High-Speed Frequency Control (Pr. 271 To Pr. 274) - Mitsubishi Electric FR-A520-0.4K -55K Instruction Manual

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High-speed frequency control (Pr. 271 to Pr. 274)

Pr. 271 "high-speed setting maximum current"
Pr. 272 "mid-speed setting minimum current"
Pr. 273 "current averaging range"
Pr. 274 "current averaging filter constant"
Used to set the current, averaging range, etc. required when "2" or "3" is set in Pr. 270 to select load torque
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high-speed frequency control.
Parameter
Factory Setting
Number
271 50%
272 100%
273 9999
274 16
<Wiring example>
·
Sink logic
·
Pr. 186 = 19
Power supply
200 to 230VAC or 380 to 480VAC
Start signal
Load torque high-speed
frequency function selection
Note: The input signal terminal used depends on the Pr. 180 to Pr. 186 settings.
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<Without high-speed frequency control>
Setting Range
0 to 200%
0 to 200%
0 to 400Hz, 9999
1 to 4000
Whether there is a load or
not, the lift is moved vertically
at the same speed.
NFB
R 〈L 〉
1
S 〈L 〉
2
T 〈L 〉
3
STF
CS (Note)
SD
157
PARAMETERS
Related parameters
Pr. 4 "multi-seed setting (high speed)"
Pr. 5 "multi-seed setting (middle
speed)"
Pr. 6 "multi-seed setting (low speed)"
Pr. 59 "remote setting function
selection"
Pr. 180 to Pr. 186
(input terminal function selection)
<With high-speed frequency control>
The lift with a light load or without
a load is moved faster than the
lift with a load.
(The output frequency is increased.)
MC
Mechanical
brake
U
V
Motor
W
Light
Faster