ABB ACS800 Firmware Manual page 199

Index Name/Selection
42.11 MOTOR SLIP SPD
0 ... 100 rpm
42.12 SLIP FAULT DELAY
0 ... 60 s
42.13 BRK LONG FLT DLY
0 ... 60 s
42.14 SAFETY CLOSE
CMD
DISABLE
ENABLE
42.15 BRAKE ACKN PTR
-255.255.31 ...
+255.255.31 / C.-
32768 ... C.32767
42.16 BRK REOPEN DLY
0 ... 5 s
Description
Defines the motor slip speed allowed during brake opening. If the motor speed
exceeds this level during brake opening, a brake slip fault will be generated.
This function performs a mechanical system check of the brake during the
Torque proving sequence, ensuring that the brake does not slip during the
Torque proving sequence with the brake closed. Not applicable in Scalar
mode.
Speed (an absolute value)
Defines the motor slip time delay during brake opening. If the motor speed
exceeds the slip speed during brake opening, BRAKE SLIP FAULT will be
generated. Not applicable in Scalar mode.
Time
Defines the time delay for generating a brake fault after the brake close delay
has elapsed. This parameter is applicable only when encoder feedback is used
and brake acknowledge DI is used. During the brake close delay, the drive
checks whether the brake has physically closed by checking the status of the
brake acknowledge DI. If the DI is still active after the brake close delay, the
drive keeps the torque ON to the motor for the time defined. If the brake long
fault delay time has elapsed and the DI is still active, the drive trips on a brake
fault. A status bit (03.32 bit 9) is available when the drive is operating at the
brake long fault delay period along with a CDP message 'BRK LONG TIME',
which can be used for safety interlock or generating alarms.
Time
Activates the Safety close function. This function monitors the actual speed of
the motor when the drive is running without the encoder. When the actual
speed is below 1% of the max speed for more than 2 seconds with the Start
command active, the drive trips on SAFETYCLS FLT.
Function is inactive
Function is active
Defines the source or constant for value PAR 42.15 of parameter
Parameter index or a constant value. See parameter
the difference.
Defines the brake reopen delay time after a Stop command is issued. The
brake is opened only after this time period after brake closing sequence is over
with a Stop command. This function helps in improper brake opening and
closing sequence due to immediate Start -> Stop -> Start sequence.
Time
42.02
10.04 for information on
Actual signals and parameters
199
FbEq
0 ...1000
0 ...6000
0 ...6000
1
2
-
0 ...500