Toshiba P9 User Manual

ADJUSTABLE SPEED DRIVES

P9

LOW

VOLTAGE

SYSTEMATIC AND PRECISE

PUMP CONTROL

The Toshiba P9 adjustable speed drive
(ASD) incorporates Toshiba’s proprietary VLP
Technology®* and directly, precisely, and
linearly controls pressure, temperature, level,
and flow. The P9 eliminates certain obstacles
users assumed were an unavoidable part of
pump control.

• Linearizes Traditional Non-Linear Pump Curve,
Providing Stable & Precise Control
to HVAC Systems

• Solves Problem of Load-Balancing Over
Multiple Fan Plenums or Pump Systems

• Allows User to Configure System in Five
Simple Steps, Providing Complete
Control in Only Minutes

• Self-Calibrates & Eliminates
Common Anomalies

• Maximizes Energy Savings
on Variable Torque Loads

* VLP Technology® as used herein refers to

Virtual Linear Pump technology

Start & Stop Points

Sleep Timer

Run External Device Feature

No-Flow/Low NPSH Cut-Off Feature

Sealing Water/Vacuum Priming Feature

Toshiba’s Proprietary Windows®-Based

ASD Pro Software

Determines when to start and stop the pump based on user-set values

and system feedback on pump water levels, these points work with a delay

timer to help ensure that frequent fluctuations in the system feedback

do not unnecessarily start and stop the pump.

Shuts off fan or pump in order to reduce energy consumption and prolong

the lifespan of equipment after it has run at the minimum for a

user-specified amount of time.

Turns on external booster pumps to support the primary pump when necessary

in order to increase energy savings and to minimize pump and system failures.

Stops the pump once loss of feed water or a closed output valve

has been detected in order to protect against cavitation.

Automatically controls and helps to improve system reliability by monitoring

water flow and water level, and starting the pump once water flows through

the seal or the pump is full of water.

Available at no additional cost, this easy-to-use software can be

used to program and control the P9, to download parameter sets,

and to monitor real-time conditions.

PRACTICAL STARTUP CONFIGURATION

Water

Vertical Multi-Stage

With its intuitive and user-friendly startup, the P9 allows for configuration and optimization of HVAC system’s performance.

P9 LV

ASD

STEP 1:

Input Motor’s Electrical

Specifications

STEP 2:

Input Transducer

Specifications

STEP 3:

Input

Maximum

STEP 4:

Minimum

VLP TECHNOLOGY MAKES PID TUNING A THING OF THE PAST

Toshiba’s VLP Technology algorithm has taken proportional/integral/derivative gain (PID)
and changed how users control pressure and flow. With this technology, after simply
inputting a few values into the P9, optimum control is attained. Toshiba’s Setup Wizard
effortlessly guides the user through the entire process. The setup process defines the
operating boundaries by establishing a minimum point and a maximum point. By defining
these points, VLP Technology creates an operating domain within the ASD that is directly
and proportionately related to the specific pumping system to which it is connected.
Once these points have been established, the P9 will:

• Monitor Multiple Systems for Friction Losses, Impeller Variations & Other System Variables

• Adjust Systems Accordingly to Help Ensure Only Necessary Fans or Pumps are Operating

• Balance Flow Rates for Each Operating Fan or Pump Under Different Conditions

• Maintain the Same Load for All Operating Fans or Pumps

CENTRIFUGAL PUMPS

Input

4.0

3.5

3.0

2.5

2.0

InVVC

1.5

1.0

0.5

10 20 30 40 50 60

0

SECONDS

STEP 5:

Complete

Setup

VLP Technology
Standard PID

The P9’s VLP Technology offers similar functionalities as
proportional/integral/derivative gain (PID) with additional
protective features for centrifugal pumping systems in numerous
applicable industries. From vertical multistate pumps in a water
municipality to slurry pumps in a coal mine, the P9 controls and
protects centrifugal pumps with ease.