Name: GPF611S TOSHIBA
Price: 2655 CNY
Availability: InStock

Description

‌TOSHIBA GPF611S VFD – Common Fault Codes & Resolution Procedures‌

‌1. Critical Fault Indications‌

‌Fault Code‌	‌LED Status‌	‌Probable Cause‌	‌Immediate Actions‌
‌F05‌	Red LED + Audible Alarm	DC Bus Overvoltage (>800VDC)	1. Check input voltage (Allowable: 380VAC±15%) 2. Inspect regenerative resistor (≥500Ω @ 300W) 3. Extend deceleration time (Parameter C01-08)
‌F11‌	Red Flashing (1Hz)	Output Overcurrent (>150% rated)	1. Verify motor insulation (Megger ≥100MΩ @ 500VDC) 2. Check phase-to-phase resistance imbalance (<2%) 3. Disable unnecessary torque boost (A01-04=0)
‌F09‌	Red Steady	Heatsink Overtemperature (>85°C)	1. Clean air vents (40% blockage threshold) 2. Verify cooling fan operation (24VDC @ 0.18A) 3. Reduce carrier frequency (C02-01 ≤4kHz)

‌2. Performance Degradation Issues‌

‌Symptom‌: Motor vibration/hunting at low speeds

‌Solution‌:
1. Enable ‌Auto-Tuning II‌ (Procedures):
  - Set A01-00=1 (Rotational Auto-Tuning)
  - Press RUN for 10s until TUNE flashes
2. Adjust slip compensation (C03-05=1.5~2.0)
3. Verify encoder feedback (if used): PG card pulse loss ≤0.1%

‌Symptom‌: Intermittent communication loss (Modbus RTU)

‌Resolution Protocol‌:
mermaidCopy Code

graph LR A[Check RS485 Termination] --> B[Verify 120Ω resistor at last node] B --> C[Set Station Address (B01-01≠0)] C --> D[Confirm Baud Rate (B01-02=19200)] D --> E[Ground Shield at Drive End Only]

‌3. Hardware Failure Diagnostics‌

‌Component‌	‌Test Method‌	‌Pass Criteria‌
‌DC Bus Capacitors‌	Capacitance meter (discharged!)	≥90% of 2200μF nominal
‌IGBT Modules‌	Diode test mode (DMM probes): – P/+ to U/V/W – N/- to U/V/W	Forward: 0.3-0.7V Reverse: OL
‌Cooling Fan‌	Amperage check at connector CN5	0.18A±10% @ 24VDC

Safety Notice‌: Wait ≥5 minutes after power-off and measure DC bus voltage (<25VDC) before touching components.

‌4. Reset & Recovery Sequence‌

‌Non-Latching Faults‌ (e.g. F04 Underload):
- Press STOP/RESET key for 2 seconds
‌Latching Faults‌ (e.g. F11 Overcurrent):
- Cycle control power (≥30 seconds off)
- Initialize parameters: Hold PROG + DATA/ENTER during power-up
‌EEPROM Corruption‌ (Blank display):
- Reload firmware via Service Port (JTAG adapter TOS-SVC-611 required)

‌5. Preventive Maintenance Schedule‌

‌Interval‌	‌Task‌	‌Standard‌
Quarterly	Torque terminal screws	Main circuit: 2.0 N·m Control: 0.5 N·m
Annually	DC bus precharge resistor check	Resistance: 47Ω ±10% (P/N G9SXA-P47)
30,000 hrs	Electrolytic capacitor replacement	Use only Nichicon UHW series or OEM equivalent

‌6. Critical Configuration Checks‌

‌Motor Compatibility‌:
- Set A02-01 (Motor Poles) correctly (2/4/6/8)
- A02-02 (Rated Current) ≤ Drive’s rated output
‌Braking Unit Settings‌:
- DC bus threshold C06-01=760V (for 400V class)
- Braking duty cycle C06-03 ≤ 10% (continuous)

GPF611S PDF

gpf611s

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