13

Troubleshooting

 

 

 

 

 

Symptoms

 

 

Checks/Remedies

LED does not irradiate.

 

 

Did you select the target channel for the product type? (When selected, the channel

 

 

 

switch is lit or flashing.)

 

 

 

 

 

→Select the target channel when setting the product type.

 

 

 

If the target channel is selected but does not irradiate, check if the irradiation time

 

 

 

is set to 0.0sec for the channel program for the target product type.

 

 

 

→If so, set the irradiation time to 0.0sec or longer.

 

 

 

 

When a warning message is displayed:

 

 

 

Temperature warning

 

 

The channel connection indicator changes to orange (mixture of green and red)

 

 

 

when the LED head temperature has reached the warning level. If you continue the

 

 

 

operation in this condition, the product life will be significantly shortened, and the

 

 

 

temperature may exceed the upper limit, causing an emergency stop.

 

 

 

→Set the UV intensity level (%) lower or improve the heat radiation performance

 

 

 

of the LED head to keep the temperature lower than the warning level.

Time warning

 

 

When the total irradiation time of the LED reaches the point 30 hours before the

 

 

 

preset LED replacement point, the time warning is issued and “x100hrs” will be

 

 

 

lit. When the time reaches the LED replacement point, the irradiation process will

 

 

 

make an emergency stop.

 

 

 

 

 

→Prepare a new LED head. After replacement, clear the total irradiation time.

When an error occurs:

 

 

 

 

 

Interlock emergency stop

 

 

The emergency stop contact was opened during irradiation.

“The interlock contact

was

opened

→Check the emergency stop contact or the external input terminal block.

during irradiation.”

 

 

Close the contact and then restart irradiation.

 

 

 

 

 

* If the emergency stop contact is open, normal resetting is not available.

 

 

 

Hold down SET to forcibly reset the interlock.

 

 

 

 

 

 

Connection error

 

 

It is possible that the connection cable or LED head was broken.

“The LED was disconnected during

→Reset the error status, check the connection of the cable and LED head with the

irradiation.”

 

 

channel in question, and replace them if necessary.

 

 

 

 

LED wire broken

 

 

The current detection was stopped during irradiation. It is possible that the

“LED circuit opening was detected

connection cable or LED head was broken.

 

 

during irradiation.”

 

 

→Reset the error status, check the connection of the connection cable and LED

 

 

 

head with the channel in question, and replace them if necessary.

 

 

 

 

LED short-circuited

 

 

An overcurrent was detected during irradiation. It is possible that the connection

“LED short-circuiting was

detected

cable or LED head was short-circuited.

 

 

during irradiation.”

 

 

→Reset the error status, check the connection of the cable and LED head with the

 

 

 

channel in question, and replace them if necessary.

 

 

 

 

 

 

LED temperature error

 

 

The LED temperature exceeded the upper limit.

 

 

“The LED temperature

reached an

→Set the UV intensity level (%) lower or improve the heat radiation performance

abnormal temperature.”

 

 

of the LED head to keep the temperature lower than the warning level.

 

 

 

 

LED time error

 

 

The total irradiation time of the LED reached the preset LED replacement point.

“The total irradiation time reached the

(Or, it is possible that the LED replacement point was set ahead the total irradiation

replacement point.”

 

 

time.)

 

 

 

 

 

→Reset the error status, replace the LED head, and then clear the total irradiation

 

 

 

time. (Or, go to the mode setting screen and correctly set the LED replacement

 

 

 

point.)

 

 

LED calibration error

 

 

Calibration was stopped before completion. Or, the calibration was not successful.

“Calibration uncompleted”

 

It is possible that the setting is too high, or there is a problem in the dedicated UV

 

 

 

sensor (option).

 

 

 

 

 

→Reset the error status, check the connection of the UV sensor, review the setting,

 

 

 

and then retry calibration.

 

 

 

 

 

 

 

 

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