Emcon with an APA 100

đề tài về Emcon with an APA 100

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Meßtechnik mbH Prof.Dr.Dr.hc Hans List, Graz-Austria

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The contents of this document may not be reproduced in any form or communicated to any third partywithout the prior written consent of AVL While every effort is made to ensure its correctness, AVLassumes no responsibility for errors or omissions which may occur in this document

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1.1.1 Validity 1

1.1.2 Purpose of EMCON 1

1.1.3 System Overview 2

7HFKQLFDO'DWD 'HYLFH'HVFULSWLRQ 1.3.1 General 3

1.3.2 Monitoring 4

1.3.3 Torque Measurement 4

1.3.4 Speed Acquisition 5

1.3.5 Dyno Specific Keys on the Operating Panel 5

1.3.6 Parameters of the Dynamometer 7

78725,$/ ([DPSOHVRI(YHU\GD\2SHUDWLRQ 2.1.1 Define/Change Parameters 11

2.1.2 Turn Dynamometer on 13

2.1.3 APA-Speed Control Mode 13

2.1.4 Changing Rotation Sense 14

2.1.5 Setting the Power-On Inhibition 16

23(5$7,1* $3$6SHHG&RQWURO0RGH &RQWURO /LPLWV 0$,17(1$1&( 6\VWHP&DUHDQG0DLQWHQDQFH 4.1.1 Care and Maintenance Intervals 21

7URXEOHVKRRWLQJ 4.2.1 Disturbances during Operation 21

3OXJ$VVLJQPHQW 4.3.1 Plug X2 when using an APA 100 24

4.3.2 Plug X4 when using an APA 100 25

4.3.3 Plug X5.3 when using an APA 100 26

4.3.4 Plug X5.5 when using an APA 100 26

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4.3.8 Pins of Plug X23, Emergency Shutdown 30

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&RQWHQWVRIWKLV'RFXPHQWDWLRQThis manual contains the description of the combination

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for the operator

The operator may only carry out those maintenance operations described in this manual

All further maintenance tasks must only be carried out by trained service personal

You will find further information in the following documents:

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When you see the following symbol in this manual, they indicate the following:

This symbol in a box indicates important information!

This symbol in a box indicates additional information

This symbol in a box indicates an example

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If values can be adjusted by using the knobs on the operating panel, the following symbols indicate

which one to use

Use left knob

Use middle knob

Use right knob

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The EMCON with an asynchronous dynamometer is used as a device for measuring the effective power

of a unit under test (Otto-, Diesel-, Electric-engine or turbines) The asynchronous dynamometer is used

to acquire and control torque and speed The APA 100’s construction and dimensions are designedaccording to the unit under test

EMCON communicates with the asynchronous dynamometer via a fieldbus connection The fieldbustransmits

• actual values (speed, torque)

• demand values (speed, torque)

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• one asynchronous pendulum dynamometer with mounting

• power control unit

It can be completed by various additional devices

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If the engine monitor is used the signals of the unit under test can be connected to plug X9 and X24where EMCON outputs the Ignition On and other signals!

Malfunctions are signaled audibly and generate error messages and partially interrupt the test or stop thetest from being started

If one of the definable monitoring values is violated, an alarm text is displayed and the system is stopped.The communication with the APA 100’s power control unit via the fieldbus interface is cyclicallymonitored

When measuring with the load cell you should pay attention to the following

• stay within the defined temperature range

• don’t change the temperature faster than 5 K/h

• avoid direct radiant heat on the load cell; if necessary use a shield

• the load cell must be grounded to the base plate with a flexible cable

EMCON can also process a ±10 V signal to acquire the torque value

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The APA 100 generally uses optical sensors (Heidenheim speed impulse sensors)

The number of lines depends on the maximum speed (10 000 rpm = 1024 lines)

The speed signal can be connected to the EMCON either via a signal splitter or directly EMCONprovides two speed values; that which is directly measured and the one transmitted via the fieldbus Thesignals are continuously compared If they differ, the system is stopped

Power output stage is on

Blinking means the power outputstage is being turned on

APA-SPEED Speed control of dyno only Control mode is active

and off

The ventilation fans are on.(Default after turning the APAon)

The APA 100’s ventilation fans must stay on during operation They only may be turnedoff for a short time

The ventilation fans are automatically turned on again if the winding temperaturebecomes too high

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• Left knob Navigation within one level, selection of menus, groups, sub-menus or

parameters

• Middle knob Change the level The number of displayed lines changes accordingly

• Right knob Change values or modes

Menu 2 Gruppe 1 Parameter 3

Menu 2 Group 2 Parameter 2

Menu 2 Group 2 Parameter 3 Menu 2

Group 2 Parameter 1

Menu 2 Group 2

Menu 2 Group 3

Menu 2 Gruppe 1 Parameter 2 Menu 2 Group 1 Parameter 1

Menu 2 Group 1

Menu 2 Group 3 Sub Menu 2 Menu 2

Group 3 Sub Menu 1

Menu 2 Group 3 Sub Menu 1 Parameter 1

Menu 3 Parameter 2 Menu 3

Parameter 1

Menu 2 Menu 3Menu 1

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In the various sub-menus, the saved dyno data and the current settings are listed

In this menu the data is comprised of data records

After pressing the EDIT button you can change the value with the right knob, if necessary This changecan be rejected by pressing the EDIT button again or saved by pressing the SAVE button

The values are fictitious examples

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• Turning the Dynamometer on

• Operating in service control mode APA-Speed

You will find further descriptions in Section 3

The procedures described on the following pages assume a fully functional EMCON withproperly installed software

The operator is responsible for safety at the test bed

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Stop test run, stop engine and dyno

Press the PARAMETER button The button LED is illuminated

In parameter mode, select the relevant parameters with the left and middle knob

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Before turning on, safety at the test bed must be guaranteed!

A complete description of the power-on process can be found in the dyno description

MANUAL

Press the MANUAL button to change to the MANUAL operating state The

transition to MANUAL will take a few seconds; the peripheral devices are

initialized During this time the MANUAL button LED blinks, then the LED is

Press the MANUAL button to change to the MANUAL operating state The

transition to MANUAL will take a few seconds; the peripheral devices are

initialized During this time the MANUAL button LED blinks, then the LED is

When the APA 100’s power-on cycle is completed, the LED is illuminated

Enter the password for full parameter access and press the APA-Speed button The

button LED is illuminated

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If the rotation sense is changed, all EMCON demand and actual values are inverted

The default sense of rotation is shown in the following table

In parameter mode select the menu Dynamometer Data - ELIN - Typespecific Datawith the left and middle knob

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In Parameter mode select the menu Access Rights - Dyno Power-On Inhibition withleft and middle knob

Set the power-on inhibition The system requests the password

Enter the password, acknowledge and repeat input

When all parameters are defined/changed press the PARAMETER button to return tonormal operating mode

The power-on inhibition is reset accordingly

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This control mode is only intended for service

This control mode is a special service control mode and is used to check the signals The limit and statusmonitoring is not active

The speed of the dyno is controlled by the built-in speed controller

You can select any speed with the left knob on the operating panel

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The APA 100 is controlled by the EMCON’s controllers on top of the dyno’s controllers in the powercontrol unit

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By defining the nominal power, maximum speed and maximum torque parameters the main limits are set

If the maximum speed is exceeded, the system is automatically turned off

If the maximum power or maximum torque is exceeded the torque or power is limited which results in anincrease of speed

In APA Speed control mode the limit and status monitoring is not active

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the power-up of EMCON.

Turn APA on or check it

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power-on

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Turn main switch on.

Fieldbus cable is connectedincorrectly or the wrong cablehas been used

Check fieldbus connection

Data transmission control isdisturbed (hangs)

Turn APA off and on again

EMCON’s data interface on theSBC is disturbed

Replace EMCON or Checkinterface with special testsoftware

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As a reaction to a fixeddisturbance

in the APA documentation

Fix disturbance or contactservice

the displayed code in the APAdocumentation

Reaction to the relevantmessage text

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VXIILFLHQWO\OLQHDU Incorrect weights were usedduring the APA calibration or

the load cell signal iscorrupted

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The pin assignment is described for an ELIN asynchronous pendulum dynamometer.The system specific plug assignment can be found in the dyno documentation or in theschematics

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The EMCON with an asynchronous dynamometer is used... is used

to acquire and control torque and speed The APA 100? ??s construction and dimensions are designedaccording to the unit under test

EMCON communicates with the asynchronous dynamometer...

Data transmission control isdisturbed (hangs)

Turn APA off and on again

EMCON? ??s data interface on theSBC is disturbed

Replace EMCON or Checkinterface with special testsoftware

Tiêu đề	Emcon with an apa 100
Tác giả	Prof.Dr.Dr.hc Hans List
Trường học	AVL List GmbH
Thể loại	Báo cáo
Năm xuất bản	1999
Thành phố	Graz

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Số trang	34
Dung lượng	222,31 KB