Anywire ASLINKER BL2LN87SB-02D CC20 Series System Product Manual - Page 16

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[Troubleshooting]

＜ LINK does not ash ＞

Things to be checked

Check the connection of this unit.

Check conditions of the master unit

and slave unit.

＜ ALM is lit ＞

Things to be checked

Check the connection of I/O terminals

on the slave unit.

＜ ALM is ashing ＞

Things to be checked

Check the voltage (24V DC) of

external power supply to the master

unit.

＜ LINK and ALM ashes alternately ＞

Things to be checked

Check the address of the slave unit.

＜ LINK is lit and ALM is ashing: Model mismatching error (Failure in single unit simpli ed replacement) ＞

Things to be checked

Check the connection 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.

Disconnect this unit once, and then reconnect it.

1) If LINK on the master unit is ashing 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 ashing, it means a failure in single unit simpli ed replacement.

2) If LINK on the master unit is ashing 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 ashing, 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.

When IN ashes 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 insuf cient 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 speci cations 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

and total length of 50m or less, the current supplied by the transmission line is 2A.)

If ALM is ashing while LINK is lit, it means a failure in single unit simpli ed replacement.

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 ashing in the same manner and reset

the addresses so that they are not duplicated.

Defective connections and the like may have caused single unit simpli ed 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 simpli ed replacement

function does not work.

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 simpli ed

replacement function does not work.

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 simpli ed replacement function does not

work.

-BL2LN87SB02D*CC20 16/20-

Remedy