ALARM | DESCRIPTION | CAUSE / SOLUTION |
20: Fans Motor alarm | - The motor overload protection (QM) has intervened. - An overload of current has been absorbed by the ventilation/exhaust motor. - Electrical failure. | - Check if the motor is running with the correct rotation direction - Check if the motor protection device (QM) is turned OFF. - Check the connection between the motor protection device (QM) and the motor - Filter or motor could be dirty, missing a phase or faulty |
29: Exhaust contactor failure | - The exhaust motor contactor (KM) is not working. - Exhaust extraction is either always On or Off. - Electrical failure. | - Check the connection between the exhaust contactor (KM) and the exhaust motor. - Set temperature at 60°C and check if the contactor (KM) is working when the dryer has reached the pre-set temperature. - If contactor is not working, replace the (KM) contactor. |
30: Heating Contactor failure | - The heating contactor (KR) is not working. - Heating is either always On or Off. - Electrical failure. | - Check the connection between heating contactor (KR) and heating elements. - Replace the (KR) contactor. |
31: Main fan contactor failure | - The ventilation motor contactor (KL) is not working. - Ventilation is either always On or Off. - Electrical failure. | - Check the connection between fan contactor (KL) and fan motor. - Replace the (KL) contactor. |
35: Belt Alarm | - Belt speed sensor error. - Encoder is not reading the speed value. - Belt is not moving or belt is moving but speed is not shown on the PLC. | - If belt is moving, check the speed sensor connection and verify that is working (orange Led blinking). - If sensor connection is Ok but the Led is not blinking, replace the faulty sensor. - If belt is not moving, check belt motor wirings and verify the power supply. - Replace the motor. - If the motor is moving when powered externally, the PCB that communicate with the PLC is not working. Further checks are needed. |
41: Temperature probe PT100 error | - Error appear inside a grey area below the main PLC window. - Green Temperature value is fixed at 285°C | - Check the connection of the temperature probe on the PLC. - Replace the temperature probe. |
43: Temperature RIGHT probe PT100 error | ||
44: Temperature LEFT probe PT100 error |
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