Shanghai Sew Variable Frequency Inverter Alarm 15 Maintenance MDX61B0150-503--0T Technical Inquiry
Shanghai Sew Variable Frequency Inverter Alarm 15 - Internal 24V Power Supply, Immediate Stop, No Internal 24V Power Supply - 1. Check the input power of the controller.
The customer found online that our company's textile equipment uses a German SEW variable frequency inverter (model MDX61B). As soon as it is powered on, it alarms with a fault code: 15 - the inverter trips immediately upon startup. Restarting and trying numerous times has been ineffective, and the fault persists. The customer also had an electrician inspect it, who suggested it might be an internal wiring issue and recommended seeking professional repair services.
SEW Variable Frequency Drive Alarm Code Repair Explanation:
03 Ground Fault - Immediate Stop 1. External circuit grounding;
07 Braking Wave Breaker Fault - Immediate Stop: 1. Overheating of regenerative power.
08 Speed Monitoring Fault - Immediate Stop 1. Due to mechanical overload or phase power failure (VFC open-loop control).
09 Initialization Fault - Immediate Stop
1. Controller initialization not set or incorrect
1. Perform proper controller initialization.
10 IPOS Fault - Emergency Stop Incorrect Commands in Program
11 Overheating of Controller Emergency Stop Overheating of Controller 1. Reduce load; 2. Ensure sufficient cooling
12 14-bit Transformer with Rotation, Emergency Stop, 14-bit Counter Overflow, Define P3029 below 3000 RPM
13 Control Signal Source Failure - Immediate Stoppage
1. Undefined control signal source;
2. Incorrectly defined control signal source.
14 Encoder Failure - Immediate Stop 1. Incorrect encoder wiring or shielding connection error
15 Internal 24V Power Supply, Immediate Stop, No Internal 24V Power Supply, 1. Check the input power to the detection controller;
17-24 System Failure - Immediate Stoppage; Controller electrical components are affected by external interference. 1. Check if the shielding and ground are connected.
25 EEPROM Failure - Immediate Stoppage, EEPROM Failure Inside Controller
1. Restore to factory settings, reset, and initialize
