Sfere DGN 75AC User Handbook Manual

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User handbook

Valid for instruments with version 04.xx

SOCIÉTÉ FRANÇAISE D'ÉTUDES

ET DE RÉALISATIONS ÉLECTRONIQUES

Tél. 04 78 16 04 04 - Fax 04 78 16 04 05

Tel. Intern. 33 4 78 16 04 04 - Fax Intern. 33 4 78 16 04 05

SFERE : Route de Brindas Parc d’activité d’Arbora N°2

69510 SOUCIEU EN JARREST FRANCE

''**11 $$&&

The friendly

interface

DIGITAL PANEL METERS

programmable ±10 000 points

DIGINORM

SFERE - DGN 75AC TA IN/18 v.04 - A 04/04 - Any data in this documentation may be modified without prior notice.

S

Summary

1 . PRESENTATION p2

2 . SPACE REQUIREMENTS p3

3 . WIRING p4

4 . PROGRAMMING p5

4.1 Communication with the instrument p5

4.2 Orientation through the programming p5

4.3 Main menu p5

4.4 Programming menu p6

4.4.1 - Programming of the input p6

4.4.2 - Programming of the display p7

4.4.3 - Programming of the analog output p7

4.4.4 - Programming of the digital output p8

4.4.5 - Programming of the LOGIC inputs p8

4.4.6 - Programming of the relay outputs p8

4.4.7 - Programming of mode safety p9

4.4.8 - Programming of the brightness, the bargraph p9 and the displays

4.4.9 - Programming exit with or without saving p10

4.5 Input features and programming limits p10

4.5.1 - Automatic or manual caliber p10

4.5.2 - Choice of the current caliber p10

4.5.3 - Choice of the voltage caliber p10

4.5.4 - Choice of the CT ratio p10

4.5.5 - Choice of the VT ratio p10

4.5.6 - Programming of the LOGIC inputs p11

4.6 Output features and programming limits p11

4.6.1 - Analog output p11

4.6.2 - Digital output p11

4.6.3 - Relay outputs p11

4.6.4 - Safeties p12

4.6.5 - Display features p13

4.7 Reading of the configuration p13

4.8 Access code p14

4.9 Programming of a new access code p14

4.10 Functions accessible in the main menu p14

4.10.1 - Display simulation p14

4.10.2 - Analog output simulation p15

4.10.3 - Menu CLEAr : Deleting of recorded alarms p15

5 . FUNCTIONS DIRECT FROM THE DISPLAY p15

5.1 Functions which require pressing only 1 key p15

a / Display of the minimum value p15 b / Display of the maximum value p15 c / Display switching p15 d / Deleting of maximum and minimum values p15

5.2 Functions which require pressing several keys p16

5.2.1 - Automatic setting of the cut-offs p16

5.2.2 - Visualisation of the measure unit p16

5.2.3 - Visualisation and setting of the alarm setpoints p16

5.2.4 - Modification of the display resolution p16

6 . ERROR MESSAGES p16

7 . GENERAL WARRANTY TERMS p16

8 . LEXIQUE p17

9 . ANNEXE : MODBUS p19

9.1 Table of the modbus addresses of the measures p19

9.2 Table of the adresses of the measure units and points p19

9.3 Description of born modbus functions p20

9.4 Reading in double integer format p20

9.5 CRC 16 calculation algorythm p21

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The series DGN 75AC offers a whole range of high accuracy programmable panel meters. Each instrument is equipped on its front face with a five 14mm high red digits display, whose brightness suits applications in industrial control rooms perfectly.

They allow display, control and transmission of data from alternating voltage, alternating current and of frequencies from alternating signals.

•

DGN 75AC

Measurement of an alternating voltage, an alternating current and of the frequency of an alternating signal.

• 2 programmable voltage calibers : 150V and 500V Un = 150 VAC and 500 VAC Overstepping 1.2 Un

• 2 programmable current calibers : 1A and 5A In = 1.2A and 6A Overstepping 1.2 In Automatic caliber on 0-500V, 0-5A possible

• Voltage overload permanent : 750 V during 10s : 1000 V

• Current overload permanent : 10A during 10s : 50A

• Frequency : 45 Hz to 65 Hz

• Accuracy rating :

0.2 % voltage / current (at 25°C)

• Measure cycle 55 ms

• Display : 3 magnitudes can be programmed for a display accessible simply by

pressing 1 key.

11.. PPRREESSEENNTTAATTIIOONN

AAVVAAIILLAABBLLEE OOPPTTIIOONNSS

: (specify on order)

Insulated analog output

: A Active or passive current, or voltage output. Programmable scale ratio with enlarging effect.

Relay output

: R or R4

2 or 4 relays :

Setpoint relays :

mode setpoint or mode window.

Latching function.

Time delay and hysteresis adjustable on each setpoint. Alarm messages

Insulated digital output : N

RS 485 2 wire, protocole MODBUS-JBUS.

LOGIC input 2 insulated LOGIC inputs with programmable functions

Display hold, Min. and max. zero reset

Bargraph

: (16 led display) : B

Allows a quick evaluation of the measured value variations. Programmable scale factor Possibility to programme 3 bargraphs (1 for each displayed parameter)

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Protection : Front face : IP 65 Case : IP20 Terminals : IP 20

Case

: Self-extinguishing casing of black UL 94 V0 ABS.

Connectors

plug-off connectors on rear face for screwed connections (2.5mm², flexible or rigid)

Display

: ±10 000 points (14 mm) Electroluminescent red (green optional) 4 alarm leds

-2 000 / +10 000 points (20 mm) (consult)

22.. SSPPAACCEE RREEQQUUIIRREEMMEENNTTSS

Case dimensions : (with terminals)

96 x 48 x 124 mm

Panel mounting

cut out 44 x 91 mm

external seal

Mounting panel max. thickness 30

case tightenings

Terminals

General features

• Input impedance ≥ 1 MΩ for the voltage inputs

< 0.2 VA for the current input

• Common mode rejection rate : 130 dB

Serial mode rejection rate : 70 dB 50/60 Hz

• Thermic drift < 200 ppm/°C

• Insulation : Input / Power supply : 2.5 kV eff. 50Hz-1min

Input / Output : 2.5 kV eff. 50Hz-1min

• Power supply : (specify on order)

2 Versions : High Voltage or Low Voltage High Voltage : 90...270 V

AC and 88 ...350 VDC 50/60/400 Hz

Low Voltage : 20...53 V

AC and 20...75 VDC 50/60/400 Hz

• Power draw : 5 W max. 8 VA max.

• Complies with standards EN 50081-2 on emissions and EN 50082-2;

on immunity (in industrial environment) EN 61000-4-2 level 3, EN 61000-4-3 level 3, EN 61000-4-4 level 4, EN 61000-4-6 level 3. CE marking according to Directive EMC 89-336

• Environment : Operating temperature : -5° to 55°C Storage temperature : -30° to 80 °C Relative dampness : 80% annual average.

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33.. WWIIRRIINNGG

1 2 3 4 5 6 7 8 9

A - inputs

Location of terminals

(view of case rear side)

Wiring recommendations

The input network may carry significant disturbances, and they may disturb the complete chain. In order to avoid this, the disturbance immunity can be made significantly better by respecting following rules :

- do not connect close to each other : the input network and the DGN 75AC power supply wires,

- do not connect close to each other : the input network and all the DGN 75AC output wires,

- use for all DGN 75AC outputs shielded cables connected to the ground on both extremities.

TOR 1

TOR 2

COM

LOGIC INPUTS

(options)

2 channels

TOR 1

TOR 2

COM

2 channels

C E

1 2

AC DC

OUTPUTS

(options)

POWER SSUPPLY

2 RELAYS

T : ON C : Common R : OFF

0-4/20mA active

ACTIVE CURRENT

0-4/20mA passive external source 30 V max.

VOLTAGE PASSIVE CURRENT

4 RELAYS

DIGITAL

Data link RS 485

COM

+ -

5 6 7 8

0/1 A

0/5 AAC

0/150 VAC 0/500 VAC

INPUTS

and

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44.. PPRROOGGRRAAMMMMIINNGG

4.1 CCommunication wwith tthe iinstrument

Several functions can be accessed from measure :

4.3 MMain mmenu

4.2 OOrientation tthrough tthe pprogramming

Dialogue is ensured by 4 keys located on the front face.

Move through menus : downwards, or decrease the value shown

Validation of the displayed parameter, or access to a sub-menu

Exit from a submenu to access next menu / access to the programming exit menu

Note

: In mode programming, the instrument will automatically revert to

measure with the former configuration if no key is pressed during 1min.

Move through menus : upwards, or increase the value shown

Alarms

Led 1

Led 2

Led 3

Led 4

Functions

Indication display 1

Indication display 2

Indication display 3

Display of the min. value (p15), or pass on to next displayed parameter (long pressing > 3s)

Display of the max. value (p15), or pass on to next dislayed parameter (long pressing> 3s)

min. and max. zero reset p15

Access to main menu p5

Mode configu-

ration reading

If code correct,

access to the programming

Entering of the access code.

This access to the programming menu is protected by a 4-digit code. The code on factory exit is 0000 (to modify this code,

Simulation of the ana-

log output

Authorized by

access code

Deleting of

recorded

alarms

Measure

display

rEAd

ProG

CodE

8 888

GEnE. CLEAr

Programming of the access

code

Display

simulation

Authorized by

acess code

(relay/ analog output

(analog output)

(relay output)

P.CodE

SIMUL

scroll menus

vertical move

(see p13)

see p14)

(see p15)

(see p14)

(see p6)

6..520

11 1100 33 1100 66 1100 99

and

and choice of the decimal point by

validate this choice by

and choice of the unit by

validate this choice by pressing key

Stick the

unit labels

on the leds

Further functions can be reached by pressing several keys

simultaneously :

Automatic voltage cut-off setting; (see p16)

Automatic current cut-off setting; (see p16)

Visualisation of the measure unit; (see p16)

Visualisation and setting of the alarm setpoints; (see p16)

Modification of the display resolution; (see p16)

Recording of the current display as the display which will appear on setting on tension.

Reading convention :

Move through the main menu

Revert to previous menu

Blinking display : awaiting validation or setting

Alternate information display

Entering of a parameter :

first start by increasing or decreasing the 1st digit and the sign : from -9 to +9.

The 2nd from 0 to 9.

The 3rd from 0 to 9.

The 4th from 0 to 9.

888 65588 65228 652

Between each entering, validate the cipher with key

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InPut

4.4 PProgramming mmenu

(according to options)

4.4.1 Programming of the input

dISPL.

OUt.MA OUt.U

JbuS

tor

rELAY

SECU

Pr.diS

SAvE

Access to the programming of the network type, CT and VT ratios ...

Access to the programming of the 3 displays, the voltage and current cut-off, filtering

Access to the analog output programming

(option analog output)

Access to the communication parameters

(option digital output)

Access to the programming of the LOGIC inputs

(option LOGIC inputs)

Access to the relay programming (2 or 4 relays)

(option relay outputs)

Access to the programming of the relay outputs in case of error self-diagnosis

Access to the display programming : Leds, Bargraph, Display brightness

Access to the programming exit menu with or without recording the configuration

choice of the current caliber

if auto caliber

caliber 1A caliber 5A

enter CT primary value (decimal point + unit) or full display scale for the current input

Note :

⇒ Press key to revert to menu

⇒ In mode programming, the instrument will automatically revert to

measure with the former configuration if no key is pressed during 1min.

Move through menus / choice

diSPL.

Note :

Press to revert to menu

Pri.tc

8.888

enter CT secondary value or current input full scale

SEC.tc

005.0

p10

CAL1

InPut

choice of the voltage caliber

caliber 500V

150

500

choice du calibre

manual automatic

MAnu

Auto

CAL

CALU

Sin

dEFOr.

SiGnA.

enter VT primary value (decimal point + unit) or full display scale for the voltage input

Pri.tP

8.888

enter VT secondary value or voltage input full scale

SEC.tP

500.0

Downwards move / decrease

Validation / Vertical move

Menu exit /access

Upwards move / increase

caliber 150V

diSPL.

sinusoidal signal

deformed signal (eg. : phase angle)

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4.4.2 Programming of the display

diSPL.

diSP.2

diSP.3

Cut.I

choice of display parameter n°1

choice of display parameter n°2

choice of display parameter n°3

enter current cut-off from 1.0% to 15.0% in manual caliber

from 0.2% to 15.0% of caliber 5A in auto caliber

according to options

003.0

FiLt.

OFF

Out.MA

Out.U

JbuS

tor

rELAY

SECU

Note :

Press to go on to next menu

Move through menus / choice

diSP.1

dISPL.

current cut off

Cut.U

enter voltage cut-off from 1.0% to 20.0% in manual caliber

from 0.3% to 20.0% of caliber 500V in auto caliber

003.0

voltage cut off

choice of the filtering

no filtering

Choice of the display parameters

U, I, FrE. U

: voltage

I : current FrE. : network frequency

Downwards move / decrease

Validation / Vertical move

Menu exit / access

Upwards move / increase

4.4.3 Pro

gramming of the analog output

-88.88

PAr.dS

Out.MA

Out.U

analog output down scale

choice of the parameter associated with the analog output

analog output full scale

entering of the parameter value corresponding to the output down scale (decimal point + unit)

entering of the parameter value corresponding to the output full scale (decimal point + unit)

00.00 < x < 22.00 (mA)

00.00 < x < 11.00 (V)

See also the display features p13

p9p9

4.5.3 Choice of the voltage caliber

or only in manual

oltage input features

4.5.2 Choice of the current caliber

or only in manual

Current input features

4.5.1 Manual or automatic caliber

automatic caliber

manual caliber

Caliber

Display

resolution

Input level resolution

Accuracy

0 to 1 A

In=1.2A

0 to 5 A

In=6A

± 1 digit

10 bits

0.2% of

measure range

0.2% of

measure range

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SAvE

CAL

Auto

CALI

CALU

150

500

MAnu

SAvE

YES

exit with configuration saving

exit without configuration saving

revert to measure display

4.5 IInput ffeatures aand pprogramming llimits

Note : Exit of programming mode saving configuration (

SAVE, YYES

) will automati-

cally reset to zero the tare, the min. and max. as well as the alarm recordings.

4.4.9 Pr

ogramming exit with or without saving

Caliber

Display

resolution

Input level resolution

Accuracy

0 to 150 V

0 to 500 V

± 1 digit

10 bits

0.2% of

measure range

0.2% of

measure range

4.5.4 Choice of the CT ratio or the current scale factor

Example : say an installation with a 5000 kA / 5 A CT, or a display of 5000 for 5A

and

Pri.tc 5000.

SEc.tc 005.0

10 3

4.5.5 Choice of the VT ratio or the voltage scale factor

Example : say an installation with a 400 kV / 110 V VT

and display 1 cipher after the decimal point

=> 400.0 for 110V

Note concerning the entering of the Pri.tc and Pri.tP

: The instrument will always try to display with a maximum resolution. eg. : for Pri.tP = 400.0, the display will be

for Pri.tP = 0400, the instrument will save the value Pri.tP = 400.0

and in measure the display will be the same

likewise for Pri.tc = 0010, the instrument will save Pri.tc = 10.00 and

in measure the display will be

The decimal point location is fixed once and for all on the configuration saving (taking into account the possible display with the maximum resolution). It can in no case be modified in measure, that is to say after a display of there will be after an input signal increase (display overload) and not with moving of the decimal point to the right.

NOTE : by pressing and the display resolution can be modified if you do not want the maximum resolution (see p16).

Pri.tP 400.0

400.0

10.00

99.99

100.0

O.L

SEc.tP 110.0

10 3

S

4.5.6 Pr

ogramming of the LOGIC inputs

(optional)

Board of 2 LOGIC inputs : input signal 24 Vdc

Possible functions :

Display hold in case of activation of the LOGIC function. The display and the analog output remain fix in case of variation of the measure. The relays carry on reacting to the measure.

Min. and max. zero reset The activation of function LOGIC will reset the min. and max. to zero

HoLd

CLr.M

4.6 OOutput ffeatures aand pprogramming llimits

4.6.1 Analog output or

Current output 0/4-20mA active or passive (Vmax.=30VDC) or voltage output 0-10V

• Accuracy 0.1 % in relation to the chosen parameter (at +25°C)

• Residual ripple ≤ 0.2%

• Admissible load 0Ω≤ Lr ≤ 500Ω (current)

Lr ≥ 2 kΩ (voltage)

• Programmable scale ratio with enlarging effect

• Response time : 40 ms

Choice of the parameter dedicated to the output (see chapter 4.4.3)

Analog output down scale

Analog output full scale

Value of the parameter dedicated to the output corresponding to the output down scale

Value of the parameter dedicated to the output corresponding to the output full scale

In mode measure, the analog output can not overstepp 10% of the greatest of the 2 values : d.out and F.out

Out.MA

Out.U

F.out

PAr.dS

PAr.FS

d.out

PArAM

4.6.2Digital output :

- Data link RS485 (2 wire)

- Protocoles

MODBUS-JBUS format of data : integer and double integer

- Single transmission format : 1 start bit

8 bits without parity 1 stop bit

Slave number included between 1 and 255

Transmission speed included between 1200 and 19200 bauds

Delay before any response

Table of modbus addresses, used functions, see annexe p19

4.6.3 R

elay outputs :

2 relay outputs or 4 relay ouputs

• Hysteresis independently programmable in the chosen parameter unit

• Time delay independently programmable from 0 to 25 s in 0.1s increases.

• NO-NC contact 8 A - 250 V on resistive load

Activation or de-activation of relay x

The state of relay x depends on the performed programming

Relay x remains still

SLAvE

bAud

dELAY

rEL.1

rEL.2

Acti.X

OFF

rEL.1

rEL.2

rEL.3

rEL.4

S

Mode alarm

Choice of the operating mode :

••

Mode setpoint

••

Mode window

••

Mode setpoint

••

Mode window

Choice of the state of the relay associated led

The led indicates the alarm state.

led lit when relay active (coil supplied)

Led still when relay active (coil supplied)

Setting of the hysteresis in the unit of the chosen parameter The hysteresis is active on switching from led lit to led

still; i.e. on switching out of alarm, as the led represents the alarm state.

OFF

setpoint

set-

point

set-

point

set-

point

setpoint

Legend : ON coil supplied OFF coil not supplied

OFF

ModE.x

SP.X

- Hystx

HYSt.x

LEdx

OFF

led lit

SPX.1

-Hyst.x

SPX.2

+Hyst.x

SPX.2

SPX.1

SPX.2

SPX.1

led lit

led still

tiME.x

MEM.x

CLEAr

MESSx

••

Alarm time delay

The relay time delay is adjustable from 000.0 to 025.0s. in 0.1s increases. It is active both on switching and switching back.

••

Time delay position

Time delay on switching on alarm Time delay on switching on alarm and off alarm

••

Latching function

Allows recording of the alarm after a setpoint has been passed. When the measure reverts below the alarm setpoint, the relay remains ON and the led blinks to warn the user that a setpoint has been passed (to reset the recording of alarms to zero see menu p 15).

Note

: An exit from mode programming with configuration saving will

reset the alarm recordings to zero.

••

Display of alarm messages

A programmed alarm message can be made to appear alternating with the measure. The message will appear only during the alarm, while the associated led is lit.

••

Setting of the setpoints : There are 2 ways to adjust setpoints.

- either in mode programming entering the correct access code

- or by simultaneous pressing on and if the access to a quick entering has been authorized on the code programming

(see p16)

diAG

4.6.4 Safeties :

••

Self-diagnosis

The self-diagnosis serves to warn the user in case of error.

The self-diagnosis error information can be reported

· On the display

: An error message appears alternating with the measure ; an error code is registered, and can be read in menu About (see p14)

Coding

: 1 : Current caliber overstepping 2 : Voltage caliber overstepping 4 : Frequency calculation error 8 : Programming error 16 : Input calibration error 32 : Output calibration error

If the instrument detects for instance a current and a voltage caliber overstepping the error code value will be 3 (1+2).

t.Act.X

SIMPL doubL

4.7 RReading oof tthe cconfiguration

Reading of the input parameters Reading of the measure display parameters Reading of the analog output parameters

(option analog output)

Reading of the communication parameters

(option digital output)

Reading of the LOGIC input parameters

(option TOR)

Reading of the alarm parameters

(option 2 or 4 relays)

Reading of the safety parameters in case of self-diagnosis error

Reading of the display programming parameters (leds, bargraph leds..)

Reading of the instrument own parameters

In each reading submenu, press and to move, and to visualise parameters.

If no key is pressed during 20s, the instrument will automatically revert to measure display.

OFF

· On the relays :

No influence of a self-diagnosis error on the relay

Relay de-activated (coil not supplied) in case of self-diagnosis error

Relay active (coil supplied) in case of self-diagnosis error

Note : The led is either still or lit according to its programming in the menu

rELAY.

· On the analog output

If a return value has been entered Value included between : 0 and 22 mA (current output)

or 0 and 11 V (voltage output)

br.diG

1 1 1 1

4444

diSP.1 diSP.2 diSP.3

Cut.I

Cut.U

FiLt.

4.6.5 Display features :

Choice of the parameter dedicated to the display n°1

Choice of the parameter dedicated to the display n°2

Choice of the parameter dedicated to the display n°3

Cut-off on the current programmable from 1.0% to 15.0% in manual caliber, from 0.2% to 15.0% of caliber 5A in auto caliber

Cut-off on the voltage programmable from 1.0% to 20.0% in manual caliber, from 0.3% to 20.0% of caliber 500V in auto caliber

Choice of the digital filtering : OFF , 1 , 2 ; increase the value in case of unsteady measures.

••

Response time

Typical response time : 110ms.

Note : For the analog output response time, add 40 ms to the above value.

For the relays : add the time delay programmed on the alarms.

••

Setting of the digits brightness

Lowest brightness Strongest brightness

nuLL

YES

nuLL

YES

nuLL

••

Deleting of unsignificant zeros

Suppresses the unsignificant zeros on the left hand side.

Eg.

: Display value 0015

Display 0015 Display 15

Eg.

: Display value 00.15

Display 00.15 Display 0.15

YES

1 1 1 1

4444

br.bAr

L.dIG

••

Setting of the brightness of the bargraph and leds

Lowest brightness Strongest brightness

The brightness level is visualised directly on leds 5 to 8 and on the bargraph.

Caution : during the setting, the 4 leds and the bargraph no longer represent the measure, including in mode reading.

••

Inhibition of the last digit

(low weight)

In the programming mode, the menu L.dIG allows deleting the display of the last digit, enforcing it to 0 if OFF is validated.

••

Bargraph display factor

(option bargraph only)

Value of the display parameter X corresponding to 0% of the

bargraph

Value of the display parameter X corresponding to 100% of the bargraph

In case of overstepping, the bargraph starts to blink.

d.bArX

F.bArX

rEAd

InPut

diSPL

Out.MA Out.U

JbuS

rELAY

tor

Pr.diS

About

Validation /

Vertical move

SECU

S

4.8 AAccess ccode

An access code adjustable from 0000 to 9999 serves to prevent unauthorized programming of the meter and of its setpoints, and to lock the access to some functions.

0000 Factory code

x x x x

0 to 5 Access to the current and voltage automatic cut off 6 to 9 No access

0 to 5 Access to the display and output simulations 6 to 9 No access

0 to 5 Access to a quick entering of alarm setpoints 6 to 9 No access

S

About

d75AC

A0123

ProG

01.00

0Pt10.

Ar4--.

Err.

0000

CH.SUM

FC4E

Validation /

Vertical move

type of instrument

Sub-menu

instrument number

programme version

code of the installed options

error code in case of error self-diagnosis

flash memory check sum

X1 : - : No analog output

A : Analog output

X2 X3 : - - : No relay output

r- : Output 2 relays r4 : Output 4 relays

X4 : - : No RS output

n : RS output

X5 - : No LOGIC input

t : 2 LOGIC inputs

(.) : decimal point still :

no bagraph

“.” : decimal point lit :

option bargraph

00000

XXXXX

11 22 33 44 55

00000

XXXXX

11 22 33 44 55

4.9 PProgramming oof aa nnew aaccess ccode

P.CodE

Enter pre-

vious code

if code not valid

(old)

display during 2s. and revert to measure display

registering of the new code

Revert to measure

display

if code correct

(old)

Enter new

code

Reminder : If no key is pressed during 1 min, the instrument will automatically revert to measure display.

Note : During simulation, the instrument no longer measures, the analog and the relay outputs react according to entered display value. If alarm messages have been programmed, they can appear during simulation.

SIMUL

diSP.1 diSP.2 diSP.3

Display value

Press Menu to revert to measure display.

4.10 FFunctions aaccessible iin tthe mmain mmenu

4.10.1 Display simulation

(accessible according to the programmed access code, and if

option relays or analog output)

Entering of a new

display value

choice of the

parameter to be

simulated

S

GEnE.

Output value

Enter the value

to be injected

Press Menu to revert to measure display

Note : The instrument carries on measuring during simulation. Only the analog output no longer reacts to the measure.

CLEAr

4.10.3 Menu : Deleting of recorded alarms

If the function recording of alarms has been programmed : The relay state is recorded after a setpoint has been passed.

If the setpoint is passed back the other way, the relay state does not change and the corresponding led starts to blink. To come back to the normal state (led not blinking and relay in the correct state) use menu CLEAr).

CLEAr

recorded alarms are not deleted

delete recorded alarms and revert to measure display

Reminder

: If no key is pressed during 20 s., the instrument

will automatically revert to measure display.

Note

: An exit from mode programming with configuration saving will

reset the alarm recordings to zero.

(accessible according to programmed access code and if option analog output)

4.10.2 Simulation of the analog output

5.1 FFunctions wwhich rrequire ppressing oonly 11 kkey :

a / min. value display b/ max. value display

InF.

02.00

Measure

display

Alternate information display

Minimum value

55.. FFUUNNCCTTIIOONNSS DDIIRREECCTT FFRROOMM DDIISSPPLLAAYY

SUP.

08.00

Measure

display

Alternate information display

Maximum value

c / Display switching (3 possible parameters)

A long pressing (>3 s) on or allows passing on to next or previous parameter (a led indicates which parameter is selected).

d / Deleting of maximum and minimum values

1 min. and 1 max. available for each displayed parameter

The instrument reverts to measure display.

Reminder

: If no key is pressed during 20 s., the instrument will revert

to measure display.

Note

: An exit from mode programming with configuration saving

will reset the min. and max. values to zero.

CLr.M

Measure

display

deleting of recorded min. and max., and revert to measure display

S

5.2 FFunctions wwhich rrequire ppressing sseveral kkeys

5.2.1 Automatic setting of the cut offs

automatic voltage cut off setting

automatic current cut off setting

(accessible according to programmed access code)

The automatic voltage or current cut off setting is an operation that will enforce the voltage or current to 0 for U (I) low values. Once the menu is chosen, the instrument will measure the values on its inputs and enforce display to 0 for values lower than the programmed cut-off in percentage of the full scale. To eliminate these cut-offs, just go into programming and programme a new cut-off value (current from 1.0% to 15% in manual caliber, from 0.2% to 15% of caliber 5A in auto caliber, voltage from 1.0% to 20% in manual caliber, from 0.3% to 20% of caliber 500V in auto caliber).

Cut.I

Cut.U

voltage cut off setting current cut off setting

5.2.2 V

isualisa

tion of the measur

e unit

Press and to obtain during 3s the display of the unit alternating with the measure.

5.2.3 Visualisation and setting of the alarm setpoints

Setting of the setpoints : There are 2 ways to adjust setpoints :

- either in mode programming entering the correct safety access code (see p14)

- or by simultaneous pressing on and

Option 22 oor 44 rrelays

When the setpoint is adjusted press to revert to the setpoints reading menu.

Once all setpoints are adjusted, just press and the meter will revert to mode measure, taking the new values into account. If no key is pressed after 60 s. the meter will revert to measure display without modification of the setpoints value.

The meter then shows the message SP.x or SPx.x alternating with the value of the corresponding setpoint and its unit.

The various setpoint values can be accessed by and .

These setpoints can then be modified (if access code < 6000 (see p14)) by pressing .

66.. EERRRROORR MMEESSSSAAGGEESS

Err.1

Value set out of range

Displayable value overstepping

Self-diagnosis error (see p12 )

O.L

Er.xxx

77.. GGEENNEERRAALL WWAARRRRAANNTTYY TTEERRMMSS

WARRANTY applying and duration

This appliance is under warranty for a duration of 1 year against any design or manufacturing defects, under normal operating conditions.

Intervention terms * : The processing out of warranty will be submitted to acceptance of a repair estimate. The products will be returned at the customer’s charge to the company and they will be restored after processing. Without a written agreement on the repair estimate within 30 days, products will not be held.

* Details and complete warranty terms available on request.

and

5.2.4 Modification of

the display resolution

Press allows changing the display resolution of the selected parameter if you do not want the maximum resolution.

eg. : display with max. resolution : 147.0 you can have 0147

5.000 you can have by pressing

successively 05.00 or 005.0 or 0005

IInnppuuttss

Access to the input programming sub-menu

Manual or automatic caliber

manual caliber

automatic caliber

Current caliber

caliber 1A

caliber 5A

Voltage caliber

caliber 150V

caliber 500V

Type of signal

Sinusoidal signal

Deformed signal

CT primary value

CT secondary value

S

88.. LLEEXXIIQQUUEE

Access code

Programming of a new access code

Access to the display simulation

Access to the analog output simulation

Deleting of recorded alarms

rEAd ProG

CLEAr

CodE

SiMUL

P.CodE

GEnE

GGeenneerraall aacccceessss

Access to the reading of the parameters

Access to the programming of the input and output parameters

InPut

CALI

CAL

Auto

MAnu

CALU

Sin

SiGnA.

dEFOr.

Pri.tc

SEc.tc

500

150

LLOOGGIICC iinnppuuttss

Access to the LOGIC inputs programming sub-menu

programming of LOGIC input 1

programming of LOGIC input 2

function display hold

function deleting of min. and max.

DDiissppllaayy

Access to the display programming sub-menu

choice of the 1st parameter to be displayed

choice of the 2nd parameter to be displayed

choice of the 3rd parameter to be displayed

parameter voltage (see chapter 4.4.2)

current cut-off

voltage cut-off

digital filtering

no filtering

filtering 1

filtering 2

CLr.M

HoLd

tor

tor 1

tor2

1 2

OFF

Cut.I

Cut.U

FiLt.

diSP.3

diSPL.

diSP.1 diSP.2

VT primary value

VT secondary value

SEc.tP

Pri.tP

Pr.diS br.diG

br.bAr

1 1 1 1

4444

1 1 1 1

4444

L.dIG

OFF

nuLL

YES

Display parameters

Programming sub-menu of the display features

Adjusting of the digits brightness (4 levels)

Lowest brightness Strongest brightness

Setting of the brightness of the bargraph and the leds

Lowest brightness Strongest brightness

Last digit (low weight)

Last digit in service Last digit enforced to 0

Deleting of unsignificant zeros

Yes No

display of parameter 1 corresponding to 0% of bargraph

display of parameter 2 corresponding to 0% of bargraph

display of parameter 3 corresponding to 0% of bargraph

display of parameter 1 corresponding to 100% of bargraph

display of parameter 2 corresponding to 100% of bargraph

display of parameter 3 corresponding to 100% of bargraph

d.bAr1

d.bAr2

d.bAr3

F.bAr1

F.bAr2

F.bAr3

19200

dELAY

Analog output

Access to the voltage output programming sub-menu

Acces to the current output programming sub-menu

Choice of the parameter dedicated to the analog output

Analog output down scale

Analog output full scale

Value of the parameter dedicated to the output corresponding to output down scale

Value of the parameter dedicated to the output corresponding to output full scale

Digital output

Access to the RS output programming sub-menu

Slave number

Transmission speed

Minimum speed

Maximum speed

Time delay before any answer

Time delay 75ms Time delay 20ms

bAud

SLAvE

1200

Out.MA

d.out

PArAM

F.out

PAr.dS

PAr.FS

JbuS

Relay outputs : x : 1 to 4

Access to the relay outputs programming sub-menu

Access to the programming of relay x

Activation of relay output x

Activation De-activation

OFF

Acti.x

rEL.x

rELAY

Out.U

OFF

S

ModE.x

__1

1__

Mode alarm

Mode setpoints

Mode window

Value of the setpoint in mode setpoint

Value of the 1st setpoint in mode window

Value of the 2nd setpoint in mode window

Value of the hysteresis in display points

Time delay on relay X

SPx.1

SPx.2

HYSt.x

tiME.x

SPx

_1--1_

1__1

Programming of the led associated with the relay

Led lit when relay active (coil supplied)

Led still when relay active (coil supplied)

Recording of alarm X

Recording No recording

Alarm message

Message No message

LEdx

OFF

MEM.x

MESSx

YES

rEL.X

YES

rEPLi

out.MA

out.U

OFF

H I

SECU

Safeties

Access to the safeties programming submenu

State of relay X in case of sensor rupture

No sensor rupture associated with the relay

Relay de-activated in case of sensor rupture (coil not supplied)

Relay active in case of sensor rupture (coil supplied)

Return value on the output (or not) in case of error self-diagnosis

Return value required No return value

Return value

Time delay position

Time delay on switching on alarm

Time delay on switching on alarm and off alarm

t.Act.X

SIMPL doubL

Reading of the instrument internal features

Access to the internal features reading submenu

Instrument type : DGN 75AC,

Identification numbers

Programme version

Programme version number

Option code

Option code value

Self diagnosis error

Type of error

Check sum display

Check sum value

Error messages

Value set out of range

Displayable value overstepping

Self-diagnosis error

S

About

d75AC

A0006

PrOG

01.00 OPtIO.

Ar---.

Err.

SAvE

YES

InF.

SuP.

CLr.M

0000

CH.SuM

FC4E

Configuration saving

Saving No saving

Further functions

Minimum value display

Maximum value display

Deleting of the min. and max.

Err.1

Er.xxx

Address

1 2 3

Measures voltage U current I network frequency

Format integer integer integer

nb of words

1 1 1

99.. AANNNNEEXXEE :: MMOODDBBUUSS

9.1 Table of the measur

e Modbus addr

esses

The value read in the 1st table gives the measure module. To know the unit and decimal point of this measure, read them in the 2nd table, the table of units and decimal points.

The unit and the decimal point do not vary

. They depend on the programmed CT and VT ratios. Hence, the 2nd table does not need to be read permanently.

Address

Format integer

integer

9.2 Table of the measure units and decimal points

unit : 0 to 4 0 : x1 1 : kilo 2 : mega 3 : giga 4 : tera

decimal point : 1 to 4 1 : x.xxx 2 : xx.xx 3 : xxx.x 4 : xxxx. example

: line current : value 5000 decimal point : 1 unit : 1

Î value of the current : 5.000 kA

Decimal points and units of the measures dec. point (top weight) / unit (low weight) voltage U dec. point (top weight) / unit (low weight) current I dec. point (top weight) / unit (low weight) network frequency

S

2 bytes

CRC 16

Slave

number

1 byte

2 bytes

Function

3 or 4

CRC 16

1st word

MSB

address

LSB

9.3 Description of born Modbus functions :

Reading of N words : Function n°3

Request pattern

Nbr of

MSB

words

LSB

2 bytes

Slave

number

1 byte

2 bytes

Function

3 or 4

CRC 16

Number of bytes

read

Response pattern :

1st word

MSB

value

LSB

2 bytes

2nd word

MSB

value

LSB

2 bytes

Slave

number

1 byte

2 bytes

Function

CRC 16

1st word

address

Nbr of

words to

be enfor.

Writing of n words : Function N°16 :

Request pattern

Value of the words

to be enforced

2 bytes

Nbr of

words to

be enfor.

2 bytes

Nbr of

bytes to

be enfor.

1 byte

n bytes

Slave

number

1 byte

Function161st word

address

Response pattern :

••

State of the relays

bit 15

bit 7

bit 6

bit 0

1 : Led lit 1 : Led blinking : mode

recording and measure not in alarm

1 : Relay ON Alarm

recorded

Address

52 54 56 58 60 62 64 65 66 67

alue of the analog output in µA (mA output) in mV (10V output) maximum display 1 maximum display 2 maximum display 3 minimum display 1 minimum display 2 minimum display 3 state of relay 1 state of relay 2 state of relay 3 state of relay 4

Format

double integer

double integer double integer double integer double integer double integer double integer

integer integer integer integer

nb of words

2 2 2 2 2 2 1 1 1 1

Further addresses

254 03 CRC 160 52

9.4 Reading in double integer format : Example : Reading of the maximum on display 1 (voltage maximum)

Request

0 2

Address

Reading of

n words

Slave

number

Number of words

254 3 4 19

••

Response with a positive measure :

136 0

CRC 160

measure

byte 1

byte 2

byte 3

byte 4

2 bytes

00000000

byte 3

00000000

byte 4

00010011

byte 1

10001000

byte 2

Sign : 0 positive

1 negative

0 19 136

Value of the measure :

Measure = byte 3 x 2563+ byte 4 x 2562+ byte 1 x 256 + byte 2

= 0 x 256

+ 0 x 256

+ 19 x 256 + 136

= 5000 Reading of address 17 => decimal point = 3 unit = 0 => maximum = 500.0V

S

9.5 CR

C16 calculation algorythm :

FFFF → CRC

CRC ⊕ BYTE→ CRC

END

yes

n = 0

n = n + 1

yes

shifting by 1 bit to the

right of CRC

carry

CRC ⊕ poly → CRC

n > 7

next byte

yes

Note 1 : ⊕ = exclusive or. Note 2 : POLY = A001 (hex). Note 3 :

The CRC 16 calculation applies to all bytes in the pattern (except CRC16). Note 4 :

Caution ! In the CRC 16, the 1st sent byte is the LSB.

Example

: Pattern 1-3-0-75-0-2 CRC16 = 180-29 (values are decimal).

end of pattern

Sfere DGN 75AC User Handbook Manual

Specifications and Main Features

Frequently Asked Questions

User Manual