SMC Networks EXW1-BECAC Operation Manual page 79

•Remote troubleshooting
LED
Trouble No.
Name
1 All
2 PWR
3 MS
LED status
Colour
ON/Flashing
of LED
- OFF
Red Flashing
- OFF
Red Flashing
Red ON
- OFF
Possible causes
The US1 (for control / input) power
supply is OFF
Reduction in the US2 (for output)
power voltage (when the setting is
enabled)
The US1 (for control / input) power
supply is OFF
The following diagnostic
information is detected.
(1) Short-circuit detection of the
US1 power supply (for control /
input)
(2) US1 (for control / input) power
supply voltage level is abnormal
(when the setting is enabled)
(3) Short-circuit detection of the
US2 power supply (for output)
(4) Memory read/write error
Remote malfunction
The US1 (for control / input) power
supply is OFF
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Investigation and
countermeasures
Supply 24 VDC +/-10% for US1
(for control / input) power source.
The power supply voltage of the
US2 (for output) power supply is
low. Supply 24 VDC +/-10%.
Supply 24 VDC +/-10% for US1
(for control / input) power source.
After checking the error contents
while referring to the system
diagnostic information and LED
indication, refer to the following
countermeasures.
(1) Re-wire the short-circuited part
or check if the cable and input
device are normal.
(2) The power supply voltage of
the US1 (for control / input)
power supply is low. Supply
24 VDC +/-10%.
(3) Re-wire the short-circuited part
or check if the cable and output
device are normal
.
(4) Internal memory read/write
operations are not performed
normally. Initialize the product.
Replace the Remote
If the error persists after
replacement, stop using the
equipment and contact your SMC
sales representative.
Supply 24 VDC +/-10% for US1
(for control / input) power source.
No.EX※※-OMA1031-B