6.3 Progressive systems with
KFGC (CAN bus) pump unit
The general functional description for progres-
sive systems with a KFGS pump unit also
applies for the design with CAN bus pump
control.
The integrated LC-CAN 5000 control unit per-
mits the lubrication zone of a progressive feeder
system to be distributed into individual lubrica-
tion segments which can be configured with
individual parameters (e.g., contact and interval
times). Up to four lubrication segments 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 ele-
ment. A valve is opened as soon as the control
unit starts a pump cycle for the corresponding
lubrication segment.
The pump can only provide adequate lubrica-
tion to one lubrication segment at a time, 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
6. Functional description in progressive systems
Example of progressive system with KFGC pump unit (CAN bus), Fig. 5
central machine control
CAB Bus
SAE J1939
max
the valves in a carefully coordinated sequence
so that only one valve is opened at a time.
KFGC
Page 59
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