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7.3.4 Monitoring functions
The following functions are available for moni-
toring the lubrication system:
Fill level monitoring
Pressure build-up monitoring
Pressure reduction monitoring
Monitoring signal cables for
cable breakage and monitoring valves and
piston detectors
Monitoring outputs for short circuit
Monitoring power consumption of the
pump motor
Monitoring the temperature in the
pump unit
7.3.4.1 Fill level monitoring
Depending on the unit design, either mechani-
cal or capacitive sensors are used to monitor
"min." mark (approx. 300 g remaining for NLGI
Grade 2 grease). A second, optional sensor
can be used to generate a pre-warning so the
operator is prompted to top up in time.
The sensor sends a signal to the control unit if
the lubricant level reaches the "min" mark. The
(see Chapter 15).
7.3.4.2 Pressure build-up monitoring
(single-line systems)
The pressure switch monitors whether the re-
quired pressure buildup occurs in the lubrica-
tion line during the pump cycle time. A signal is
sent to the control unit when the set pressure
is reached. The signal from the pressure switch
can be used to control the pump cycle time. If
value within a certain time (pump cycle time),
the pump will continue to be operated for a
certain time (delay time) and then switched off,
or the lubrication zone will be closed and the
relief procedure initiated.
If the pressure in the lubrication line does not
cycle time, this is considered an operational
malfunction. The operational sequence will be
-
ated (see also Chapter
15).
7. Functional description in single-line systems
KFGC
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