Chapter 6 - Diagnostics And Troubleshooting - Eliwell EWCFW-08 User Manual

CHAPTER 6 - DIAGNOSTICS AND TROUBLESHOOTING

FAULT
E02 Power-on
DC link Manual (key
undervoltage Auto-reset
DI
E04
Overtemperature
at the power
heatsink or in the
inverter internal air
E05
Motor/inverter
overload
Ixt function
E06
External fault
E08
CPU error
(Watchdog)
E09 Contact Eliwell
Program memory
error (Checksum)
E10 Power-on
Keypad copy Manual (key
function error Auto-reset
DI
E14 Power-on
Self-tuning Manual (key
routine error
E22 -
Serial
communication
error
E24 It is automatically reset
Programming when the incompatible
error parameters are changed
E25 -
Serial
communication
error
E26
Serial
communication
error
(1)
RESET
)
)
)
Table 6.1 (cont.) - Errors, possible causes and reset ways
POSSIBLE CAUSES
Power supply voltage too low, causing a DC link
voltage lower than the minimum allowed value (read the
value in parameter P004)
Ud < 200 V - 200 - 240 V models
Ud < 360 V - 380 - 480 V models
Ambient temperature too high (> 40
output current too high
Blower locked or defective
P156 set too low for the motor that is being used
Too much load on motor shaft
Any DI programmed for external fault
detection is open (not connected to GND - XC1)
Electrical noise
Memory with corrupted values
Defective contact in the HMI-CFW08-RS cable
Electrical noise in the installation (electromagnetic
interference)
Motor is not connected to the inverter output
Wrong motor connection (wrong voltage, lack of one
Self-tuning routine error phase)
The used motor is too small for the inverter
(P401 < 0.3 x P295). Use V/Fcontrol
The value of P409 (stator resistance) is too high for the
used inverter
Serial communication error
Incompatible parameters were programmed
Refer to table 4.1
Serial communication error
o C [104 ºF]) and/or
77