
66 Program features
Brake state diagram
State descriptions
State name
Description
BRAKE DISABLED
Brake control is disabled (parameter
= 0, and
b4 = 0). Brake open command
signal is deactivated (
BRAKE OPENING
Brake has been requested to open. (
= 1). Brake open command signal has been activated (
b0 =1). The load is held in place by the speed
elapses.
BRAKE OPEN
The brake is open (
b0 = 1). Hold
request is removed (
b2 = 0), and the
drive is allowed to follow the reference.
BRAKE CLOSING
Closing conditions have been met. The open signal is deactivated
→
0). The ramp-down request is
maintained (
b3 = 1). The brake logic
will remain in this state until
has elapsed.
At this point, the logic proceeds to
BRAKE CLOSED
state.
BRAKE CLOSED
The brake is closed (
b0 = 0). The drive
is not necessarily modulating.
BRAKE DISABLED
BRAKE OPENING
BRAKE CLOSED
BRAKE OPEN
BRAKE CLOSING
(from any state)
1
(from any state)
2
3
5
6
7
3
4
5
Summary of Contents for ACS280
Page 1: ... ABB MACHINERY DRIVES ACS280 coldplate drives Firmware manual ...
Page 4: ......
Page 10: ...10 ...
Page 16: ...16 Control panel ...
Page 20: ...20 Start up ID run and use ...
Page 24: ...24 Default control connection ...
Page 88: ...88 Program features ...
Page 298: ...298 Parameters ...