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6. Functional description of progressive system
6.3 Functional description of progressive
system with KFGC (CAN bus) pump unit
The general functional description for progres-
sive systems with a KFGS pump unit also ap-
plies for the design with CAN bus pump control
The integrated LC-CAN5000 control unit
permits the lubrication zone of a progressive
feeder system to be distributed into individual
lubrication zones for which individual param-
eters (e.g., contact and interval times) can
be set. Up to four lubrication zones can be
installed in total.
To distribute the lubricant, a corresponding
number of electric switch valves is installed
in the lubrication line leading from the pump
element. A valve is opened as soon as the
control unit starts a pump cycle period for the
corresponding lubrication zone.
The pump can only provide one lubrication
zone with adequate lubrication, so it must be
ensured that only one valve is opened during
operation. This is handled by the control unit in
automatic and semiautomatic operation.
When CAN commands are used for control,
valve opening must be ensured by selecting
the appropriate contact and interval times or
by using appropriately programmed processes
in the external lubrication program to switch
the valves in a carefully coordinated sequence
so that only one valve is activated at a time.
6.3.1 Explanations of the lubrication
process and lubrication cycle
The lubrication cycle/process is divided into a
pump cycle time and an interval time because
the lubrication points only require lubrication
at certain intervals. A lubrication cycle always
begins with a pump cycle.
CAN-Bus (SAE J1939)
Progressive system with KFGC (CAN bus) pump unit
KFGC
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