Tornatech GPU, Руководство по установке и обслуживанию, Страница: 27 / 67

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- Loss of power: Activates when a complete loss of normal power is detected.
- Lock Rotor Current: Activates when a locked rotor condition has been detected on the normal power. Note that the
motor will not be permitted to start on the normal power as long as this alarm has not been reset from the alarms
page.
- Alternate Lock Rotor Current**: Activates when a locked rotor condition has been detected on the alternate power.
Note that the motor will not be permitted to start on the alternate power as long as this alarm has not been reset
from the alarms page.
- Fail to start: Activates if there is and under-current draw of two phases when the motor should be running. A 20
seconds factory set delay is used to give the motor enough time to start before signalling this alarm.
- Transfer Switch Trouble**: Activates upon detection of any of the following incoherent transfer switch data:
The alternate position and normal position limit switches are both activated. None of the alternate position or the
normal position limit switches is activated after a factory programmed delay. The voltage reading on the load side of
the motor contactor does not match the one of the reported input power position after a factory programmed delay.
- Service Required: Activates when service is due for the controller. This occurs when the date set in the service
page has passed or if no service has ever been done.
- Undercurrent: Activates when current is under 30% of FLA and motor has been running for 15 seconds.
- Overcurrent: Activates when current is above 150% of FLA.
- Under voltage: Activates when normal power voltage is below 80% of nominal voltage.
- Over voltage: Activates when normal power voltage is above 120% of nominal voltage.
- Phase Unbalanced: Activates when there is a difference of more than 30% of nominal voltage between the normal
power voltage readings.
- Ground Fault: Activates when the ground fault input current is above the factory set value after a factory set delay.
- WT CI Not Reached: Activates if the Cut-In is not reached during a manual run test or a weekly test timer. At the
end of the 255s timer, if the Cut-In is not reached, the test may still be successful at starting the motor if the
pressure has dropped by at least 5 PSI.
- WT Check Solenoid: Activates if the pressure does not drop a minimum of 5 PSI during the manual run test or the
weekly test. Indicates a failure with the Test Solenoid Valve.
- PT Fault Detected: If an optional dual pressure sensor is installed, it will be activated if the two pressure
transducers show different readings. Further investigation is advised to determine what caused the different
readings. Note that the controller will always choose the lowest pressure reading to determine the actual system
pressure.
- Overpressure: Activates if the analog readout of the discharge pressure goes higher than the overpressure set
point in the discharge pressure sensor page.
-
Underpressure: Activates if the analog readout of the discharge pressure goes lower than the “Under Pressure”
set point in the discharge pressure sensor page.
- Low Suction Pressure: Activates if the analog readout of the suction pressure is enabled and goes lower than the
low suction pressure set point in the suction pressure sensor page.
- Force start on flow: Activates if an external contact triggers flow switch input or if the analog readout of the flow is
enabled and goes high
er than the “force start on flow set point” in the flow sensor page.
- Low Spare Temperature: Activates if the analog readout of the spare temperature input is enabled and is lower