Program features
101
Shaft synchro (Only in EXT2 Control)
The Shaft synchro function synchronises the Master and Follower drives when the
drives are in the Master/Follower mode (see section
Master/Follower use of several
). However, the synchronisation is in use
only when the drives are set to the speed mode. The function transfers the Master
drive position to the Follower and uses the difference between the positions as the
speed correction factor in the speed control loop of the Follower drive.
Note:
The function can only be used if the drive is controlled from location EXT2.
The following figure gives an example of two motors in the Shaft synchro mode.
Follower
‚
+
0
2
0
3
4
5
PID
=
~
Inverter
SPEED
CONTROLLER
TORQUE REFER-
ENCE SELECTOR
TORQUE REFER-
ENCE CONTROL
INVERTER
CONTROL
2.09
TORQUE REF 2
2.10
TORQUE REF 3
SPEED
TORQUE
MIN
MAX
ADD
2.02
ACTUAL SPEED
1
SYNCHRO
CONTROL
02.21 POS ACT PPU
MASTER POSITION
+
0
2
0
3
4
5
PID
=
~
Inverter
SPEED
CONTROLLER
TORQUE REFER-
ENCE SELECTOR
TORQUE REFER-
ENCE CONTROL
INVERTER
CONTROL
2.09
TORQUE REF 2
2.10
TORQUE REF 3
SPEED
TORQUE
MIN
MAX
ADD
2.02
SPEED REF 3
ACTUAL SPEED
1
TO FOLLOWER
TO MASTER
FROM
DRIVE
MASTER
CH2
COMM
MASTER
DRIVE
START/STOP
DIRECTION
COMMAND
SPEED REF
START/STOP
DIRECTION
COMMAND
Master
SPD REF
SHAFT
SCALE
* When Synchro function is not used,
external pointer parameter can be used to
write speed correction to this signal 3.35.
SPEED CORRECTION FACTOR*
97.16 SPD CORR PTR
+.000.000.00
78.03
3.35
10.02, 11.06
23.xx
60.xx
M1
M2
M2
78.xx
INCREMENTAL
ENCODER
2.23
SYNC POS ERROR
Содержание ACS 800 Series
Страница 1: ...ACS800 Firmware Manual Crane Control Program N697 ...
Страница 4: ......
Страница 26: ...Start up and control through the I O interface 26 ...
Страница 36: ...Quick start up guide 36 ...
Страница 52: ...Control panel 52 ...
Страница 105: ...Program features 105 Figure Control diagram for Shaft synchronisation executed in 20 ms ...
Страница 126: ...Program features 126 The figures below show speed limits according to different load conditions ...
Страница 128: ...Program features 128 ...
Страница 150: ...Application macros control location EXT1 EXT2 150 ...
Страница 228: ...Actual signals and parameters 228 ...
Страница 299: ...Adaptive Programming examples for crane control 299 ...
Страница 305: ...Adaptive Programming examples for crane control 305 ...
Страница 312: ...Adaptive Programming examples for crane control 312 The following figures show the previous example enlarged ...
Страница 314: ...Adaptive Programming examples for crane control 314 The following figures show the previous example enlarged ...
Страница 318: ...Analogue Extension Module 318 ...
Страница 332: ...Additional data actual signals and parameters 332 ...
Страница 333: ...DriveWindow 333 DriveWindow DriveWindow connected to the ACS800 RMIO RDCO board and channel CH3 ...
Страница 334: ...DriveWindow 334 ...
Страница 335: ...Control block diagrams 335 Control block diagrams ...
Страница 336: ...Control block diagrams 336 ...
Страница 337: ...Control block diagrams 337 ...
Страница 338: ...Control block diagrams 338 ...
Страница 340: ...www abb com drives www abb com drivespartners Contact us 3AFE68775230 Rev E EN 2012 09 25 ...