ABB TA521 AC500 Lithium Button Cell Set

Product Description

Configured for remanent memory and real-time clock power retention in AC500 CPU platforms, the ABB TA521 (TA521 Adapter Cable) provides a direct battery connection using an encapsulated CR2450 lithium primary button cell. It supports AC500 V2 CPU PM57x, PM58x, PM59x except PM595, and AC500 V3 CPU PM56xx.

Hardware Specifications

AC500 Memory and RTC Retention

The TA521 connects an encapsulated CR2450 lithium primary cell to the supported AC500 CPU. The battery supplies the CPU's remanent memory and real-time clock functions when the normal CPU power source is unavailable.

The adapter uses a cable-based physical connection rather than a communication interface. Therefore, it does not provide PLC backplane communication, I/O signal conditioning, or fieldbus conversion. Its function remains limited to battery-supported memory and clock retention.

The specified CPU compatibility includes PM57x, PM58x, and PM59x processors in the AC500 V2 family, with PM595 explicitly excluded. It also supports PM56xx processors in the AC500 V3 family.

Frequently Asked Questions

Q: Which AC500 CPUs support the TA521?
A: The TA521 supports AC500 V2 PM57x, PM58x, and PM59x CPUs, excluding PM595, and AC500 V3 PM56xx CPUs.

Q: What function does the CR2450 battery perform?
A: The encapsulated lithium primary cell supplies the CPU's remanent memory and real-time clock.

Q: Does the TA521 provide a PLC communication interface?
A: No. The supplied specifications identify the TA521 as a battery adapter cable. It does not provide a PLC backplane, Ethernet, or fieldbus communication function.

Field Installation Guidelines

• Confirm the CPU model against the specified TA521 compatibility range before installation.
• Do not install the TA521 on a PM595 CPU because the supplied ABB specification explicitly excludes this model.
• Install the adapter according to the CPU manufacturer's designated battery connection arrangement.
• Protect the cable and connector from mechanical stress, sharp bends, and unintended pulling forces.
• Keep the battery connection isolated from wiring that can introduce mechanical abrasion or electrical interference.
• Maintain the IP20 installation environment specified for the accessory.
• Observe the stated operating range of 0 ... +60 deg C and storage range of -20 ... +60 deg C.
• Handle the lithium battery in accordance with applicable site procedures for lithium primary cells and UN3090 transport requirements.

Other Attributes

• Series: Advant DCS/800xA
• Country of Origin:  Germany/Sweden/Finland
• Lead Time: In Stock, 2 Working Days

In Stock Hot Items of ABB

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