OPERATION MANUAL CompoBus/S

CJ1W-SRM21 Master Unit for CJ-series PLCs Section 4-3
Use the following crimping tools.
Model Manufacturer
UD6 (product code 1204436) Phoenix Contact
or ZA3 Series
PZ1.5 Crimper
Weidmuller
(product code 900599)
Preparing and Connecting Communications Cables
Use the following procedure to connect the communications data/communications
power supply to the connector.
Note 1. Always turn OFF the Master’s power supply and communications power
supply before connecting or disconnecting the communications data/communications
power supply
2. Use a dedicated communications connector.
Screwless Connector
Install the screwless communications connector in the Master Unit and then
prepare as follows:
1,2,3... 1. Remove sufficient (approx. 10 mm) insulation from the signal wires for a
crimp terminal, and twist the exposed wire strands together tightly.
Approx. 10 mm
Note If using VCTF cable, cover the severed end of the insulation with vinyl tape or
heat-shrinking tube.
Apply vinyl tape or heatshrinking
tube
2. After installing the crimp terminal to the stripped end of the signal wires,
apply vinyl tape or heat-shrinking tube. The signal wires of the CJ-series
Master Unit’s communications connector can be connected without using
crimp terminals.
Note Always use the specified crimping tool to install crimp terminals. When a
crimping tool is not used, the terminal cannot be correctly crimped and may
cause the cables to be disconnected.
3. Check the direction of the connector and insert each of the signal wires securely
into the back of the connector holes. (The signal wires are fixed, so
a tool is not required to secure them.)
If crimp terminals are not installed on the signal wires, use a small flat-
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