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Outputs – Davey Speedman Dual Pump Variable Speed Pump Control System User Manual

Page 39

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39

JP Error Correction (Integral Time)

The error correction is the time it will take to convert a constant error of 1% to
a 1% change on the output. This is useful when trying to close the gap on small
errors that can not be eliminated through the use of the response rate alone.
This value is specific to when the jockey pump is running on the VSD.

It is expressed as a percentage ranging from OFF, 0.1 - 100.0. OFF will disable this part of the PID equation.

JP Overshoot Elimination (Derivative Gain)

The overshoot elimination gain is used to provide a damping effect to
eliminate system oscillation and to minimise overshoot. This value is specific
to when the jockey pump is running on the VSD.

It is expressed as a percentage ranging from OFF, 0.01 – 50.00. OFF will disable this part of the PID equation.

JP ErrorCorr’t (1)
XX.X Seconds

JP OvershtElim (D)
XX.XX %

The Speedman has four main programmable outputs that can be used to communicate with external sources
such as Telemetry or Building Management Systems (BMS). As each system requires different combinations of
information all output relays are configurable in software. All outputs are Voltage Free - Change Over contact
outputs and capable of 5 amps 240 VAC. If the expansion board is fitted four more programmable outputs are
available.
To view which outputs are currently activated view the PUMP DATA LOG menu, under Digital Output State.
The status of the analogue outputs is also available within this menu.

OUTPUTS

Digital Output 1

selection

Jockey Pump Run

Digital Output 2

selection

Any Pump Shutdown

Any output can be programmed

to one of the following.

Shutdown Fault,

Lo Press Fault,

Hi Press Fault,

Any Alarm,

Pump 1 - 6 Run,

Pump 1 - 6 Fault,

System Paused,

Any Pump Shutdown,

Any Pump Running,

No Flow Shutdown,

VSD Fault,

Pressure Trip 1 - 2,

Alternate Trip,

Flow Trip,

Jockey Pump Run,

Aux Output 1 - 3

Analogue

Output 1

selection

VSD Speed

Analogue

Output 2

selection

VSD Speed.

VSD Speed, Flow Rate, System

Pressure

System Pressure