48
6 WIRING
6.4 Wiring Precautions
6.4
Wiring Precautions
• Do not run multiple transmission cables (DP, DN) using a multicore cable.
• The voltage should not fall below the lower limit of the allowable voltage range due to voltage drop caused by the cable. If
the voltage falls below the lower limit, malfunctions may occur.
• Do not connect soldered cables directly to the terminals. Doing so may loosen the screws, resulting in a poor contact.
• In the AnyWireASLINK system, signals and power are supplied to a slave module with two transmission cables: DP and
DN. Therefore, use a stranded wire of 1.25
or larger as the main line.
• General-purpose wire, cabtyre cable and flat cable, etc. can be used.
• Use a crimping tool to connect a wire ferrule to a cable.
• Before inserting a wire ferrule, check the shapes of the wire insertion opening and wire ferrule. Then, insert the terminal in
the correct orientation. A wire ferrule wider than the wire insertion opening may damage the terminal block. (
• Signal names are not printed on the transmission cable terminal block. To avoid incorrect wiring, wire cables to the terminal
block attached to the FX5-ASL-M.
• Do not insert multiple wire ferrules into one wire insertion opening. Doing so may cause damage on the terminal block or
cable, or malfunction.
6.5
Power Supply/grounding Wiring
Power supply/grounding wiring
Grounding
Perform the following.
• Perform class D grounding. (Grounding resistance: 100
or less)
• Ground the PLC independently if possible.
• If the PLC cannot be grounded independently, perform the "Shared grounding" shown below.
• Bring the grounding point close to the PLC as much as possible so that the ground cable can be shortened.
DP
DN
DP
DN
DP
DN
DP
DN
Grounding
(Grounding
resistance:
100
or less)
Grounding
(Grounding
resistance:
100
or less)
0V LG
24V
FX5U CPU module
24 V DC
FX5-ASL-M
IN
PLC
Other
equipment
Other
equipment
Other
equipment
PLC
PLC
Shared grounding
(Good condition)
Common grounding
(Not allowed)
Independent grounding
(Best condition)
Summary of Contents for MELSEC iQ-F FX55-ASL-M
Page 1: ...MELSEC iQ F FX5 User s Manual ASLINK ...
Page 2: ......
Page 12: ...10 INDEX 88 REVISIONS 90 WARRANTY 91 TRADEMARKS 92 ...
Page 13: ...11 CONTENTS ...
Page 23: ...3 PROCEDURES BEFORE OPERATION 21 3 MEMO ...
Page 91: ...I 89 MEMO ...
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