Servo Amplifier - Replacement

Applies to machines built from: 
July, 1996
AD0280 Rev B

Electrical Cabinet - Servo Amplifier - Replacement - Introduction

This procedure tells you how to remove a servo amplifier and install a smart servo amplifier.

If you replace a servo amplifier that was made before 2007, refer to PCB Auxiliary (AUX) Load - Replacement.

Safety Notes
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.

Do these steps before you do work in the machine or in the control cabinet:
  • Set the main circuit breaker to the OFF position.
  • Use an approved lock with an approved safety tag. Always follow lock-out procedures in accordance to local government rules.
  • After turning off the machine, wait at least 5 minutes before working in the control cabinet, to allow power to dissipate. Wait for the voltage indicator LED on the vector drive to go off completely.
  • Always turn off the main air supply when you work on any part of the pneumatic system.
  • Make sure to rest the spindle head on a block of wood when work is done on a vertical axis. This will prevent any unintended movement that could result in the axis falling.
  • Never alter any safety circuits on the machine.
You should not do machine repair or service procedures unless you are qualified and knowledgeable about the processes. Serious damage to the machine components can result in costly repairs. The service technicians at your Haas Factory Outlet (HFO) have the training and experience, and are certified to do these tasks safely and correctly. The repair and service work performed by your HFO is protected with a limited warranty.
danger: 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.

Prerequisites

Do this procedure with (1) of the kits listed in Parts Included:

Parts Included

93-32-5549
QTY: 1
AMP, 90A BL SMART
93-32-5550J
QTY: 1
AMP, 30A BL SMART
93-32-3551J
QTY: 1
AMP, 45A BL SMART
93-32-5552C
QTY: 1
AMP, 60A BL SMART

Electrical Cabinet - Servo Amplifier - Replacement

Step 1

Push POWER OFF.

Set the main circuit breaker to the OFF position.

Lock the main circuit breaker. Use an approved lock with an approved safety tag.

danger: If the voltage indicator light is on, do not touch the electrical components. The high voltage in the electrical cabinet can kill you. Wait for the voltage indicator LED to go off fully.

Step 2

Disconnect the cables from the used servo amplifier. Remove the used servo amplifier.

Install the replacement smart servo amplifier [1].

Connect the current command [2] cable.

Connect the servo cables [3]. The cables are color-coded.

Connect the high-voltage jumpers [4] to the terminals on the adjacent servo amplifier.

Be aware: Many service and repair procedures should be done only by authorized personnel. The service technicians at your Haas Factory Outlet (HFO) have the training, experience, and are certified to do these tasks safely and correctly. You should not do machine repair or service procedures unless you are qualified and knowledgeable about the processes.

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

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