Industrial AC Drive Start Up Tips

Here are some tips to help you with an industrial AC drive start up.

Before You Start

• VFDs are mounted in an appropriate environment and required input circuit protection.
• Install all electrical conduit, if needed, prior to the AC drive start up
• The electrical in/out 3Ø power cable have been pulled and are terminated onto VFDs.
• The AC motors are mounted and are uncoupled from the load, if possible, to facilitate an auto tune of the VFD with access to the motor name plate data.
• The communication signals are pulled and are near the field connection terminals on the VFD.

AC Drive Start Up Steps

• Verify the drive model number to ensure it’s the correct model
• Ensure the area surrounding the drive complies with specifications
• Verify that the drive is properly sized to run the motor
• Confirm there is proper circuit protection as specified by national and local code
• Properly wire drive terminals R/L1, S/L2, T/L3 & R/T1. V/T2, W/T3 and control wiring
• Properly ground the drive and tighten control and grounding terminal according to specification
• Program the VFD according to the motor nameplate data and customer’s expectations
• Perform Auto-Tune based on control mode and other operating conditions.
• Verify rotation.

Innovative-IDM is an Authorized Service Provider and Distributor for Yaskawa VFDs. When we do your Yaskawa AC drive start up, you receive an additional year on your Yaskawa factory warranty — a total of two years.

If you have a drive that needs to be repaired, we can help you with that, too. If I can be of any help to you, email me and I’d be glad to walk you through whatever I can. If you’re not using VFDs, you could end up like Lucy in the candy factory.

Juan Silva is a field service technician out of our Houston store. You can reach him at [email protected].