 0/1
0
1
1 0
2
21
22
0.01Hz 3Hz 0–20Hz
0–400Hz
0.01Hz 50Hz
9999
0.1/ 0–3600/
5s
0.01s 360s
0–3600/
0.1/
360s
9999
0.01s
9999
0.01Hz 50Hz 0–400Hz
Description
Display whether the control circuit
capacitor, main circuit capacitor,
cooling fan, and each parts of the
inrush current limit circuit has
reached the life alarm output level
or not.
Display the deterioration degree of
the inrush current limit circuit.
(Reading only)
Display the deterioration degree of
the control circuit capacitor.
(Reading only)
Display the deterioration degree of
the main circuit capacitor.
(Reading only)
The value measured by Pr. 259 is
displayed.
Start measuring the main circuit
capacitor life. Switch the power
supply on again and check the
Pr. 259 setting. Measurement is
complete if the setting is "3". Set
the deterioration degree in Pr. 258.
Operation at At power restora-
undervoltage/ tion during power
power failure failure deceleration
Coasts to a stop
Decelerates to a stop
Accelerates again
Decelerates to Decelerates to a
a stop stop
Accelerates again
Normally operation can be per-
formed with the initial value
unchanged. But adjust the fre-
quency according to the magni-
tude of the load specifications
(moment of inertia, torque).
When output frequency ≥ Pr. 263
Decelerate from the speed
obtained from output frequency
minus Pr. 262.
When output frequency < Pr. 263
Decelerate from output frequency
Decelerate from the speed
obtained from output frequency
minus Pr. 262.
Set a deceleration slope down to
the frequency set in Pr. 266.
Set a deceleration slope below the
frequency set in Pr. 266.
Same slope as in Pr. 264
Set the frequency at which the
deceleration slope is switched
from the Pr. 264 setting to the
Pr. 265 setting.
Parameter overview
All
Para- Para-
para-
meter meter
meter
copy clear
Refer
clear
to
page
✔: enabled
—: disabled
— — —
— — —
— — —
6-390
— — —
✔ ✔ ✔
✔ ✔ ✔
✔ ✔ ✔
6-162
✔ ✔ ✔
✔ ✔ ✔
✔ ✔ ✔
✔ ✔ ✔
✔ ✔ ✔
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