PS 1 – LCD
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2.0 General product specifications, characteristics, and optional
modes of operation
2.1 Product specifications
The pump control unit PS1 - LCD N is utilized for automatic level control/regulation of liquid levels.
The liquid level is alternatively determined by impact pressure, supply of air, an external sensor
(4-20 mA), or floating switch. The motor contactor directly triggers a pump up to max. 5,5 KW rated
power. Additionally, there are 2 relay contacts available to display fault reports. Operation and
adjustment are fairly easy. Switching points, times, and motor current limit will be adjusted by a
digital potentiometer. All values can be checked on the LC – display. LED’s signal operational status
and fault messages. Push buttons for the functions Hand – 0 – Auto are still available.
2.2 Characteristics
- LCD plain text display - Thermal and electrical control of the pump
- Hand - 0 - Auto functions - Deactivation of pump through stop level and stop delay.
- Acknowledgment button - Electrical control of motor current
- Control of operating time - Control for rotating field- und phase cancellation
(to be activated in the menu)
- Forced activation of pump - Variable start-delay
- Internal acoustic alarm - Collective fault signal voltage free and non-isolated 230V~
- High-water alarm - Memory amount of pump activations
- Operating hour meter - Amperemeter
- High stability - Simple operation
- Atex - Mode - Service – Mode
- When running in manual mode the pump shuts down automatically after 2 minutes
- Determination of level is achieved alternatively through internal pressure converter, external
4 – 20 mA Level sensor or floating switch.
- Select effective range of the external 4 – 20 mA level sensor over the menu in the range
between 0 – 10 m
- Connection to remote-control system through digital and analog plug-ins and outlets
- All settings and fault reports will stay available after a power outage
- All functions of previous versions and terminal connections remain the same
- Reserve inputs for remote action module, timer, or others
(will only be included into the program if needed)
NEW ! NEW included in delivery!
- Input for floating switch dry run protection
- Analog outputs 0-10 V and 4-20 mA
- Fault memory stores the last 4 faults
- Automatic display illumination switch off (after 2 minutes) can be disabled.
- Mains-independent alarm (only for standard version)
2.3 Optional functions and components
(Only included in delivery if explicitly stated in your order)
- External interlock (In this case, the dry run protection is omitted)
- The display indicates maintenance
- Integrated main switch
- Integrated mechanical switch for motor protection
- Additional pressure sensor for redundant high water alarm with activation of the pump.
