Malfunctions
• Pump switches off immediately if there is
no feedback from pressure switch or
pressure transducer within minutes of
pumping time. One of the fault signals
E
to
E
(
† Fig.
to
Fig.
) will be shown
flashing in display of membrane keypad.
NOTE
E
,
E
,
E
or
E
will flash if malfunction
is present. Pump does not switch on
automatically any longer. It can only be
triggered via an additional lubrication
cycle. Programming mode cannot be
changed while there is an alarm.
Fig.
Display of malfunction E fault:
Failure to build pressure at pump
• Occurs if either pressure switch or
pressure transducer fails to actuate
within minutes of pumping.
Fig.
Display of malfunction E fault:
Failure to build pressure at end of line
Must use external pressure switch or pressure
transducer to detect.
• Occurs if either external pressure switch
or pressure transducer fails to reach
psi
(172 bar)
within minutes
of pumping.
Fig.
Display of malfunction E fault:
Failure to vent at pump
• Failure of internal pressure switch to open
during the seconds the pump motor
reverses to locate the vent position.
• Failure of internal pressure transducer
to drop psi
(62 bar)
below the
P
parameter [
P
minus psi
(62 bar)
]
during the seconds that pump motor
reverses to locate the vent position.
•
E
fault occurs if at end of pause time
internal pressure transducer has not
dropped below psi
(62 bar)
.
Fig.
Display of malfunction E fault:
Failure to vent at end of supply line
Must use external pressure switch or
pressure transducer to detect.
•
E
fault occurs if at end of pause time
external pressure switch has not opened.
•
E
fault occurs if at end of pause time
external pressure transducer has not
dropped below
P
parameter.
Fig.
Operator key to trigger additional
lubrication cycle
Press button for seconds to trigger
additional lubrication cycle.
Fig.
Operator key to acknowledge a fault
To trigger additional lubrication cycles
externally:
• Press push-button to trigger additional
lubrication cycle externally. Press
push-button for seconds.
–
Mobile pump with ignition switch open
up to two times.
–
Industrial pump with machine switch
open... unlimited.
NOTE
Existing fault signals (
† Fig. to
Fig.
,
page
and
page
) must
be acknowledged before triggering an
additional lubrication cycle.
> seconds