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INSTALLATION
8
(4) When the CPU has automatic refresh function (example: QnA series CPU)
Through communication with the corresponding devices using sequence ladder logic, data is automatically transferred to
the refresh buffer of the master station at the execution of the END instruction to perform communication with the remote
devices.
(5) When the CPU does not have automatic refresh function (example: AnA series CPU)
Data is transferred to the refresh buffer of the master station directly by sequence ladder logic to perform communication
with the remote devices.
2.5 Wiring Method
The following diagram shows how to wire the inverter and PLC CC-Link master unit:
U
V
W
R
S
T
DA
DB
DG
SLD
FG
DA
DB
DG
SLD
PLC CC-Link master unit
Power
supply
Inverter
Motor
FR-E5NC
Note: Ensure that no wire offcuts can enter the inverter during wiring. They may cause a fault, failure or malfunction.