Main Control PCB - Coin Type - Battery Replacement - NGC

Introduction

This procedure shows you how to replace the coin battery on a NGC Main Processor.

Parts Required

LIR2032 or LR2032 Rechargeable Lithium-Ion coin cell battery

LIR2032 Material Safety Data Sheet

Electrical Safety

DANGER: Working with the electrical services required for CNC machines is extremely hazardous and can result in serious injury or death.

Before connecting line wires to the CNC:

Turn off all power to the machine at the source.
Perform a Lockout-Tagout (LOTO) procedure to ensure the power remains off during service.
Verify that power has been disconnected by using an AC voltage detector on all incoming lines.

If you are uncertain about how to safely disconnect power or perform LOTO procedures:

Do not proceed.
Contact qualified personnel or obtain appropriate assistance before continuing.

Failure to follow these precautions may result in electrical shock, equipment damage, or fatal injury.

Danger: Before beginning any work inside the control cabinet, verify that the High Voltage indicator light on the 320V Power Supply / Vector Drive has been off for a minimum of five (5) minutes. This waiting period ensures that residual voltage has dissipated and reduces the risk of electric shock.

Certain service procedures involve high-risk electrical components and may pose serious injury or fatality hazards. Technicians must not attempt any procedure unless they have a complete understanding of the steps involved and the associated risks.

If there is any uncertainty regarding a procedure, contact your Haas Factory Outlet (HFO) to arrange for a qualified service technician.

Snap In Battery - Removal

This procedure explains how to replace the coin battery using the snap-in battery holder.

Press lightly on the back end of the battery.

Caution: Battery holder [1] may get damaged if the battery is allowed to move during the next step.

Position a small flat screw driver underneath the battery on the side of the spring retainer and carefully pry underneath the battery to remove the battery.

Snap In Battery - Installation

Remove the protective film from the new battery.

Install the new battery, make sure the "+" symbol faces up.

Place one edge of battery into holder against metal spring retainer while pulling battery lightly into metal spring. Carefully press back end of battery down into holder past tabs.

Important: Do not replace the processor, if the battery holder tabs [1] are broken. Temporally hold the battery in place and apply hot silicon glue to secure the battery.

Set the machine date and time. Refer to the Next Generation Control - Date/Time Change procedure.

Note: Leave the machine powered on for at least 4 hours to recharge the battery. Failing to do so can cause the machine Date/Time to reset.

Sliding Battery - Removal

This procedure shows you how to replace the coin battery on a NGC Main Processor with the sliding coin battery holder. This procedure applies to new processors with the plastic enclosure.

Remove the battery door and screws.

The image on the left depicts a processor on a 15" LCD control, located on the back of the processor.

The right shows a 19" LCD NGC control, located on the front of the processor.

Slide the the battery holder out of its holding clip [1].

Caution: Battery holder may get damaged during installation if the battery is not secured properly.

Sliding Battery - Installation

Remove the protective film from the new battery.

Install the new battery, make sure the "+" symbol faces up [1].

Slide the battery holder into the battery clip until locked [2].

Note: Avoid contaminating the battery holder.

Re-install the battery cover.

Set the machine date and time. Refer to the Next Generation Control - Date/Time Change procedure.

Note: Leave the machine powered on for at least 4 hours to recharge the battery. Failing to do so can cause the machine Date/Time to reset.