Second/Third Stall Prevention (Pr. 48, Pr. 49, Pr. 114, Pr. 115) - Mitsubishi Electric FR-A520-0.4K -55K Instruction Manual

<Setting>
Refer to the figure below and set the corresponding parameters:
·
When Pr. 43 ≠ 9999, the Pr. 42 setting applies to forward rotation and the Pr. 43 setting applies to reverse
rotation.
Output signal
FU,FU2,FU3
Output Signal
Parameter Number Output Signal
42
FU1
43
50 FU2
116 FU3
Use Pr. 190 to Pr. 195 to assign the terminals used to output the FU2 and FU3 signals.
Note: 1. When the inboard option unit is used to exercise PLG feedback control, use the RUN (running)
signal. (If the FU1, FU2 or FU3 signal is used, the brake may not be opened.)
2. When terminal assignment is changed using Pr. 190 to Pr. 195, the other functions may be
affected. Check the functions of the corresponding terminals before making setting.
Pr. 44, Pr. 45 Î Refer to Pr. 7.
Pr. 46 Î Refer to Pr. 0.
Pr. 47 Î Refer to Pr. 3.
z

Second/third stall prevention (Pr. 48, Pr. 49, Pr. 114, Pr. 115)

Pr. 48 "second stall prevention operation current"
Pr. 49 "second stall prevention operation
frequency"
Pr. 114 "third stall prevention operation
current"
Pr. 115 "third stall prevention operation
frequency"
The stall prevention operation level can be changed within the range from 0Hz to the frequency set in
z
Pr. 49 or Pr. 115.
The stall prevention operation level can be changed by switching the external input signal on-off.
z
Parameter
Factory Setting
Number
48 150%
49 0
114 150%
115 0
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Pr.42
Forward
Pr.50
rotation
Pr.116
Reverse
rotation
OFF ON OFF ON
Setting Range
0 to 200%
0 to 400Hz, 9999
0 to 200%
0 to 400Hz
80
PARAMETERS
Time
Pr.43
Pr.50
Pr.116
OFF
Related parameters
Pr. 22 "stall prevention operation level"
Pr. 23 "stall prevention operation level
at double speed"
Pr. 66 "stall prevention operation level
reduction starting frequency"
Pr. 154 "voltage reduction selection
during stall prevention operation"
Pr. 180 to Pr. 186
(input terminal function selection)
Acceleration
Pr.48
Deceleration/constant speed
Pr.114
Pr.49 Running frequency
Pr.115