Pulsafeeder Pulsa Series Cruise Control - Manual (Page 9)

5. Panel External Controls
The following information is for reference on intended operation. Please consult with the Project Engineer for
any changes or procedures specific to your installation.
Note that your panel may contain options or changes to satisfy certain specifications that are not
described here.
• Motor Start Hand/Off/Auto Position Selector Switch:
When this selector switch is in the Hand position, the pump motor will start based on the Start/Stop selector
switch. See below for Start/Stop selector switch operation. If no Start/Stop selector switch is included, the
pump motor will run in the Hand position as long as no fault condition exists.
During normal operation if a fault occurs or a motor overload is detected, the motor will stop and will restart
once the fault is cleared. The motor will continue to run as long as this switch remains in the Hand position.
When this selector switch is in the Off position, the pump motor will stop, whether from the Auto or Hand
position. No condition will start this motor unless this selector switch is moved to another position.
When this selector switch is in the Auto position, the pump motor will run when directed from the main
control system or PLC. The PLC signal will trigger an internal relay in the panel, when necessary, to activate
the pump. The pump will continue to operate until the PLC removes this signal or a fault condition occurs.
• Start/Stop 2 Position Selector Switch:
When this selector switch is in the Start position, the pump motor will start as long as there is no fault
condition or motor overload. During normal operation if a fault occurs or a motor overload is detected, the
motor will stop, and will restart once the fault is cleared. The motor will continue to run as long as this switch
remains in the Start position.
When this selector switch is in the Stop position, the pump motor will stop, whether from the Auto or Hand
position. No condition will start this motor unless this selector switch is moved to another position.
• Pump Running Red Pilot Light
Illuminates when the pump is signaled to run and stays on while the pump is activated. If the light turns off,
the pump has stopped. If a fault condition occurs, the pump running light will turn off and re-illuminate once
the fault condition is cleared and the pump is signaled to run.
• Pump Stopped Green Pilot Light
Illuminates when the pump is not signaled to run and stays on while the pump is off. If the light turns off, the
pump has started! A fault condition will have no effect on this light's operation.
• System Fault Amber Pilot Light
Illuminates when the system experiences a fault condition. This will also cause the fault relay to latch, and
the pump will stop. The fault light will not go off until the fault condition is removed and the Fault Reset
pushbutton is depressed.
• Diaphragm Leak Amber Pilot Light
Illuminates when the system experiences a diaphragm leak condition. This will also cause the appropriate
relay to latch, and the pump will stop. This light will not go off until the fault condition is removed and the
Fault Reset pushbutton is depressed. This fault will also signal the System Fault light.
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