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Program features 109
State change conditions (
)
:
Brake has been requested to close. The drive logic is requested to ramp down
the speed to a stop (
b3 = 1). The open signal is kept
active (
b0 = 1). The brake logic will remain in this
state until the motor speed has remained below
for the
time defined by
Closing conditions have been met. The open signal is deactivated (
→
0) and the closing torque written into
. The ramp-down request is maintained (
b3
= 1). The brake logic will remain in this state until
is set to
state. If an acknowledgment signal
source has been selected, its state is checked; if the state is not “brake closed”,
the drive generates an
Mechanical brake closing failed
warning. If
fault after
.
The brake is closed (
b0 = 0). The drive is not
necessarily modulating.
Note concerning open-loop (encoderless) applications:
If the brake is kept
closed by a brake close request (either from parameter
or an FSO-xx
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 allowed
*A warning can alternatively be selected by
; if so, the drive will keep modulating
and remain in this state.
1
Brake control disabled (parameter
→
0).
2
, bit 2 = 0 or brake is forced to close by optional FSO-xx safety functions
module.
3
Brake has been requested to open and
has expired.
4
Brake open conditions (such as
) fulfilled and
= 0.
5
has elapsed and brake open acknowledgement (if chosen by
) has been received.
6
Brake has been requested to close.
7
Motor speed has remained below closing speed
for the duration of
8
has elapsed and brake close acknowledgment (if chosen by
) has been received.
9
Brake has been requested to open.
10
Brake control enabled (parameter
→
1).
State name
Description
n
Содержание ACS880-01 Series
Страница 1: ...ABB industrial drives Firmware manual ACS880 ESP control program option N5600 ...
Страница 4: ......
Страница 12: ...12 Table of contents ...
Страница 20: ...20 Introduction to the manual ...
Страница 22: ...22 Using the control panel ...
Страница 28: ...28 Control locations and operating modes ...
Страница 145: ...Application macros 145 Fieldbus control macro This application macro is not supported by the current firmware version ...
Страница 146: ...146 Application macros ...
Страница 502: ...502 Parameters ...
Страница 606: ...606 Fault tracing ...
Страница 662: ...662 Control chain diagrams ...
Страница 664: ...Contact us www abb com drives www abb com drivespartners 3AXD50000041193 Rev A EN EFFECTIVE 2017 06 30 ...