Pump control CPS10/CPS20

The controls are ready for operation as soon as the direction of rotation has been checked successfully. The current level is shown on the display. Press the toggle key to display motor currents, system voltages as well as the hours of operation in sequence.

The zero reference point can be corrected and lowered by up to 1 mwc as well as raised by as much as 20% of upper range value. It is possible to subsequently alter or correct the level display without any difficulty. Values are entered and displayed in cm steps, the display in mwc.
The standard setting of the measurement range for pneumatic sensing is 2.50 mwc. It is possible to make the settings without having to fill the basin first.
The value of the analogue output changes in line with this scaling; the maximum value corresponds to 20 mA.

All limit value settings to switch the pumps and issue alarm signals are defined in cm steps. The switching operations of the pumps are executed within the set times. To protect the pumps when in operation the motor current and system voltage are monitored continuously.

Changeover (based on time or cyclic) that sees the limit value contacts alternated, ensures even wear and tear of the connected pumps.
If the rated current is exceeded, the fault-actuated changeover function activates the redundant pump and deactivates the faulty pump.

It is possible to assign a measurement range to the analogue output. 4 mA corresponds to the set zero reference point.
Uninterrupted monitoring of the measurement system facilitates a high level of operational reliability.
Fault events, e.g., falling below the corresponding set zero reference point (e. g. I < 4 m A) or exceeding the measurement range (e. g. I > 22 mA) are indicated by an alarm.

All fault messages and the frequency with which they occur are saved to memory so they can be viewed and reset at a later point in time.

It is possible to configure all functions using just three buttons – with all configuration settings fully menu-assisted for user convenience.
It is also possible to configure the parameters via a PC.
All parameters can also be set ex-works free of charge, on request.

Configuration software CPSDat

The configuration software CPSDat makes it even easier for the user to configure the pump controllers CPS 10 and CPS 20 as well as to archive data.

Functions

Level sensing, optional:

  • Electronic, continuous (4-20 mA)
  • Pneumatic, continuous via integrated pressure sensor; available as open or closed system
  • Integrated / external pressure switch
  • Float switch

Measured value display:

  • Level
  • Motor current
  • System voltage of 3 phases
  • Operating hours

Monitoring and protection:

  • On / off level control of pump(s) and high water alarm
  • 3-phase voltage monitor (undervoltage)
  • Phase failure monitor
  • Direction of rotation (phase sequence)
  • Max. motor current (overload)
  • Min. motor current (dry run)
  • Motor temperature (2-stage contact / PTC thermistor)
  • Motor gasket
  • RCD (external)
  • Maintenance intervals for pumps

Control:

  • Fully automatic, level-regulating control of pumps
  • Integrated manual off, automatic switch
  • Base-load with fault-actuated changeover
  • Changeover cyclic or based on operating hours
  • On-delay following line voltage failure
  • On-delay for pump 1 and pump 2 during pumping process
  • Separate off-delay / overrun time for pumps 1 and 2 (e.g. in hydrostatic pressure switch)
  • Max. pump running time for pumps 1 and 2 (e.g. monitoring for blockages)
  • Positive on function (prevents pumps jamming)
  • Emergency operating mode for one pump
  • Data loss protection

Signalling:

  • LC display and LED indicate operation/fault/alarm
  • Displays current fault message(s) in plain text
  • Displays fault memory and frequency of individual alarms
  • Displays switching intervals
  • 7 potential-free individual and group status messages
  • Mains-independent alarm system (optional)
  • Flasher output for fault messages
  • Analogue output 4-20 mA for level
  • Serial interface

Technical data


Memory

Output current 4-20 mA, load max. 300 W
System type TN-C-S system
Control voltage 230 V/50 Hz und 15 V/DC
Backup fuses max. 3*20 A
Motor rating max. 1*(bzw. 2*) 5,5 kW
Input pressure 0...2,5 mWS oder 0...10,0 mWS
Hose connection open system Quick-fit connection 8 mm for PE tube 8/6x1mm
Hose connection closed Bite-type fitting 8 mm for PA tube 8/2x3 mm
Digital inputs Inputs partly opto-decoupled
Digital-Outputs Relay 1 1 CO, closed-circuit principle
Digital-Outputs Relay 2- Relay 5 1 NO
Auxiliary voltage 230 V/50 Hz, 1 A max. 15 V DC / max. 100 mA
Operation voltage 400 V/50 Hz (3 Phase + N + PE)
Input current 4-20 mA
Switching capacity 250 V/50 Hz, 2 A max. 250 VA
Housing Polycarbonate
Degree of protection IP 55 / IP 54
D/A-transformer 8 bit resolution
Parameters EPROM / EEPROM

Display

Display Alphanumeric LCD, 2 line, 16 characters, backlit

Input

A/D-transformer 10 bit Auflösung