ABB ACS580 Firmware Manual page 112

108 Program features
Timing diagram
The simplified timing diagram below illustrates the operation of the brake control
function. Refer to the state diagram above.
Start command
(06.16 b5)
Modulating (06.16 b6)
Ready ref (06.11 b2)
Speed reference
Brake control signal
(44.01 b0)
Hold stopped request
(44.01 b2)
Ramp to stopped
request (44.01 b3)
State
1
t Motor magnetization delay
md
t Brake open delay (parameter
od
n Brake close speed (parameter
cs
t Brake close delay (parameter
cd
BCW BRAKE CLOSING WAIT
BCD BRAKE CLOSING DELAY
t
md
t
od
BRAKE
BRAKE OPENING
CLOSED
2 3
44.08 Brake open
44.14 Brake close
44.13 Brake close
n
cs
BRAKE OPEN
4 5
delay)
level)
delay)
BCW BCD BRAKE
CLOSED
BRAKE CLOSING
6 7 8