WEG CFW11 Applications Manual page 8

Quick Parameter Reference, Faults and Alarms
FAULTS AND ALARMS
Fault / Alarm
F021:
Undervoltage on the DC Link
A163:
Signal Fault AIx 4..20 mA
A750:
Sleep Mode Active
A752:
Starting Time
A754:
DC Checking Routine
A756:
Low Level Solar Detection
F761:
Minimum Pressure
F763:
Maximum Pressure
F765:
Dry Pump
F799
Incompatible Firmware Version
Description
Undervoltage fault on the intermediate circuit.
Analog input signal AIx at 4 to 20 mA or 20 to 4
mA is below 2 mA.
It indicates that the Solar Pump Drive is in the
sleep mode.
It indicates that the time between start attempts
has started, the remaining time to the new start
attempt can be followed in P1016.
It indicates that the drive is trying to accelerate
to minimum speed and checking the DC bus
behavior.
It indicates that there is Low Solar radiation
(AI2).
Minimum system pressure failure.
Maximum system pressure failure.
It indicates that the pump was stopped due to dry
pump protection.
It indicates that the Firmware is incompatible
with the Solar Pump Application.
Possible Causes
The input voltage is too low and the DC link voltage
dropped below the minimum permitted value
(monitor the P0004 parameter value):
Ud < 223V - 200 / 240V three-phase input voltage
(P0296=0);
Ud < 170V - 200 / 240V single-phase input voltage
(P0296=0);
Ud < 385V - 380 V input voltage (P0296 = 1);
Ud < 405V - 400 / 415V input voltage (P0296=2);
Ud < 446V - 440 / 460V input voltage (P0296= 3);
Ud < 487V - 480V input voltage (P0296=4);
Ud < 530V - input voltage 500 / 525V (P0296=5);
Ud < 580V - input voltage 550 / 575V (P0296=6);
Ud < 605V - input voltage 600V (P0296=7);
Phase loss at the inverter input;
Pre-charge circuit failure;
Parameter P0296 was set to a value higher than
the power supply rated voltage.
Current signal on the analog input AIx interrupted
or null.
Error in the parameterization of analog input Aix.
Value of the pump motor speed is below the
threshold programmed in P1035 during the time
programmed in P1036.
Starting Time was due to lack of Solar Drive power
(low power on solar panels)
DC Bus checking alarm occurs at each start
attempt when there is no measurement of a Solar
Detection Sensor (AI2).
The system is attempting to start with a low-level
measurement of a Solar Detection Sensor (AI2).
The system pressure is below the value of P1044
for the time programmed in P1045.
The system pressure is above the value of P1046
for the time programmed in P1047.
During a time (P1040) the value of the pump motor
speed remains above
programmed in P1041 and motor torque remains
below the threshold programmed in P1042.
The firmware of the product
incompatible with the Solar Pump Application
version.
Solar Pump Drive | 8
of the threshold
(P0023) is