170 Parameters
No ack
Brake control enabled without supervision.
2
42.02
Brake acknowl
Selects the source for the external brake on/off supervision
activation (when parameter
is set to
). The use of the external on/off supervision signal is
optional.
1 = The brake is open
0 = The brake is closed
Brake supervision is usually controlled with a digital input. It
can also be controlled with an external control system, e.g.
fieldbus.
When a brake control error is detected, the drive reacts as
defined by parameter
.
Note:
This parameter cannot be changed while the drive is
running.
DI4
Digital input DI4 (as indicated by
, bit 3).
1073938945
DI5
Digital input DI5 (as indicated by
, bit 4).
1074004481
DI6
Digital input DI6 (as indicated by
, bit 5).
1074070017
DIO4
Digital input/output DIO4 (as indicated by
,
bit 3).
1073938947
DIO5
Digital input/output DIO5 (as indicated by
,
bit 4).
1074004483
DIO6
Digital input/output DIO6 (as indicated by
,
bit 5).
1074070019
Const
). -
Pointer
42.03
Open delay
Defines the brake open delay (= the delay between the
internal open brake command and the release of the motor
speed control). The delay counter starts when the drive has
magnetised the motor and risen the motor torque to the level
required at the brake release (parameter
). Simultaneously with the counter start, the brake
function energises the relay output controlling the brake and
the brake starts opening.
Set the delay the same as the mechanical opening delay of
the brake specified by the brake manufacturer.
0.00 … 5.00 s
Brake open delay.
100 = 1 s
42.04
Close delay
Defines the brake close delay. The delay counter starts when
the motor actual speed has fallen below the set level
(parameter
) after the drive has received
the stop command. Simultaneously with the counter start, the
brake control function de-energises the relay output
controlling the brake and the brake starts closing. During the
delay, the brake function keeps the motor live preventing the
motor speed from falling below zero.
Set the delay time to the same value as the mechanical
make-up time of the brake (= operating delay when closing)
specified by the brake manufacturer.
0.00 … 60.00 s
Brake close delay.
100 = 1 s
42.05
Close speed
Defines the brake close speed (as an absolute value). See
parameter
0.0 … 1000.0 rpm
Brake close speed.
10 = 1 rpm
No.
Name/Value
Description
FbEq
Summary of Contents for ACS850 series
Page 1: ...ACS850 Firmware Manual ACS850 Standard Control Program...
Page 2: ......
Page 4: ......
Page 24: ...24 Start up...
Page 28: ...28 Control locations and operating modes...
Page 252: ...252 Fieldbus control...