WEG SSW900 Applications Manual
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WEG SSW900 Applications Manual

Pump cleaning
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Motors | Automation | Energy | Transmission & Distribution | Coatings
Pump Cleaning
SSW900
Application Manual

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Summary of Contents for WEG SSW900

  • Page 1 Motors | Automation | Energy | Transmission & Distribution | Coatings Pump Cleaning SSW900 Application Manual...
  • Page 3 Pump Cleaning Application Manual Series: SSW900 Language: English Document: 10008639547 / 00 Publication Date: 05/2021...
  • Page 4 Summary of the Revisions The information below describes the revisions made to this manual. Version Revision Description First edition...

  • Page 5: Table Of Contents

    Table of Contents 1 PARAMETER STRUCTURE ..............1 2 FAULTS AND ALARMS ................2 3 GENERAL INFORMATION ..............3 3.1. ABOUT THE MANUAL ........................3 3.2. ABOUT THE PUMP CLEANING APPLICATION ................3 4 RECOMMENDED SET-UP ..............4 4.1. COMMANDS BY DI VIA SOFTPLC ....................4 5 PARAMETER DESCRIPTION ..............

  • Page 7: Parameter Structure

    Parameter Structure 1 PARAMETER STRUCTURE Level 1 Level 2 Level 3 Page Status SoftPLC S6.1 SoftPLC Status S6.2 Scan Cycle Time S6.2 Output Value S6.4 Parameters Settings SoftPLC C11.3 Parameters SSW900 | 1...

  • Page 8: Faults And Alarms

    - SoftPLC application is stopped (C11.1 = Stop SoftPLC Application Applications). Stopped - SoftPLC status (S6.1.1) indicates that the application is incompatible with the SSW900 firmware version. A750 Clogging Detected It indicates that clogging has been detected through the pump motor high current.

  • Page 9: General Information

    3.2. ABOUT THE PUMP CLEANING APPLICATION The Pump Cleaning application, developed for the SoftPLC function of the SSW900 Soft-Starer and based on the existing Pump Genius Simplex of the CFW-11, allows unclogging the pump in order to prevent it from reaching the complete clogging, which would prevent the pump operation.

  • Page 10: Recommended Set-Up

    Coordination Type 1 – use a circuit breaker for short circuit protection on the input circuit. Use a shunt trip on the circuit breaker to open the circuit breaker via digital output of the SSW. Optional. Coordination Type 2 – use aR high speed fuses for semiconductor protection. SSW900 | 4...

  • Page 11: Parameter Description

    Parameter Description 5 PARAMETER DESCRIPTION Only the user parameters of the SoftPLC Application will be described here. For more details on the other parameters of the SSW900, see the SSW900 Programming Manual. 5.1. STATUS 5.1.1. S6 SOFTPLC Status parameters related to the SoftPLC.
  • Page 12 Factory Setting: Properties: Stopped Description: This parameter defines the logic execution mode for unclogging the pump driven by the SSW900. Indication Description It defines that the pump unclogging will not be executed, that is, it is disabled. 0 = OFF...
  • Page 13 To perform the pump unclogging, it is necessary that the SoftPLC function control the motor drive and direction of rotation to make the pump run in the reverse pumping direction. Therefore, it was defined that the pump unclogging will only work with the SSW900 operating in REMOTE mode and with the SoftPLC as command source.
  • Page 14 Cleaning is disabled, or the pump is turned off, the clogging event counter is reset. C11.3 Parameters C11.3.12 Run/Stop DI Mode Adjustable Range: 0 ... 1 Factory Setting: Properties: Stopped Description: It configures whether the Run/Stop command via DI is a 2-wires or 3-wire command. SSW900 | 8...
  • Page 15 1 = Timer Control It defines that the Timer Control is the application that will run on the SoftPLC. 2 = Pump Cleaning It defines that the Pump Cleaning is the application that will run on the SoftPLC. SSW900 | 9...

  • Page 16: Operation

    10 – The time with the pump running in the reverse direction (C11.3.5) elapses and the command to switch off the pump is triggered. At this moment, the counting of the time with the pump stopped (C11.3.8) starts; SSW900 | 10...

  • Page 17: Unclogging With Command Via Digital Input Di3 (C11.3.2 = 2)

    Figure 6.2– Pump unclogging operation with command via digital input DI3 1 – The pump is being driven by the SSW900. At a given moment, digital input DI3 sends a command to execute the pump unclogging, that is, digital input DI3 goes from logic state "0" to logic state "1". Then, the command to stop the pump is executed so that the process to unclog the pump starts.

  • Page 18: Unclogging When Detecting Pump Clogging (C11.3.2 = 3)

    Figure 6.3 - Pump unclogging operation when pump clogging is detected 1 – The pump is being driven by the SSW900. At any moment, the motor current exceeds the motor overcurrent value set to detect the pump clogging (C11.3.9), and the time to detect the pump clogging (C11.3.10) begins to count;...
  • Page 19 13 – The time with the pump stopped (C11.3.8) elapses, and it is checked whether the number of cycles (C11.3.3) has reached the end, or if one more cycle should be repeated. If it has reached the end, the command to start the pump normally is triggered. Otherwise, steps 6 to 11 are repeated. SSW900 | 13...

  • Page 20: Troubleshooting

    C3.3 = 3 (REM command = SoftPLC) C4 - I/O C4.2.3 = 14 (DO3 = Circuit Breaker Trip) C11.3.2 = 1, 2 or 3 (Mode) C11.3.12 = 0 (Run/Stop 2-wire), 1 (Run/Stop 3 wires) Check via HMI if it is in “Rem”. SSW900 | 14...

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