Mitsubishi Electric FREQROL Connection Manual page 71

2E)
• 1:1 Connection
Termination
resistance*1
Display
• Please set the terminating resistor switch of the External Device to the "100Ω" position.
• 1:n Connection
Display side
Terminal block
Signal name
Termination
resistance*1
RDA
RDB
SDA
Display
SDB
SG
ERA
CSA
ERB
CSB
• Please set the terminating resistor switch to the "100Ω" position only on the last External
*1 The resistance in the Display is used as the termination resistance. Set the value of the DIP Switch on the
rear of the Display as shown in the table below.
DIP Switch No.
1
2
3
4
GP-Pro EX Device/PLC Connection Manual
Display side
Terminal block
Signal name
RDA
RDB
SDA
SDB
SG
ERA
CSA
ERB
CSB
Shield
Device in the chain.
Set Value
OFF
OFF
ON
ON
Shield
External Device side
Terminal Block
Signal name
SDA1 (TXD1+) SDA2 (TXD2+)
SDB1 (TXD1-) SDB2 (TXD2-)
RDA1 (RXD1+) RDA2 (RXD2+)
RDB1 (RXD1-) RDB2 (RXD2-)
SG (GND) SG (GND)
71
FREQROL Inverter Driver
External Device side
Terminal Block
Signal name
SDA1 (TXD1+)
SDB1 (TXD1-)
RDA1 (RXD1+)
RDB1 (RXD1-)
SG (GND)
External Device side
Terminal Block
Shield Signal name
SDA1 (TXD1+)
SDB1 (TXD1-)
RDA1 (RXD1+)
RDB1 (RXD1-)
SG (GND)