Precautions When Using Remote I/O System - Panasonic MEWNET-F Technical Manual

9.7 Precautions When Using Remote I/O System

Be sure to take the following notes for using the remote I/O system [MEWNET-F].
(1) Install and remove the units that configure the [MEWNET-F] with all power OFF.
(2) Be sure to install the units that configure the [MEWNET-F] securely on the backplane.
(3) Pay attention not to allow pieces of wire or other objects to fall into the unit when making wiring
connections.
(4) Do not touch the connectors on the rear side.It may cause damage to the master unit or slave unit
because of static electricity.
(5) Do not drop the units or boards and do not apply excessive force to any unit.
(6) The system should only be used within the specified ratings.
(7) The system should be used in a place where it will not be influenced from power transmission lines,
high voltage equipment, power cables, power equipment, hum and surge generating equipment.
(8) When installing the power supply line and communication line, wire them in separate ducts, or
maintain a clearance between those lines.
(9) If any one of product numbers, AFP3740, AFP87441, AFP87442 and AFP3741 is used in the
network, the transmission distance will be shorten as shown in the table below.
Cable
Product No.
Type
Hitachi Cable, KPEV-S1.25 mm
Twisted Belden 9860
pair
Hitachi Cable, KPEV-S 0.5 mm
Belden 9207
VCTF VCTF 0.75 mm
2
x 1P
2
x 1P
2
x 2C
Max. transmission distance (Total length)
When they are not
used
700 m
600 m
400 m
When any one of
them is used
300 m
300 m
200 m
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