Mitsubishi MELSEC-A Series Operating Manual page 41

4.
. .
M A N W f f i AND,HOMENCtATURE
This sectlon tells how to handle the A8PUE and explains the part names
4.1
Precautlons
When Handllng the,MPUE
The following precautions should be taken when handling the A8PUE:
(1) Since the
case is
made of plastic, do not drop the A8PUE or subject it to
severe shocks.
(2)
Do
not disassemble the case (doing so could cause a malfunction).
(3) When not using the A8PUE, handle the RS-422 connector as follows:
1) Attach
the
cover to the RS-422 connector on the right side of the
2) Attach the protective cap to the RS-422 connector on the rear side
unit.
of the unit.
(4) When using the A8PUE, the RS-422 connector not used
for
connection
to an ACPU should have
its
cover or protective cap on.
(5)
Do
not remove the connector cover
of the extension interface on the
upper side
of
the unit.
(6)
Do
not touch the RS-422 connector pins (doing so could cause a mal-
function).
(7)
Do not remove the cover of the A8PUE.
Do not
loosen
the screws that hold the cover (doing
so could cause a
malfunction).
(8) Always press the [CLEAR] key before disconnecting the A8PUE from an
ACPU.
(9) Never use a cleaning agent such as thinner, alcohol,
or freon.
(10) Press keys only with the fingers.
Using a sharp instrument, etc. could cause a malfunction.
Since the A8PUE beeps when a key is pressed, key operations can be
confirmed by the sound.
IMPORTANT
I
When designing the system, to protect the PC, make sure to provide a
safety circuit outside that system.
I I
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