User`s manual
0
Quick Reference of Parameters, Alarms and Faults
0-18 | MW500
Fault / Alarm Description Possible Causes
A0702
Inverter Disabled
This failure occurs when there is a
SoftPLC movement block (REF block)
active and the “General Enable”
command is disabled.
Check if the drive general enable command is active.
A0704
Two mov. Enabled
It occurs when 2 or more SoftPLC
movement blocks (REF Block) are
enabled at the same time.
Check the user’s program logic.
A0706
Refer. Not Prog. SPLC
This failure occurs when a SoftPLC
movement block is enabled and the
speed reference is not programmed for
the SoftPLC.
Check the programming of the references in the Local and/or
Remote mode (P0221 and P0222).
A0710
SPLC Prog. Bigger than
8 KB
This failure occurs when the user tries
to download a SoftPLC program bigger
than 8 Kb.
Extension of the SoftPLC prog. exceeded 8 KBytes.
F0021
Undervoltage on the
DC Link
Undervoltage fault on the intermediate
circuit.
Wrong voltage supply; check if the data on the inverter label
complies 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
complies 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.
F0031
Communication Fault
with Plug-in Module
Main control cannot set a
communication link with the plug-in
module.
Plug-in module is damaged.
Plug-in module is not properly connected.
Problem in the identification of the plug-in module; refer to P0027
for further information.
F0033
VVW Self-tuning Fault
Stator resistance setting fault P0409. Stator resistance value in P0409 does not comply with the
inverter power.
Motor connection error; turn off the power supply and check the
motor terminal box and the connections with the motor terminals.
Motor power too low or too high in relation to the inverter.
F0048
Overload on the IGBTs
Overload fault on the power pack with
IGBTs (3 s in 1.5xInom).
Inverter output overcurrent (>2xInom).
F0051
IGBTs Overtemperature
Overtemperature fault measured on the
temperature sensor of the power pack.
High ambient temperature around the inverter (>50 °C (>122 °F))
and high output current.
Blocked or defective fan.
Heatsink is too dirty, preventing the air flow.
F0070
Overcurrent/Short
Circuit
Overcurrent or short circuit on the
output, DC link or braking resistor.
Short circuit between two motor phases.
Short circuit of the rheostatic braking resistor connecting cables.
IGBTs module in short circuit or damaged.
Start with too short acceleration ramp.
Start with motor spinning without the Flying Start function.
F0072
Motor Overload
Motor Overload Fault (60 s in 1.5xInom). P0156, P0157 and P0158 setting is too low in relation to the
motor operating current.
Overload on the motor shaft.
F0074
Ground Fault
Ground overcurrent fault.
Note: This failure may be disabled by
P0343.
Short circuit to the ground in one or more output phases.
Motor cable capacitance too high, causing current peaks in
the output.
F0076
Motor Conection Lost
There is an input phase fault or
unbalanced 3 phase input power supply.
Bad motor connection to the drive.
Motor connection is broken.
F0078
Motor Overtemperature
Overtemperature fault measured on the
motor temperature sensor (Triple PTC)
via analog input AIx or digital input DIx.
Overload on the motor shaft.
Load cycle is too high (high number of starts and stops per minute).
High ambient temperature around the motor.
Poor contact or short circuit (3 k9 < RPTC < 0k1).
Motor thermistor not installed.
Motor shaft is stuck.