Industrial Elevator Door Controller with Adjustable Voltage 220V-380V

Frequently Asked Questions

Q1: What is the function of a VFD?

A1: A VFD controls the speed and frequency of an electric motor, widely used in industrial control, automation systems, and pump systems.

Q2: What is the quality of your VFDs?

A2: Our VFDs pass IEC testing and hold CE certification. Each unit undergoes four tests before delivery, adhering to ISO 9001 standards. We provide high-quality VFDs.

Q3: What is the delivery time?

A3: Please contact our sales team with your requirements, and we will provide the delivery schedule.

Q4: How do I select the right VFD for my machine?

A4: Send us your machine specifications, and we will recommend the most suitable model.

Q5: Do you offer OEM services?

A 5: Yes, for certain items, we have a minimum order quantity.

For further inquiries, feel free to send us a request anytime!

6. Q: How to place an order?
A: Step 1: Provide the model name or link and quantity required;
Step 2: We will prepare a Proforma Invoice (PI) for order confirmation;
Step 3: Once everything is confirmed, payment can be arranged;
Step 4: Finally, we deliver within the scheduled timeframe.

7. Q: When is delivery?
A: Delivery Times
- Sample Orders: 1-3 days after full payment received.
- Stock Orders: 3-7 days after full payment received.
- OEM Orders: 12-20 days after deposit received.

8. After-Sales Service
1-year warranty for all frequency converters;
If you discover any defective components upon receipt, contact us immediately. We will provide new parts
for free replacement in your next order upon confirmation. As an experienced manufacturer, you can trust our quality and
after-sales service. (If packaging is damaged, refuse to sign for the shipment)

9. What Services Do We Offer?
Accepted Delivery Terms: FOB, CFR, CIF, EXW, CIP, FCA, Express Delivery;
Accepted Currencies: USD, EUR, CAD, AUD, HKD, GBP, CNY;
Accepted Payment Methods: Wire Transfer, Letter of Credit, PayPal, Western Union, Cash, Escrow;
Shipping Methods: DHL, UPS, EMS, FedEx, TNT, Air Freight, Sea Freight, Rail Transport.