Machine Automation Controller
NX1
32
Battery
The battery is not mounted when the product is shipped.
To turn OFF the power supply to the equipment for a certain period of time by using the clock data for programming, event logs, etc., you need a
separately-sold battery to retain the clock data.
The following describes the purpose of the battery mounting, the battery model, and the battery-related error detection and clock data settings.
Purpose of the Battery Mounting
The battery is used to retain the clock data while the power is not supplied to the CPU Unit. The clock data is retained by the built-in capacitor
whether the battery is mounted or not, but the retention period depends on the continuous power-ON time of the CPU Unit, as shown below.
*1. This is equivalent to the time to charge a built-in capacitor in which no electric charge is accumulated.
When you use the clock data for programming, use a battery if you cannot ensure the continuous power-ON time shown above or the power-OFF
time is longer than the above power-ON time.
The following data (other than the clock data) is retained in the built-in non-volatile memory, so they are not lost even if the battery and built-in
capacitor are fully discharged.
• User program
• Set values
• Variables retained during power interruption
• Event logs
Battery Model
The table below shows the model and specifications of the battery that can be used.
Continuous power-ON time of CPU Unit *
1
Retention period during no power supply at an ambient temperature of 40°C
100 hours
Approx. 10 days
8 hour
Approx. 8 days
1 hour
Approx. 7 days
Model
Appearance
Specification
CJ1W-BAT01
Service life: 5 years
For the battery lifetime, refer to
NX-series NX102 CPU Unit Hardware User’s Manual (W593).
The clock information is retained during power interruptions.