Johnson Controls FRICK QUANTUM HD - Page 152

QUANTUM™ HD COMPRESSOR CONTROL PANEL
OPERATION
090.040-O (MAR 12)
Page 152
receive timeout, or checksum fault is detected on
the Vyper™ communications, for twenty continuous
seconds. While this fault is active, the Frick Interface
Board will send Initialize data requests in order to
reestablish the communications link. All serial input
data is also cleared.
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 present,
the unit will trip and the Quantum™ HD 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 Filter,
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
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™ HD panel will display the
fault message.
Vyper™ Coolant Low Temperature Warning - The
temperature reading for the Vyper Coolant tempera-
ture was less than or equal to this setpoint for its
time delay.
Vyper™ Coolant Low Temperature Shutdown -
The temperature reading for the Vyper Coolant tem-
perature was less than or equal to this setpoint for
its time delay.
Vype™r Coolant High Temperature Warning - The
temperature reading for the Vyper Coolant tempera-
ture was greater than or equal to this setpoint for its
time delay.
Vyper™ Coolant High Temperature Shutdown -
The temperature reading for the Vyper Coolant tem-
perature was greater than or equal to this setpoint
for its time delay.
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™
logic if the symptom that created the fault corrects
itself. The Quantum™ control tracks these self-clear-
ing faults, and if a total of fi ve faults occur within a
one hour period of time, a compressor shutdown will
occur.