Mitsubishi Electric FR-A800, Instruction Manual

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Parameters (A) Application parameters
FR-A800 5 - 495
Connection diagram
Load torque high speed frequency control setting
●
Set "2, 3 or 13" in Pr. 270 "Stop-on contact/load torque high-speed frequency control selection".
●
When the load torque high-speed frequency selection (X19) signal ON, the inverter automatically
adjusts the maximum frequency in the range between the Pr. 4 "Multi-speed setting (high speed)"
and Pr. 5 "Multi-speed setting (middle speed)" in accordance with the average current in the
current averaging range. The current averaging range is from the 1/2 the Pr. 5 to the full Pr. 5 setting
(in the current averaging range).
●
To use the X19 signal, set "19" in any of Pr. 178 to Pr. 189 (input terminal function selection) to
assign the function to an input terminal.
●
This is valid in External operation mode and Network operation mode.
●
The control can be activated at every start.
I002679E
Fig. 5-236: Connection example with mechanical brake
R/L1
S/L2
T/L3
MC
STF
CS(X19) ∗
SD
MCCB
U
V
W
* The applied terminals differ by the settings of Pr. 180 to Pr. 189 (input terminal function selection).
Power supply
Start signal
Load torque high-speed frequency
Motor
Mechanical
brake
Sink logic
Pr. 186 = 19