4. A2CCPU
MELSEC·A
I
•
•
·
No.
Name
Function
(2)
ERR terminal
• This is the terminal that outputs MINI-S3 link errors and self-diagnostic errors.
(See Section 4.2.10.)
(3) Power input terminal • This connects 100 VAC or
200
VAC power supply.
(See Section 4.1 for the specification and Section
6.4.2
for the connection.)
(4)
Voltage sWitching • Used to set the voltage inputted to the power input terminal
terminal
(See Section
6.4.2
for the connection)
100
VAC input :
Short-circuit between terminals by use of a jumper supplied
with
the
A2C.
200 VAC
input
: Open between terminals.
(0)
LG terminal
• For grounding of the power filter
• This has the electric potential of the half of that of the input voltage.
(6) FG terminal
• This is connected to the shielding pattern on the printed circuit board.
POINTI
If the
supply
voltage
to
the
power
input
terminal is
different
from
voltage
setting
of
the
voltage
switching
terminal,
the
following
occurs.
~
Supply
Voltage
to
Power
Input
Terminal
100
VAC
200VAC
Short-
circuit Operates normally
Destroys the A2C
Voltage
(200 VAC)
switching
terminal
Open
The A2C does not operate.
(200 VAC)
(No error occurs in the
Operates normally
A2C.)
4-91
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