Installing and replacing the battery in the cpu, Battery installation, Battery replacement – Yaskawa MP3200iec User Manual
Page 26: Caution, 9 installation, Battery replacement procedure

9 Installation
24
YASKAWA America, Inc. MP3200iec Hardware Manual YAI-SIA-IEC-5
6. Hold the Optional Module at the top and bottom and pull it straight out. Hold the edges of the Module and avoid
touching the components on the Module.
Note: Put the Module that you removed into the bag that was supplied when you purchased it and store the Module in this bag.
Installing and Replacing the Battery in the CPU
Battery Installation
This Battery provides backup power for the SRAM data when the power supply to the MP3200iec Series CPU Unit is
turned OFF. The Battery provides backup power for the following data.
• Alarm history
• Calendar
• Retain Variables
Note: One Battery is provided with the CPU Unit. The Battery is not connected when the Unit is delivered.
Battery Replacement
When the total power OFF time exceeds 1 year, the voltage of the Battery will drop, and the BAT indicator on the CPU
Unit will light.
Replace the Battery within 2 weeks of when the BAT indicator first lights.
Battery Replacement Procedure
1. Back up the programs and data stored in the Basic Unit.
Note: The backup can be used to recover the data if the data accidentally gets deleted during Battery replacement.
2. Confirm that the RDY indicator on the CPU Unit is lit.
CAUTION
• Allow only qualified personnel trained in safety procedures to replace the Battery. Incorrect Battery
replacement may result in electric shock. Also, machine malfunction may occur, possibly resulting in injury or
machine damage.
• Replace the Battery only while power is supplied to the Basic Unit. Replacing the Battery while the power
supply to the Basic Unit is turned OFF may result in loss of the data stored in memory in the Unit.
• Do not touch the electrodes of the Battery. Static electricity may damage the electrodes.
• The Basic Module contains a lithium battery. When you replace the Battery, separate the used Battery from
normal waste and dispose of it according to all local ordinances.
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