The Rockwell Automation 440G-LZ Guard Locking Safety Switch
The Rockwell Automation 440G-LZ Guard Locking Safety Switch, part number 440G-LZS21SPRB, is a safety device designed for use on small- and medium-sized guards that are engineered to be rigid without sag and allow partial body access to the safeguarded area. It is a part of the Allen-Bradley Guardmaster series, which is known for its robust safety features and compliance with various international safety standards.
Technical Specifications
The 440G-LZS21SPRB features OSSD outputs that are enabled only when the locking bolt is sensed in its extended position in the actuator. This occurs when the guard is both closed and locked. The locking bolt drive mechanism uses a bi-stable solenoid. The switch has two pairs of LEDs: status LEDs are green and diagnostic LEDs are red. It operates within a temperature range of 0°C to 55°C (32°F to 131°F) and has an operating humidity of 5% to 95% relative. The enclosure is rated NEMA 3, 4X, 12, 13, IP66, IP67, and IP69K, indicating its resistance to various environmental conditions such as water and dust.
Alarm/Error Codes
The switch does not explicitly mention alarm or error codes in its documentation. However, it does have diagnostic LEDs that indicate the status of the switch, which could potentially be used to identify issues or malfunctions.
User Manuals
The user manual for the 440G-LZS21SPRB is available in the publication "440G-LZ Guardmaster Guard Locking Switch User Manual" (Publication Number: 440G-UM001D-EN-P, November 2021). This manual provides detailed information on the switch's operation, installation, and troubleshooting.
Troubleshooting
Troubleshooting information is available in the user manual, which includes troubleshooting tables and guidance on how to identify and resolve common issues. Additionally, the manual provides information on how to perform maintenance tasks and how to ensure the switch operates within its specified parameters.
Programming
The 440G-LZS21SPRB does not require programming in the classical sense. It is a pre-configured safety switch designed to operate within specific safety standards and guidelines. However, it does have adjustable settings for the locking bolt drive mechanism and the actuator, which may require some configuration during installation.
Installation
The recommended cordset for the 440G-LZS21SPRB is catalog number 889D-F8AB-2 (2 m [6.5 ft]). For additional lengths, the catalog number can be modified to include 5 (5 m [16.4 ft]) or 10 (32.8 ft) for standard cable lengths. The switch must be installed in accordance with the manufacturer's instructions and applicable safety standards. Qualified personnel should perform the installation, and the switch should be tested after installation to ensure it operates correctly.
Key Sectors
- Technical Specifications: The 440G-LZS21SPRB features OSSD outputs, bi-stable solenoid locking bolt drive mechanism, and a robust enclosure design for use in various environmental conditions.
- Alarm/Error Codes: The switch does not explicitly mention alarm or error codes in its documentation.
- User Manuals: The user manual provides detailed information on the switch's operation, installation, and troubleshooting.
- Troubleshooting: Troubleshooting information is available in the user manual, including troubleshooting tables and guidance on how to identify and resolve common issues.
- Programming: The switch does not require programming in the classical sense, but it has adjustable settings for the locking bolt drive mechanism and the actuator.
- Installation: The switch must be installed in accordance with the manufacturer's instructions and applicable safety standards.