User`s manual

4 - 3
MELSEC-
A
4 SETUP AND PREPARATION BEFORE OPERATION
4.3 Name of Each Part
The name of each part in the AJ65SBT-64AD is shown.
Number
Name and
appearance
Description
1)
Operation status
display LED
PW LED
ON : Power supply on
OFF: Power supply off
RUN LED
Normal mode
On : Normal operation
Flashing : 0.1s intervals indicate an input range error.
Off : 24VDC power supply shutoff or watchdog timer error occurred.
Test mode
On : Indicates that the SELECT/SET switch is in the SET position.
Flashing : 0.1s intervals indicate that the input range setting is not any of
"user range settings 1 to 3".
0.5s intervals indicate that you attempted to make offset/gain
setting outside the setting range.
Off : Indicates that the SELECT/SET switch is in the SELECT or
center position.
L RUN LED
On : Normal communication
Off : Communication cutoff (time expiration error)
L ERR. LED
On : Indicates that transmission speed setting or station number setting is outside
the range.
Flicker at fixed intervals : Indicates that transmission speed setting or station number
setting was changed from that at power-on.
Flicker at unfixed intervals : Indicates that you forgot fitting the termination resistor or the
module or CC-Link dedicated cable is affected by noise.
Off : Indicates normal communications.
2)
Offset/gain adjusting
LEDs
CH
OFFSET
GAIN
Normal mode Normally OFF.
Test mode
The LEDs lit change every time the SELECT/SET switch is moved to
SELECT. (Refer to Section 4.4.)
3) SELECT/SET switch Used to make offset/gain setting in the test mode.