Q&A

 

QUALITY OF LIFE

 

  plastic &

rubber  

industry  

Drying & Dehumidifying System

◆ Hopper Dryer

1.Temperature is NOT going up or did not reach required value.


Ans.: 1. Check if there is any air leakage of unit. 2. Check if Fan motor is running in correct direction and if the Iron net is stocked. 3. Check if Heater and thermocouple is ok, and use Device to get Electrical current value. 4. Check if there is resin gathering around Right side of unit and inside dust collector chamber. 5. Check if Contactors, temperature controllers, EGO, and Thermocouple is OK.




2.Material was not dried completely.


Ans.: 1-1 Check Air volume of Fan Motor from its 90 degrees Outlet port.
1-2 Check if Electrical current and resistance of Heater is Normal.
1-3 Check if Both Temperature Indicators, Up and down, share Same value. And also check if Frequency of ON/OFF is Normal.
1-4 Check if there is Spreader Cone inside Drying Chamber of unit.
2. Hopper Dryer is NOT Fulfilled with Material.
3. Check if there is any air leakage of the unit.
4. If possible, please try another brand of Material to check if our unit is working OK.
4-1Setting temperature is not High enough, please increase it. ( For example, ABS sets at 80℃, try to increase to 85℃, 90℃, and so on. and Ensure Material is not gathering together cause of High Temperature.)
4-2 Drying time may be Not long enough, please increase drying time.
4-3 Special Material, pellet is tiny and dense, we would suggest to have a special device to ensure material is dried completely and loading in orders.




3.Fan Motor is Faulty.


Ans.: 1. Check if Capacitors and Wiring are Burned.
2. Check if Voltage of Factory is Normal and Stable. This is because Differences between 3 Phases of Voltage would also damage the unit.




4.Electric leakage


Ans.: Check if Wirings of Fan Motor, Heater, and inside control box are in good condition, not damaged or peeled, because this would lead Electric to steel cover to cause Electric leakage.




5.Temperature is Going up and down in Huge differences.


Ans.: Set Temperature to do Automatic calculation or Adjust PID value manually.




6. Thermocouple is faulty.


Ans.: You would see ① Indicator of SB is ON and ② Displayed FFF or - -




7.Temperature keeps going UP and not stopping.


Ans.: Positive and Negative Pole of Thermocouple are not connected correctly.
Positive Pole connects RED wires.
Negative Pole connects BLUE wires.




8.No Temperature.


Ans.: Check if Power cable is damaged or broken.
Motor overload protector triggered.




9.Smoke from Heater.


Ans.: 1.Check if Switch of Fan Motor is connected correctly.
2.Check if lack phase of Motor. Lack phase of Motor would lead Motor is Not Running although switch of Fan Motor is ON. And Heating is ON to lead smoke.




10.Indicators are OFF.


Ans.: 1. EGO protector triggered.
2. OP protector triggered.
3. Replace with New lamps.





◆ Dehumidifying Dryer

1.Unable to dehumidify. (Unstable dew-point)


Ans.: 1. Check both of Dehumidifying dryer and Hopper dryer if they are suitable.
2. Check both of DHM (DHC) and HD if they have air leakage.
3. Check if the raw material contains oil or added.
4. The function of desiccant and honey comb rotor is unstable for dehumidify or regeneration.
5. Evaporator blocked, heating element fault or regeneration temperature is too low.




2.Rotation error.


Ans.: Check the spares of PU-TR, timer 60M x 12S, PU-NC, SENSOR, compressor air source…etc. Check it step by step to solve the failure.




3.Overheat


Ans.: It may EGO error or breakdown. Thermal bar poor assembling and poor contact causes overheat of temperature controller and SSR failure.




4.Regeneration temperature unstable.


Ans.: To replace temperature controller, auto computing and adjust PID.




5.High temperature of regenerative air.


Ans.: Check cooling water, filter, evaporator and cooler.





Loading & Conveying System

◆ Auto Vacuum Loader

1.Unable or less / little to suction.


Ans.: 1. Adjust the air damper of stainless suction probe.
2. Clean or replace the paper filter.
3. Check the air hose of auto-loader is whether damaged.
4. Examine the limit switch, contactor overload, timer, and motor running well or damage.
5. The belt of blower for TC-6 Loader is loosen or broken.
6. Check the tube or material hose is plugged.
7. Power insufficient.




2.TAE SERIES – unable to start. (normal operation)


Ans.: IC board malfunction to cause the line. # ③ & ④ discounted.
PS. OL – Motor overload, PS - no carbon brush.




3.TAF SERIES – suction material only once.


Ans.: Check the Limit Switch disconnected.




4.TAF can power on but no START function.


Ans.: IC board or buzzer breakdown to cause the IC board malfunction.




5.The hoper do suction material but be unable falling down material.


Ans.: 1.If suction hopper equipped on the hopper dryer and find the plugged of air outlet of hopper dryer, cause the material is unable to fall by pressure increasing.
2.Happen the static. (must do grounding)
3.Find the bridge or suction full of material in the suction hopper. (please reserve enough space)





Dosing & Mixing System

Our Achievements

SOWN Board Member


SOWN seeks Board Members who:

  • Want to make a difference
  • Desire to network with other professionals
  • Are looking to engage in strategic planning and policy discussions
  • Desire an opportunity to plan SOWN’s success
  • Will attend five meetings per year
  • Have financial, accounting, and/or legal expertise
  • Have marketing and social media skills
  • Have experience in healthcare-related fields
Contact: Marypat Tracy Phone: 215-487-3000 x12 Email: mptracy@sown.org




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Facilitate peer support groups for older women throughout Philadelphia. Ongoing groups meet in senior housing buildings, community centers, and other neighborhood locations. This is an opportunity to engage older women in meaningful discussions on a weekly basis, and to share in the power of support. The minimum time commitment is two hours per session, twice monthly. Group facilitators will receive training, a manual, and ongoing leadership mentoring. Contact: Patty Davis Phone: 215-487-3000 ext. 25 Email: pattydavis@sown.org





Cooling & Heating System

Our Achievements

SOWN Board Member


SOWN seeks Board Members who:

  • Want to make a difference
  • Desire to network with other professionals
  • Are looking to engage in strategic planning and policy discussions
  • Desire an opportunity to plan SOWN’s success
  • Will attend five meetings per year
  • Have financial, accounting, and/or legal expertise
  • Have marketing and social media skills
  • Have experience in healthcare-related fields
Contact: Marypat Tracy Phone: 215-487-3000 x12 Email: mptracy@sown.org




Group Facilitator


Facilitate peer support groups for older women throughout Philadelphia. Ongoing groups meet in senior housing buildings, community centers, and other neighborhood locations. This is an opportunity to engage older women in meaningful discussions on a weekly basis, and to share in the power of support. The minimum time commitment is two hours per session, twice monthly. Group facilitators will receive training, a manual, and ongoing leadership mentoring. Contact: Patty Davis Phone: 215-487-3000 ext. 25 Email: pattydavis@sown.org





Granulating & Recycling System

◆ Hopper Dryer

1.Temperature is NOT going up or did not reach required value.


Ans.: 1. Check if there is any air leakage of unit. 2. Check if Fan motor is running in correct direction and if the Iron net is stocked. 3. Check if Heater and thermocouple is ok, and use Device to get Electrical current value. 4. Check if there is resin gathering around Right side of unit and inside dust collector chamber. 5. Check if Contactors, temperature controllers, EGO, and Thermocouple is OK.




2.Material was not dried completely.


Ans.: 1-1 Check Air volume of Fan Motor from its 90 degrees Outlet port.
1-2 Check if Electrical current and resistance of Heater is Normal.
1-3 Check if Both Temperature Indicators, Up and down, share Same value. And also check if Frequency of ON/OFF is Normal.
1-4 Check if there is Spreader Cone inside Drying Chamber of unit.
2. Hopper Dryer is NOT Fulfilled with Material.
3. Check if there is any air leakage of the unit.
4. If possible, please try another brand of Material to check if our unit is working OK.
4-1Setting temperature is not High enough, please increase it. ( For example, ABS sets at 80℃, try to increase to 85℃, 90℃, and so on. and Ensure Material is not gathering together cause of High Temperature.)
4-2 Drying time may be Not long enough, please increase drying time.
4-3 Special Material, pellet is tiny and dense, we would suggest to have a special device to ensure material is dried completely and loading in orders.




3.Fan Motor is Faulty.


Ans.: 1. Check if Capacitors and Wiring are Burned.
2. Check if Voltage of Factory is Normal and Stable. This is because Differences between 3 Phases of Voltage would also damage the unit.




4.Electric leakage


Ans.: Check if Wirings of Fan Motor, Heater, and inside control box are in good condition, not damaged or peeled, because this would lead Electric to steel cover to cause Electric leakage.




5.Temperature is Going up and down in Huge differences.


Ans.: Set Temperature to do Automatic calculation or Adjust PID value manually.




6. Thermocouple is faulty.


Ans.: You would see ① Indicator of SB is ON and ② Displayed FFF or - -




7.Temperature keeps going UP and not stopping.


Ans.: Positive and Negative Pole of Thermocouple are not connected correctly.
Positive Pole connects RED wires.
Negative Pole connects BLUE wires.




8.No Temperature.


Ans.: Check if Power cable is damaged or broken.
Motor overload protector triggered.




9.Smoke from Heater.


Ans.: 1.Check if Switch of Fan Motor is connected correctly.
2.Check if lack phase of Motor. Lack phase of Motor would lead Motor is Not Running although switch of Fan Motor is ON. And Heating is ON to lead smoke.




10.Indicators are OFF.


Ans.: 1. EGO protector triggered.
2. OP protector triggered.
3. Replace with New lamps.





◆ Dehumidifying Dryer

1.Unable to dehumidify. (Unstable dew-point)


Ans.: 1. Check both of Dehumidifying dryer and Hopper dryer if they are suitable.
2. Check both of DHM (DHC) and HD if they have air leakage.
3. Check if the raw material contains oil or added.
4. The function of desiccant and honey comb rotor is unstable for dehumidify or regeneration.
5. Evaporator blocked, heating element fault or regeneration temperature is too low.




2.Rotation error.


Ans.: Check the spares of PU-TR, timer 60M x 12S, PU-NC, SENSOR, compressor air source…etc. Check it step by step to solve the failure.




3.Overheat


Ans.: It may EGO error or breakdown. Thermal bar poor assembling and poor contact causes overheat of temperature controller and SSR failure.




4.Regeneration temperature unstable.


Ans.: To replace temperature controller, auto computing and adjust PID.




5.High temperature of regenerative air.


Ans.: Check cooling water, filter, evaporator and cooler.





YANN BANG
ELECTRICAL MACHINERY CO., LTD.

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