(3) Alarm No.15
(ME2)
Memory Error 2
[The integrity of the contents of
the 2-port RAM which communicates
with the NC during initialization
is checked.1
Item
Cause Check Remedy
The connector
(CNlA)
which is linked with the
NC through the bus is
not securely connected.
D
Check the looseness of the
D
Securely connect the connec-
connector.
tor and tighten the screws.
o
Check that the set screws of
the connector are not loosen.
(See Appendixes l-6 to l-9
and
2-3.)
The cable
(CAM11)
which
0
Replace the cable with a new
is connected with the NC
one and check that the equip-
through the bus is ment correctly works.
defective.
(See Appendix
3(2).)
o
Replace the cable with the
new one.
The ground wires of the
o
Visually check that the
NC,
amplifier, and motor
ground wires are correctly
are not correctly con- connected by referencing
nected.
Appendix 1.
o
Correclty connect the
ground wires.
6
L
The signal cable is not
correclty shielded.
The printed circuit
board SF-TL card is
defective_
The NC side printed
circuit board
~~611
or
MC632 is defective.
0
Visually check that the
signal cable is correctly
shielded by referencing
Appendix 1.
o
Replace the SF-TL card with
a new one and check that the
equipment correctly works.
(See Appendix
6(3)1
o
Replace the MC611 or MC632
cards with new ones and check
that the equipment correctly
work.
(See
"M300
Series Maintenance
Manual".)
o
Correctly shield the signal
cable.
o
Replace the SF-TL card with
a new one.
(See Section 2.4.3.)
D
Replace the MC611 or UC632
cards with the new ones.
MC632: M310
MC611: All other
-
24
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