STwrench User Guide System overview
9836 4134 01 Edition 2.9 43 (326)
NOTE: Each smartHEAD is intended to be associated with a single STwrench controller!
The smartHEAD interchangeability assures easy and fast maintenance operations and
wrench upgrade.
IMPORTANT NOTE:
Assembling different heads on the same controller during the normal wrench operations
represents improper use of the modularity concept and will invalidate the warranty on the
2.4.4 RBU
RBU (Rapid Backup Unit) is a memory chip which defines which functions are
activated and provides backup for your tightening programs.
It also stores the specific settings of your STwrench (see the default configuration in
Appendix C - STwrench Factory Settings); by installing your RBU in another wrench
you therefore get an exact copy of the original wrench.
There are four types of RBU available:
• RBU Quality: Enables strategies for quality controls and joint analysis only
• RBU Quality API: Quality RBU with API interface enabled.
• RBU Production: Enables all strategies for quality and production.
• RBU Production API: Production RBU with API interface enabled.
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