ABB ACSM1 - Datasets

Appendix B – Drive-to-drive link
432
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 two firmware communication datasets can be configured freely
with pointer parameters and/or application programming with the DriveSPC tool. The
16-bit control word and 32-bit drive-to-drive reference 1 are transmitted from one
dataset on a 500-microsecond (by default) time level; drive-to-drive reference 2 (32
bits) is transmitted from the other dataset on a 2-millisecond (by default) time level.
Depending on the drive control mode, the followers can be configured to use the
drive-to-drive commands and references with the following parameters:
Control data Parameter
Setting for drive-to-drive
communication
Start/Stop commands
10.01 EXT1 START FUNC
10.04 EXT2 START FUNC
(4) D2D
Speed reference
24.01 SPEED REF1 SEL
24.02 SPEED REF2 SEL
(5) D2D REF1 or
(6) D2D REF2
Torque reference
32.01 TORQ REF1 SEL
32.02 TORQ REF ADD SEL
(5) D2D REF1 or
(6) D2D REF2
Position reference
65.04 POS REF 1 SEL
65.12 POS REF 2 SEL
(5) D2D REF1 or
(6) D2D REF2
Position reference in synchron
control operating mode
67.01 SYNC REF SEL
67.02 VIRT MAS REF SEL
(5) D2D REF1 or
(6) D2D REF2
X5:D2D
...
1
T
J3
Termination ON
JCU
Drive 1
B
2
A
3
BGND
X5:D2D
1
J3
Termination OFF
JCU
Drive 2
B
2
A
3
BGND
T
X5:D2D
1
T
J3
Termination ON
JCU
Drive n
B
2
A
3
BGND