
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
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.

P9 LV
ASD
MODEL RANGE 0.75 to 125 HP 1 to 400 HP
Voltage Rating
Input Voltage Tolerance
Voltage Regulation
PWM Carrier Frequency
Control System
V/f Pattern
Overload Current Rating
Frequency Setting
Frequency Precision
Analog Input 0.2% of Maximum Output Frequency; Discrete/Communications Input 0.01% of Maximum Output Frequency
Output Frequency Range
Speed Regulation
Set Point Control
VLP
Retry
Restart
Enclosure Type
Standards/Compliances
INPUT/OUTPUT
Discrete Input Terminals
Analog Inputs
Discrete Output Contacts
Analog Outputs
Communication Port
Power Terminals
SAFETY FEATURES
Start & Stop Points
Sleep Timer
Run External Devices
No-Flow/Low NPSH Cut-Off
Sealing Water/Vacuum Priming
Determine Start/Stop Based On User-Set Values, Transducer Feedback Signal & Programmable Discrete Input Terminal;
Work with Delay Timer to Help Ensure Pump Does Not Start/Stop Too Frequently Due to Unstable/Fluctuating Input Signal
ELECTRONIC OPERATOR INTERFACE (EOI)
LCD (Liquid Crystal Display)
LED (Light Emitting Diode)
LED Indicators
Keys
Rotary Encoder
Monitoring
Display Units
Set-Point Units
Selectable from: Output Current, DC Voltage, Output Voltage, Run Time, Comp. Frequency, VLP Technology, Motor Overload,
Display Selectable Between Amps or Percentage of FLA; Voltage Display Selectable Between Volts or Percentage of FLA
Proportional Gain, Integral Gain, Feedback Settings, Upper/Lower Deviation Limits, Feedback Source Delay Filter
200 to 240 VAC 380 to 480 VAC
±10%
Main Circuit Voltage Feedback Control (Automatic Regulation, Fixed & Control O Selections)
Adjustable 1 to 16 kHz (ASD-Specific, Consult Factory)
Sinusoidal PWM with VLP Technology
Constant Torque, Voltage Decrease Curve, Automatic Torque Boost, Sensorless Vector Control,
5-Point V/f Custom Curve, PM Drive & PG Feedback Vector Control
100% Continuous; 120% for One Minute
Rotary Encoder Integrated into EOI, 0 to 10 VDC, ±10 VDC, 0 to 20 mA & Discrete Input
0 to 299 Hz
Closed Loop (Up to 0.01%; 1000:1 Speed Range);
Open Loop (Up to 0.1%; 60:1 Speed Range)
& Feeback Settings Dierential Gain Selectable Between VLP Technology/PID
Proprietary Toshiba Technology
User-Set Number of Retries for Automatic System Restart Aer Trip
Able to Smoothly Catch Freewheeling Motor (Bidirectional)
NEMA 1
UL-Listed
Eight; Each Programmable to 57 Functions; May be Increased Using Optional Hardware
Three: One 0 to 20 mA or 0 to 10 VDC Isolated Input, One 0 To 10 VDC Input & One ±10 VDC Input
Three Relays Programmable to 83 Functions; Two Form-A Contacts & One Form-C Contact
Two: One Programmable 4 to 20 mA or 0 to 10 VDC & One 4 to 20 mA Output
Half/Full Duplex RS485; MODBUS® RTU or Toshiba TSB Built-In Communications
Input (L1, L2, L3), Output (T1, T2, T3), DCL (PO, PA), DBR (PA, PB) & DC BUS (PA, PC)
Shuts O Pump Aer Running at Minimum for User-Specified Time
Turns on External Booster Pumps to Support Primary Pump when Necessary
Stops Pump Once Loss of Water Feed or Closed Output Valve is Detected
Monitors Water Flow/Water Level & Starts Pump Once Water Flows through Seal or Pump Fills with Water
Plain-English Back-Lit Display
Seven-Segment Display
Run (Red), Stop (Green), Hand/Auto (Green) & DC Bus Charge Indicator (Red)
Hand/Auto, ESC, Run, Mode & Stop/Reset
Encoder with Integrated Enter Key to View/Change Parameter Settings
Frequency Command Screen; Allows Two User-Selected Monitored Items to be Displayed;
Motor Load, ASD Load, Input Power, Output Power, RR Input, V/I Input, RX Input, RX2 Input, & AM/FM Output
Completely Configurable Along with Scaling Factor Multiplier;
Selectable Between PSI, GPM, CFM, Inches of Water Column (inH2O), or Feet of Water Column (WC)
Toshiba International Corporation
© 2020
Motors & Drives
13131 West Little York Road
Houston, Texas 77041 USA
Tel +713-466-0277
US 1-800-231-1412
Rev.11ESSENCE2019
TOSHIBA MOTORS & DRIVES
Adjustable Speed Drives • Motors • Motor Controls
www.toshiba.com/tic

Typical Connection Diagram
Figure 20. The P9 ASD Typical Connection Diagram.
Note: When connecting multiple wires to the PA, PB, PC, or PO
terminals, do not connect a solid wire and a stranded wire to
the same terminal.
Note: The AM, FM, and the +SU analog terminals are referenced to CC.
The RR, RX, P24, and the PP analog terminals are referenced to CCA.
The isolated V/I analog terminal references IICC.
26 P9 ASD Installation and Operation Manual