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Precision Zone – Yaskawa CIMR-G7 Series Inverter Static Check in Chicago & Wheeling

At Precision Zone, located in Wheeling near Chicago, we specialize in diagnostics, troubleshooting, and repair for Yaskawa G7 series general-purpose inverters. In this video, Rob explains how to perform a static check on the CIMR-G7 series inverters, ensuring safe troubleshooting and preventative maintenance.

Step-by-Step Static Check for Yaskawa CIMR-G7 Inverters:
✔ Step 1: Verify DC Bus Discharge

Before performing any checks, ensure the unit is fully discharged to prevent electrical shock and internal component damage.
Use the two terminals along the strip for quick and easy access to the DC bus.
✔ Step 2: Check Resistance Between Ground & Input/Output Phases

Each input/output phase should be completely isolated from ground.
Any resistance reading could indicate a potential issue within the drive.
✔ Step 3: Perform a Diode Check on Input & Output Modules

Use a digital multimeter with diode checking capabilities.
Negative probe on the positive DC bus terminal → Positive probe on R (L1), S (L2), T (L3), U, V, and W.
Reverse the leads – Place the positive probe on the negative DC bus terminal and test each input and output phase.
Readings may vary depending on the drive capacity, but the difference between output readings should not exceed 10%, same for input readings.
💡 If issues are detected or additional troubleshooting is required, contact our team at Precision Zone for expert support.

Precision Zone Services in Chicago & Wheeling:
✅ Yaskawa CIMR-G7 drive repair & diagnostics
✅ Servo motor and industrial automation repair
✅ Power supply and encoder repair services
✅ Custom testing and component-level repair before return

📞 For expert repair guidance or more information, call Precision Zone at (800)-551-4420 or visit www.precisionzone.net.

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