SJ700
2
Inverter
Oper
ati
ons
and Monitor
ing
4–33
The following table lists the parameters related to the External Brake Control function.
The diagram below shows the event sequence described in the steps on the previous page.
Code
Function
Data or Range
Description
B120
Brake control
enable
00=Disable
01=Enable
Enables external brake control function within the
inverter
B121
Brake waiting
time for release
0.00 to 5.00 sec.
Sets the time delay after arrival at release
frequency (B125) before the inverter outputs brake
release signal [BRK]
B122
Brake wait time
for acceleration
0.00 to 5.00 sec.
Sets time delay after brake confirmation signal
[BOK] is received until the inverter begins to accel-
erate to the set frequency
B123
Brake wait time
for stopping
0.00 to 5.00 sec.
Sets the time delay after brake confirmation signal
[BOK] turns OFF (after [BRK] turns OFF) until
decelerating the inverter to 0 Hz
B124
Brake wait time
for confirmation
0.00 to 5.00 sec.
Sets the wait time for [BOK] signal after turn ON/
OFF of [BRK] signal. If [BOK] is not received
during the specified time, the inverter will trip with
an external brake error [BER].
B125
Break release
frequency setting
0.00 to 99.99 Hz /
100.0 to 400.0 Hz
Sets the frequency at which the inverter outputs the
brake release signal [BRK] after delay set by B121
B126
Brake release
current setting
0% to 200% of
rated current
Sets the minimum inverter current level above
which the brake release signal [BRK] will be
permitted
B127
Braking
frequency
0 to 400 Hz
(0 to 120 Hz for
model -4000)
Sets the frequency at which the inverter outputs the
braking signal
Output
frequency
Run command
Brake release output [BRK]
Brake OK input [BOK]
B122
B123
B121
B125
B125
B124
Brake release
frequency
Brake wait time to release
Brake wait time for accel
Brake wait time for stopping
Brake wait time
for confirmation
B124
Brake error output [BER]
t
0