135
Motor brake and stop operation
4.10.5 Brake sequence function (Pr. 278 to Pr. 283, Pr. 292)
The above parameters can be set when
Pr. 160 User group read selection
= "0".
<
Connection diagram
>
This function is used to output from the inverter the mechanical brake operation timing signal in vertical lift and other
applications.
This function prevents the load from dropping with gravity at a start due to the operation timing error of the mechanical
brake or an overcurrent alarm from occurring at a stop, ensuring secure operation.
Parameter
Number
Name
Initial
Value
Setting
Range
Description
278
Brake opening
frequency
3Hz
0 to 30Hz
Set to the rated slip frequency of the motor + about 1.0Hz.
This parameter may be set only if
Pr. 278
≤
Pr. 282
.
279
Brake opening current
130%
0 to 200%
Generally, set this parameter to about 50 to 90%. If the setting
is too low, the load is liable to drop due to gravity at start.
Suppose that the rated inverter current is 100%.
280
Brake opening current
detection time
0.3s
0 to 2s
Generally, set this parameter to about 0.1 to 0.3s.
281
Brake operation time at
start
0.3s
0 to 5s
When
Pr. 292
= "7", set the mechanical delay time until the
brake is loosened.
Set the mechanical delay time until the brake is lo
about 0.1 to 0.2s when
Pr. 292
= "8".
282
Brake operation
frequency
6Hz
0 to 30Hz
Set the frequency to activate the mechanical brake by turning
OFF the brake opening request signal (BOF). Generally, set
this parameter to the
Pr. 278
s 3 to 4Hz.
This parameter may be set only if
Pr. 278
≤
Pr. 282
.
283
Brake operation time at
stop
0.3s
0 to 5s
Set the mechanical delay time until the brake is 0.1s
when
Pr. 292
= 7.
Sets the mechanical delay time until the brake is 0.2
to 0.3s when
Pr. 292
= 8.
292
Automatic acceleration/
deceleration
0
0
Normal operation mode
1, 11
Shortest acceleration/deceleration mode
7
Brake sequence mode 1
8
Brake sequence mode 2
NOTE
When brake sequence function is selected, automatic restart after instantaneous power failure is invalid.
When using this function, set the acceleration time to 1s or longer.
Changing the terminal function using any of
Pr. 178 to Pr. 184
and
Pr. 190 to Pr. 192
may affect the other functions.
Set parameters after confirming the function of each terminal.
AD MFVC
AD MFVC
AD MFVC
GP MFVC
GP MFVC
GP MFVC
Mechanical
brake
R/L1
S/L2
T/L3
Motor
MC
STF
RH
RL(BRI)
*1
SD
MC
24VDC
Brake opening
request signal
(BOF)
Start signal
Multi-speed signal
Brake opening
completion signal (BRI)
MCCB
Power supply
U
V
W
RUN (BOF)
SE
*2
*3
Sink logic
Pr. 184
= 15
Pr. 190
= 20
∗1
The input signal terminal used differs according to the
Pr. 178 to Pr. 184
settings.
∗2
The output signal terminal used differs according to the
Pr. 190 to Pr. 192
settings.
∗3
The current should be within the permissible current of
transistor in the inverter. (24V 0.1ADC)
Summary of Contents for FR-E710W-0.1K
Page 49: ...40 MEMO ...
Page 65: ...56 MEMO ...
Page 288: ...288 MEMO ...
Page 310: ...310 MEMO ...
Page 334: ...334 MEMO ...
Page 348: ...4 4 BCN C22005 679 MEMO BCN C22005 679 fm 4 ページ 2014年11月7日 金曜日 午前11時58分 ...