High-Speed Frequency Control (Pr. 271 To Pr. 274) - Mitsubishi Electric FR-A500 Instruction Manual

4.2.61 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
high-speed frequency control.
Parameter Factory
Number Setting
271 50%
272 100%
273 9999
274 16
(Note) When load torque high speed
frequency control is selected,
automatic restart after instantaneous
power failure function is invalid.
<Wiring example>
• Sink logic
• Pr. 186 = 19
Note: The input signal terminal used depends on the Pr. 180 to Pr. 186 settings.
Setting Range
0 to 200%
0 to 200%
0 to 400Hz, 9999
1 to 4000
NFB
Power supply
Start signal
Load torque high-speed
frequency function selection
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)
Pr. 270 "stop-on-contact/load torque
<Without high-speed frequency control>
Whether there is a load or
not, the lift is moved vertically
at the same speed.
MC
R 〈 L 〉
U
1
S 〈 L 〉 V
2
T 〈 L 〉 W
3
STF
CS (Note)
SD
170
PARAMETERS
Related parameters
high-speed control 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.)
Mechanical
brake
Motor
Light
Faster