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Description
The Schneider 990XCP98000 is a dedicated lithium backup battery designed for the Modicon Quantum automation series. This component provides the necessary 3 V DC power to the CPU to ensure the retention of volatile RAM data, including user-defined logic, controller configurations, and real-time clock synchronization during power outages. By preventing the loss of critical program memory and timing data, this battery is essential for maintaining operational continuity and reducing recovery time in industrial control environments.
Features
- Designed specifically for compatibility with Modicon Quantum CPU modules.
- Utilizes high-density lithium-thionyl chloride chemistry for long-term reliability.
- Features a low self-discharge rate, supporting a service life of up to 10 years under standard operating conditions.
- Equipped with a pre-wired connector for straightforward installation into the CPU housing.
- Supports hot-swappable replacement, allowing for maintenance while the controller remains powered.
- Monitored by the CPU system, which triggers a dedicated BAT alarm when voltage levels fall below the operational threshold.
Applications
This backup battery is suitable for critical industrial automation environments, including:
- Petrochemical and oil refining infrastructure.
- Thermal and renewable power generation facilities.
- Large-scale water and wastewater treatment plants.
- Automated manufacturing and process control systems.
Technical Specifications
| Model |
990XCP98000 |
| Brand |
Schneider Electric |
| Chemistry |
Lithium Thionyl Chloride (Li-SOCl2) |
| Voltage |
3 V DC |
| Capacity |
1.2 Ah (1200 mAh) |
| Expected Service Life |
10 Years |
| Operating Temperature |
-20 to 60 deg C |
| Storage Temperature |
-40 to 70 deg C |
| Humidity |
95% non-condensing |
Installation Guidelines
- Ensure the CPU is powered on when performing a hot-swap to prevent loss of RAM data during the battery transition.
- Verify that the connector is fully seated in the CPU socket to ensure reliable electrical contact.
- Check the front-facing BAT LED indicator on the CPU module post-installation to confirm the alarm has cleared.
- Store in a cool, dry environment away from direct heat sources to maximize shelf life prior to installation.
- Dispose of used lithium cells in accordance with local environmental regulations regarding hazardous materials.
FAQ
Does this battery require special handling during shipping?
As a lithium-thionyl chloride battery, it should be handled according to local transport regulations for lithium metal cells. It is mercury and toxic heavy metal-free.
Can I replace this battery while the PLC is running?
Yes, the Modicon Quantum CPU supports hot-swapping for this battery, provided the CPU is powered by the main supply during the exchange to prevent memory loss.
How do I know when to replace the battery?
The Modicon Quantum CPU features an integrated monitoring circuit that triggers a physical BAT Alarm indicator on the front panel when the voltage drops below the required threshold.
