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pump control unit |
The Pump Control Unit (PCU001) is a microprocessor-based controller that may be configured to pump down for pump or lift stations, or may be configured to pump up for water well/tank installations. Feature packed, the only thing needed to complete the pump station controls is a primary level device, starters and breakers. The unit is user-installable, and may be configured from touch keys on the unit or by downloading from a laptop.
TAC II Telemetry interface
The Pump Control Unit is easily upgraded to a Radio Telemetry SCADA System by converting the Pump Control Unit to a TAC Pack with the addition of a radio backpack. This easily transforms a control panel into an RTU, which provides the link with the TAC II telemetry SCADA system.
Multiple Level Input Types
The Pump Control Unit provides interfaces to several industry standard level sensing devices, such as the following:
Motor Starter Outputs
Solid-state AC relays directly control up to three motor starters with 120 or 240VAC coils.
Pump Alternation
The Pump Control Unit not only performs pump alteration, but also alternates around pumps that are out of service.
Fail-Safe HOA Switches
Fail-safe Hand-Off-Auto switches remain functional when the PCU is powered-down.
Phase Monitor
On-Board 240VAC Monitor and External 480VAC Monitor Input.
Alarm Light & Alarm Bell Outputs
Alarm light and bell enunciate phase faults, high- and low-well, and internal PCU fault. Alarm light is activated by all other alarms.
Connectorized Wire Terminals
Two industry-standard 24-pin terminal connectors allow servicing or replacement of the PCU without rewiring the control panel.
LED Status Indicators
Ultra-bright LEDs (visible in daylight) are used to display status.
LCD Display & Keypad
A 16 character LCD displays status, alarms and configuration through a menu-style interface. The three-button-keypad is used to scroll through the displays.
Elapsed-Time & Average-Run-Time Displays
The LCD displays an Elapsed-Time Meter and Average-Run-Time Meter for each pump. Each timer can be reset through the service port. Data for the timers is stored in nonvolatile memory.
Auxiliary Input & Output
The auxiliary input and output can be configured to provide redundancy in a bubbler system The input monitors an air-flow-fault switch to activate a backup bubbler compressor. The auxiliary input and output can also be used as a programmable time delay relay.
Flow Totalization
Station total flow is computed from the well volume and time to pump from off to lead level. Total flow will roll over after 999999 units (gal, liters, cf, etc.). These may be collected via the service port and reset when desired. Flow totalization is also available via the TAC II telemetry system.
User-Configurable
Station Variables: The number of pumps, level-sensor type, and pumping method, etc., are entered into the PCU to customize its operation.
Through Keypad, Service Port, or Telemetry
A three button keypad is provided as the main method of configuration input. Configuration information can also be transferred to the PCU through an RS-232 service port or over a radio link using TAC II telemetry equipment.
Configuration Stored in an EEPROM
Configuration information is stored in an EEPROM (Electrically Erasable Programmable Read Only Memory). This memory is non-volatile, allowing the Pump Control Unit to retain configuration information even during extended power outages and servicing.
Box Dimensions
5.88" X 8.88" X 5.06"
Analog Input
4-20mA@250ohm /1-5V @100Kohm
Digital Input Voltages
10 - 30 volts AC/DC
30 - 300 volts AC/DC with voltage reducers
Input Protection
M.O.V., Transorb, and Opto-isolated
Digital Input Impedance
6K ohms
Power Consumption
20 Watts
Supply Voltage
115VAC (230VAC factory opt.)
Communications Interface
VHF, UHF, 900MHz, & telephone line capability
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