Newtons4th ADI40 Startup Manual

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ADI40 series

START UP GUIDE

Revision 1.01

20th January 2016

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Analogue<>Digital Interface User Manual

IMPORTANT SAFETY INSTRUCTIONS

This equipment is designed to comply with BSEN 61010-1 (Safety requirements for electrical equipment for measurement, control, and laboratory use) – observe the following precautions:

• Ensure that the supply voltage agrees with the rating of the instrument printed on the back panel before connecting the mains cord to the supply.

• This appliance must be earthed. Ensure that the instrument is powered from a properly grounded supply.

• High voltages can be generated if current flow to inductive components is interrupted. Turn off the

output before connecting or disconnecti ng any component.

• Keep the ventilation holes on the underneath and sides free from obstruction.

• Do not operate or store under conditions where condensation may occur or where conducting debris may enter the case.

• There are no user serviceable parts inside the instrument – do not attempt to open the instrument, refer service to the manufacturer or his appointed agent.

Note: Newtons4th Ltd. shall not be liable for any consequential damages, losses, costs or expenses arising from the use or misuse of this product however caused.

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DECLA RA TION OF CONFORM ITY

Manufacturer: Newtons4th Ltd. Address: 1 Bede Island Road Leicester

LE2 7EA UK

We declare that the product:

Description: Analogue<>Digital Interface Product name: ADI40

Conforms to the requirements of Co unci l Directives: 2014/30/EU relating to electromagnetic compatibility:

EN 61326-1:2013

2014/35/EU relating to the safety of laboratory equipment:

EN 61010-2-30:2010

01/10/2015

Stuart Chappell (Director Newtons4th Ltd.)

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WARRANTY

This product is guaranteed to be free from defects in materials and workmansh ip for a period of 36 month s fro m the date of purchase.

In the unlikely event of any problem within this guarantee period, first contact Newtons4th Ltd. or your local representative, to give a description of the problem. Please have as much relevant information to hand as possible.

If the pr ob lem cann ot be resolved directly then you will be given an RMA number and asked to return the unit. The unit will be repaired or replaced at the sole discretion of Newtons4th Ltd.

This guarantee is limited to the cost of the ADI40 it s elf a nd does not extend to any consequential damage or losses whatsoever including, but not limited to, any loss of earnings arising from a failure of the produc t or software.

In the event of any problem with the instrument outside of the guarantee period, Newtons4th Ltd. offers a full repair and re-calibration service – contact your local representative.

It is recommended that the ADI40 be re-calibrated annually.

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ABOUT THIS MANUAL

The Analogue<>Digital Interface from Newtons4th Ltd (ADI40) is a precision interface for use with the PPA45/55 range of power analysers.

This manual is concerned specifically with the ADI40 and its use to measure and output DC voltages – a working knowledge is assumed of the PPA instrument that it is used with.

A detailed description of the PPA45/55 Power Analyser may be found in the appropriate user manual.

rights are re served. No part may be copied or reprodu ced in any form without prior written consent.

06 November 2018

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CONTENTS

ADI40 – an overview .......................................... 1-1

2 Getting started .................................................. 2-1

2.1 Unpacking .............................................................. 2-1

2.2 Initial s etup ............................................................ 2-1

3 Using the ADI40................................................. 3-1

3.1 Basic Operation ...................................................... 3-1

3.2 Example Application Overview .................................. 3-2

3.3 Initial S etup ........................................................... 3-3

3.4 Making Measurements ............................................. 3-3

3.5 Mapping Data to the Outputs .................................... 3-4

4 Communications Commands ................................ 4-1

5 Compensation.................................................... 5-1

5.1 Thermocouples ....................................................... 5-1

5.2 Standard Input Calibration ....................................... 5-2

5.3 Input C alibration P roc e dure ...................................... 5-3

6 Specification ...................................................... 6-1

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APPENDICES

Appendix A Accessories Appendix B ADI40 variant information Appendix C Contact details

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Model

+/- 10Vdc in put s

Thermocou p le inputs

ADI40

ADI40-8

ADI40-12 8 12

1 ADI40 – an overvie w

The ADI40 Analogue<>Digital Interface unit is a powerful multi-channel measurement system for use in conjunction with the PPA4500 and PPA5500 Power Analysers. It offers a seamless interface between the Power Analyser, Analogue Signals and Software.

The unit can also interface with chart recorders via 20 DC output channels, which may be mapped to any of the internally computed/logged measurements made by the PPA. These outputs can produce DC voltages within the range of +/-10V at 5mV intervals and have an output impedance of 10 ohms.

Each unit has 20 input channels with the number of each input type varying according to A DI40 variant, as shown in the table below.

The inputs are diff erential w ith a range of +/-10VDC and can be driven up to 20VDC without causing irreversible damage to the internal circuitry. Each input’s impedance to ground is 1MΩ.

The thermocouple inputs are differential with a range of +/-20mV. The correct compensation can be applied for both type J and K. An internal temperature sensor provides cold junction compensation to within +/-0.4degC.

Model variants with more than 12 thermocouple channels are available upon request, please contact customer services at Newtons4th Ltd.

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2 Getting started

The ADI40 is supplied with appropriate leads and accessories for use with the PPA45/55 Precision Power Analyser from Newtons4th Ltd. The ADI40 calibration can be performed with any PPA45/55 and can then be used with any other unit without recalibration – see the later chapter on calibration.

2.1 Unpacking Inside the carton there should be the followi ng items:

One ADI40 unit One appropriate mains lead One 2mm slotted screwdriver Eight 10 way 3.5mm straight plugs ADI40 Start up Guide

There may also be a number of optional accessories if these have been ordered with t he unit.

Having verified that the entire above list of contents is present, it would be wise to verify that your ADI40 operates correctly and has not been damaged in transit.

2.2 Initial setup Site the ADI40 under the instrument that it will be used

with. Connect the ribbon cable from the extension port on the back of the ADI40 to the extension port on the rear of the PPA.

Verify that the voltage ratings on the rear panels of the ADI40 and the instrument are appropriate for the supply,

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and then connect the ma ins cords t o th e inle ts on the rear panels and the supply outlet.

Switch on the ADI40 and the instrument. The POWER led should illuminate a n d t h e A UX le d w il l f la s h, in d ic atin g th a t the auxiliary cable is connected but communication has not yet been es ta bli shed.

Press the AUX key on the instrument, ensure that “master/slave” is disabled and then select “ADI40” from the “auxiliary device” menu. Press the HOME key twice for the change to take effect. The AUX led should stop flashing and the OUT and IN leds will begin to flash sequentially.

If the led’s do not flash, then check that the extension port cable has not been damaged and has been correctly fitted between the instrument and the ADI40.

In the event of any problem with this procedure, please contact cust omer ser vices at Newt ons4th Lt d. or your local authorised representative: contact addresses and telephone numbers are given in the appendix at the back of this manual.

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3 Using the ADI40

3.1 Basic Operation Continuous measurements are made by the ADI40 inputs

whenever it is connected to a PPA45/55 with the correct AUX menu setup. Measurement data can be accessed in the following ways:

- Using the ANALOG,channel? command to monitor the inputs in CommView2

- Assigning inputs to MULTIL,1-60 and reading back with MULTIL? or MULTIL,lines?, in CommV iew2

- Using the N4L PPALoG software to log and export measurement data.

The ADI40 inputs can be used with a wide variety of sensors and components such as Airflow rate sensors, pressure sensors and DC fans.

The ADI40 outputs are also updated whenever it is connected to a PPA45/55 with the correct AUX menu setup. Outputs can be accessed in the followings ways:

- Using the ANALOG,channel,value command to manually set the output voltage to a DC value between +/ -10.

- Using the ADIMAP co mmand to map a PPA parameter or ADI40 input back onto one of the outputs.

A detailed example of using the MULTIL and ADIMAP commands are given in section 3.2.

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When not in use, it is recommended that short linking wires be screwed between each + and – thermocouple terminal pair. This eliminates noise pickup and allows the internal temperature of the ADI40 to be monitored.

3.2 Example Application Overview This e x a mp le w il l demonstrate how the ADI40 can be used

to monitor the performance of a desktop PC. Internal chassis pressure, external atmospheric pressure, airflow through the chassis and DC fan voltage are mon itored with the +/-10V inputs. The thermocouple inputs are used to measure, main CPU temperature, air temperatures on and off the heat sink and chassis ambient temperature. An example of how this would be wired to the ADI is shown below. The PPA45/55 Phase 1 voltage and current inputs are connected to the PC mains inlet to monitor its power consumption.

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3.3 Initial Setup First, confirm that all sensor wires and thermocouples are

of sufficient length to reach the DUT comfortably. If possible, avo id runn ing thermocouples c lose to very noisy electri cal equipment.

Unplug the terminal blocks to be used and secure sensors and thermocouples to their respective terminals, using a 2mm flathead screwdriver.

The ADI40 and PPA45/55 should now be set up as described in section 2.2. Once powered up, connect the terminal blocks back into the ADI40. The thermocouples being used must all be of either t ype J or K, a mixt ure of the two is not supported. The appropriate thermocouple type can be chosen in the AUX menu.

The outputs can then also be connected to a Chart Recorder, using appropriate gauge and length of wire. Disconnecting the terminal blocks before securing wires in place is advisable to ensure good contact is made.

3.4 Making Measurements A PC running the N4L Commview2 or PPALoG software is

required to observe and/or record measurements made by the ADI40. For this example, Commview2 will be used to observe all measure ments made and output some o f them to the Chart Recorder.

First, confirm that all inputs are reading within the expected range by using the ANALOG? command.

ANALOG,1?;ANALOG,2?;.....

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If the measurements confirm that the ADI40 has been connected correctly, the inputs can next be assigned to Multilog channels with the MULTIL command.

The MULTIL command is used to assign up to 60 data values or parameters to be read back in a single multi string reply. In this example we wish to read back the following:

- The various sensors and DC fan on ADI inputs 1 – 4

- The various PC temperatures on ADI inputs 17 - 20

If we assign these inputs using MULTIL, they can then be read back as a single multi string response using MULTIL?:

MULTIL, 0 (clear anything previousl y assig ned ) MULTIL, 1, 6, 1

The comman ds sh own abo ve clea rs an y old Mult ilog setup and then assigns ADI input 1 (6,1) to MULTIL channel 1 (MULTIL,1,). The same is then done for the rest of the ADI inputs:

MULTIL,2,6,2; MULTIL,3,6,3;... MULTIL,8,6,20

Sending the MULTIL? command will now return a string containing the last set of readings made on channels 1-4 and 17-20. The changes in voltages and temperatures can now be monitored.

3.5 Mapping Data to the Outputs To send some of this data back to the ADI40 outputs, the

ADIMAP command is u sed. Any da ta value st ored in one of

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the MULTIL channels can be offset, scaled and then sent to an ADI40 output.

In this example, we want to map PPA PH1 Watts, chassis ambient temperature, airflow sensor output and DC fan voltage to the ADI40 outputs. Assuming the inputs are assigned to the same Multilog channels as given in the previous sect ion, we can map the airflow sensor (input 3) to output 8 by sending:

ADIMAP,8 ,3 ,0 ,0.8

This a ss igns Multilog channel 3 to ADI output 8, with 0 offset and scaled by 0.8. As a further example, if PH1 Watts is assigned to Multilog,9 with:

MULTIL,9 ,1 ,2

Then Watts (multiplied by 0.5) can be mapped to output 6 with the command:

ADIMAP,6 ,9 ,0 ,0.5 Providing the ADI40 is correctly setup, the outputs

selected will begin to map their assigned Multilog channel. The MULTIL? and ANALOG? commands can still be used after mapping inputs to outputs, witho ut iss ue.

N4L Software is available as a free download from our website

www.newtons4th.com (support section).

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ANALOG

Function:

Interface with ADI40

Description:

Write to individual ADI40 outputs

Format:

ANALOG,channel,value

Arguments:

Channel:

-10.00 to +10.00

Reply:

None

Example:

ANALOG,5,-3.14

Notes:

Up to 9 outputs can be written to with one

by separating each

4 Communications Commands

1-20

Value:

CommView transfer, instance with a “;”.

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ANALOG?

Function:

Interface with ADI40

Description:

Read from individual ADI40 inputs

Format:

ANALOG,channel?

Arguments:

Channel:

1-20

Reply:

ASCII characters in scientific format:

17- 20 in ˚C

Example:

ANALOG,12?

Notes:

Up to 9 inputs can be read back at once with this command by separating each

1 - 16 in Volts

instance with a “;”.

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MULTIL

Function:

Selects data for multi string reply

Description:

Selects data values across phases and functions that can be read in a single string.

Format:

MULTILOG,index,type,function

Arguments:

index:

1-60 assign to value

Reply:

none

Example:

MULTIL,0

3 data values returned for inputs 1 - 3

0 clear all 1-60 select data 1-20

type:

1-3 phase 1-3 4 sum 5 neutral 6 adi40

function:

MULTIL,1,6,1 MULTIL,2,6,2 MULTIL,3,6,3 MULTIL?

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MULTIL?

Function:

Reads multi string reply

Description:

Waits for data to be available then returns

Format:

MULTILOG?

Arguments:

Lines:

Reply:

Up to 60 data values as selected by the

Example:

MULTIL,0

Notes:

The MULTILOG,lines? command will reply

selected results.

Or:

MULTILOG,lines?

Integer

MULTILOG command in a single reply string OR

MULTILOG command in a single reply string, replying “lines” times.

MULTIL,1,6,2 MULTIL,2,6,2 MULTIL,3,6,3 MULTIL? 3 data values returned MUTLIL,5? Rep lies 5 times, each conta ining 3 data values

each time a new data point is available.

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ADIMAP

Function:

Map multilog parameters to outputs

Description:

Applies offset and scaling to a multilog value and maps value to chosen ADI Format:

ADIMAP,output,multilog,offset,scale

Arguments:

output:

Reply:

None

Example:

MULTIL,0

Notes:

Offset is subtracted from multilog value,

output

1-20 multilog: 1-64 offset: Float scale: Float

MULTIL,2,1,1 (PH1 Frequ e n cy) ADIMAP,1,2,0.2,0.5

Output 1 = 0.5 * (PH1 frequency – 0.2)

then scale is applied within the limits of +/- 10

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5 Compensation

5.1 Thermocouples The thermocouple inputs can be zeroed to remov e small

variations in measurem ents between channels. The following sequence is carried out during the produc ti o n stage, but the user may wish to perform it again. To check the thermocouple inputs for dr ift; follow steps 1 to 3 below, use the ANALOG command to check all channels are reading the same room temperature and complete steps 4 to 6 if they vary by more than +/-0.2˚C.

1. Set-up you're ADI40 as de scribed in sec tion 2.2.

2. Screw small shorting wires between the + and – terminals of each thermocouple channel, as shown below:

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3. Plug the terminal block into the corresponding socket, ensuring it is full y loc k ed in plac e.

4. In the AUX display, select ‘manual zero’ from the ADI adjustment menu.

5. With the cursor, highlight the ‘press ENTER here to execute’ text and press ENTER.

6. Verify that all thermocouple channels have been zeroed correctly.

If this process does not remove the offset or makes it worse, check thermocouples for damage or bad contact.

5.2 Standard Input Calibration Calibrating the ADI40 inputs requires a PPA45/55 and a

precision reference voltage of +8V and -8V. The ADI40 uses the reference voltage to produ ce a t able of ca l ibr a tion factors, which are stored in internal flash memory. All inputs must be calibrated together at the same time.

The calibration instructions given here will use the ADI40 reference voltage calibration fixture available from Newtons4th Ltd, to demonstrate the process.

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For further information about calibrating the ADI40 please contact cust omer ser vices at Newt ons4th Lt d. or your local authorised representative: contact addresses and telephone numbers are given in the appendix at the back of this manual.

5.3 Input Cali b ra tion Proced ure

1. Set-up your ADI40 as described in section 2.2.

2. Wire all ADI40 inputs to the calibration reference voltage, as shown in the diagram below:

3. Verify the output is +8.000V, using a precision DMM (Digital Multimeter).

4. Select +8V in the ADI adjustment menu. With the cursor, highlight the ‘press ENTER here to execute’ text and press ENTER.

5. Verify that the IN and OUT leds begin to pulse sequentially at a faster rate, for about 2 seconds. If

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the leds flash together, the calibration did not occur as one or more of the inputs were out of range.

6. Verify the output is -8.000V, using a precision DMM (Digital Multimeter).

7. Select -8V in the ADI adjustment menu. With the cursor, highlight the ‘press ENTER here to execute’ text and press ENTER.

8. Verify that the IN and OUT leds begin to pulse sequentially at a faster rate, for about 2 seconds. If the leds flash together, the calibration did not occur as one or more of the inputs were out of range.

9. Verify input calibration was successful by using CommVi ew2 and t he r eferen ce voltage.

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System

Standard Inputs

Basic Accuracy

0.1% Full Scale

Voltage Range

Bip olar + /- 10V

Maximum Input Voltage

+/- 30V

Maximu m Common M ode Voltage

- 1V ~ +14V Thermocouple Inputs

Voltage Range

Bip olar + /- 20mV

Maximum Input Voltage

Bip olar + /- 50mV

All Inputs

Input Impedance

1MΩ

Update Rate

10ms

Resolution

12 bit

Outputs

No. Of Outputs (DC)

Voltage Range

Bip olar + /- 10V

Slew Rate

0.1V/µS

Maximum Source Current

50mA

Output Impedance

10Ω

Accuracy

0.1% Full Scale

Resolution

12 bit

6 Specification

All specifications are quoted for the ADI40 only.

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General

Operating Conditions

23˚C ± 5˚C Ambient

Condensing Relative Humidity.

Temperatu re coeffici en t

±0.01% per ˚C of reading at

5-18˚C and 28-40˚C

Connectors

40 x 3.5mm screw terminal

Power Requirements

universal input

40VA max.

Size

H: 62.4mm, W: 395mm, L:

280 mm approx

Weight

2kg approx

Warranty

3 Years

Temperatu re (or air intake

temperat ur e when rack

mounted), 20-90% Non-

90-265V rms, 47-63Hz

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500-365

ADI40 calibration kit

Appendix A – Accessories

Calibration kit

The ADI40 is calibrated with a voltage reference unit and a PP45/55A P ower A naly ser. Calibration values are sto red in the non-volatile FLASH memory of the instrument.

The calibration unit includes the necessary calibration cable assembly.

A 2.1mm DC power supply within the range of 9 – 18V is required to power the unit.

Part numbers

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515-253

ADI40 19” rack mounting kit

19” rack mounting kit

The ADI40 can be integrated into 19” rack systems using a 2U custom rack mounting kit.

The kit consists of one front panel, two universal brackets and eight black M3 x 10mm pan head bolts.

Part numbers

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Appendix B – ADI40 variant information There are currently 3 ADI40 variants available: the

standard 4 thermocouples, 8 thermocouples and 12 thermocouples.

If you do not have the standard unit, there will be an additional or model overlay located under

the power switch on the rear of the unit. The inputs types are given below for each ADI40 model. ADI40 – 8

ADI40 – 12

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Appendix C – C ontact details Plea se d irec t a ll que rie s or comm ents regarding the ADI40

instrument or manual to:

Newtons4th Ltd. 1 Bede Island Road Leicester LE2 7EA United King dom

Tel: (0116) 230 1066 international +44 116 230 1066 Fax: (0116) 230 1061 international +44 116 230 1061

E-mail address: [email protected] [email protected]

Web site: www.newtons4th.com

At Newtons4th Ltd. we have a policy of continuous product improvement and are always keen to hear comments, whether favourable or unfavourable, from users of our products

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