Nokeval 2022Setp Manuel utilisateur

Setpoint unit

2022Setp

USER MANUAL

5.8.2008 V1.3

Nokeval

INTRODUCTION

2022Setp is a special edition of Nokeval 2022

multi-input indicator. It is available in wall-mounted

“2800” enclosure or in a 1/8 DIN panel enclosure.

Normally it is equipped with an analog output

card, and possibly with serial communications

card, an alarm relay card, or another analog

output card. There is always one mA/V process

input with transmitter supply 24 V 250 mA.

Configuration can be fully performed either with

the front panel buttons or using serial

communications and Mekuwin PC software. The

latter option however requires a serial

communications card.

SPECIFICATIONS

Input card

Galvanic isolation Yes

Update rate 6 / sec typ

mA input

Input resistance 50 ohms

Physical range 0..24 mA

Calibr accuracy ± 8 µA

Linearity ± 3 µA

Tempco ± 100 ppm/°C

Transmitter supply 24 V ±20% 260 mA

V input

Input resistance 1.1 Mohms

Physical range 0..12 V

Calibr accuracy ± 5 mV

Linearity ± 2 mV

Tempco ± 100 ppm/°C

Analog output card

Galvanic isolation Yes (shared with serial

communication and

another output card)

mA output

Max range 0..20.8 mA typ

Calibr accuracy ± 8 uA

Linearity ± 4 uA

Max load 12 V (600 ohm)

V output

Max range 0..10.5 V typ

Calibr accuracy ± 5 mV

Max load 3 kohm

Serial communications card

Ports RS-232 or RS-485

Galvanic isolation Yes (shared with analog

outputs)

Protocol Nokeval SCL

Baud rates 300..19200 bit/s

Response 200 ms max

Alarm relays

Configuration One or two two-relay cards

(2000REL2) or one

three-relay card

(2000REL3)

Ratings 250 VAC 2 A

non-inductive load

General

Power supply 85-260 VAC or

12-32 VDC

Ordering

The full ordering code for a panel indicator with

one analog output and 85-260V supply is:

2022SETP-OUT-230VAC

To add a serial card, include -RS- in the chain. To

have relay cards, include -REL2- or -REL3-. Only

two option cards can be included!

And for a wall-mounted indicator precede with

2800-: 2800-2022SETP-…

INSTALLATION

Connectors

2022Setp

Com

+24V

+mA

OUT

Com

SERIAL

RS-485RS-232

TxD

Com

RxD

REL2

REL3

987

Power

supply

+L -N

Slot A = 2022Setp input card

Slot B = Analog output (or other option card)

Slot C = The second option card

An active milliamp signal is connected to A5+ and

A3-. A two-wire transmitter may be connected to

A6+ and A5-. Voltage signal is brought to

terminals A1+ and A3-. Note that slot A

connectors 3 and 4 must always be linked

together!

If a pre-fuse is used in 230V power supply

connection, it should be at least T500mA. The

indicator has an internal pre-fuse. The polarity of

the power supply has no matter.

Jumpers

on off

Term

RS232 RS485

(Factory setting)

RS485

Last unit on bus

2000-RS

on off Term

Configuration

Using front panel

The indicator can be fully configured using the

front panel keys. The configuration settings are

explained in chapter Settings, and using the front

panel is described in chapter User interface.

The indicator keeps measuring and updating the

alarms, but the serial output is not available.

Using configuration software

MekuWin program (free from Nokeval web site) is

used to configure the device using RS-232 or RS-

485 communication. If connection fails, check the

communications settings using front panel keys to

match those in MekuWin. The settings are

described in chapter Settings / Serial

communications, and the MekuWin program has a

manual of its own.

The Slot parameter in Mekuwin is used to select

which “slot” or card is configured. 0=Master

(setpoint), 1=slot A (input), 2=slot B (output),

3=slot C.

The indicator keeps measuring during the

configuration, and the MekuWin monitor function

can be used to see the current readings.

OPERATION

Data flow

135000

Internal

bus Display

Serial

Alarms

Ch 8

Ch 1

Input Scaling

Blink

Ana output

Setpoint

The mA or V input is first measured. This

information is converted to a scaled reading (in

any engineering units) using two freely selectable

sample points, e.g. 4.112 mA corresponds to 0

bar and 16.501 mA corresponds to 6 bar. This is

set up in slot A configuration menu. The reading is

put available on internal channel 1, to be available

for the outputs and the display.

There is one user-adjustable setpoint, that can be

changed using the front panel buttons ^and v.

This setpoint is available on channel 8.

The alarms and analog output(s) can be taken

from channel 1 (input) or channel 8 (setpoint).

USER INTERFACE

Front panel

Normal state

In normal state, this device displays the current

measurement reading continuously functioning as

an indicator.

The display can be set to three different modes.

They are:

•Normal. The display consists of a

channel number and a reading. The

channel can be selected with ^v keys.

Channels: 1=input, 8=setpoint.

•Setpoint. The display is always showing

the adjustable setpoint (channel 8), and it

can be adjusted using buttons ^and v.

•MeaSet. The display shows normally the

input (channel 1), but can be requested to

show the setpoint by pressing ^or vfor

the time specified in the settings. The

setpoint can then be adjusted. The

display is returned to input display when

no buttons is pressed for a while.

The indicator LEDs A1-A4 show the status of the

alarms. The Conf LED is lit when in configuration

state. Additionally, M1 blinks when the setpoint is

being adjusted.

Configuration state

Press *and ^simultaneously two seconds to

enter configuration state. First, select the slot to

be configurated. The options are Master, Slot A,

Slot B, and Slot C. Proceed with >. If configuration

password is set, you will now need to enter it

(Cod.0 displayed). In case the password is not

known, switch the power off, hold *and >keys

pressed and switch the power on again.

Conf

Submenu1

Submenu2

Submenu3

...

Submenu1

Item1

...

Editing

^ v >

> *

...

Save

Undo

Slot

Master

Slot A

Slot B

Slot C

*+^

The main level of the configuration menu is

shown. You can select among menu items using

^v keys. To edit the setting, push >to start

editing, and *to get back to the menu. How to

edit, see chapter Editing.

Most data types are edited simply with ^v keys,

finally exiting with *key.

Floating point values, such as scaling and

lopass filter, are edited with ^v> keys: select digit

to edit (blinks) with >and change it with ^v.

When the decimal point is blinking, it can be

moved with ^v. The first digit can be replaced

with a minus sign.

To set a password, push ^to select Set (means

password will be used), then push >to enter the

new password. Cod.0 is shown. The password is

a sequence of six keypresses using all the four

keys. Enter the same password twice; if they

match, Set is shown again and you can exit with

*. If they didn’t match, Off is shown. Redo from

start. To disable a password, push vto select Off

and exit with *.

When all settings are done, exit from the menu

with *key. Two options are shown: Save to keep

the settings made, and Undo, to discard all the

changes. Select Save or Undo and push *.

Finally, exit from the slot selection by third *(or

select another slot with ^v and so on).

Monitor state and simulation

Monitor function can be used while

troubleshooting to view some internal values of

the indicator. It can be accessed either from the

front panel or using the configuration software.

Monitor mode is entered in the normal state by

pressing *and vtogether. Select slot with ^v

and push >to enter. The monitored item can be

selected with ^v. To return to slot selection, push

*. To return to normal state, push *once more.

Objects to monitor are described in sections of

each card.

Some monitor items have a possibility to be

locked, so that the indicator does not anymore

update them. Then they may be changed by the

user to test the system. How to lock in Mekuwin,

see its manual. To lock using the front panel, do

as follows:

1. Enter the monitoring state as described

and the slot you want to.

2. Select the item to be locked using ^v

buttons. Do not push >yet.

3. Press and hold >button. Then push ^

also. Release them both.

4. Now you can enter a new value to

simulate/test something.

5. Exit with *.

To return to normal operation, do the same, but

while holding >, push v.

MASTER / SETPOINT

The master is responsible of the user interface (display and buttons) and of the setpoint. To set up an analog

output following the setpoint, see chapter Analog output.

Configuration menu

Conf

Gen

Setpoint

Mode

Startup

Preset

Min

Max

Dec

Gen

Bright

CfCode

Delay

The configuration menu of the master is divided in

two sections, Gen (general) and Setpoint settings.

Gen\Bright

Display brightness 1-15. Default value 7.

Gen\CfCode

Password for all the configuration settings. Will

apply for the other cards too. If the password is

set and forgotten, turn the power off, hold *and >

pressed and switch power on. To set the

password, select Set, push >, and enter the same

password twice. If Set is displayed again, you can

exit with *. The password consists of six

keypresses using all the buttons.

Setpoint\Mode

Operation mode, as described in chapter User

interface, Normal mode.

•Normal: Displaying channel number +

reading.

•Setpoint: Displaying the setpoint all the

time.

•MeaSet: Displaying the input reading or

the setpoint.

Setpoint\Startup

Setpoint value source after power-up.

•Preset: The initial setpoint value is set in

the next menu item.

•Last: The setpoint is preserved during

power-off.

Setpoint\Preset

Setpoint value after power-up. This item is hidden

if Startup is set to Last.

Setpoint\Min, Setpoint\Max

These define the range where the setpoint can be

adjusted.

Setpoint\Dec

Number of digits after the decimal point for the

setpoint. Defines also the smallest setpoint step.

Setpoint\Delay

This defines how long ^or vkey has to be

pressed until the setpoint adjustment mode is

entered. The time is given in seconds (max 12).

Monitor menu

The monitor menu has only one item, Mainch,

which tells which internal channel is currently

being displayed.

INPUT

2022SETP is an input card capable of measuring one mA or V signal. The reading will be put on internal

channel 1.

Configuration menu

Conf

In In

Input

Dec

Pts

Mea1

Sca1

Mea2

Sca2

MeaMin

Lopass

The configuration menu has one submenu, In,

that contains the input settings.

Input

Input signal selection mA or V.

Dec

Number of digits to display after the decimal point.

Can also be set negative to have fixed zeros. E.g.

if Dec=-2, the display will be rounded to 0, 100,

200, etc.

Pts

Number of scaling points.

•0: No input scaling. The input signal will

be displayed as is, in mA or V.

•1: One point offset scaling. Input signal

Mea1 will be converted to scaled reading

Sca1 using appropriate offset. In other

words, Sca1-Mea1 is added to the input

reading.

•2: Two point scaling. Input signal Mea1 (in

mA or V) is converted to scaled reading

Sca1 (in any engineering units) and Mea2

is converted to Sca2. Linear interpolation

and extrapolation is applied. E.g. to

convert 4-20 mA to 0-100(%), set

Mea1=4, Sca1=0, Mea2=20, Sca2=100.

Mea1, Sca1, Mea2, Sca2

Scaling points, see Pts.

MeaMin

Input signals (in mA or V) less than this will be

regarded as a fault. Dashes are displayed and

alarm relays pulled. If you have 4-20 mA input,

you might use MeaMin=3.5 (mA). To disable, set

to some large negative value, e.g. –10000.

Lopass

Digital lowpass filter for input. Functions like a RC

circuit damping variations in the reading. Set the

time constant in seconds. Recommended value 1.

To disable filtering, set to 0.

Monitor menu

Mea

The input reading with no scaling applied, in mA

or V. Can be locked to test the scaling and the

outputs.

Sca

The scaled input reading. Can be locked to test

the outputs.

ANALOG OUTPUT

2000OUT is an analog output card with one active mA or V output.

Configuration menu

Conf

Out Out

Range

From

Rdg1

Out1

Rdg2

Out2

Limit

All the output settings are in submenu Out.

Range

Physical output range:

•mA: milliamp output, capable of

generating approx 0…20.8 mA.

•V: voltage output, generating approx 0…

10.5 V.

From

The internal channel that the output follows:

•1: The input

•8: The setpoint

Rdg1, Out1

The first point in output scaling. The reading Rdg1

(in engineering units) produces physical output

Out1 (in mA or V).

Rdg2, Out2

The other point in output scaling. Linear

interpolation and extrapolation is applied.

Limit

Output limiting. If enabled, the output will be

limited to Out1…Out2, except in fault indication

mode, when it will always give the maximum

output possible. If disabled, the output will use all

of its physical range (see Range).

Monitor menu

The monitor menu contains only one item, Out,

that is the current output value in mA or V. Can be locked to feed different signals in order to test the

external system.

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