10.3 Overview of faults, protections and warnings
This table shows in which state the different indications
for protections, faults and warnings may show up.
Motor control states *
Stand by
Start pr
er
equisites
Pr
e-start
Init start
Start Ramp
Close bypass
Top of ramp
Open bypass
Stop ramp
Separate func
Pr
otections
EOL protection
X
X
X
X
X
X
X
X
X
X
Locked rotor protection
X
Phase reversal protection
X
X
X
X
X
X
X
X
X
X
Current imbalance protection
X
Over voltage protection
X
Under voltage protection
X
Earth fault protection
X
X
X
X
X
X
X
X
X
Voltage imbalance protection
X
X
X
X
X
X
X
X
X
X
Voltage outputs protection
X
X
X
X
X
X
X
X
X
X
External thermal sensor - PT100 protection
X
X
X
X
X
X
X
X
X
X
External thermal sensor - PTC protection
X
X
X
X
X
X
X
X
X
X
Power factor underload protection
X
Current underload protection
X
User defined protection
X
X
X
X
X
X
X
X
X
X
Too long current limit protection
X
X
By-pass open protection
X
Fieldbus failure protection
X
X
X
X
X
X
X
X
X
X
Extension IO failure protection
X
X
X
X
X
X
X
X
X
X
HMI failure protection
X
X
X
X
X
X
X
X
X
X
Limit number of starts
X
Faults
Phase loss fault
X
X
X
X
X
X
X
X
High current fault
X
X
X
X
X
X
X
X
X
X
Low supply voltage fault
X
X
X
X
X
X
X
X
X
X
Bad network fault
X
X
X
X
Thyristor overload fault
X
X
X
X
X
X
X
X
X
X
Short circuit fault
X
X
X
X
X
Shunt fault
X
X
X
X
X
Unspecified fault
X
X
X
X
Heat sink overtemperarure fault
X
X
X
X
X
X
X
X
X
X
Open circuit thyristor fault
X
X
X
X
X
Faulty usage
X
Faulty connection
X
W
ar
nings
Current imbalance warning
X
Over voltage warning
X
Under voltage warning
X
EOL time-to-trip warning
X
X
X
X
X
X
X
X
X
X
EOL warning
X
X
X
X
X
X
X
X
X
X
Total Harmonic Distortion (THD) warning
X
Voltage imbalance warning
X
X
X
X
X
X
X
X
X
X
Power factor underload warning
X
Current underload warning
X
Faulty Fans warning
X
X
X
X
X
X
X
X
X
X
Locked rotor warning
X
Thyristor overload warning
X
X
X
X
X
X
X
X
X
X
Short circuit warning
X
X
X
X
X
* For motor control states description, see chapter 7 Functions
10
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