Loading And Installation; Unit Wiring Precautions; Wiring - Mitsubishi MELSEC-A A1SD71-S2 User Manual

5. LOADING AND INSTALLATION
MELSEC-A
5. LOADING AND INSTALLATION
This section explains the methods for loading and installation and the precau-
tions to take to increase system reliability and to use the functions most
efficiently.
5.1
Unit Wiring Precautions
When the AlSD71 is connected to the base (main base unit and extension
base), heed the following:
(1) Do not connect it to the extension base without a power supply module
(AlS513 extension base).
(This is because the 5 VDC current consumption is very high.)
the PC CPU board.
(2) If
the board temperature exceeds
55
OC, consider forcible ventilation of
5.2
Wlring
The following describes (a) precautions when doing wiring between the
AlSD71 and external devices, and (b) how to use the external wiring connec-
tor.
5.2.1
Wlrlng precautlons
Precautions when doing wiring between the AlSD71 and external devices
(including a drive unit) are described below.
A
connection examples is given
in Appendix 3.
(1) Length of connection cable between the AlSD71 and drive unit
The length of the connection cable between the AlSD71 and the drive
unit is generally 1 to 3 meters (3 to 10 feet). However, the distance
depends on the drive unit specifications.
Make sure to confirm the correct specifications.
(2) I/O signal wiring
Do not put the connection cable next to the power or main circuit cable.
If
the connection cable has to be brought close to them, either separate
If
the cables must be bundled together, use a batch-sealed cable and
If the cables are wired with conduct, make sure to ground the conduct.
Keep AlSD71 wiring and other electric wires at least 10 cm apart.
If
the connection cable is too long, and is too close to a main circuit
the ducts or use conduct.
ground them on the PC CPU side.
cable, noise may cause a malfunction.
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