Toshiba G7 Benutzerhandbuch

G7/H7 Applications

Workbook

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G7 Applications Workbook

Industrial Division

13131 West Little York Road

Houston Texas 77041

Phone 800.231.1412 • Fax 713.896.5242

www.toshiba.com/ind

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TABLE OF CONTENTS

Application Page

Configuring Local / Remote 4

PID Control 9

Three Wire Control 17

Motor Operated Pot (MOP) 19

Configuring Analog Inputs 21

Configuring Analog Outputs 23

Acc/Dec Time Switching Frequency 26

Frequency Priority Switching 28

Trim Pot 30

Customizing Display Units 32

Cyclic Overhauling Loads 34

Sensorless Vector Control (Speed) 35

Sensorless Vector Control (Torque) 39

Feedback Vector Control (Speed) 41

Feedback Vector Control (Torque) 43

Encoder Recommendations 46

G7 Master/Follower Via Communications 48

Master/Follower Using Analog Terminals 53

Basic Drooping 54

Remote Mount EOI 57

Preset Speeds 58

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Configuring Local / Remote operations

Introduction

Local/Remote Key – Toggles between the Local and Remote modes. The LED is on when the

system is in the Local mode.

The Local mode allows the Command and Frequency control functions to be carried out via the

EOI.

The Remote mode enables the Command and Frequency control functions to be carried out via the

Control Terminal Strip, LED Keypad, RS232/485, Communication card or Pulse Input.

The availablity of the Local mode of operation may be disabled via Program

⇒

EOI Option Setup

⇒

Local/Remote Key. Here you have the option of selecting Command Mode or Frequency Mode.

The availability of the Local mode of operation may be reinstated by changing this setting, performing

a Reset, or powering down.

EOI

Command Mode Selection Program

⇒

Fundamental Parameters

⇒

Standard Mode Set

Direct Access Number – F003

Parameter Type – Selection List

Factory Default – Use Control Terminal Strip

Changeable During Run – No

The Command Mode selection establishes the source of the command inputs. Command inputs

include Run, Stop, Forward, etc.

*For additional assistance, please contact Toshiba Adjustable Speed Drive Marketing Dept. at (800) 872-2192

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*For additional assistance, please contact Toshiba Adjustable Speed Drive Marketing Dept. at (800) 872-2192

If the LCD or LED keypad is selected, the Local / Remote key is enabled to select either the

Keypad (local) or the Control Terminal Strip (remote) as the command source.

If the Control Terminal Strip (remote) is selected, it may be programmed to select any of the following

as a source of the command signal:

•Use RR (Factory Default)

•Use LED Keypad (option)

•Use Common (TTL)

•Use RS232/485

•Use Communication Card (option)

Frequency Mode #1 Program

⇒

Fundamental Parameters

⇒

Standard Mode Set

Direct Access Number – F004

Parameter Type – Selection List

Factory Default – Use RR

Changeable During Run – No

The Frequency Mode #1 determines the source of the frequency command or the torque command

(when operating in the torque control mode) of the G7.

If the LCD or LED keypad is selected, the Local / Remote key is enabled to select either the

Keypad (local) or the Control Terminal Strip (remote) as the command source.

Selections are

•Use Vi/II

•Use RR

•Use RX

•Use RX2 (Option Card)

•Use LED Keypad (option)

•Use Binary/BCD Input

•Use LCD Keypad

•Use RS232/485

•Use Communication Card (Option)

•Use MOP Function Simulation

•Use Pulse Input Option

Frequency Mode #2 Program

⇒

Fundamental Parameters

⇒

Standard Mode Set

Direct Access Number – F207

Parameter Type – Selection List

Factory Default – VI/II

Changeable During Run – Yes

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*For additional assistance, please contact Toshiba Adjustable Speed Drive Marketing Dept. at (800) 872-2192

This parameter selects the source of the frequency command signal to be used as Frequency Mode

#2 in the event that Frequency Mode#1 is disabled or Frequency Mode #2 is set up as the primary

control parameter.

Selections are

•Use Vi/II

•Use RR

•Use RX

•Use RX2 (Option Card)

•Use LED Keypad (option)

•Use Binary/BCD Input

•Use LCD Keypad

•Use RS232/485

•Use Communication Card (Option)

•Use MOP Function Simulation

•Use Pulse Input Option

Lockout of Local/Remote

Lockout of the Local/Remote can be done by Program

⇒

EOI Setup

⇒

Lockout

⇒

Lockout

Local/Remote.

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*For additional assistance, please contact Toshiba Adjustable Speed Drive Marketing Dept. at (800) 872-2192

Operating the G7 with two installed EOIs

Required Equipment

One 120V G7 Demo with simulator terminal strip and two EOIs

Connections

Connect one EOI using the TTL port on the EOI and on the G7

Connect the second EOI using the RS485 port on the EOI and the RS232/485 port on the G7

EOI #2

EOI #1

Programming

EOI Number One (Functionality Start/Stop, Frequency Control, No Programming, No monitoring)

Direct

Access Path Parameter Name Comments

NA EOI Setup Options/Local Remote

Key Command Selection Selected

(default)

NA EOI Setup Options/Local Remote

Key Frequency Selection Selected

(default)

NA EOI Setup Options/Lockout Lockout Reset Selected

NA EOI Setup Options/Lockout Lockout Monitor Selected

NA EOI Setup Options/Lockout Lockout Parameter

Access Selected

NA EOI Setup

Options/Lockout/Password Enable Password Select Enable

Password and

set password to

999

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*For additional assistance, please contact Toshiba Adjustable Speed Drive Marketing Dept. at (800) 872-2192

EOI Number Two (Functionality: Run/Stop, No Frequency Control, Full Programming and Monitoring)

Direct

Access Path Parameter Name Comments

NA EOI Setup Options/Local Remote

Key Command Selection Selected

(default)

NA EOI Setup Options/Local Remote

Key Frequency Selection NOT Selected

Instructions

This demonstration makes obvious the ability to use multiple EOIs with one G7 drive. Each EOI may

have different functionality and privileges. This is often desirable when an EOI is mounted at the

drive to facilitate programming, troubleshooting, and monitoring while an additional EOI may be

mounted remotely for use by an operator.

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PID Control

Introduction

The built-in PID of the G7 can be used to maintain a constant process variable such as flow,

pressure, temperature, and level. In the example below, the drive is used to vary the speed of the

motor/pump to maintain a constant pressure at the output of the pump. As the valves on the output of

the pump are opened, the pressure goes low. The drive senses this via a 4-20 mA feedback signal

and speeds up to increase pressure up to the desired level. The drive will slow the motor/pump down

as the valves close. The rate at which the drive responds to changes is adjustable via three

parameters (Proportional Gain, Integral Time, and Differential Time) and will have to be field-tuned.

Later in this guideline, PID applications will be discussed in general.

Connections

*For additional assistance, please contact Toshiba Adjustable Speed Drive Marketing Dept. at (800) 872-2192

Check your transducer’s schematic for connection information. The above diagram is typical for a loop-powered transducer.

Separately powered isolated transducers feed into the ‘II’ and “CC” terminals. If your transducer is not isolated, order an isolated

input board. The inputs to the standard G7 are not isolated; do not connect the ‘CC’ terminal to ground.

Output Flow

VALVES

MOTOR

D/A

20 mA feedback

Transduce

Area in which constant

pressure is desired

P24

PUMP

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*For additional assistance, please contact Toshiba Adjustable Speed Drive Marketing Dept. at (800) 872-2192

Programming

Direct

Access Parameter Path Parameter Name Comments

F012 ProgramÎFundamental

ParametersÎFrequency Setting Upper Limit Set to 60

F011 ProgramÎFundamental

ParametersÎFrequency Setting Maximum Frequency Set to 60

F009 ProgramÎFundamental

ParametersÎStandard Mode Selection Accel #1 Set to 5

F010 ProgramÎFundamental

ParametersÎStandard Mode Selection Decel #1 Set to 5

F201 ProgramÎFrequency Setting

ParametersÎSpeed Reference

Setpoints

VI/II Set 0 hz at 20%

Set 60 hz at 100%

F360 ProgramÎFeedback

ParametersÎFeedback Settings Input Selection Set to VI/II for the PID feedback signal

The above programming assumes a system in which an increase in 4-20 mA feedback signal causes

the drive to reduce output frequency. If the system is such that increasing feedback should cause an

increase in output frequency, the ‘II’ terminal should be reversed by programming the following:

Direct

Access Parameter Path Parameter Name Comments

F201 ProgramÎFrequency Setting

ParametersÎSpeed Reference

Setpoints

VI/II Set 60 hz at 20%

Set 0 hz at 100%

Setting the Setpoint

In general, the setpoint is set by adjusting the setpoint to whatever level (frequency) is necessary to

yield the desired process variable setting. The commanded frequency and actual output frequency

will most likely not be the same; it is only the process variable’s (pressure, temperature, etc.) value

that is of concern. It is the ratio of Frequency Command to Maximum Output Frequency that the drive

uses to determine the feedback value it is trying to maintain (the setpoint).

Setpoint via keypad (Local Mode)

Press LOCAL/REMOTE button to illuminate the panel’s green LED. Hit RUN and adjust the keypad

pot to whatever value it takes to develop the desired process variable value. If you still need to setup

the setpoing via the keypad but need to Start/Stop from terminal, then set the F004 Frequency Mode

#1 to Use Common (TTL).

Setpoint via pot on RR terminal (Remote Mode)

Press LOCAL/REMOTE button to turn green LED off. Make F-CC OR R-CC. Adjust RR pot to

whatever setting it takes to generate the desired process variable value.

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