Master Mode - YASKAWA MP900 Series User Manual

1.1.2 Master Mode

There are two connection methods for Master Modes.
Multi-drop Connections
MP920
Terminating
resistance
121 Ω
T-branch, Multibranch, and Drop-line Branching Connections
MP920
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Internal I/O power supply
PS
External I/O power supply
PS
260IF
I/O
Trunk line
Drop line
External I/O power supply line
Internal I/O power supply line
Communications power supply
line
260IF
Terminating T-branch
resistance Adaptor
121 Ω
I/O I/O
1-3
1.1 Outline of Configuration and Functions
I/O
PS
FG
Trunk line
Drop line
External I/O power supply line
Internal I/O power supply line
Communications power supply
Multibranch Adaptor
I/O I/O I/O
FG
I/O
Terminating resistance
121 Ω
Communications Power Sup-
ply Tap (with reverse-current
prevention for multiple power
supply units)
Communications
power supply
Communica-
tions Power
Terminating
Supply Tap
resistance
121 Ω
Communications
PS
power supply
External
PS
I/O power supply
Internal
PS
I/O power supply
1