LUC
+
125, 24 V, time-controlled
en-24
Revision: 01
7.3
Standard output signals at PIN 4 – Time control
In the time control mode (factory settings), the lubricator provides the output signals via the
electrical interface. If necessary, the operating modes of the lubricator can be processed
externally. The output signals can generally only be read and must not be subject to inductive or
low resistive loads. This also enables remote status control, in addition to the visual indication at
the display and LED on the lubricator.
7.3.1 Empty cartridge signal
The integrated microelectronics of the lubricator are equipped with an automatic counter of the
number of delivery operations after fitting a new and full cartridge. For a cartridge with 125 cm
3
of
lubricant, the number of strokes is 780; for a cartridge with 250 cm
3
of lubricant, the number of
strokes is 1560. The low difference in calculation serves as protection against the ingress of air
into the hydraulic system. This ensures that the empty cartridge message (error
E1
) is sent in
time [e.g. to the external control system (PLC)]. For this, a dedicated and unique output signal
can be easily, quickly and reliably recognized by the external control system.
7.3.2 High-signal output (+24 V) at PIN 4
A permanent and continuous high signal (+24 V)
at PIN 4 indicates that there is an active error.
The error must be read on the display of the
lubricator (see chapter 6.4 "Error messages").
The lubricator does not deliver any lubricant!
7.3.3 Low-signal output (+0 V) at PIN 4
A permanent and continuous low signal (0 V) at PIN
4 indicates that the lubricator is ready for operation
and that there are no active errors. The lubricator
operates according to the settings made and
delivers lubricant from the cartridge to the outlet
accordingly.