There will be some failures in the reflow soldering machine. Sometimes small faults require engineers to deal with, which is very troublesome and seriously affects production efficiency. At ordinary times, you need to pay attention to the maintenance of reflow soldering. How to solve the problem of reflow soldering machine? Now the company will talk about the five common faults and solutions for reflow soldering, so as to facilitate your reference and timely treatment.

1. The red light is on and the buzzer keeps ringing

Cause: The buzzer time relay does not work; the thermocouple is controlled to open; the main circuit SSR of the control section is damaged.

Solution: Check the control buzzer time relay; check the control thermocouple; check the main circuit SSR of the control section.

2. Does not start when the machine starts

Reasons: main power failure; control power failure; emergency stop switch reset.

Solution: Check the municipal power supply; check the control power supply; check the emergency stop switch.

3. The conveyor belt stops

Cause: The drive inverter is not powered; there is a problem with the inverter communication; the drive motor is not running; the drive chain is disconnected; the drive network is stuck by foreign objects.

Solution: Check whether the drive inverter has power supply; check the inverter communication; check the operation of the drive motor; check whether the drive chain is disconnected; check whether the drive network belt is stuck with foreign objects.

4. The reflow soldering machine does not heat, the system automatically enters the cooling state

Cause: The power transmission and transformation switch is not turned on; the heating switch is not turned on; the control SSR unipolar switch is not turned on; the SSR is damaged.

Solution: Turn on the air transport and transmission switch; turn on the heating switch; turn on the unipolar switch for SSR control; replace the SSR.

5. The device cannot be started during operation

Cause: The upper furnace body is not closed, the emergency switch is not reset, and the start button is not pressed.

Solution: Check the travel switch; check the emergency switch; press the start button.