ABB ACS880-104

72 Program features
Ring configuration with fiber optic cables
T = Transmitter; R = Receiver
Follower 2
(ZCU) Control unit
FDCO
RT
Follower 1
(BCU) Control unit
RDCO
RT
CH2
Master
(ZCU) Control unit
FDCO
RT
Follower 3
(ZCU) Control unit
FDCO
Follower 1
Star configuration with fiber optic cables (1)
T = Transmitter
R=Receiver
NDBU
MSTR CH0 CH1 CH2
R T R T R T R T
RT
(ZCU) Control unit
Follower 2
(BCU) Control unit
RDCO
RT
CH2
FDCO
RT
Master
(ZCU) Control unit
FDCO
RT