ABB ACS800 Firmware Manual page 306

306
The following figure describes the Master/Follower ring network (channel 2) on the
RMIO boards.
Note: Only the ring topology is supported.
T = Transmitter; R = Receiver; RMIO = I/O and Control Board
Please note that channels CH0/CH2/CH3 are located on the optional RDCO-0x board.
Using the Adaptive Programming (AP) and the Write block, you can switch between
the Master/Follower/standby link modes in the drives connected to the ring network
(channel 2). Parameter
the Master/Follower link. The mode is switched between MASTER, FOLLOWER1
and STANDBY via two available digital inputs.
In the following example:
• Actual signal 01.17.3 = digital input DI4
• Actual signal 01.17.4 = digital input DI5
DI4
When the Master or Follower mode is switched, parameters
DIR and
sources.
Parameter
Adaptive Programming examples for crane control
Master
ACS800
RMIO-XX
RDCO-0X
CH2
T R
60.01
DI5 Master link mode (60.1)
0 0 Standby (value 7)
0 1 Follower 1 (value 3)
1 0 Master (value 2)
1 1 Follower 1 (value 7)
11.06 EXT REF2 SELECT must be updated according to the correct
03.36 M F STATUS WORD indicates the drive mode.
Standby
ACS800
RMIO-XX
RDCO-0X
CH2
T R
MASTER LINK MODE defines the role of the drive on
Follower
ACS800
RMIOXX
RDCO-0X
CH2
T R
10.02 EXT2 STRT/STP/