Johnson Controls FRICK QUANTUM LX Operation page 108

090.022-O (MAY 12)
Page 108
VSD Single Phase Input Power Fault – The Vyper's™
SCR Trigger Control board contains circuitry that
checks the three-phase mains for the presence of all
three line voltages. If all line voltages are not pres-
ent, the unit will trip and the Quantum™ LX Panel will
display this message.
VSD Stop Contacts Fault - This fault occurs if the
No Fault signal from the Vyper™ is low. It indicates
a fault is present at the Vyper™ or the Harmonic Fil-
ter, but the communications data contains no Vyper™
fault data for twenty seconds. The Frick Interface
Board will send Initialize data requests while this fault
is active.
VSD 105% Motor Current Overload Fault – The
Vyper™ Logic Board generates this shutdown by
reading the current from the 3 output current trans-
formers. The shutdown is generated when the
QUANTUM™ LX COMPRESSOR CONTROL PANEL
OPERATION
Vyper™ Logic board has detected that the highest of
the three output phase currents has exceeded 105%
of the programmed 100% full load amps (FLA) value
for more than 40 seconds. If this is detected, the unit
will trip and the Quantum™ LX panel will display the
fault message.
Vyper™ Fault Limit Reached Shutdown - The
Vyper™ Logic Board generates faults as they occur.
If these faults are not of a potentially destructive na-
ture, they are automatically cleared by the Vyper™