Mitsubishi Electric Melsec A Series - CHAPTER 3 REPLACEMENT OF MELSECNET (II) AND;B (REMOTE I;O NETWORK)

4. A2CCPU
4.9 Part Identification
MELSEC·A
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•
•
(1) External view of A2C
[QJ
STOP
B~LQ
L-CLR~RUN
RESET RESET
A2e CPU
(1) -
(2)
(3)
_CJ POWER hUTSUBlSHl
o RUN
0,
-SDA
(4)
CJ ERROR
--oj
(5)
oso
01 -SG
(6)
ORD
--oj
o l -508
--;
o l -RDA
I-C_;
(7) PULL D-
O I -ROB
--oj
o l -SlD
--;
, ~---, ,
o l -ERR(+)
(9)
- -;
" 0 "
01 -ERR(-}
: ~---~ :
: ::'~\:
--;
(8)
:' 0 " ::
0
1
"
" " " ::
- - -t INPUT
[
::" 0 ::
o l ~100/2(l(N
n ~ : !!
--;
::" D ::
o l"
::" 0 ::
__ -l SHORT AC100V
i:::n
u, D ::
o I ~EN AC200J
lf~i~;j
--;
o l -LG
--;
1O1
0, -FG res
~ 0
No. Name Function
(1) RUN key switch A2C operation status setting key
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• RUN/STOP:
To start/stop running a sequence program
• RESET:
To reset the hardware
To reset an error occurring during operation to initialize operation.
• LATCH CLEAR:
To clear (turning OFF, or clearing to "0") the devices in the latch range and
non-latch range which are set by parameters.
For the latch clear operation procedure, refer to Section 4.2.2.
(2)
POWER LED 5V DC power supply indicator LED
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• ON:
100/200 VAC is supplied to the A2C and converted into 5 VDC correctly.
• OFF:
100/200 VAC is not supplied to the A2C.
Supplied 100/200 VAC is not converted into 5 VDC correctly.
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