Sumitomo injection molding machine computer repair

Injection molding machine control system malfunction(Electric heating main circuit)

Electric heating main circuit

Fault phenomenon1 Large temperature fluctuations

cause of failure1 There is interference on the periphery

Solution Re grounding

Fault phenomenon2 Abnormal temperature heating

cause of failure2 The heating output point of the computer board is broken

Solution Replace the relay of the computer board

Fault phenomenon3 Abnormal temperature heating

cause of failure3 Heating coil is broken, single pole switch trips

Solution Replace the heating coil and close the single pole switch

Fault phenomenon4 Abnormal temperature heating

cause of failure4 The voltage is unstable and the neutral wire is not properly connected

Solution Reconnect the neutral wire

Fault phenomenon5 Abnormal temperature heating

cause of failure5 The heating coil sometimes has electricity, sometimes has no electricity, and the AC contactor is not good

Solution Replace the AC contactor

Fault phenomenon6 Abnormal temperature heating

cause of failure6 The cooling water at the feeding port is opened too large

Solution After the cooling water valve at the feeding port is slightly reduced, it returns to normal

Fault phenomenon7 Abnormal temperature heating

cause of failure7 Intermediate temperature shock

Solution Too high back pressure or poor screw barrel

Fault phenomenon8 The nozzle temperature display can only reach a maximum of100℃

cause of failure8 The thermocouple was damaged after the nozzle leaked material, and this phenomenon occurred when replacing the thermocouple

Solution Replace the nozzle thermocouple with an insulated thermocouple (measured as open circuit with a multimeter between the two output terminals and the outer shielding layer), and the display is normal

Fault phenomenon9 No.3Duan Wenchong10About degree

cause of failure9 The machine barrel found that the check ring was broken, and only half of the circular ring remained

Solution Normal after replacement

Fault phenomenon10 The product has black spots

cause of failure10 On the parameter setting screen, it was found that the thermocouple selection is currently selected asJType, change itKThe temperature display after molding matches the actual measured temperature

Solution Adjust the temperature again, and after a period of cleaning, the product is normal

Fault phenomenon11 The temperature of the material barrel has been consistently high20ºCLeft and right, showing no heating

cause of failure11 The frequency converter controls the small card24The power line has fallen off

Solution Added a separate control card24Separate the power supply from the computer's power supply to solve the problem

Fault phenomenon12 Temperature Display777

cause of failure12 T1010transformer fault

Solution repair and replacementT1010

Fault phenomenon13 Temperature Display777

cause of failure13 The computer board is broken

Solution Repair or replace the computer board

Fault phenomenon14 Temperature Display888

cause of failure14 Thermocouple open circuit or reversed positive and negative connections

Solution Replace thermocouple or rewire

Fault phenomenon15 Temperature Display888

cause of failure15 The computer board is broken

Solution Repair or replace the computer board

Fault phenomenon16 Temperature Display999

cause of failure16 The temperature exceeds the maximum temperature that the computer can display（450Degree)

Solution Reduce the set temperature or eliminate heating faults

Fault phenomenon17 Temperature Display999

cause of failure17 Thermocouples collide with strong electricity

Solution Check the peripheral circuit

Fault phenomenon18 Temperature Display999

cause of failure18 The computer board is broken

Solution Repair or replace the computer board

warranty

New products are guaranteed for one year;For all products and projects that we repair or sell (old parts), we offer a three-month full warranty (i.e. we provide warranty for any type of malfunction during the warranty period). In case of special circumstances, we will communicate with you clearly before the repair. Let you understand and consume with peace of mind.

support

When both of us have already understood each other and you have a certain amount of transactions every month, during the maintenance period of your repair products, as long as we have the same model of finished products in stock, we can lend them to you for free until your repair products are repaired; Whether you have worked with us or not, if you have any technical issues, you can consult us for free by phone, and we will do our best to assist you in solving the problem.

Contact Information

Dongguan Kesichuang CNC Technology Co., Ltd

Phone:/

Fax:

Contact Person:Liusir/

Contact Person:WangMiss/

Office Address: Guoxin Commercial Building, Yunhe East Third Road, Nancheng, Dongguan City702room