ABB +N5600 Firmware Instructions page 109

State name
BRAKE CLOSING:
BRAKE CLOSING WAIT
BRAKE CLOSING DELAY
BRAKE CLOSED
*A warning can alternatively be selected by
and remain in this state.
State change conditions (
1 Brake control disabled (parameter
2 06.11 Main status
module.
3 Brake has been requested to open and
4 Brake open conditions (such as
5 44.08 Brake open delay
acknowledge selection) has been received.
6 Brake has been requested to close.
7 Motor speed has remained below closing speed
Brake close level
8 44.13 Brake close delay
acknowledge selection) has been received.
9 Brake has been requested to open.
10 Brake control enabled (parameter
Brake has been requested to close. The drive logic is requested to ramp down
the speed to a stop
active (44.01 Brake control status
state until the motor speed has remained below
time defined by 44.15 Brake close level
Closing conditions have been met. The open signal is deactivated
b0 → 0) and the closing torque written into
control status
memory. The ramp-down request is maintained
= 1). The brake logic will remain in this state until
elapsed.
At this point, if 44.07 Brake acknowledge selection
the logic proceeds to
source has been selected, its state is checked; if the state is not "brake closed",
the drive generates an
Brake fault function
closing failed fault after
The brake is closed
necessarily modulating.
Note concerning open-loop (encoderless) applications: If the brake is kept
closed by a brake close request (either from parameter
safety functions module) against a modulating drive for longer than 5 seconds,
the brake is forced to closed state and the drive trips on a fault,
Mechanical brake opening not
44.17 Brake fault
)
n
44.06 Brake control enable
word, bit 2 = 0 or brake is forced to close by optional FSO-xx safety functions
44.16 Brake reopen delay
44.10 Brake open
has elapsed and brake open acknowledgement (if chosen by
delay.
has elapsed and brake close acknowledgment (if chosen by
44.06 Brake control enable
Description
(44.01 Brake control status
b0 = 1). The brake logic will remain in this
delay.
BRAKE CLOSED state. If an acknowledgment signal
A7A1 Mechanical brake closing failed
= Fault, the drive will trip on a
44.18 Brake fault delay.
(44.01 Brake control status
allowed.
function; if so, the drive will keep modulating
→ 0).
torque) fulfilled and
44.14 Brake close level
→ 1).
Program features 109
b3 = 1). The open signal is kept
44.14 Brake close level
(44.01 Brake
44.02 Brake torque
(44.01 Brake control status
44.13 Brake close delay
is set to No acknowledge,
warning. If
71A2 Mechanical brake
b0 = 0). The drive is not
44.12 or an FSO-xx
71A5
has expired.
44.11 Keep brake closed
44.07 Brake
for the duration of
44.07 Brake
for the
b3
has
44.17
= 0.
44.15