Pump controller type ABS PC 441

Main benefits

Operates as a standalone monitoring unit
Connects to a CA 511 graphical display to provide a full user interface for viewing and setting all parameters
Minimizes operating costs and increases pumping station availability
Connects to any Supervisory Control and Data Acquisition (SCADA) or telemetry system supporting the Modbus or Comli communication protocols

Main applications

Monitoring and controlling municipal wastewater pumping stations
Viewing alarms, manually controlling pumps, and changing settings, either locally via the graphical user interface or using the AquaProg software
AquaProg software can be used for backing up the controller settings on the hard disk and also for downloading alarms, events and historical data

Users can operate the PC 441 as a standalone monitoring unit. Alternatively they can run the AquaProg configuration software on a PC connected directly to the local service port or remotely, such as via modem. Settings are password-protected at two levels in order to avoid unauthorized or accidental changes.

Five additional units can be connected for more advanced monitoring:

CA 441: Moisture monitoring unit for connecting four pumps with combined alarms or three separate alarms using one unit per pump
CA 442: Temperature monitoring unit for connecting four pumps with combined alarms or four separate alarms using one unit per pump and a separate mA input for a vibration sensor
CA 443: Electrical supply and consumption monitoring, as well as measuring device for a complete station and/or one per pump
CA 622: Communication unit for sending and receiving information to peripheral products via RS 485 Modbus interface
CA 781: Expansion unit for connecting an extended number of pumps

The PC 441 offers two possibilities for level sensing:

Connection of hydrostatic or other devices with 4 to 20 mA signal
Float switches

Main design features

Pump start/stop based on:
Level set point, random start level, speed of level change, tariff control, alternative stop level, remote communication, pump stop after max. runtime setting, cyclic pump motion timer

Pump alternation: normal or asymmetrical
Pump run confirmation via motor current or contactor feedback
Emergency pump run timer on high float
Overflowcalculation and monitoring
Pulse frequency to analog, value conversion (energy/rain/flow inputs)
Alarm dial-up
GSM/SMS alarms
GPRS modem support
Modbus and Comli communication protocols
Analog data logger: 16 channels, 1–60 minutes/sample.
Values measured: Level, motor current on P1/P4, inflow/outflow, pressure, motor, bearing

Temperature (Pt 100) on P1/P4, calculated energy/rain/flow
Digital Data logger: P1/P4 on/off, alarms on/off/acknowledged
Real Time (RT) clock for date and time, with 6 h internal backup
Inflow calculation
Outflow calculation
Pump capacity calculation and alarm
Personnel alarm
Auto pump reversal
Pump exercising (forced start)
Auto reset motor protector

Key characteristics

Advanced monitoring of one to four pumps
Advanced control of one to four pumps
Communication via GPRS, GSM, telemodem or cable
Logging of analog signals, digital signals and alarms
Level sensing by 4-20 mA sensor of float switches
Mixer and flush valve control
Advanced pump capacity and outflow calculation with alarm handling
Overflow measurement
DIN rail mounted

Case studies

Revolutionizing pumping station control
Sulzer-led award-winning project improves performance and control of sewage pumping stations.
Smarter control of wastewater pump networks transforms performance, reliability and cost-efficiency
Data flows faster than water, providing a stream of optimization opportunities. The latest in control technology allows pumping stations and wastewater treatment facilities to talk to each other, providing a better picture of real-time conditions and enabling smarter, more proactive management of the whole network.
Case studies
Wherever fluids are pumped, mixed, controlled or applied, we are there. See how our solutions create value for customers and learn how we can make your pumping and mixing processes more efficient and profitable, safeguarding your production and ensuring lasting reliability.

Documents

Commercial waste disposal from toilets
Commercial wastewater from toilets comprises all sewage water flushed from toilets on commercial, industrial or public properties.
Commercial wastewater without toilet waste
Commercial wastewater without toilet waste includes drainage and grey wastewater.
Flood control
Climate change is challenging natural disaster prevention. When water runs off the land in large quantities, Sulzer’s comprehensive range of pumps provide reliable, cost effective and efficient solutions for flood control.
Inlet pumping station
Inlet pumping stations are somewhat similar to large terminal pumping stations. Depending on the depth of the incoming sewer, the lifting heads can range from around 2 up to 30 meters. To prevent hydraulic shock loads, which negatively impact the biological process, the stations often make use of variable-speed drives and/or several pumps in parallel.
Network pumping station
Network pumping stations collect municipal wastewater from residential homes and communal schemes. Installed in dry or wet wells, the pumps deliver the effluent to a terminal pumping station. Since most pumping stations are not equipped with screens, the pumps must cope with difficult materials such as fibrous sanitary and packaging items.
Outlet pumping stations
Outlet pumping stations are required when the level of the treatment plant is lower than that of the receiving water. This is especially true when discharging into a river, which can rise during heavy rain or flood periods, or into the sea, where the level varies with the tide. Outlet pumping stations may also be needed to compensate for increasing frictional losses in the outgoing pipe at high flows, for example in long sea outfall pipes.
Storm water pumping station
During heavy rainfall, storm water pumping stations deliver large volumes of water at low head to receiving surface waters or sewers. Having long been a part of flood management, they are increasingly involved in climate adaptation strategies for low-lying coastal cities.
Storm water retention tank
Storm water retention tanks act as a buffer during periods of heavy rainfall. This is increasingly important as areas become more developed, with hard surfaces such as roofs, roads and parking lots that cannot absorb the rainwater. When storm water retention tanks are implemented, gravity or pumps can be utilized to provide a reduced continuous flow into the sewer system. Sulzer expertise makes it possible to avoid peak hydraulic loads and to limit the stresses on existing sewer systems.
Terminal pumping station
Terminal pumping stations receive municipal wastewater from network pumping stations. Installed in dry or wet wells, the pumps forward the medium to a treatment plant for final purification. Due to the lack of screens at most pumping stations, difficult materials such as fibrous sanitary and packaging items are a constant threat to uptime.