one. Conditions necessary to repair 530SE controller:
1. A small power regulator;
2. One 530SE controller base;
3. Refer to the internal wiring of Riello G20 to make a maintenance test bench;
4. One MF-47 multimeter;
5. A 30W internal heating electric soldering iron;
6. Used to replace frequently damaged components such as power tubes, triodes, diodes, Zener tubes, bridge stacks, flat resistance wires, varistors, etc.;
7. A set of common tools;
two. 530SE controller common faults and troubleshooting methods:
From the analysis of the structure of the controller and the circuit of the controller, the 530SE is the simplest of all Riello controllers, so the range of faults is small and easy to eliminate. A common failure is misfire.
1. When there is a phenomenon of misfire, first open the controller shell, and use the observation method to observe whether the internal components and circuit boards of the controller have burnt marks. One of the most common burnt devices is that the varistor is burned out {replacement}, and the other is that the flat resistance wire is blown. Blowout of the flat resistance wire often occurs. Sometimes the controller can return to normal as long as it is re-wound, and sometimes it is blown after re-winding. Blown flat resistance wires and damaged power tubes account for about 60% of 530SE controller repairs.
2. If there are no scorching marks on the internal components and circuit boards of the controller, check whether the controller has L supply. The 530SE control power supply is connected to pin 6 through internal contacts from pin 3 (N) and pin 5 {L}, and pin 6 is the motor power supply. When the motor is powered on, the motor works and generates 50 volts of AC voltage through pin 7, The type resistance wire is sent to the control circuit. Therefore, first use a multimeter to measure whether there is 220V at pin 3 (N) and pin 5 {L}, if there is no voltage, it means that there is a problem with the external power supply, and then measure whether there is 220V at pin 3 (N) and pin 6 {L} , if there is no voltage, it means that there is a problem with the internal contact. Common faults include poor contact or open circuit of the contact. The former only needs to be lightly polished with fine sand, while the latter needs to reshape the contact reed to make good contact.
3. After pin 6 is electrified, if it still does not ignite, you should check the power supply of the control circuit. Use a multimeter with DC 50 volts to measure whether there is DC voltage output at the positive and negative poles of the bridge stack. The common failure is generally that the bridge pile is damaged, and it can return to normal after replacement.
4. If it still does not ignite, it means that there is a problem with the rear stage of the control circuit and the ignition transformer. Because the failure rate is low, it is no longer analyzed.
5. Note: If you are proficient in the above maintenance methods, 85% of 530SE controllers can be restored quickly. If you still want to improve the repair rate, you must work hard on electronic circuits and replace foreign components with domestic components. Only in this way can we go to the next level.
one. Conditions necessary to repair 530SE controller:
1. A small power regulator;
2. One 530SE controller base;
3. Refer to the internal wiring of Riello G20 to make a maintenance test bench;
4. One MF-47 multimeter;
5. A 30W internal heating electric soldering iron;
6. Used to replace frequently damaged components such as power tubes, triodes, diodes, Zener tubes, bridge stacks, flat resistance wires, varistors, etc.;
7. A set of common tools;
two. 530SE controller common faults and troubleshooting methods:
From the analysis of the structure of the controller and the circuit of the controller, the 530SE is the simplest of all Riello controllers, so the range of faults is small and easy to eliminate. A common failure is misfire.
1. When there is a phenomenon of misfire, first open the controller shell, and use the observation method to observe whether the internal components and circuit boards of the controller have burnt marks. One of the most common burnt devices is that the varistor is burned out {replacement}, and the other is that the flat resistance wire is blown. Blowout of the flat resistance wire often occurs. Sometimes the controller can return to normal as long as it is re-wound, and sometimes it is blown after re-winding. Blown flat resistance wires and damaged power tubes account for about 60% of 530SE controller repairs.
2. If there are no scorching marks on the internal components and circuit boards of the controller, check whether the controller has L supply. The 530SE control power supply is connected to pin 6 through internal contacts from pin 3 (N) and pin 5 {L}, and pin 6 is the motor power supply. When the motor is powered on, the motor works and generates 50 volts of AC voltage through pin 7, The type resistance wire is sent to the control circuit. Therefore, first use a multimeter to measure whether there is 220V at pin 3 (N) and pin 5 {L}, if there is no voltage, it means that there is a problem with the external power supply, and then measure whether there is 220V at pin 3 (N) and pin 6 {L} , if there is no voltage, it means that there is a problem with the internal contact. Common faults include poor contact or open circuit of the contact. The former only needs to be lightly polished with fine sand, while the latter needs to reshape the contact reed to make good contact.
3. After pin 6 is electrified, if it still does not ignite, you should check the power supply of the control circuit. Use a multimeter with DC 50 volts to measure whether there is DC voltage output at the positive and negative poles of the bridge stack. The common failure is generally that the bridge pile is damaged, and it can return to normal after replacement.
4. If it still does not ignite, it means that there is a problem with the rear stage of the control circuit and the ignition transformer. Because the failure rate is low, it is no longer analyzed.
5. Note: If you are proficient in the above maintenance methods, 85% of 530SE controllers can be restored quickly. If you still want to improve the repair rate, you must work hard on electronic circuits and replace foreign components with domestic components. Only in this way can we go to the next level.