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Operations Checklist
Section 3-5
Wiring
Master
Is the Master Unit connected at the end of the main line when the
main line needs to be distinguished from the branch lines.?
Yes
No
Is the cable connected to the Master correctly?
(Refer to
3-4 Master/Slave Connecting Cables
for details.)
Yes
No
With CQM1 Masters, has the alarm output terminal been wired?
(Refer to
6-4-2 Error Detection with the Alarm Output (CQM1 Only)
for details.)
Yes
No
Slave
Are the cables connected to the Slaves correctly?
(Refer to
3-4 Master/Slave Connecting Cables
for details.)
Yes
No
Is there just one Slave connected to each branch line when the main
line needs to be distinguished from the branch lines?
(Refer to
2-2-1 Main Line/Branch Line Connections
for details.)
Yes
No
Terminator
Has just one terminator been connected at the end of the main line
opposite the Master?
(Refer to
for details.)
Yes
No
Main line length
When the main line needs to be distinguished from the branch lines,
is the length of the main line within specifications?
(Refer to
for details.)
Yes
No
Branch line
lengths
When the main line needs to be distinguished from the branch lines,
is the length of the each branch line within specifications?
(Refer to
for details.)
Yes
No
Total branch line
length
When the main line needs to be distinguished from the branch lines,
is the total length of the branch lines within specifications?
(Refer to
for details.)
Yes
No
Number of Slaves
Is the number of Slaves within the limit set on the Master?
(Refer to
SECTION 4 Master Unit Specifications and Operations
for
details.)
Yes
No
When using 4-conductor VCTF cable or Special Flat Cable, are the
main line length and total branch line length of the system with a
maximum of 16 Slaves within specifications?
(Refer to
for details.)
Yes
No
Cable
Has just one kind of cable (Special Flat Cable or VCTF cable) been
used in the CompoBus/S System?
Yes
No
If Special Flat Cables are used for multiple CompoBus/S Systems,
install the cables at least 5 mm apart from other Special Flat Cables.
Yes
No
Noise
Is the wiring separated from any power/high-voltage lines?
Yes
No
Cable
2-conductor VCTF
cable
Has 2-conductor (0.75 mm
2
) cable been used?
Yes
No
4-conductor VCTF
cable
Has 4-conductor (0.75mm
2
) cable been used?
Yes
No
Has the 4-conductor cable power supply been used to supply power
to the Slaves only (not for other purposes, such as I/O power sup-
ply)?
Yes
No
Special Flat Cable Has the Special Flat Cable power supply been used to supply power
to the Slaves only (not for other purposes, such as I/O power sup-
ply)?
Yes
No
Power supply
4-conductor VCTF
Cable, Special Flat
Cable
Does the power supply configuration match the plan?
(Refer to
2-3 Supplying Power to the Slaves
for details.)
Yes
No
With local and dual power supply Slaves, is there a separate power
supply for the I/O?
(Refer to
2-3 Supplying Power to the Slaves
for details.)
Yes
No
2-conductor VCFF
cable
Have the Slaves been wired correctly? (The Units can be damaged if
the power supply is connected to the communications terminals.)
(Refer to
2-3 Supplying Power to the Slaves
for details.)
Yes
No
Item
Check
Answer