-BL2LN87SB02D*CC20 16/20-
＜
LINK does not flash
＞
Remedy
Check the connection of this unit.
Check conditions of the master unit
and slave unit.
Disconnect this unit once, and then reconnect it.
[Troubleshooting]
Things to be checked
Remedy
Things to be checked
Remedy
Things to be checked
Remedy
Things to be checked
Remedy
Things to be checked
1) If LINK on the master unit is flashing and LINK on the slave unit is lit, it is possible that the master
unit has a fault or power supply (24V-0V) is directly connected to the DP-DN pins of the slave unit.
*
If LINK is lit while ALM is flashing, it means a failure in single unit simplified replacement.
2) If LINK on the master unit is flashing and LINK on the slave unit is unlit, it is possible that the power
(24V DC) is not supplied to the master unit, there is a disconnection on the transmission line (DP,
DN), or the slave unit has been damaged.
3) If LINK on the master unit is not flashing, check the power supply to the master unit. Also, since there
is a possibility that some system error has occurred, refer to the user’s manual of the master unit.
4) A slave unit incompatible with Ver.1.1 cannot be used in connection to the AnyWireASLINK system
for word transmission. Check the setting of the master unit, and lot No. of the slave unit.
＜
ALM is lit
＞
＜
ALM is flashing
＞
＜
LINK and ALM flashes alternately
＞
＜
LINK is lit and ALM is flashing: Model mismatching error (Failure in single unit simplified replacement)
＞
Check the connection of I/O terminals
on the slave unit.
When IN flashes in synchronization with LINK while ALM is lit, the unit has I/O disconnection.
If only ALM is lit, the unit has I/O short-circuit or I/O voltage drop.
Check information by reading the status detail area
*
.
1) Make sure that the slave unit I/O line and load are normally connected. Use caution about
disconnection of the wiring and insufficient screw tightening.
2) To connect a mechanical contact (relay, switch, etc.) as load, OFF signal cannot be differentiated
from disconnection. In this case, set the equipment parameter for the disconnection detecting
function to OFF.
3) Check wiring of the slave unit terminals to ensure that the connected load meets the power supply
and output specifications of ASLINKER, and adjust it as required.
4) Adjust the power supply voltage of an external power source connected to the slave unit I/O line, so
that the power supply voltage does not exceed the rated voltage range (21.6V to 27.6V). Make sure
that wires of the transmission line do not touch each other. Check for incorrect wiring of the terminals.
*
Refer to the manual for the master unit.
Adjust the voltage of external power supply to the master unit so that it will be in the range from 21.6 to
27.6V. (Recommended voltage is 26.4V.) Check the total length.
Review the total length and wire diameter of transmission line so that the load will not exceed the current
limit supplied by the transmission line and adjust the connected load. (In the case of the wire size of
1.25mm
2
and total length of 50m or less, the current supplied by the transmission line is 2A.)
*
If ALM is flashing while LINK is lit, it means a failure in single unit simplified replacement.
Check if the replacement slave unit is of the same type as that of the slave unit before the replacement.
Check if the function version for the replacement slave unit is older than that of the slave unit before the
replacement.
*
If the function version of the replacement slave unit is older, the single unit simplified replacement function does not
work.
The address of the slave unit is either unregistered or duplicated.
Take the following actions.
*
The slave unit cannot be used with the factory-set address.
1) Set a bit address correctly in a range of 0 to 254.
2) Check if there is a slave unit on which the indicator lamps are flashing in the same manner and reset
the addresses so that they are not duplicated.
Check the address of the slave unit.
Check the address of the slave unit.
Check the model of the slave unit.
Check the lot No. of the slave unit.
Check the connection of the slave
unit.
Check the voltage (24V DC) of
external power supply to the master
unit.
Check if the address of the replacement slave unit is the same as the address before shipment (a bit
address of 511).
*
If the address of the replacement slave unit is not the same as the address before shipment, the single unit simplified
replacement function does not work.
Defective connections and the like may have caused single unit simplified replacement to fail.
Remove the slave unit after replacement, and make connections again.
*
When two or more replacement slave units are simultaneously connected, the single unit simplified replacement
function does not work.
