Mitsubishi Electric 800 Series Instruction Manual page 459

(A) Application parameters
Pr. Name
642 Second brake opening
A120 frequency
643 Second brake opening
A121 current
644 Second brake opening
A122 current detection time
645 Second brake operation
A123 time at start
646 Second brake operation
A124 frequency
647 Second brake operation
A125 time at stop
648 Second deceleration
A126 detection function selection
650 Second brake opening
A128 current selection
651 Second brake operation
A129 frequency selection

The speed deviation excess detection frequency when vector control compatible option is mounted during vector control. (For the details, refer
to page 179.)
Connection diagram
Sink logic
Pr.184 = 15
Pr.190 = 20
Power
supply
Multi-speed signal
Brake opening completion signal
NOTE
• The automatic restart after instantaneous power failure function and orientation function do not operate when brake
sequence is selected.
• To use this function, set the acceleration/deceleration time to 1 s or higher.
• Changing the terminal assignment using Pr.178 to Pr.189 (Input terminal function selection) and Pr.190 to Pr.196
(Output terminal function selection) may affect the other functions. Set parameters after confirming the function of each
terminal.
458
PARAMETERS
Initial
value
3 Hz
130%
0.3 s
0.3 s
6 Hz
0.3 s
0
0
0
MC
MCCB
R/L1
S/L2
T/L3
Start signal STF
RH
RUN(BOF)
AU(BRI) ∗
(BRI)
SD
Setting
range
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.
Mechanical
brake
U
V Motor
W
24VDC
∗3 MC
∗2
Brake opening request
signal (BOF)
1
SE
Description
Set the second brake sequence
function.
The second brake sequence function
is enabled when the RT signal is ON.

The input signal
terminals differ by the
settings of Pr.178 to
Pr.189.

The output signal
terminals differ by the
settings of Pr.190 to
Pr.196.