WEG CFW501 V1.8X, Programming Manual, Page: 26 / 192

Quick Reference of Parameters, Alarms and Faults
0-18 | CFW501
0
Fault / Alarm Description Possible Causes
A0760
Low Level of the Process
Variable of the Main PID
Controller
Alarm that indicates the process variable
of the main PID controller has a low
value.
„
Parameter P1030 is programmed for 1 and the value of the
process variable of the main PID controller remained below
the value programmed in P1031 for the time programmed
in P1032.
A0762
High Level in the Process
Variable of the Main PID
Controller
Alarm that indicates the process variable
of the main PID controller has a high
value.
„
Parameter P1030 is programmed for 1 and the value of the
process variable of the main PID controller remained above
the value programmed in P1033 for the time programmed
in P1034.
A0764
Frequency Inverter in
Sleep Mode
Alarm that indicates the CFW501
frequency inverter is in the sleep mode.
„
Main PID controller is enabled and in automatic mode, and
the motor speed remained below the speed programmed in
P1036 for the time programmed in P1037.
A0766
Dry Pump Detected
Alarm that indicates the dry pump
condition was detected for the pump
driven by the CFW501 frequency
inverter.
„
Parameter P1042 is programmed for 1 and the pump driven
by the CFW501 frequency inverter is running with speed
above the speed programmed in P1043 and the motor torque
remained below the value programmed in P1044 for the time
programmed in P1045.
A0768
Broken Belt Detected
Alarm that indicates the broken belt
condition was detected for the motor
driven by the CFW501 frequency inverter.
„
Parameter P1046 is programmed for 1 and the motor driven
by the CFW501 frequency inverter is running with speed
above the speed programmed in P1047 and the motor torque
remained below the value programmed in P1048 for the time
programmed in P1049.
A0770
Filter Maintenance
Alarm that indicates the need of
replacing the system filter.
„
Parameter P1050 is programmed for 1 and the operation time
of the motor driven by the CFW501 frequency inverter shown
in P1052 is above the value programmed in P1051.
A0780
Program AIx for Process
Variable of the External
PID Controller
Alarm that indicates an analog input was
not programmed for the process variable
of the external PID controller.
„
Parameter P0231 or P0236 was not programmed for 8.
A0782
Program DIx for Automatic
/ Manual Selection of the
External PID Controller
Alarm that indicates a digital input was
not programmed for automatic / manual
selection of the external PID controller.
„
Parameter P0263 or P0264 or P0265 or P0266 was not
programmed for 21.
A0784
Program AOx for Output
of the External PID
Controller
Alarm that indicates an analog output was
not programmed for output of the external
PID controller.
„
Parameter P0251 or P0254 was not programmed for 16.
A0786
Low Level of the Process
Variable of the External
PID Controller
Alarm that indicates the process variable
of the external PID controller has a low
value.
„
Parameter P1075 is programmed for 1 and the value of the
process variable of the external PID controller remained below
the value programmed in P1076 for the time programmed
in P1077.
A0788
High Level of the Process
Variable of the External
PID Controller
Alarm that indicates the process variable
of the external PID controller has a high
value.
„
Parameter P1075 is programmed for 1 and the value of the
process variable of the external PID controller remained above
the value programmed in P1078 for the time programmed
in P1079.
F0021
Undervoltage on the DC
Link
Undervoltage fault on the intermediate
circuit.
„
Wrong voltage supply; check if the data on the inverter label
comply with the power supply and parameter P0296.
„
Supply voltage too low, producing voltage on the DC link
below the minimum value (in P0004):
Ud < 200 Vdc in 200-240 Vac (P0296 = 0).
Ud < 360 Vdc in 380-480 Vac (P0296 = 1).
Ud < 500 Vdc in 500-600 Vac (P0296 = 2).
„
Phase fault in the input.
„
Fault in the pre-charge circuit.
F0022
Overvoltage on the DC
Link
Overvoltage fault on the intermediate
circuit.
„
Wrong voltage supply; check if the data on the inverter label
comply with the power supply and parameter P0296.
„
Supply voltage is too high, producing voltage on the DC link
above the maximum value (in P0004):
Ud > 410 Vdc in 200-240 Vac (P0296 = 0).
Ud > 810 Vdc in 380-480 Vac (P0296 = 1).
Ud > 1000 Vdc in 500-600 Vac (P0296 = 2).
„
Load inertia is too high or deceleration ramp is too fast.
„
P0151 or P0153 setting is too high.