2PAC Mafia
Member
Hi guys,
I´ve repaired a treadmill controller but it also has problems at incline circuit. Somebody tried to repair it before and I guess they replaced a burned resistor with not proper value. They put R55 with 100K value but with that value incline is not working, I simulate the motor at 1, 2, 3 with a 220Vac.
I´ve put a 330 ohm and it worked but after some seconds U4 (MOC3063) was damaged. Which would be the proper value and why U4 was damaged if it only activates gate triac?
I attach circuit. MOC3063 and SR2 are activated by the low voltage circuit.
I´ve repaired a treadmill controller but it also has problems at incline circuit. Somebody tried to repair it before and I guess they replaced a burned resistor with not proper value. They put R55 with 100K value but with that value incline is not working, I simulate the motor at 1, 2, 3 with a 220Vac.
I´ve put a 330 ohm and it worked but after some seconds U4 (MOC3063) was damaged. Which would be the proper value and why U4 was damaged if it only activates gate triac?
I attach circuit. MOC3063 and SR2 are activated by the low voltage circuit.