I
•
•
4. A2CCPU
-------------------
MELSEC·A
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
A2G.
200 VAG
input
:
Open between terminals.
(5)
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
Bhcrt-clrcult
Operates normally Destroys the A2C
Voltege
(200 VAG)
switching
The A2C does not operate.
terminal Open
(No error occurs in the Operates normally
(200 VAG)
A2G.)
4-83
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