3.1.2.1
User defined protection
Programmable digital input can be used in combination
with external device/sensor to provide to the customer the
possibility of handling own defined protection.
The protection is activated when the input signal reaches
high level (fieldbus or physical I/O).
3.1.3
Warning functions
The softstarter is equipped with a number of warning
functions that signal potential risks, before activating a
protection.
The difference between a warning and a protection is that
a warning can not stop the softstarter and that a reset of
a warning is not necessary.
The warning level and other parameters needed to enable
and configure the warning are settable. Warnings will be
logged in the event list when it occurs.
Available warnings are listed below:
•
Current imbalance warning
•
Over voltage warning
•
Under voltage warning
•
EOL time-to-trip warning
•
EOL warning
•
Total Harmonic Distortion (THD) warning
•
Voltage imbalance warning
•
Power factor underload warning
•
Current underload warning
•
Faulty Fans warning
•
Locked rotor warning
•
Thyristor overload warning
•
Short circuit warning
3.1.4
Fault detection functions
The softstarter is equipped with a number of fault
detection functions to signal malfunctioning at
softstarter, motor or power network level. The softstarter
differentiates between external and internal faults. Fault
detection functions can not be disabled by the user.
Available faults are listed below:
•
Phase loss fault
•
High current fault
•
Low supply voltage fault
•
Bad network fault
•
Thyristor overload fault
•
Short circuit fault
•
Shunt fault
•
Unspecified fault
•
Heat sink overtemperarure fault
•
Open circuit thyristor fault
•
Faulty usage
•
Faulty connection
3
Phone: 800.894.0412 - Fax: 888.723.4773 - Web: www.clrwtr.com - Email: [email protected]
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