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 prerequisites
Pre-start
Init start
Start Ramp
Close bypass
Top of ramp
Open bypass
Stop ramp
Separate func
Protections
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
Userdenedprotection 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
Unspeciedfault 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
Warnings
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
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