Lincoln Centro-Matic P653S, Manual

Page: 16 / 48

Page Number - 16
Form 404372
Electric Operated Centro-Matic Pump P653S
Malfunctions
• If there is no feedback from the pressure switch or pres-
sure transducer within 12 minutes of pumping time, the
pump switches off immediately. One of the fault signals
E1 to E4 (Error, Fig. 23 to 26) will be shown flashing in the
display of the membrane key pad.
IMPORTANT
If a malfunction is present, E1, E2, E3 or E4
will be flashing. The pump does not switch
on automatically any longer. It can only be
triggered via an additional lubrication cycle.
Furthermore, a change to the programming
mode is not possible while in alarm.
Fig. 23 Display of the malfunction E1, failure to build pressure
at the pump.
Fig. 22 Display of Holding Time
Display is indicating holding times when pump reaches preset
pressure.
Keypad and Display
E1 fault is a failure to build pressure at the pump.
• If either the pressure switch or pressure transducer fails to
actuate within 12 minutes of pumping this fault will occur.
Fig. 21 Display of a low-level indication
IMPORTANT
If a low-level signal occurs during the lubricat-
ing time, the current operating cycle will still
be completed. However the pump does not
switch on automatically any more. It can only
be switched on again by a manual lube cycle.
Furthermore, it is not possible to change to
the programming mode while there is a low-
level signal.
Low-level control
In the event of a low-level signal the display will flash LL.
Fig. 20 Green circulating illuminated segment, lubricating
time, pump is running.
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