Sysmac Bus Cable Connections - Omron CQM1H series Operation Manual

SYSMAC BUS Cable Connections

3-1 SYSMAC BUS Cable Connections
Remote I/O Master
+
–
70
Connect VCTF 0.75 x 2 C SYSMAC BUS cables to the CQM1-LK501 I/O LInk
Unit as shown in the following.
Note Nothing is connected to these terminals in the case of the terminator.
Connect the Master and Slaves as described in the following.
The positive terminal of the Master must be connected to the positive terminal of
the Slave and the negative terminal of the Master must be connected to the neg-
ative terminal of the Slave, and between Slaves, the positive terminals must be
connected together and the negative terminals must be connected together as
shown in the above diagram.
The end Slave of the system must be the terminator of the system. Any other
Slave must not be the terminator.
CQM1-LK501 I/O LInk Unit
Note 1. Connect the terminals with crimp-style terminals and M3 terminal screws
that are also used for CQM1H/CQM1 I/O Units.
2. Terminals B and B
0
also short-circuited internally.
3. Be sure to turn all the Slaves on before turning on the Master. Any Slave
turned on after the Master is turned on will not be recognized by the Master.
4. To satisfy the EC directives (low-voltage directives), provide reinforced in-
sulation or double insulation for the power supply when RUN OUTPUT is
used.
Connect the positive signal line
from the Master.
B
Connect the negative signal line
0
A
0
from the Master.
B
1
A
1
B
2
A
2
Connect the positive signal line to
B
3
A
the next Slave (see note).
3
B
4
Connect the negative signal line to
the next Slave (see note).
+
–
+
–
are short-circuited internally. Terminals B
2
Section 3-1
Other Slave
+ –
Terminator setting
and B
1 3
are