Balluff's easy-to-install BZL systems can reduce cycle time, floor space and perimeter guarding.

Robot Zone Limit Systems Introduction
Balluff zone limit systems are hardware kits that provide diverse, complementary, and redundant position monitoring for up to three robot axes. Designed to interface with a user supplied safety monitoring relay or safety PLC, Balluff zone limit systems include all mounting hardware, complementary redundant cams, and the proven Balluff multiple position limit switch, available in either mechanical or non-contact inductive configurations. These robust systems install easily and provide the flexibility to adjust zone angles and zone location, while providing a control-reliable means to mute personnel sensing devices when the robot is safely out of the way.

 

Robot zone limit system are:

• Flexible - zones can be easily changed by maintenance or trade personnel.
• Reliable - proven ganged mechanical switches or wear-free inductive sensors.
• Productive - robot doesn’t need to wait for operator to load or unload components.
• Space-saving - reduces area guarding requirements
• Cost-saving - reduces capital costs for unnecessary robots and perimeter guarding.
• User-friendly - provides direct visual indication of zone sizes and locations.
• Convenient - fully pre-engineered, kitted hardware solutions eliminate guesswork.
• Specified - meets automotive manufacturers’ requirements.
• Safe - hardware conforms to ANSI recommended practices
  

BZL Kit Components
Balluff robot zone limit systems kit include: switch (with either non-contact, wear-free inductive sensors or robust mechanical safety limit switches), cams (number of sets depends on number of zones), mounting hardware (cam tray, mounting plates, switch bracket, connector plates, angle brackets, and hubs or spacers as required, including all nuts, bolts, screws and washers). Start robot zone limit system selection here




Reduce the number of robots and floor space
Rather than single workstations in two robot cells working without zone limits, a single robot/dual workstation setup using a Balluff zone limit system can reduce the number of robots and floorspace needed by half.

Work cell size reduction is another big benefit. Since the size of the area guarding must be larger than the maximum operational envelope of the robot and its payload, a Balluff robot zone limit system can be used to dynamically restrict the operating envelope of the robot, allowing a much smaller area to be guarded. The reduced guarded area also saves a substantial amount of money by reducing the amount of perimeter guard fencing per work cell.


The enhanced productivity of several robot cells may free up enough capacity to eliminate the need for additional robotic work cells, saving significant capital investment costs.