3.4. Fill level monitoring
3.4.1. Visual fill level monitoring
Danger!
The lubricant reservoir fill level must be
checked regularly on piston pump units
with reservoir that are not equipped with
electrical fill level monitoring. Proper
lubrication is no longer guaranteed if the
fill level falls below the "min." mark, which
can result in severe injury or death and
property damage.
The entire centralized lubrication system
must be vented if the lubricant reservoir fill
level has fallen below the "min." mark.
The lubricant reservoir is transparent and has
marks indicating the maximum and minimum fill
level. The current level can be seen from the
position of the follower piston.
3.4.2. Electrical fill level monitoring
Piston pump units with reservoir can optionally be
equipped with a fill level switch. When the fill level in
the lubricant reservoir reaches the "min." mark, one
of the following occurs depending on the model
design:
o On piston pump units with integrated control
unit, the operational sequence is stopped and a
fault message appears on the control screen.
o On piston pump units without control unit, the
signal is issued via the corresponding connector.
3.5. Electronic control unit (optional)
Depending on the model design, the piston pump
units with reservoir may be equipped with a
programmable electronic control unit that controls
and monitors the lubrication procedure.
3.5.1. Modes of operation
Piston pump units with reservoir can be operated in
different modes. The units always operate cyclically,
i.e. a lubrication procedure (contact time) during
which the piston pump runs and supplies the
lubrication points is followed by a lubrication pause
(interval time). One lubrication cycle consists of a
contact time and an interval time.
Timer mode
The contact time and interval time are timer-
controlled.
PAUSE: Values in hours
CONTACT: Values in minutes
Counter mode (only KFAS)
The contact time is timer-controlled. The interval
time depends on the number of pulses, i.e. the
interval lasts until the control unit receives an
adjustable number of pulses from an external pulse
generator.
Connect an external pulse generator to
input DK/MK.
PAUSE: Values in pulses
CONTACT: Values in minutes
3.5.2. Contact time (pump cycle time)
The duration of the contact time is programmable.
With progressive distributor monitoring deactivated,
the duration of the lubrication procedure
corresponds to the set contact time.
3.5.3. Interval time
The duration of the interval time is programmable.
3.5.4. System monitoring
The system monitoring function is optional and
includes monitoring of:
o A fill level switch (if present) and/or
o One or two progressive distributors by one or
two cycle switches, respectively
Progressive distributor monitoring can be activated
and deactivated.
The monitoring of the fill level switch, if present,
always remains active.
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