YASKAWA GA500 series AC micro frequency converter

Check the insulation between the motor winding and cable, replace the driver, and verify the control signal for oC output short circuit, IGBT fault, and abnormal control circuit

STPo PM motor out of step, excessive load, tuning parameter error to reduce load, perform Auto Tuning again, adjust n8-45 (speed feedback gain)

Low UV input voltage, phase loss, MCCB trip detection of grid voltage, inspection of input wiring, troubleshooting of MCCB trip cause

3. Regular maintenance and disposal

(1) Regular maintenance project

Daily inspection (daily): operating status (no abnormal noise or vibration), indicator lights (no alarm), ventilation openings (no blockage);

Regular inspection (every 6 months): Wiring terminals (no looseness or overheating), cooling fan (normal rotation), capacitors (no bulging or leakage);

Replacement parts: The cooling fan has a service life of 2-5 years (depending on the model) and needs to be replaced according to the manual process to avoid poor heat dissipation.

(2) Storage and disposal

Storage requirements: ambient temperature -20 ℃~+70 ℃, humidity ≤ 95% RH, avoid direct sunlight, regularly power on (power on for 30 minutes every 3 months);

Scrap disposal: Follow the WEEE directive, classify and dispose of electronic components (such as capacitors, circuit boards) and metal casings, prohibit arbitrary disposal, and dispose of hazardous substances in accordance with local regulations.

Summary of Key Parameters (Core Commonly Used)

Parameter category, parameter number, parameter name, default value, adjustment scenario

Control mode A1-02: Select 0 (V/f) for high-precision control (OLV) and 5 (OLV/PM) for PM motor

Load Type C6-01: Normal/Heavy Load Select 0 (HD), Intermittent Load Select 1 (ND), Continuous High Load Maintain 0 (HD)

Acceleration and deceleration time C1-01 Acceleration time 1 1.0 If the startup impact is large, it will be extended, and if quick startup is required, it will be shortened

Acceleration and deceleration time C1-02 deceleration time 1 1.0 deceleration overvoltage will be extended, and if a quick stop is required, the braking resistor will be used to shorten it

Carrier frequency C6-02, carrier frequency selection 1 (2kHz). If the motor noise is high, it will increase, and if the heat dissipation is poor, it will decrease

Motor Protection L1-01 Motor Overload Protection: Select 0 (disabled) for multiple motor drives and 1-6 (suitable for load type) for single motors according to the control mode

Torque compensation C4-01: Torque compensation gain 1.00. If the low-speed torque is insufficient, it will increase, and if the vibration is reduced, it will decrease

Anti oscillation N1-02 anti oscillation gain 1.00 increases with motor vibration and decreases with insufficient torque