LSI-Robway RCI-1502 HRT, Instruction Manual

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Data Logging on RCI Systems
•
load monitoring continues, the SWL percentage is continually checked against the
SWL percentage which was stored, if the percentage increases, a new stable load
will be recorded.
A log cycle is completed when:
•
the current SWL % drops below the THRESHOLD for a period of time set by the
Reset Time Function Code
OR
•
the SWL drops to 0 initiating a Type 2 Log cycle.
In either case, the currently perform ed l og will be stored prio r to initiating a new
cycle.
Type 2 Log- Out of Load Chart / Error conditions
A log cycle is started when:
•
SWL drops to 0, implying SWL % is unkno wn but definitely greater than 110%.
In this case the SW L is nominally set to 110% and appears as ">110%" in the
logger print out.
During a log cycle:
•
the load is monitored and the peak load seen is continually updated (in log 1).
•
the radius is monitored and the max. radius seen is continually updated (in log 2).
A log cycle is completed when:
•
SWL becomes > 0 (log 1 AND log 2 are stored and condition for starting a type 1
log is checked).
Hence, if a load is lifted within the load chart a single log is performed. If the boom is
positioned ou tside of the load char t, any log cycle in progress is stored and a new
cycle begins. During this overload cycl e two individual logs will be performed. One
log will record the maximum load reading which is observed and the other will record
the maximum radius which is observed. It is necessary to perform two logs because it
is impossible to kn ow which is a more unsafe condition, a longer radius or a shorter
radius but higher load on the hook.
Stable loads are not monitored during out-of-chart/error logging cycles.