4 - 21 4 - 21
MELSEC-A
4 SETUP AND PREPARATION BEFORE OPERATION
4.10.3 Wiring procedures for the one-touch connector for power supply and FG
The following are the wiring procedures for the one-touch connector used for power
supply and FG.
Plug body
Plug cover
Metal contact
1) Check the connector.
Check that the plug cover is attached to the plug body.
Note: Do not push the plug cover into the plug body.
Once pressed, the plug cannot be used any more.
5 4 3 2 1
Signal name
FG
+24V (UNIT)
24G(UNIT)
NC
NC
Metal contacts
1m
m o
r le
ss
2) Insert the cable. ( 1)
Lift the end of the plug cover and insert the cable until it almost
reaches the plug body (within 1mm from the other end of the
plug cover).
Insufficient cable insertion may cause improper press fitting.
Note: When inserting the cable, prevent the cable from sticking
out from the plug cover end.
Metal contacts
3) Set the plug cover.
After inserting the cable, put down the plug cover so that its
face is horizontal to the plug surface, allowing the metal
contacts to be fitted into the plug cover.
Pliers
4) Press the center part of the plug cover.
Using pliers, press the center part of the plug cover vertically
and strongly.
For the one-touch connector for power supply and FG, use
adjustable pliers so that their jaws can be widely opened.
Latches
Pliers
5) Press both ends of the plug cover
After pressing the center part of the plug cover, press both ends
of the plug cover where latches are located.
Verify that the latches engage with the plug body.
(To the next page)
