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Second/third Stall Prevention (pr. 48, Pr. 49, Pr. 114, Pr. 115) - Mitsubishi Electric FR-A500 Instruction Manual

Transistorized inverter.
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<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
Parameter Number
Output Signal
42
43
50
116
Use Pr. 190 to Pr. 195 to assign the terminals used to output the FU2 and FU3 signals.
Note: 1. When the plug-in option unit is used to exercise encoder feedback control, use the RUN (running)
signal. (If the FU, FU2 or FU3 signal is used, the brake may not be opened.)
2. Changing the terminal assignment with any of Pr. 190 to Pr. 195 may affect the other functions.
Check the functions of the corresponding terminals before making setting.
Pr. 44, Pr. 45
Refer to Pr. 7.
Pr. 46
Refer to Pr. 0.
Pr. 47
Refer to Pr. 3.

4.2.20 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
Pr. 49 or Pr. 115.
The stall prevention operation level can be changed by switching the external input signal on-off.
Parameter
Factory Setting
Number
48
150%
49
0
114
150%
115
0
Forward
rotation
Output signal
OFF
ON
FU,FU2
, FU3
FU
FU2
FU3
Setting Range
0 to 200%
0 to 400Hz, 9999
0 to 200%
0 to 400Hz
Pr.42
Pr.50
Pr.116
Time
Pr.43
Reverse
Pr.50
rotation
Pr.116
OFF
ON
OFF
Related parameters
Pr. 22 "stall prevention operation level"
Pr. 23 "stall prevention operation level
compensation factor 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.115
89
PARAMETERS
Pr.49
Running frequency
4

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