Led Status - Mitsubishi Electric FR-F720-55K Instruction Manual

PRE-OPERATION INSTRUCTIONS
1.4

LED status

Each LED indicates the operating status of the option unit and network according to the indication status.
X10
X1
FR-A7NF
8
D1 D2
D3 D4
SW2
0
0
D1 D2
S
D3 D4
D1: Communication set status LED (CHG)
D2: Device status LED (DEV)
D3: Reception/transmission LED (TX/RX)
D4: Remote status LED (RMT)