Sequetrol compact LED

Compact and reasonably priced Controller for small Sequential Batch Reactor (SBR) Wastewater Treatment plants.

Sequetrol compact LED Features

  • Easily programmable
  • Adjusting of the step times can be done on-site using three buttons on the printed circuit board
  • Keeps record of last performed step in an event of mains failure
  • 5 relay switches (230V)
  • Acoustic alarm and mains failure signalization
  • The compact Control Unit stands out thanks to its great price performance ratio
  • Reliable technology proven in thousands of installations
  • Create powerful programs with ease – no coding skills needed, just edit an Excel® table
  • Individually equipped (display, keypad, connectors) according to customer requirements
  • Integrated operating hours counter
  • Automatic release of residual pressure in the valve unit
  • Updateable firmware and software
  • Design of the front-panel according to customer preference

The Sequetrol® compact has been developed as a comfortable but economically priced Control Unit.

Equipment

The Sequetrol compact LED offers features like acoustic signaling of predefined conditions, a process permanently stored in the EEPROM, and a set of batteries to ensure continuous signaling during power outage.
When the control sequence is interrupted due to mains failure, the unit will automatically resume operation with the last unfinished step instead of restarting the program.
Utilizing the three buttons on the circuit board, the sequence timing can be readjusted at the installation site, resulting in an increased flexibility in adapting the Sequetrol® compact LED to the individual requirements of the plant.
Build-up of residual pressure in the valve unit is prevented by stopping the compressor before closing the valves. Timing is individually adjustable for each program step (0 - 14s).

Connections
  • A digital input is available to connect a float-switch or another sensor.
  • Up to 5 relay outputs for 230VAC offer a comfortable connection of solenoid valves, diaphragm compressors or other loads.
Programming

The programming process was designed to meet the requirements of practical, real-world use. 

The Control Unit will be delivered ex-factory already pre-programmed according to customer requirements. Firmware updates and sequence program changes can be performed with the aid of an inexpensive programming device. This feature makes the Sequetrol® compact LED “future-proof” and ready for possible changes of the legal situation.

No programming experience or any special software is needed.

The sequence program can be easily created or modified using a ready-made spreadsheet table (Excel®).
 

Standard models are available in any quantity. Please refer to the Order Reference table for standard models. Besides the standard models, customer specific versions / configurations are available at an MOQ of 100 units per year. On request and at reasonable quantities, customer specific control units based on this control unit can be derived. For example, another casing, a different I/O configuration or similar changes, can be performed. Please please inquire according to the the Order Reference table for customer specific models.

Order Reference Standard models

Standard models are available in any quantity.
Standard Models Sequetrol compact LED
    SD-EBA CCB
General Valves -
  Alarm Buzzer
Outputs Blower Relay 1 0.35m cable without connector
  Valve relay outputs 4 1m cables, GDM connectors
  Low voltage relay contact -
  Output for BonFlash alarm lamp or BonAlarm alarm forwarder -
Input Digital input 1
  Analog input -
Other features Pressure monitoring -
  Current measurement -
  Wi-Fi -
  2/4G -
  USB interface -
  Equipment components Mains cable: 1m + CEE 7/7 plug
    1x non-rechargeable battery (mains failure signalization)

Order Reference Table for customized models

Customer specific versions / configurations are available at a MOQ of 100 units per year.
Customer Specific Versions Sequetrol compact LED
Relay outputs 230V Digital input Sensors Mains connection Output connections Battery
3rd digit 4th digit 5th digit 6th digit 7th digit 8th digit
A: 1 blower (max. 300VA) 0 valve/aux 0 BonFlash outputs A: no DI N: no pressure sensor no current sensor A: no screw terminals inside unit only A: no screw terminals inside unit only A: no
B: 1 blower (max. 300VA) 1 valve/aux 0 BonFlash outputs B: 1x DI   B: 190cm + CEE 7/7 plug B: blower 0.35m cable w/o connector Valve/Aux 180cm cables+GDM connectors B: non-rechargeable battery for mains failure signalization
C: 1 blower (max. 300VA) 2 valve/aux 0 BonFlash outputs     C: 90cm + CEE 7/7 plu C: blower 0.35m cable w/o connector Valve/Aux 100cm cables+GDM connectors  
D: 1 blower (max. 300VA) 3 valve/aux 0 BonFlash outputs       D: blower 0.3m cable + CEE 7/3 socket NO Valve/Aux cables  
E: 1 blower (max. 300VA) 4 valve/aux 0 BonFlash outputs       Z: cable lengths and connectors upon customer request  
F: 1 blower (max.300VA) 4 valve/aux 1 BonFlash output          

Technical Data Sequetrol compact LED

SBR runtime / process logic programmable
Technical Data Sequetrol compact LED
Attribute Values
Dimensions (l x w x h) 155mm x 113mm x 76mm
Weight 0.70kg
Ambient temperature -20°C to +55°C
Protection classification / UV-Resistance (casing) IP 55
Functions, process, alarms, display mes- sages, web pages All according to customer request and require-ment.
  Processes are designed and adapted by the wastewater treatment plant manufacturer by means of an Excel-chart
Display Bright LED-display, 6 digits
Signal-input Digital input for float switch or other sensors
Data interface RS-232
Electrical output According to customer request, up to 5 relays e.g. 230V / 300VA
Power supply during mains failure Standard camera battery
Power supply 230VAC / 1,5VA max.