Appendix B – Drive-to-drive link
320
The following diagram shows the wiring of the drive-to-drive link.
Datasets
Drive-to-drive communication uses DDCS (Distributed Drives Communication
System) messages and dataset tables for data transfer. Each drive has a dataset
table of 256 datasets, numbered 0…255. Each dataset contains 48 data bits.
By default, datasets 0…15 and 200…255 are reserved for the drive firmware;
datasets 16…199 are available for the user application program.
The contents of the standard communication datasets (16-bit control word and two
32-bit references) can be configured freely with pointer parameters and/or
application programming with the DriveSPC tool. Depending on the drive control
mode, the followers can be configured to use the drive-to-drive commands and
references with the following parameters:
The communication status of the followers can be supervised by a periodic
supervision message from the master to the individual followers (see parameters
Drive-to-drive function blocks can be used in the DriveSPC tool to enable additional
communication methods (such as follower-to-follower messaging) and to modify the
use of datasets between the drives. See the function blocks under
(page
).
Control data
Parameter
Setting for drive-to-drive
communication
Start/Stop commands
Speed reference
or
Torque reference
or
X5:D2D
...
1
T
J3
Termination
ON
JCU
Drive 1
B
2
A
3
BG
N
D
X5:D2D
1
J3
Termination
OFF
JCU
Drive 2
B
2
A
3
BG
N
D
T
X5:D2D
1
T
J3
Termination
ON
JCU
Drive n
B
2
A
3
BG
N
D
Summary of Contents for ACSM1 Series
Page 1: ...ACSM1 Firmware Manual ACSM1 Speed and Torque Control Program...
Page 2: ......
Page 4: ......
Page 12: ...Table of contents 12...
Page 49: ...Drive control and features 49...
Page 282: ...Standard function blocks 282...
Page 306: ...Application program template 306...
Page 312: ...Control chain block diagrams 312...
Page 331: ...331...
Page 332: ...332...
Page 333: ......