l Serial communication/optional fieldbus reset signal.
NOTICE
After a manual reset pressing Stop/Reset button, press Start button to restart the motor.
A warning precedes a fault.
A trip lock is an action when an fault occurs, which can damage the drive or connected equipment. Power is removed from the motor.
A trip lock can only be reset after a power cycle has cleared the condition. Once the problem has been rectified, only the fault continues
flashing until the drive is reset.
The fault words, warning words, and extended status words can be accessed via fieldbus or optional fieldbus for diagnosis.
8.5 Warning and Fault Events
Table 71: Warning and Fault Events Summary
Number Description Warning Fault Trip
lock
Cause
2 Live Zero Error X X – Signal on terminal 33 or 34 is less than 50% of the value set in
P 9.5.2.3 T33 Low Voltage, P 9.5.2.5 T33 Low Current, P 9.5.3.3
T34 Low Voltage, and P 9.5.3.5 T34 Low Current.
3 No Motor X X – No motor has been connected to the output of the drive.
4 Mains Phase Loss
(1)(1)
X X X Missing phase on the supply side, or the voltage imbalance is
too high. Check the supply voltage.
7 DC Over Voltage
(1)
X X – DC-link voltage exceeds the limit.
8 DC Under Voltage
(1)
X X – DC-link voltage drops below the voltage warning low limit.
9 Inverter Overloaded X X – More than 100% load for too long.
10 Motor ETR Overtem-
perature
X X – Motor is too hot due to more than 100% load for too long.
11 Motor Thermistor
Overtemperature
X X – Thermistor or thermistor connection is disconnected, or the
motor is too hot.
12 Torque Limit X X – Torque exceeds the value set in either P 5.10.1 Motor Torque
Limit or P 5.10.2 Regenerative Torque Limit.
13 Over Current X X X Inverter peak current limit is exceeded. If this fault occurs on
power-up, check whether power cables are mistakenly con-
nected to the motor terminals.
14 Earth Fault X X X Discharge from output phases to ground.
16 Short Circuit – X X Short circuit in motor or on motor terminals.
17 Control Word Timeout X X – No communication to the drive.
18 Start Failed – X – May be caused by a blocked motor.
25 Brake Resistor Short – X X Brake resistor is short-circuited, thus the brake function is dis-
connected.
262 | Danfoss A/S © 2024.03 AB413939445838en-000301 / 130R1254
Application Guide | iC2-Micro Frequency Converters
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