Brake Control - ABB ACS800 Firmware Manual

196
Index Name/Selection
35.06 MOT 2 TEMP FLT L
-10 ... 5000 ohm/°C
(PTC/Pt100)
35.07 MOT MOD
COMPENSAT
NO
YES

42 BRAKE CONTROL

42.01 BRAKE CTRL
OFF
ON
42.02 BRAKE
ACKNOWLEDGE
OFF
DI11
DI12
PAR 42.15
42.03 BRAKE OPEN DELAY Defines the brake open delay (= the delay between the internal Open brake
0.0 ... 5.0 s
42.04 BRAKE CLOSE
DELAY
0.0 ... 60.0 s
42.05 ABS BRAKE CLS
SPD
0 ... 1000 rpm
Actual signals and parameters
Description
Defines the fault trip limit for the motor 2 temperature measurement function.
The fault indication is given when the limit is exceeded.
See 35.03.
Selects whether measured motor 1 temperature is used in the motor model
compensation.
The function is inactive.
The temperature is used in the motor model compensation.
Note: Selection is possible only when Pt 100 sensor(s) are used.
Control of a mechanical brake. The function operates on a 20 ms time level.
For the function description, see section
page 112.
Activates the brake control function.
Inactive
Active
Activates the external brake on/off supervision and selects the source for the
signal. The use of the external on/off supervision signal is optional.
Inactive
Active. Digital input DI11 is the signal source.
DI11 = 1: Brake is open.
DI11 = 0: Brake is closed.
Digital input DI11 is the signal source. See selection DI11
Signal source selected using Par.
DI11.
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 (parameters
Simultaneously with the counter start, the brake function energises the relay
output controlling the brake and the brake starts opening.
Note: If DI is used for brake acknowledge, the speed control is released on the
DI activation and does not wait for the complete time delay.
Delay time. Set the delay time to the same value as the mechanical opening
delay of the brake specified by the brake manufacturer.
Defines the brake close delay. The delay counter starts when the motor actual
speed has fallen below the set level (parameter 42.05) 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.
Note: See also Par. 78.13
Delay time. 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.
Defines the brake close speed. See parameter 42.04.
Note: See also Par. 78.13
Speed (an absolute value)
Control of a mechanical brake
42.15 BRAKE ACKN PTR. See selection
42.07
POS HYSTERISIS.
POS HYSTERISIS.
FbEq
-10 ... 5000
1
2
on
1
2
1
2
3
4
and 42.08).
0 ... 500
0 ... 6000
0 ...10000