APAR AR904 Bedienungsanleitung

INSTRUCTION MANUAL

PROGRAMMING DEVICE FOR ANALOGUE

SIGNALS

AR904

Version 1.2.0 May 26, 2014

Thank you for choosing our products.

This manual will aid you with a correct and safe

use and full utilisation of the programming device.

Before installation and use

please read and understand this manual.

If you have any further questions, please contact your technical advisor.

TABLE OF CONTENTS

1. SAFETY RULES ........................................................................................................... 3

2. INSTALLATION GUIDELINES ...................................................................................... 3

3. GENERAL CHARACTERISTICS OF THE PROGRAMMING DEVICE.................................. 3

4. CONTENTS OF THE KIT.............................................................................................. 4

5. TECHNICAL SPECIFICATIONS ..................................................................................... 4

6. ENCLOSURE MEASUREMENTS AND INSTALLATION DATA .......................................... 5

7. DESCRIPTION OF TERMINALS AND ELECTRICAL CONNECTIONS ................................ 5

8. ENCLOSURE MEASUREMENTS AND INSTALLATION DATA .......................................... 5

9. CHANGING THE OUTPUT SETPOINT .......................................................................... 6

10. SETTING CONFIGURATION PARAMETERS ................................................................ 7

11. SOFT START/STOP AND TRIANGLE WAVE GENERATOR .......................................... 9

12. MESSAGES AND ERRORS ........................................................................................ 10

13. COMMUNICATION INTERFACE RS485 (in accordance with EIA RS-485)................ 10

14. COMMUNICATION INTERFACE RS232C (in accordance with EIA RS-232C) ........... 10

15. MODBUS - RTU SERIAL COMMUNICATION PROTOCOL........................................... 11

16. NOTES.................................................................................................................... 12

Particular attention shall be paid to the texts bearing this symbol

The manufacturer reserves the right to make changes in the design and software of the device without decreasing its technical parameters.

1. SAFETY RULES

Before using the device, please carefully read this instruction manual.

in order to avoid electric shock or damage to the device, mechanical

and electrical installation shall be carried out by qualified personnel

before turning on the power supply, make sure that all cables are connected correctly

before making any modifications to the wiring connections, turn off the power supply

to the device

ensure proper working conditions in accordance with the technical data of the device (power supply

voltage,

humidity, temperature, chapter 5)

2. INSTALLATION GUIDELINES

The device is designed to provide an adequate level of resistance to most disturbances that may occur in

the industrial environment. In environments with unknown levels of interference, the following

preventive measures are recommended to prevent possible interference with the device:

Do not operate the unit from the same lines as high-power units without using appropriate

network filters

use shielding of power and signal cables, whereby the screen should be grounded

single-point, as close to the device as possible

avoid routing the signal cables in the immediate vicinity of and parallel to

power cables

it is advisable to twist the signal cables in pairs

avoid proximity to remote-controlled equipment, electromagnetic meters, high-power loads

phase-controlled or grouped loads and other equipment which generates

high impulse disturbances

ground or reset the metal rails on which the rail-mounted devices are installed

Remove the protective foil from the LED display screen before starting to operate the unit.

3. GENERAL CHARACTERISTICS OF THE PROGRAMMING DEVICE

The device enables controlling or testing devices with current or voltage input.

(proportional valves, actuators, inverters, motors, etc.)

2 analogue outputs (simultaneous operation):

- current 4÷20mA or 0÷20mA (active, cannot be supplied in a two-wire current loop)

voltage from 0÷10V

soft start/stop (ramp) or triangular wave generator manually or automatically triggered when power

is applied.

programmable setpoint, output signal step change, display range, initial setpoint after power supply

start, soft start/stop, communication, access and other configuration parameters

7-segment LED display with brightness control

optional RS485/RS232 serial interface (galvanically isolated, MODBUS-RTU protocol)

parameter configuration methods:

- using an IP65 foil keypad located on the front panel of the device

- using an AR955 programmer or the RS485/RS232 interface and a free computer program

ARSOFT- WZ1 (Windows 2000/XP/Vista/7/8)

software and programmer which allow to preview the setpoint and quickly configure individual or

predefined sets of parameters previously saved on a PC for re-use, for example for other referencing

units of the same type (configuration duplication), access to configuration parameters is protected

by a user password.

High accuracy and immunity to interference

available accessories:

- programmer AR955

- RS485 to USB converter

CAUTION:

Before commencing operation of the programming device, please read this instruction manual

and correctly perform electrical and mechanical installation and configuration of parameters.

4. CONTENTS OF THE KIT

programming device

Instruction manual

warranty card

5. TECHNICAL SPECIFICATIONS

Number of analogue outputs

- current(active)

standard

0/4÷20mA (1)

- full range of changes

3.8÷21mA / 0÷21mA / 21÷3.8mA / 21÷0mA

- load resistance

R0≤ 1 kΩ

- resolution (maximum)

1,7 μA

- voltage in

standard 0/2÷10V

- full range of changes

0÷10.5V / 10.5÷0V

- load resistance

R0> 2.3 kΩ (load current I0< 4.5mA)

- resolution (maximum)

0.84 mV

Processing errors(at ambient temperature 25°C):

- basic

0.1 % of full output range ±1 digit

- additional for ambient temperature changes

< 0,005 % inut range /°C

Output response time(10÷90%)

200 ms

RS485

Communication

interface

- protocol

MODBUS-RTU

- speed

2.4 ÷ 38.4 kb/s

- symbol format

8N1 (without parity bit, 1 stop bit)

- galvanic separation

500V, 50Hz, 1min

Display

7-segment LED

(1 line, 4 digits)

- height and colour

20mm, red (adjustable brightness)

- range of indications

-1999 ÷ 9999, programmable

- decimal point position

Programmable, 0 ÷ 0.000

Power supply

- 230Vac

85 ÷ 260 Vac/ 4VA

- 24Vac/dc (optional)

20 ÷ 50 Vac/ 4VA, 20 ÷ 72 Vdc/ 4W

Nominal conditions of use

0 ÷ 50°C, <90 %RH (w/ out condensation)

Working conditions

air and neutral gases

Protection level

IP65 from the front panel, IP20 from the

connectors side

Weight

~160g

Electromagnetic compatibility (EMC)

resistance: according to EN 61000-6-2 standard

emissivity: according to the standard PN-EN 61000-6-

(1) the output cannot be powered by a two-wire current loop

717

poliwęglan

NORYL

WIDOK OD STRONY

UCHWYTU MOCUJĄCEGO

6. ENCLOSURE MEASUREMENTS AND INSTALLATION DATA

Type of enclosure

array, Incabox XT L57

Materiał

self-extinguishing NORYL 94V-0,

polycarbonate

Dimensions of the

enclosure

96 x 48 x 79 mm

Array window

92 x 46 mm

Attachment

handles on the side of the enclosure

7. DESCRIPTION OF TERMINALS AND ELECTRICAL CONNECTIONS

Terminals

Description

1-2

current output 0/4÷20mA

3-4

voltage output 0÷10V

5-6-7

RS485/RS232 serial interface (MODBUS-RTU transmission protocol)

8-9

230Vac or 24Vac/dc power input

PRG

programming interface compatible with the AR955 programmer (do not use

simultaneously with the RS485/RS232 interface)

a) numbering of connectors and signal output methods

CAUTION:

Connecting devices other than the AR955 programmer to the PRG socket may damage

the connected device and the AR904 programming device

8. BUTTON FUNCTIONS

7-segment LED display

programming buttons

polycarbonate

VIEW FROM THE SIDE OF

MOUNTING HANDLE

a) button functions in setpoint display mode (normal mode)

Button

Description[and the corresponding symbol in the manual].

[UP] or [DOWN]:

Increase or decrease the setpoint of the output signal by the set

change value ( parameter 6:, chapter 10 )

[SET] + [UP]:

- incremental (extreme) change of the setpoint value of the output signal -

highest

value of the indication range (parameter 3:) or limiting the setting (5:)

[SET] + [DOWN]:

- incremental (extreme) change of the setpoint value of the output signal - lowest

value of the indication range (parameter 2:) or limiting the setting (4:)

[UP] and [DOWN] (simultaneously): entering the parameter configuration menu

(hold pressed for more than 1 sec.) If parameter 13:=(password protection

is enabled) enter the password (chapter 10)

[SET]

Start/stop the soft start/stop function

(hold pressed for more than 1.5 seconds). If parameter 8: and 9: = 

the function is inactive (chapter 11)

(b) button functions in the parameter configuration menu (Chapter 10)

Button

Description

[SET]

- editing the current parameter

- confirm and save the edited parameter value

[UP] or [DOWN]:

- move to the next or previous parameter name

- change the value of the edited parameter

[UP] and [DOWN] (simultaneously):

- cancelling changes in the edited value (return to parameter name)

Return to the setpoint display mode (hold pressed for > 0.5s).

9. CHANGING THE OUTPUT SETPOINT

Pressing the [UP] or [DOWN] button in the setpoint value display mode causes to change the value by a

step (parameter 6:, chapter 10, Table 10). Changes in the output signal are proportional to the

changes in the displayed value. Using a combination of buttons[SET]+[DOWN] instantly sets the output

level to the lowest possible value (2: or 4:) while [SET]+[UP] sets it to the highest possible value

(3: or 5:). In addition, the output signal can be also set in the parameter programming mode

(parameter 7:) and via the serial interface RS485/RS232 or AR955 programmer (Chapter 15, Table 15).

Additionally, it is possible to set the value to a level which exceeds the range of parameters 2: and

3:. The value of the overdrive for buttons is ±5% for the 4÷20mA (2÷10V) output and +6.2% for the

remaining outputs.

10. SETTING CONFIGURATION PARAMETERS

All configuration parameters of the device are contained in EEPROM internal memory.

There are two ways to configure the parameters:

1. With IP65 foil keypad on the front panel of the device:

- enter the configuration menu from the setpoint display mode (by simultaneously pressing

[UP] and [DOWN] for a time greater than 1 sec.) If parameter 13: =  (password protection

on) the following message will appear on the display, followed by  with the first digit

blinking, using the [UP] or [DOWN] button, enter the access password (by default, parameter

12: = ), moving across positions and entering the code can be done with the [SET]

button.

- after entering the configuration menu, the mnemonic names of the parameters are displayed

( <->

 <->  <-> itd. ), pressing the [UP] button allows to move to the next parameter, while

pressing the [DOWN] button moves to

the previous parameter (for a consolidated list of configuration parameters, see Table 10)

- in order to change or preview the value of the current parameter press the [SET] button

- by pressing [UP] or[DOWN] you can change the value of the edited parameter

- the modified value of a parameter can be confirmed by pressing the [SET] button or cancelled by

pressing [UP] and [DOWN]

(simultaneously), which will in turn display the name of the parameter

2. Via RS485/RS232 portor the AR955 programming set and the ARSOFT-WZ1 computer software:

- connect the referencing-unit to the computer port and start the ARSOFT-WZ1 application

- after the connection has been established, the current setpoint is displayed in the program

window.

- setting and previewing the parameters of the device is available in the parameter configuration

window.

the new parameter values must be confirmed by pressing Approve changes

- the current configuration can be saved to a file, values can be also loaded from a file

CAUTION:

Do not use both the RS485/RS232 port and the AR955 programming set at the same time, because

this will cause communication errors.

To restore the factory settings when turning the device on simultaneously press[UP]and [DOWN] buttons

until the password entry menu appears (), and then enter the code . Alternatively, you can use

the default configuration file in ARSOFT-WZ1.

Table 10. Configuration parameters

Parameter

Range of parameter variation and description

Factory

settings

0:

type of current and

voltage output



standard 4..20 mA (0..10V)





standard 0..20 mA (0..10V)

1:

dot position



no dot



(0.0)













2:

the bottom of the

display range

 ÷  units - display for 0mA, 4mA, 0V - beginning of output

scale



3:

upper range of

indications

 ÷ units - display for 20mA, 10V - end of output scale



4:

set lower limit

 ÷  units, lower setpoint limit

(Parameter 7:) when setting up using the buttons on the device



5:

upper limit

 ÷  units, upper setpoint limit

(Parameter 7:) when setting up using the buttons on the device



6:

step change

÷  units, step change for the setpoint (parameter 7:) when

setting up using the buttons on the device



7:

setpoint

Lower limit: parameter 2: or 4:, upper limit: parameter

3: or 5:, change step: 6:, when setting up using the

buttons on the device



8:

soft start time



÷  s

the duration of the rising slope (ramp), for the value

offunction switched off, description in chapter 11



deactivated

9:

soft stop time



÷  s

duration of descending slope (ramp), for values 

function switched off, description in chapter 11



deactivated

10:

ramp release mode



automatic

soft start/stop (ramp) trigger after each power-on

(chapter 11)



Manual

operation



manual

soft start/stop (ramp) triggering by means of a manual

push-button[SET](Chapter 11)

11:

Setpoint setting lock



deactivated

setpoint change inhibition disabled by pushbuttons



deactivated

 activated

button lock activated

12: access password

 ÷ 

password for accessing the setup menu



13: password

protected configuration



access to configuration menu is not password-

protected



deactivated



Entering the configuration menu is protected by an

access password.

14: display

brightness

 ÷  %, change by 10%

 %

15:

MODBUS-RTU address

÷ 

the individual address of the device in the RS485

network

(chapter 13) or for the AR955 programming unit



16: RS485/232 or

AR955 programmer

transmission speed

 kbit/s

 kbit/s

 kbit/s

 kbit/s

 kbit /s

 kbit/s

17: start setpoint

(7: ) after powering

on (1)



last stored setpoint (7:)





range start (2:) or set lower limit (4:)



range end (3:) or set upper limit (5:)

Remarks: (1) – parameter available since version (device firmware can visible after powering on)

11. SOFT START/STOP AND TRIANGLE WAVE GENERATOR

The device is equipped with the function of a ramp (soft start and stop) operating according to the

diagrams below (Figures 11.1, 11.2, 11.3). In order to start the function, the soft start time (ascending

slope, parameter 8) must be configured:Chapter 10) or of the soft stop (falling slope, 9:) and

the method of triggering (triggering, 10: ). If both times are non-zero (8:and 9: ) a

periodical triangle wave is generated at the outputs. The limit values (amplitudes) of the output signals

are defined by the following parameters 2:, 3:, 4: and 5:.

This function is activated automatically after the power supply is switched on (when parameter 10:

= ) or manually (10: = ) with the [SET] button (hold pressed for longer than 1.5 sec). In

addition, the ramp can be stopped and restarted at any time by pressing the [SET]button (a momentary

message  appears for start or  - for stop).

Output status in this mode is automatically updated 4 times per second.

Fig.11.1 Principle of operation of outputs in the soft start mode (parameter  > 0,  = ).

Fig.11.2 Principle of operation of outputs in the soft stop mode (parameter  = ,  > 0).

Fig.11.3 Zasada działania outputs in the triangle wave generator mode (parameter  > 0,  > 0).

set value

automatic or manual start

using the [SET] button

automatic setting (ramp)

manual setting

output signal

time

set value

automatic or manual start

using the [SET] button

automatic or manual start

using the [SET] button

automatic setting (ramp)

manual setting

output signal

time

12. MESSAGES AND ERRORS

The following instantaneous messages may appear while the unit is operating:

Code

Message description



Entering the password mode for accessing configuration parameters (chapter 10).



an incorrect password has been entered



Entering the parameter configuration menu.



setpoint setting lock on (11: = , Chapter 10)



Setpoints lock due to activating ramp function (Chapter 11)



Manual starting of the soft start or stop function ( [SET] button)



Manual stopping of the soft start or stop function ( [SET] button)

13. COMMUNICATION INTERFACE RS485 (in accordance with EIA RS-485)

Devices of different manufacturers that form RS485 network (e.g. RS485/USB converters) can have built-

in polarizing and terminating resistors, and then there is no need to use external elements.

14. COMMUNICATION INTERFACE RS232C (in accordance with EIA RS-232C)

master device,

e.g. computer

Max. length of RS485 cord –1 km.

Max number of devices in RS485 line –30, in order to increase the

number of devices, use RS485/RS485 amplifiers.

Terminating resistors when MASTER is at the start of the line (fig.

above):

-At the start of the line –2 x 820Ω to GND and

MASTER +5V and 150 Ω between the lines,

-At the end of the line –150 Ω between the lines

Terminating resistors when MASTER is in the middle of the line:

-By the converter –2 x 820 Ω, to GND and +5V

converter,

-On both ends of the line - 150 Ω between each of the

lines

COMPUTER or

RS232C DRIVER

Maximum cable length –10 m.

Maximum number of devices connected to a computer –1.

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