EBARA Press-o-Matic, Instruction Manual

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se t the maximum curre nt value wil l be displaye d; no action can be c arried out until the maximu m
absorption va lue has be en se t.
Auxili ary contact: use this parameter to select the function to be
associated with the aux ili ary contact; the value s th at can be set are the
following:
“
1 <->”
to use the auxi liary c ontact to conne ct two Press•o•Matic
device s as part of a twin pre ssurisation unit (m anufacturer’s default
se tting)
“2 <-“
to use the aux ili ary contact to remote control the start stop of the motor pump.
“3 X2”
to use the auxili ary contact to c ontrol a second pressure se t-point (P max2).
Further information on the wiring and on the three diffe rent operational mode s is c ontained in the
“AUX ILIARY CON TAC T CONNEC TION” section.
ALARMS
Dr y runni ng: this message appears when the syste m is stopped
following a pu mp intake water short age . If the auto-re se t func tion has
be en enabled, the Pre ss•o•Matic will au toma tic ally make a series of
atte mpts to test whether the wate r supply has re turne d. To cle ar the error
status, press the “rese t” button in the c entre.
Se rious leakage: this message appe ars whe n the pump h as be en stoppe d
following a close ly spaced se rie s of restarts cause d by a possible le ak in
the syste m. To re store the syste m status onc e the cause of the alarm has
be en establishe d, pre ss the “rese t” button in the c entre. If this c ondition
oc curs repe ate dly, impairing normal pump ope ration, this feature c an be
disabled. Before disabling, though, e nsure it will not c ause damage to the pump or syste m (se e se ction
titled “DESCRIP TION OF THE PAR AME TER S AND THE SC REEN P AGES”).
Inve rter err or: this alarm appears whe n the in verter is locked following a
power surge or drop outside the limits or ove rheating with ensuing motor
pump shutdown. Although the syste m is restore d automatic ally approx. 3
minute s afte r the e rror c ondition has c leared, the message remains on the
screen to warn the use r that the re might be a failure in the hydraulic and/or
electric syste m. Eve ry time thi s alar m appears, it is advisable to have the system chec ked by skill ed
pe rsonnel to pr eve nt ele ctrical damage. To c lear the me ssage from the display, simply press the “rese t”
button in the c entre .
Short Ci rcuit: This message will appear on the screen when there is a
short c irc uit at the inverter output. the short c ircuit may be c aused by the
incorrect connection of the ele ctric motor, faulty ele ctrical isolation of the
c ables that connec t the motor pump to the device s or failure of the ele ctric
motor of the pump.
Whe n this error appe ars, the ele ctrical syste m must be controlle d by qualified personnel as soon as
possible . The error can only be cleared by disconne cting the de vic e from the ele ctric power supply and
solving the cau se s of the fau lt. Attempting to start the in verter whe n the re is an outpu t short circ uit may
se riously damage the device and be dangerous for the user.