en – Original instructions
47
Code Description
Cause
Solution
E03
DC-bus
overvoltage error
•
DC-bus overvoltage
•
External conditions cause the
operation of the pump from
generator
Check:
•
the system configuration
•
the position and integrity of the non-return
valves
E04
Rotor blocked
•
Motor stall
•
Loss of rotor synchronism or
rotor blocked by external
materials
•
Check that there are no foreign bodies
preventing the pump from turning
•
Stop the pump for 5 minutes and then start it
again
If the problem continues, contact Xylem or the
Authorised Distributor
E05
EEPROM Data
memory error
EEPROM Data memory
corrupted
Stop the pump for 5 minutes and then restart it
again; if the problem continues, contact Xylem or
the Authorised Distributor
E06
Grid voltage error
Voltage supply out of operating
range
Check:
•
the voltage
•
the connection of the electric system
E07
Motor winding
temperature error
Motor thermal protection trip
•
Check for impurities near the impeller and rotor.
Remove them if necessary
•
Check the conditions of installation, and the
water and air temperature
•
Wait for the motor to cool down
•
If the error persists, stop the pump for 5
minutes and then start it again
If the problem continues, contact Xylem or the
Authorised Distributor
E08
Power module
temperature error
Frequency converter thermal
protection trip
Check the conditions of installation, and the air
temperature
E09
Generic hardware
error
Hardware error
Stop the pump for 5 minutes and then restart it
again; if the problem continues, contact Xylem or
the Authorised Distributor
E11
LOW error
Lack of water detection (if P48=
ERR)
Check the water level inside the tank
E12
Pressure sensor
error
Missing pressure sensor (not
present in ACT mode)
Check the condition of the sensor connection
cables
E14
Low pressure error Pressure below minimum
threshold (not present in ACT
mode)
Check the settings of parameters P45 and P46
E15
Loss of phase error One of the three power supply
phases is missing (three-phase
versions only)
Check the connection to the power supply network
E30
Multi-pump
protocol error
Incompatible multi-pump
protocol
Bring all the units to the same firmware version
E44
External analogue
reference error
External analogue signal missing
or out of range (if P40 = ISP)
Check:
•
the P40 parameter setting
•
External analog signal source and cables
(terminals 9-10 for the single-phase version,
terminals 17-18 for the three-phase version)
See also Par. 6.3.2 and Par. 6.4.3.
