Mitsubishi Electric FR-A820-00046 (0.4K) Instruction Manual page 543

Pr.
284 Deceleration detection
A106 function selection
Overspeed detection
285
*1
A107
frequency
292 Automatic acceleration/
F500 deceleration
639 Brake opening current
A108 selection
640 Brake operation frequency
A109 selection
641 Second brake sequence
A130 operation selection
642 Second brake opening
A120 frequency
643
Second brake opening current 130%
A121
644 Second brake opening current
A122 detection time
645 Second brake operation time
A123 at start
646 Second brake operation
A124 frequency
647 Second brake operation time
A125 at stop
648 Second deceleration speed
A126 detection selection
650 Second brake opening current
A128 selection
651 Second brake operation
A129 frequency selection
*1 The speed deviation excess detection frequency is used when Vector control compatible option is mounted during Vector control. (Refer to
259 for details.)
 Connection diagram
Sink logic
Pr.184 = 15
Pr.190 = 20
Power
supply
Multi-speed signal
Brake opening completion signal
*1 The input signal terminals differ by the settings of Pr.178 to Pr.189.
*2 The output signal terminals differ by the settings of Pr.190 to Pr.196.
542
5. PARAMETERS
5.14 (A) Application parameters
Initial
Name
value
0
9999
0
0
0
0
3 Hz
0.3 s
0.3 s
6 Hz
0.3 s
0
0
0
MCCB
R/L1
S/L2
T/L3
Start signal STF
RH
RUN(BOF)
AU(BRI) ∗
(BRI)
SD
Setting
range
0 The deceleration detection function disabled.
The protective function activates when the deceleration speed of the
1
deceleration operation is not normal.
The Brake sequence fault (E.MB1) is activated when the difference
0 to 30 Hz between the detection frequency and output frequency is equal to or
greater than the setting value under encoder feedback control.
9999 Overspeed detection disabled.
0 Normal operation
Operation with the shortest acceleration/deceleration time.(Refer to
1, 11
page 365.)
Operation with the optimum acceleration/deceleration time.(Refer to
3
page 365.)
5, 6 Lift operation 1, 2. (Refer to
7 Brake sequence mode 1
8 Brake sequence mode 2
0 Brake opening by output current
1 Brake opening by motor torque
0 Brake closing operation by frequency command
Brake closing operation by the actual motor rotation speed (estimated
1
value)
0 Normal operation when the RT signal is ON
7 Second brake sequence 1 when the RT signal is ON
8 Second brake sequence 2 when the RT signal is ON
9999 First brake sequence is valid when the RT signal is ON
0 to 30 Hz Refer to Pr.278.
0 to 400% Refer to Pr.279.
0 to 2 s Refer to Pr.280.
0 to 5 s Refer to Pr.281.
0 to 30 Hz Refer to Pr.282.
0 to 5 s Refer to Pr.283.
0, 1 Refer to Pr.284.
0, 1 Refer to Pr.639.
0, 1 Refer to Pr.640.
MC
Mechanical
brake
U
V Motor
W
24VDC
∗3 MC
∗2
Brake opening request
signal (BOF)
1
SE
Description
page 368.)
Set the second brake sequence function.
The second brake sequence function is
enabled when the RT signal is ON.
page