Omron CQM1H-CLK21 - Manual (Page 82)

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Unit Installation Section 3-2
2. Be sure that all screws on the Backplane, the Bus Connection Unit, the ter-
minal block, and cables are tightened firmly. If screws work loose, a mal-
function may occur as a result of vibration.
3. A label has been placed over the upper surface of the Controller Link Unit
to prevent scraps of wire from entering the Unit. Conduct wiring and instal-
lation with this label in place. If wire scraps get into the Unit, it will malfunc-
tion.
4. Remove the label after wiring and installing the Controller Link Unit to pre-
vent overheating. Overheating will cause the Unit to malfunction.
3-2-1 Mounting Controller Link Units
C200HX/HG/HE PLCs
Up to two C200HX/HG/HE Controller Link Units can be mounted on the CPU
Rack. Controller Link Units cannot be mounted to an Expansion I/O Rack or a
Slave Rack.
Note Tighten the screws on the Backplane to a torque of 1.2 N • m.
Tighten the screws on the Bus Connection Unit to a torque of 0.4 N • m.
Installing One Controller Link Unit
Mount the Unit in the slot on the left of the CPU Unit.
Installing Two Controller Link Units
Mount the Units in the two slots on the left of the CPU Unit.
C200HW-CE001 Bus Connection Unit
(For one Unit)
Controller Link Unit
CPU Unit
CPU Backplane
C200HW-CLK21
Controller Link Unit
CPU Unit
(C200HE-CPU32/42-(Z)E
C200HG-CPU33/43/53/63-(Z)E
C200HX-CPU34/44/54/64-(Z)E
C200HW-COM01/04
Communications Board
Controller Link Unit
Controller Link Unit
CPU Unit
CPU Backplane
C200HW-CE002 Bus Connection Unit
(For two Units)
C200HW-CLK21
Controller Link Unit
CPU Unit
(C200HE-CPU32/42-(Z)E
C200HG-CPU33/43/53/63-(Z)E
C200HX-CPU34/44/54/64-(Z)E
C200HW-COM01/04
Communications Board