Mitsubishi MELSEC-A Series Operating Manual page 48

5.
OPERATING PROCEDURES
BllElSEC-A
5.1.1
Connectlng
the
AIPUE to
an
AWU
Although the A8PUE can be connected to an ACPU even while it is running,
Mitsubishi recommends connecting the ABPUE to an ACPU while it is in the
STOP state. If it must be connected while in the RUN state, make sure to
insert the connector properly.
(1 )
Connection using the add-on method
In this method, the A8PUE is installed directly onto the ACPU module.
However, the add-on method cannot be used for connecting an A I S and
A2CCPU(C24/PRF) because screws cannot be tightened.
Connect then using the hand-held method.
A8PUE anchor screws
1
t
\
RS-422 connector
The connection procedure is as follows:
1) Remove the cover of the ACPU's RS-422 connector.
2) Remove the RS-422 connector protection cap from the rear of the
ABPUE.
Put the protection cap in a safe place.
3)
Connect the A8PUE to the RS-422 connector of an ACPU, and firmly
tighten the A8PUE anchor screws.
Tighten the anchor screws at a torque of 39 to 49 N.cm (4 to 5 kg.cm).
4) About 14 seconds after the connection is completed, both the A8PUE
software version and the ACPU model name will be displayed.