Johnson Controls FRICK QUANTUM HD, Операция

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QUANTUM™ HD COMPRESSOR CONTROL PANEL
OPERATION
090.040-O (MAR 12)
Page 140
> Motor, and check the DBS Software Version. This
version should read the actual version of the soft-
ware, but a communications loss will return a value
of 0.00.
DBS - Current Unbalance – Either the current be-
tween two phases has exceeded the setpoint value
longer than the time delay setpoint, or there is a volt-
age unbalance between phases, or the SCR operation
is abnormal.
DBS – HEATSINK Over-temperature – Either the
temperature of the heat sink has exceeded the maxi-
mum safe operating temperature of 85 deg. C. or heat
sink cable connection P2 is loose.
DBS – Jam – The current exceeded the Jam Trip level
set point longer than the time delay set point while
in the RUN state.
DBS - Phase Loss – This will occur if there is a loss
of at least one phase of supply voltage or the loss of
at least one phase of current feedback.
DBS - Phase Reversal – Either there is an incorrect
phase order at the DBS chassis input terminals, or
the control power was applied before the three phase
power.
DBS - RTD Overtemperature –The RTD temperature
sensor is out of range.
DBS - RTD Temperature – The RTD temperature
sensor is out of range.
DBS - Short Circuit – The current exceeded 800% of
FLA set point while the motor was starting.
DBS - Shorted SCR – This failure may occur if there
is a defective SCR or a defective bypass contactor.
It may also occur if the motor is disconnected. Also,
inspect the main contacts of the bypass contactor.
DBS - Thermal Overload – Either the calculated
thermal capacity of the motor exceeded 100% of
limit, or the motor is “short-cycling”.
Digital Board 1 Communications Shutdown - It has
been detected that the program is no longer able to
communicate to Digital Board 1.
Digital Board 1 Reset - If a reset of Digital Board 1
occurs, a shutdown will occur to prevent the motor
from restarting.
Digital Board 2 Communications Shutdown - It has
been detected that the program is no longer able to
communicate to Digital Board 2.
Digital Board 2 Reset - If a reset of Digital Board 2
occurs, a warning will be issued.
False Running Fail -- Con fi rmed Running Inp - This
shutdown message is issued if while the compres-
sor is off the compressor auxiliary is energized. While
this condition is present, the Oil Pump (if available)
is on, and Liquid Injection (if available) is allowed on
and the Slide Valve is unloaded to 0% to safeguard
the compressor.
False Running Fail -- Motor Amps - This shutdown
message is issued if while the compressor is off, the
Motor Current reading is above the Low Motor Amps
Shutdown setpoint. While this condition is present,
the Oil Pump (if available) is on, and Liquid Injection
(if available) is allowed on and the Slide Valve is un-
loaded to 0% to safeguard the compressor.
Harmonic Filter DC Bus Voltage Imbalance – The
1/2 DC link voltage magnitude will remain within ±
50VDC of the total DC link voltage divided by two
during the precharge interval for both 60 and 50 Hz
519 fi lters. If not, the Quantum™ HD panel will display
this message.
Harmonic Filter DC Current Transformer 1 – During
initialization, the output voltage of DC Current Trans-
former 1 which sense the fi lter’s input current will be
monitored and compared against a level of ± 147 mv
(± 6010 A to D counts). If the offset error falls outside
this range, the unit will trip and the Quantum™ HD
panel will display this message.
Harmonic Filter DC Current Transformer 2 – During
initialization, the output voltage of DC Current Trans-
former 2 which sense the fi lter’s input current will be
monitored and compared against a level of ± 147 mv
(± 6010 A to D counts). If the offset error falls outside
this range, the unit will trip and the Quantum™ HD
panel will display this message.
Harmonic Filter High Baseplate Temp Fault – The
unit contains one heatsink assembly for the 305 Hp.
The Filter’s power module base plate temperature
will feed the Harmonic Filter Logic board. This tem-
perature is compared in software to a limit of 79°C
and if this limit is exceeded, the unit will trip and the
Quantum™ HD panel will display this message.
Harmonic Filter High DC Bus Voltage Fault – The
harmonic fi lter’s DC link voltage is continuously mon-
itored and if the level exceeds a range of 822 to 900
VDC, a Filter Bus Over-Voltage shutdown is initiated.
Harmonic Filter High Phase A Current Fault – The
unit’s three phases of instantaneous output current
are compared to a prescribed limit, which is con-
tained in the hardware. If the Phase A signal exceeds
the prescribed limit, the fi lter will be inhibited from
operating by inhibiting the Current Regulator Run sig-
nal for fi ve to six input line voltage cycles. If the Phase
A signal exceeds the prescribed threshold three times
in 60 line cycles, the unit will trip and the Quantum™
HD panel will display this message.
Harmonic Filter High Phase B Current Fault – The