Overview

For some pumping applications, it may be necessary to monitor the volume of flow or fault on a specified level to prevent overfill or other reasons. The H100+ drive has the capability to display an accumulated volume and shut down or provide a warning based on a set volume level. A flow meter must be connected to the analog or pulse input for this function to work. Flow monitoring can be performed with or without PID control enabled.

Programming

Flow Meter Setup

• AP4-30 = 1 (Yes) – Enables the Flow Control function and allows access to other AP4 parameters.
• AP4-31 = Flow Meter Source – Selects where the flow meter is connected to the drive.
• AP4-32 = Flow Rate Monitor – Used for monitoring ONLY the current flow rate. 
• AP4-33 = Turbine Scale – Sets the PPG (pulses per gallon) when AP4-31 is set to Pulse type.
• AP4-34 = Flow Unit 0% – Sets the flow rate equivalent to 0% when AP4-31 is set to an analog input.
• AP4-35 = Flow Unit 100% – Sets the flow rate equivalent to 100% when AP4-31 is set to an analog input.
• AP4-36 = Flow Rate Selection (Units) – Sets the units of the flow meter.
  • 0: gl/m
  • 1: gl/h
  • 2: f3/m
  • 3: m3/h
• AP4-37 = Flow Decimal Point – Sets the number of decimal places for the flow meter.

Accumulated Volume Monitoring

Use the following parameters for monitoring the accumulated volume:

• AP4-38 = Accumulated Level Millions – Displays the millions place of the accumulated volume based on the digits selected in AP4-36 (Flow Rate Selection – Units).
• AP4-39 = Accumulated Level Thousands – Displays the thousands place of the accumulated volume based on the digits selected in AP4-36 (Flow Rate Selection – Units).
• AP4-40 = Accumulated Level Ones – Displays the ones place of the accumulated volume based on the digits selected in AP4-36 (Flow Rate Selection – Units).
• AP4-41 = Accumulated Level Decimal – Displays the decimal place (hundredths) of the accumulated volume based on the digits selected in AP4-36 (Flow Rate Selection – Units).
• CNF-69 = Total Volume – Displays the total volume (no decimal).

Resetting the Accumulated Volume

To reset the accumulated volume, set AP4-30 = 2 for “AccumRst → Yes”. Parameters AP4-38 through AP4-41 can also be modified or set back to zero. The accumulated volume will also reset after a trip when AP4-54 = Trip & Reset Accumulation.

Accumulated Volume Warning

For an Accumulated Volume warning (AccumFlow Warn) to occur, set the following parameters.

• AP4-54 = Warning – Enables a warning message when the accumulated flow rises above the level set in AP4-50 through AP4-53.
• AP4-50 = Set Accumulated Level Millions – Sets the millions place for an Accumulated Volume warning to occur.
• AP4-51 = Set Accumulated Level Thousands – Sets the thousands place for an Accumulated Volume warning to occur.
• AP4-52 = Set Accumulated Level Ones – Sets the ones place for an Accumulated Volume warning to occur.
• AP4-53 = Set Accumulated Level Decimal – Sets the decimal (hundredths) place for an Accumulated Volume warning to occur.

A digital output programmed for “48” Accum Level will energize when an Accumulated Volume Warning occurs.

Accumulated Volume Trip

For an Accumulated Volume trip (AccumFlow Trip) to occur, set the following parameters.

• AP4-54
  • = Trip & Coast – Enables a trip when the accumulated flow rises above the level set in AP4-50 through AP4-53. The fault cannot be reset unless the accumulated volume is less than what’s set in AP4-50 through AP4-53.
  • = Trip & Reset Accumulation – Enables a trip when the accumulated flow rises above the level set in AP4-50 through AP4-53. The current accumulated level (AP4-38 through AP4-41) will be reset back to zero.
• AP4-50 = Set Accumulated Level Millions – Sets the millions place for an Accumulated Volume trip to occur.
• AP4-51 = Set Accumulated Level Thousands – Sets the thousands place for an Accumulated Volume trip to occur.
• AP4-52 = Set Accumulated Level Ones – Sets the ones place for an Accumulated Volume trip to occur.
• AP4-53 = Set Accumulated Level Decimal – Sets the decimal (hundredths) place for an Accumulated Volume trip to occur.

A digital output programmed for “48” Accum Level will energize when an Accumulated Volume trip occurs.