Pentax IPFC-Serie Betriebsanleitung Seite 31

NO WATER
(DRY RUN COSPHI)
SENSOR FAULT
MAX. VALUE ALARM
MIN. VALUE ALARM
IGBT TRIP ALARM
NO
COMMUNICATION
ADDRESS ERROR
KEYBOARD FAULT
ACTIVE DIG.IN.X
ALARM SLAVE XX
Motor cosphi is lower than the set value of
dry running cosphi
Sensor error
Measured value has reached the maximum
value accepted by the system.
Measured value has reached the lowest
value accepted by the system.
The current drawn by the load exceeds the
capacity of IPFC.
IPFC is still able to continue to power the
load for 10 minutes with an output current
of 101% of nominal and for 1 minute with
an output current of 110% of nominal
Communication between Master and
slave(s) has been interrupted
Same address as other IPFCs in the group
A Button on the keyboard has been
pressed for more than 150 seconds
Digital input X opened /closed
slave XX error detected by master
 Check if the pump is primed
 Check the set value of dry running cosphi.
Dry running cosphi is approximately 60% of
the rated cosphi (at rated frequency) listed
on the motor plate.
If pump's cosphi is lower than the set dry-
running cosphi for at least 2 seconds, IPFC stops
the pump. IPFC tries to run the pump every
10, 20, 40, 80, 160 minutes and then the pump
is stopped.
WARNING: if dry running protection occurs,
IPFC will try to start the pump automatically. Be
sure to cut power supply to IPFC before
performing any maintenance.
 Check the transducer
 Check the wiring of transducer
 Check possible causes of reaching max
value
 Check the max alarm value setting
 Check possible causes reaching min value
(i.e. broken pipe, open pressure relief valve,
etc.)
 Check the min alarm value setting.
 Increase the ramp-up time
 Make sure that the load current is at least
10% below the IPFC nominal current
 Check the voltage drop along the supply
cable to the motor
 Check the wiring connections
 Make sure the Master is not in the Menu
level; if so, exit from the level.
 In the STATUS of the slave (where the alarm
is displayed) try to reset the alarm by
pushing STOP button.
 The address of each IPFC needs to be
different
 Make sure buttons are not depressed
 Call service assistance
 Check the input digital configuration
(IN/OUT Parameters menu )
 check the status of the slave
31