Delta AX-3 Series, Operation Manual

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C h a p t e r 3 I n s t a l l i n g H a r d wa r e a n d G e t t i n g S t a r t e d
3 - 3
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3.1.2 Installing and Replacing a Button Cell Battery
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Installation
The real-time clock (RTC) cannot work unless the battery power is properly supplied. The AX-3 Series PLC does
NOT include the battery when it leaves the factory. You need to purchase and install the CR1620 3V battery
beforehand. And before installing the battery, you must get rid of the static electricity in the body by touching the
grounded metal or you can wear antistatic gloves to avoid the static electricity.
The first-time battery installation can be done whether the AX-3 Series PLC is powered on or off. After installation,
you can set the RTC through DIADesigner-AX. Follow the steps below for installing a battery.
1. Pull out the battery holder from the AX-3 Series PLC with the tip of a screwdriver at the concave part of the
battery compartment as shown below.
2. Put the CR1620 3V battery in the battery holder in the direction indicated by the arrow below.
3. After putting the battery in the battery holder, push the battery holder back into the AX-3 Series PLC as shown
below.