ABB +N5600 Firmware Instructions page 419

No. Name/Value
74.21 Restart delay time
0.0...30000.0 min
74.30 Speed observer
enable
Not selected
Selected
DI1
DI2
DI3
DI4
DI5
DI6
DIO1
DIO2
ESP CW bit 2
Other [bit]
74.31 Restart speed limit
low
-600.00...0.00 Hz
74.32 Restart speed limit
high
0.00...600.00 Hz
74.33 Observer speed
check time
0.0...32000.0 s
74.39 Measurement delay
3.0...32000.0 s
Description
Defines restart delay time.
The timer gets active immediately after stop command is
enabled.
Restart delay time.
Defines the source for Backspin speed observer function
enable signal.
For further information on Backspin speed observer function,
see section Backspin speed observer
The function detects whether the motor is spinning and
prevents drive start command until passive motor speed
reduces down to speed region defined as safe to restart by
the user.
It is always recommended to enable restart delay and run for
at least several minutes alongside with the backspin speed
observer function.
Backspin speed observer function is disabled.
Backspin speed observer function is enabled.
Digital input DI1 (10.02 DI delayed
Digital input DI2 (10.02 DI delayed
Digital input DI3 (10.02 DI delayed
Digital input DI4 (10.02 DI delayed
Digital input DI5 (10.02 DI delayed
Digital input DI6 (10.02 DI delayed
Digital input/output DIO1
Digital input/output DIO2
Parameter 74.01 ESP control
enable/disable status of the function.
Source selection (see Terms and abbreviations
Defines top negative speed at which fly-start operation is
permitted.
Together with parameter
to-restart speed region is formed.
Restart speed limit low.
Defines top positive speed at which fly-start operation is
permitted.
Together with parameter
to-restart speed region is formed.
Restart speed limit high.
Defines the time period required for the motor speed
measured by the Backspin speed observer function to stay
within the safe-to-restart speed region before user-start
command is permitted.
Observer speed check time.
Defines the time period required for the Backspin speed
observer function to acquire the estimated motor actual
speed.
The default value should be capable in most of the cases.
Measurement delay.
(page 42).
status, bit 0).
status, bit 1).
status, bit 2).
status, bit 3).
status, bit 4).
status, bit 5).
(11.02 DIO delayed status, bit 0).
(11.02 DIO delayed status, bit 1).
word, bit-2 status controls
on page 148).
74.32 Restart speed limit
74.31 Restart speed limit
Parameters 419
Def/FbEq16
0.0
10 = 1min
ESP CW bit 2
0
1
2
3
4
5
6
7
8
9
10
-7.00
high, safe-
10 = 1Hz
7.00
low, safe-
10 = 1Hz
30
1 = 1s
5.0
1 = 1s