Wiring
Section 2-3
23
These Terminal Block Units can be mounted to a DIN-rail or to a flat surface using
screws. The connector on front of the Unit must be connected to a Terminal Block
Unit through a standard (40 wire) cable. For this purpose you can use the standard
available cables with product-number XW2Z-xxxK. The length of the cable is indi-
cated by ‘xxx’ in centimetres. The following cables are available:
•
XW2Z-050K (0.5 m)
•
XW2Z-100K (1 m)
•
XW2Z-150K (1.5 m)
•
XW2Z-200K (2 m)
•
XW2Z-300K (3 m)
•
XW2Z-500K (5 m)
The next figure shows how to use the Terminal Block Unit in a typical configuration
together with the CJ1W-CTL41-E Counter:
Refer to section Appendix A
Using Input Terminal Block Units
for information on
the numbering of the screw-terminals. You need this information in case you want
to connect the external signals via Terminal Block Units to the Counter Unit.
2-3-3
Important Wiring Considerations
Use the following guidelines when planning the system wiring of the Unit:
•
Disconnect the power to the PLC-system before wiring the Unit.
•
Make sure the PLC-system is properly grounded.
•
Use shielded, twisted pair cables and ground the shield when wiring the Coun-
ter Inputs (A, B, Z). When grounding the shield at the side of the Unit, use the
same reference as the ground terminal of the PLC-Power Supply is connected
to.
•
Make the wiring for the Counter Inputs A, B and Z as short as possible and do
not route the wires parallel to lines that produce a lot of noise, such as high-volt-
age power lines.
•
Use a separate stabilised Power Supply for the Counter Unit and another Power
Supply for other Units.
0
12
34
5
67
89
0
12
34
5
67
89
2
RUN
ERC
ERH
CH1
CH2
CH3
CH1
CTL41
