Shandong Shengya Machinery Co., Ltd. specializing in the production of various types of brick, brick machine, brick machine, hollow brick, pavement brick and other equipment of the old brick factory.
    Cement brick sent to board aircraft can not move, check the phenomenon: press "send trigger" button and send the board can not feed, touch screen failure prompt screen displays the following 'mask is not the upper limit position or proximity switch is damaged, sent to board can not move forward'.
  1-1 Cause: mask did not rise to the upper limit position or the upper limit position sensor switch is not sensitive to the induction of iron, mask upper limit of the proximity switch is damaged, the proximity switch line is disconnected or loosened, PLC input terminal damage. (Note: When installation equipment, sent to board retreat Tubing wrong or retreat two proximity switches wiring errors also occur sent to board can not move.)
Remedy: If the mask is not raised position, the mask can be raised to the upper limit position. If the mask is close to the upper limit, check the limit switch indicator, and then check the port on a touch screen monitor to see if the display mask cap proximity switch in working condition. Re-examine the various possibilities one by one, one by one investigation, troubleshooting.
1-2 Check Symptom: No fault prompts on the touch screen, control solenoid valve sent to board retreat indicator 'YV9''YV10' is not on, it does not display the pressure gauge.
When this problem occurs, follow these steps to check:
① Check PLC input and output terminals of the indicator, if the input light is off, there is no input voltage, which may be the following reasons:
Cause: The operation buttons damage, input line is disconnected or loosened, PLC input terminal damage.
Remedy: In this case, press the "send-plate" or "sending bricks back" button, the input terminal corresponding light is off, if the input voltage across the terminals of the COM did not, may damage the operation button or input line disconnected or loose; if the input voltage across the terminals of the COM, the input terminal may damage the PLC. Use universal form one investigation, we found the problem after the corresponding problem.
② Check PLC input and output terminals of the indicator, the indicator can be lit if the input voltage is normal, the output terminal of the indicator is not lit, no output voltage, which may be the following reasons:
Cause: PLC output terminal burned.
Remedy: In this case, press the "send-plate" or "sending bricks back" button, check PLC input and output terminals, PLC related input, no output, the output terminal of light is not on. Such circumstances require repair or replacement PLC.
③ Check PLC input and output terminals of the lamp can be lit, the input and output voltage is normal, small relay of light is not on, it may be the following reasons:
Cause: The line fault relay loose or damaged, the relay circuit board damage.
Remedy: When this case, press the "send-plate" or "sending bricks back" button, PLC input and output indicator light, but a small relay corresponding indicators do not light up. According to the investigation the appropriate line circuit diagram and relay and circuit board, and then troubleshoot accordingly.
④ Check PLC input and output terminals of the lamp can be lit, the input and output voltage is normal, small relay indicator can light, but the indicator solenoid coil can not be bright, it may be the following reasons:
1. Cause: Disconnect from the circuit board to the control circuit coil plug.
Remedy: Check control lines.
2. Cause: plug connector solenoid valve on the loose or damaged.
Remedy: If you loose wiring securely connected to the wiring; if wiring is good, with the text can table to check the plug, you can replace it if burned.
1-3 Check Symptom: No fault prompts on the touch screen, control indicator solenoid valve sent to board on energy light, does not show a pressure gauge, check the solenoid coil plug voltage is normal.
Causes 1. Failure: cement brick hydraulic system has no pressure, or pressure is too small.
Remedy: If it is such a reason, usually accompanied by a problem other action occurs. So check the pressure of the pump, and then troubleshoot accordingly. If large pump system pressure is normal, then the following steps to check.
2. Failure Cause: electro-hydraulic valve damage.
Remedy: Remove the electro-hydraulic valve to check to see the inside of the valve member and the valve spring if there are anomalies. Remove the valve inspection; if you can not be repaired, only to be replaced.
3. Failure Cause: sent to board the cylinder piston damage, the fuel tank cylinder wear and serious.
Remedy: If this is the reason, then sent to board if you remove the oil tube can be found within the tubing, the normal flow of hydraulic oil. Remove the fuel tank can repair or replace the cylinder.
1-4 checking phenomenon: no touch screen on the cement brick fault tips, send the control panel indicator light on the solenoid valve, pressure gauge shows the pressure, but no hydraulic tubing.
1. Cause: solenoid valve coil burned, the solenoid valve can not change direction.
Remedy: replace the solenoid coil. Observe whether the electromagnetic valve spool pull? After the solenoid coil plug pulled, press "send-plate" or "sending bricks retreat" is, and then to the top of the valve when the screwdriver, sent to board aircraft can action, you can confirm the solenoid valve solenoid coil. (Or detection coil resistance with a multimeter, further judgment.)
2. Failure Cause: electro-hydraulic valve blockage.
Remedy: If the electro-hydraulic valve spool main card, this time may not be sent to board aircraft tubing hydraulic oil flow-through or flow is very small. Such as solenoid valve with a screwdriver to poke the spool, the spool does not move, the valve may be stuck. Electro-hydraulic valve can be removed, clean diesel electro-hydraulic valve. If you can not be repaired, replace the valve.
1-5 checking phenomenon: no touch screen on the cement brick fault tips, send indicator control solenoid valve plate on the light, pressure gauge shows the pressure, tubing pressure, but sent to board no return or refund can not enter.
1. Failure: a foreign body stop the pallets sent to board.
Remedy: Check cement brick sent to board the troubleshooting.
2. Cause: electro-hydraulic valve spring broke.
Remedy: Remove the electro-hydraulic valve inspection, maintenance or replacement.
3. Failure Cause: sent to board the cylinder piston damage.
Remedy: Remove the fuel tank repair or replace the cylinder.
Shandong Shengya Machinery Co., Ltd. has been committed cement products machinery development, production and sale of advanced equipment, superb technical expertise and two decades of experience, the company has always been at the forefront of research and development center block molding machine market development Follow the advanced technology at home and abroad, to develop products for different investment needs of users, mainly block making machine, hydraulic tile machine, cement pipe machine, mixer, hanging roller machine, telephone poles machine equipment. At present the country with 19 offices and six overseas plants (Nigeria, Tanzania, Algeria, Kenya, Mozambique, Ethiopia) and exported more than 100 countries and regions.