Industrial Repairs in Shiraz: PLC, Drive and Industrial Electronics

When a production line, a well pump or an elevator stops because of one burnt board, every hour costs money. Aali Electronic, together with Arshid Solar in Shiraz, repairs PLCs, drives (industrial inverters / VFDs), servo drives, HMIs, industrial power supplies and industrial electronic boards — with component-level diagnosis, a test before delivery and the cost announced before work starts.

Online repair request: send the device details and the problem on WhatsApp, or use our repair request form (Persian), and our technicians will call you.

Is your industrial equipment down?

Send the model from the nameplate, the error code and a photo of the board; we tell you whether and how fast it can be repaired.

WhatsApp +98 912 706 2789Call +98 71 9000 7011

PLC repair

PLCs usually fail because of the power supply, I/O cards, voltage surges or humidity — rarely the CPU itself. We trace the fault down to the component:

  • PLC does not power up, SF/ERR or STOP light on, or keeps resetting
  • Faulty digital and analogue I/O cards, output relays and output transistors
  • Faulty internal power supply and 24 V panel supply
  • Lost communication with HMI, network (RS485, Profibus, Ethernet) or PC
  • Common brands: Siemens (S7-200, S7-300, S7-1200, LOGO), Delta, LS, Fatek, Omron, Mitsubishi

Hardware repair does not affect the PLC program; still, keep a backup of the program before sending the unit.

Drive (VFD) repair

  • Over Current, Over Voltage, Under Voltage, Over Heat and Ground Fault errors (OC, OV, LV, OH, GF)
  • Burnt IGBT modules, input diode bridge and DC-bus capacitors
  • Faulty control board, gate-driver board, fan and keypad
  • Elevator drives, agricultural well-pump drives and solar pump drives
  • Servo drives and DC drives
  • Common brands: Delta, LS, Siemens, Schneider, Danfoss, ABB, INVT and elevator drives

Many drive faults come from outside the drive (motor, cable, heavy load). Before replacing a drive we also check the motor cable and insulation, so the repaired drive does not burn again.

Other industrial boards and devices

  • Control boards of production machines; switching and 24 V industrial power supplies
  • Industrial HMIs and touch panels (power, backlight, communication)
  • Industrial chargers and rectifiers, stabilizers and industrial UPS
  • Solar pump controllers and solar charge controllers
  • LED drivers of floodlights and industrial lights (when economical)