Brake Sequence Function - Mitsubishi Electric 800 Series Instruction Manual

14
(A) Application Parameters
Purpose
To stop the motor with a mechanical
brake (operation timing of mechanical
brake)
To stop the motor with a mechanical
brake (vibration control at stop-on-
contact)
To strengthen or weaken the frequency
at a constant cycle
To perform process control, such as for
the pump flow volume and air volume
To control the dance roll for winding/
unwinding
To restart without stopping the motor at
instantaneous power failure
To decelerate the motor to a stop at
power failure
To operate with sequence program
To store the operating status of the
inverter in the RAM in the inverter
14.1

Brake sequence function

Magnetic flux Magnetic flux Magnetic flux Sensorless Sensorless Sensorless
This function outputs operation timing signals of the mechanical brake from the inverter, such as for lift applications.
This function is useful in preventing load slippage at a start due to poor mechanical brake timing and overcurrent alarm in stop
status and enable secure operation.
Pr.
278
Brake opening frequency
A100
279
Brake opening current
A101
280 Brake opening current
A102 detection time
320
14. (A) Application Parameters
14.1 Brake sequence function
Brake sequence function
Stop-on-contact control
Traverse operation
PID control
PID display adjustment
Dancer control
Automatic restart after
instantaneous power failure
/ flying start function for
induction motors
Frequency search accuracy
improvement (V/F control,
offline auto tuning)
Automatic restart after
instantaneous power failure
/ flying start function for PM
motors
Power failure time
deceleration-to-stop
function
PLC function
Trace function
Initial
Name
value
3 Hz
130%
0.3 s
Parameter to set
P.A100 to P.A105,
P.F500, P.A108,
P.A109
P.A200, P.A205,
P.A206
P.A300 to P.A305
P.A601 to P.A604,
P.A607, P.A610 to
P.A615, P.A621 to
P.A625
P.A630 to P.A633
P.A601, P.A602,
P.A610, P.A611,
P.A613 to P.A615,
P.A624, P.A625,
P.F020 to P.F021
P.A700 to P.A703,
P.A710, P.F003
P.A700, P.A711,
P.A712, P.C110,
P.C210
P.A700, P.A702,
P.F003
P.A730
P.A800, P.A801,
P.A804, P.A805,
P.A810 to P.A859
P.A900, P.A902 to
P.A906, P.A910 to
P.A920, P.A930 to
P.A939
Setting
range
Set the frequency value calculated by adding approx. 1.0 Hz to the
0 to 30 Hz
rated slip frequency. This can be set only when Pr.278 ≤ Pr.282.
Set between 50% and 90% because load slippage is more likely to
occur when a start setting is too low.
0% to 400%
The inverter rated current is regarded as 100%, or the rated motor
torque is regarded as 100%. (According to Pr.639 setting)
0 to 2 s Generally set between 0.1 and 0.3 s.
Pr.278 to Pr.283, Pr.292,
320
Pr.639, Pr.640
Pr.270, Pr.275, Pr.276 324
Pr.592 to Pr.597 327
Pr.127 to Pr.134, Pr.553,
Pr.554, Pr.575 to Pr.577, 329
Pr.609, Pr.610, Pr.1015
C42 to C45 342
Pr.44, Pr.45, Pr.128 to
344
Pr.134, Pr.609, Pr.610
Pr.57, Pr.58, Pr.162,
351
Pr.165, Pr.299, Pr.611
Pr.96, Pr.162, Pr.298,
358
Pr.463, Pr.560
Pr.57, Pr.162, Pr.611 356
Pr.261 362
Pr.414, Pr.415, Pr.498,
Pr.675, Pr.1150 to 364
Pr.1199
Pr.1020, Pr.1022 to
366
Pr.1047
Description
Refer to
page