ABB ACS560 - Page 61

Program features 61
The brake control logic, in various states, will request the drive control logic to hold
the motor or ramp down the speed. These requests are visible in parameter 44.01
Brake control status.
Settings
Parameter group 44 Mechanical brake control (page 314).
Brake state diagram
State descriptions
State name Description
BRAKE DISABLED Brake control is disabled (parameter 44.06 Brake control enable = 0, and 44.01
Brake control status b4 = 0). The open signal is active (44.01 Brake control
status b0 = 1).
BRAKE OPENING: Brake has been requested to open. (44.01 Brake control status b2 = 1). Open
signal has been activated (44.01 Brake control status b0 is set). The load is
held in place by the speed control of the drive until 44.08 Brake open delay
elapses.
BRAKE OPEN The brake is open (44.01 Brake control status b0 = 1). Hold request is removed
(44.01 Brake control status b2
=
0), and the drive is allowed to follow the
reference.
BRAKE CLOSING:
BRAKE CLOSING WAIT Brake has been requested to close. The drive logic is requested to ramp down
the speed to a stop (44.01 Brake control status b3 = 1). The open signal is kept
active (44.01 Brake control status b0 = 1). The brake logic will remain in this
state until the motor speed is below 44.14 Brake close level.
BRAKE CLOSING
DELAY
BRAKE CLOSING WAIT
BRAKE DISABLED BRAKE OPENINGBRAKE CLOSED
BRAKE OPENBRAKE CLOSING
(from any state)
1
(from any state)
2
3
4
6
5
5
6
7
8
3
9