Mitsubishi Electric NF250-HEV, Instruction Manual

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5.5 Installation and wiring for products with CC-Link communication
5.5.1 Terminator installation
● Terminators are not included with this product. Use the terminator included with the master unit.
● Refer to the terminator manual included with the master unit for details on terminators.
Terminators (included with the master unit) must be installed on the units at both ends of the CC-Link transmission line.
Master unit MDU MDU
Special CC-Link
cable
Terminator
(included with master unit)
Cut
Cut Cut
15 mm
5 mm 5 mm 5 mm 5 mm 10 mm 10 mm
15 mm
Cut
Insulation tubes
Crimp terminals with insulation sleeves
Special CC-Link
cable
5.5.2 Shielded wire grounding
Connect both ends of the shielded wires from the special CC-Link cable to “SLD” on each unit.
Use “FG” on each unit as the dedicated ground.
Use class D grounding.
If a dedicated ground cannot be used, use a common ground as shown in the figure below.
If the MDU is at the end of the CC-Link transmission line, connect a terminator between DA and DB in the MDU terminal block.
MDU external mounting specification: Prepare the terminator included with the master unit as shown in the figure below.
MDU panel mounting specification: Preparation not required.
[Preparation method]
(1) Cut the resistor legs on both sides of terminator (leave 15 mm on each side).
(2) Cut the insulation tubes 5 mm from their ends.
Te
rmina
to
r
Terminator
DA
DB
DG
SLD
FG
DA
DB
DG
SLD
FG
DA
DB
DG
SLD
FG
MDU
Dedicated ground ...... Best Common ground ...... OK Common ground ...... Not possible
Class D ground Class D ground Class D ground
MDU MDU MDU MDU MDU
Caution