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Siemens SIMOTION TM 121C Safety Unit

Siemens SIMOTION TM 121C Safety Unit with 24 F-DI & 8 F-DO.

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ManufacturerSiemens

Part number6AU1121-2CA00-0AA0

Inputs 24x F-DI (24V DC)

Outputs 8x F-DO (24V DC/2A), 8x DO (24V DC/0.5A)

Counter Inputs 2x 500 Hz

Memory Card 128 KB

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24 Fail-Safe Digital Inputs 8 Fail-Safe Digital Outputs 8 Standard Digital Outputs 2x 500 Hz Counter Inputs Integrated Safety Functions 128 KB Memory Card

Product description

The Siemens 6AU1121-2CA00-0AA0 is a SIMOTION technology module TM 121C safety unit. It is equipped with 24 fail-safe digital inputs (F-DI), 8 fail-safe digital outputs (F-DO) rated at 24V DC/2A, and 8 standard digital outputs (DO) at 24V DC/0.5A. Additionally, it features 2 counter inputs capable of 500 Hz and includes a 128KB memory card.

This safety unit is designed for integration into SIMOTION systems for enhanced machine safety. It adheres to Machinery Directive 2006/42/EC but is noted for new systems only with continuation permits for older systems, and requires referencing SIOS 39847874. It's suitable for applications requiring integrated safety functions to protect personnel and machinery.

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Technical specifications

Inputs	24x F-DI (24V DC)
Outputs	8x F-DO (24V DC/2A), 8x DO (24V DC/0.5A)
Counter Inputs	2x 500 Hz
Memory Card	128 KB
Directive	Machinery Directive 2006/42/EC

Common applications

Machine Safety

Industrial Automation

Motion Control Systems

Robotics Safety

Manufacturing Equipment

Compatible systems

SIMOTION Control Systems Requires specific SIMOTION software versions.

Also known as

SIMOTION TM 121C Safety Unit Siemens Safety Module 6AU1121-2CA00-0AA0 SIMOTION

Replaces / compatible with

This module is designated as a 'spare part' and is no longer intended for new systems without a continuation permit. Refer to SIOS 39847874 for specific details.

Technical note

Expert tip

This module is marked 'End Prod.Lifecycl.' and is for use in older systems with continuation permits, not for new installations, according to the Machinery Directive 2006/42/EC.

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Frequently asked questions

What are the input and output specifications for the Siemens 6AU1121-2CA00-0AA0 SIMOTION TM 121C safety unit?

The Siemens 6AU1121-2CA00-0AA0 safety unit features 24 fail-safe digital inputs (F-DI) and 8 fail-safe digital outputs (F-DO) at 24V DC/2A. It also includes 8 standard digital outputs (DO) at 24V DC/0.5A and two 500 Hz counter inputs.