8-25
Used to control on, off operation of electronic brake of a load system. It only operates when set
value of control mode(H 40) is 0 (V/F control). Build sequence after checking set control mode.
When brake control is in operation, DC brake and dwell run do not operate when starting up.
z Brake open Sequence
When the electric motor is given instructions to run, the inverter accelerates CW or CCW to the
brake open frequency (I 84, I 85). After reaching the brake open frequency, the current running
through the motor reaches brake open current(I82) and puts out brake open signals to multi-
function output terminals or output relays that are set for brake control.
z Brake close sequence
During run, the electric motor decelerates when stop instruction is given. When output
frequency reaches brake close frequency, it stops decelerating and puts out brake close signal
to the set output terminal. Frequency turns “0” after keeping the frequency for brake close delay
time(I86).
Caution
External Brake control is only used in V/F uniform control, and the brake open
frequency has to be set smaller than close frequency.
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