Service Home How To Procedures Axis Drive Card - Replacement - AD0298
Last updated: 12/01/2018

Axis Drive Card - Replacement

AD0298

Applies to machines built from: January, 1989 to June, 1996

Introduction

This procedure tells you how to install an axis drive card in the control. 

The most common cause for a failed drive card is an electrical short in the axis motor or motor cable. Check for an electrical short in the system before replacing the drive card.

To do this procedure, you must have (1) of the kits listed in Parts Included.

The machine must have brush motors and a classic Haas control.

Document Applies to these Parts:
  • 93-1075A    DRIVE CARD, BRUSH (REV D)
  • 93-1076A    DRIVE CARD, BRUSH (REV FB)
  • 93-1077A    DRIVE CARD, BRUSH (REV F & ABOVE)

Electrical Safety

 Caution: When you do maintenance or repair on CNC machines and their components, you must always follow basic safety precautions. This decreases the risk of injury and mechanical damage.

  • Set the main circuit breaker to the [OFF] position.

  Danger: Before beginning any work inside the control cabinet the Spindle Drive must have been off for at least 60 seconds.

Some service procedures can be dangerous or life-threatening. DO NOT attempt a procedure that you do not fully understand. If you have any doubts about doing a procedure contact your Haas Factory Outlet (HFO) and schedule a service visit.

Axis Drive Card - Replacement

1

Put an identification label on each cable that is attached to the drive card. This makes the installation easier. Disconnect these cables.

Remove the drive card.

Install the replacement drive card.

Use your identification labels to connect the cables.