Datakom DKM-0208 User manual

DKM-0208 User Manual V-1.0 (26.10.2015)

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DKM-0208

ALARM ANNUNCIATOR

The DKM-0208 is an 8 channel, 96x96mm alarm

annunciator designed to be used in energy and

automation systems.

Optically isolated digital inputs are equipped with

noise cancelling filters and are capable of

operating smoothly in high electrical noise

environments. The detection delay of inputs are

adjustable between 2 and 500ms.

The module features 3 relay outputs rated at

5Amp. Relays provide Horn, Bell and Internal

Failure functions. An additional buzzer is provided

inside the unit for audible alarms.

The unit features ultra-bright, bicolor (red-green)

led indicators. Alarms may be assigned to

different priority levels in order to reduce

confusion.

Using front panel pushbuttons, alarms may be

acknowledged and reset, the unit tested.

The configuration of the module is performed with

jumpers placed on the back panel. Additional

programming may be performed from the front

panel or through programming software.

The isolated RS-485 MODBUS RTU

communication port is free from ground potential

differences and allows safe transfer of measured

parameters to automation and monitoring

systems.

It is possible to monitor the module and keep

records with Datakom Rainbow+ software.

The supply input is isolated from other terminals.

The module has two supply versions being 19-

150V-DC or 85-305V-AC (88-400V-DC).

When the unit detects a fault signal from an input,

the related alarm led becomes active.

FAST FLASH: At the first detection of the fault.

SLOW FLASH: Activated when the ACK(alarm

acknowledge) pushbutton is pressed and if the

fault is still active.

STEADY ON: Activated if the fault signal

disappears at SLOW FLASH condition.

LED OFF: The alarm led turns off when RESET

pushbutton is pressed and fault signal is not

present.

When a fault signal is detected, the internal

buzzer turns on with a period of 1 second. If ACK

pushbutton is pressed, the buzzer turns off. If

ACK is not pressed within 1 minute, then it

switches to slow sound mode (beeps once every

10 seconds.)

HORN RELAY: If any “red” alarm led turns on,

then the horn relay will also turn on. The relay

turns off when ACK pushbutton is pressed.

BELL RELAY: If any “green” alarm led turns on,

then the bell relay will turn on. The relay turns off

when ACK pushbutton is pressed.

WATCHDOG RELAY: At startup the relay turns

on. If the board fails, then it turns off.

HORN/BELL LED: If the HORN relay turns on,

the “red” led turns on. If the HORN relay is not on

and if the BELL relay is on, then the “green” led

turns on. If both relays are off then the led is off.

SAFE/FAIL LED: If an internal fault condition is

detected at self-test, then this led will turn on

“red”, else it turns on “green”.

DESCRIPTION

FEATURES

DKM-0208 User Manual V-1.0 (26.10.2015)

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Electrical equipment should be installed only by qualified

specialist. No responsibility is assured by the manufacturer or

any of its subsidiaries for any consequences resulting from the

non-compliance to these instructions.

Check the unit for cracks and damages due to transportation. Do

not install damaged equipment.

Do not open the unit. There are no serviceable parts inside.

Fuses must be connected to the power supply and phase voltage

inputs, in close proximity of the unit.

Fuses must be of fast type (FF) with a maximum rating of 6A.

Disconnect all power before working on equipment.

When the unit is connected to the network do not touch

terminals.

Short circuit terminals of unused current transformers.

Any electrical parameter applied to the device must be in the

range specified in the user manual. Although the unit is designed

with a wide safety margin, over-range parameters may reduce

lifetime, alter operational precision or even damage the unit.

Do not try to clean the device with solvent or the like. Only clean

with a dump cloth.

Verify correct terminal connections before applying power.

Only for panel base mounting.

SAFETY NOTICE

CAUTION

Failure to follow below instructions

will result in death or serious injury

DKM-0208 User Manual V-1.0 (26.10.2015)

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1. INSTALLATION INSTRUCTIONS

1.1. FRONT AND BACK PANELS

1.2. MECHANICAL INSTALATION

1.3. ELECTRICAL INSTALLATION

2. PUSHBUTTON FUNCTIONS

3. LED FUNCTIONS

4. SETTINGS

4.1. JUMPER SETTINGS

4.2. SIGNAL LED RED/GREEN SETTINGS

4.3. BUZZER SETTINGS

5. MODBUS COMMUNICATION

5.1. INTRODUCTION

5.2. PROGRAM PARAMETERS

5.3. COMMANDS

5.4. CALCULATED VALUES

6. TECHNICAL SPECIFICATIONS

TABLE OF CONTENTS

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Before Installation:

Read the user manual carefully, determine the correct connection diagram.

Remove all connectors and mounting brackets from the unit, then pass the unit through

the mounting opening.

Put mounting brackets and tighten. Do not tighten too much, this can brake the

enclosure. Spring type brackets do not need to be tightened.

Make electrical connections with plugs removed from sockets, then place plugs to their

sockets. Otherwise, the sockets may get damaged.

Be sure that the relay outputs are not over-loaded. Use auxiliary contactors if necessary.

Below conditions may damage the device:

Incorrect connections.

Incorrect power supply voltage.

Voltage at measuring terminals beyond the specified range.

Current at measuring terminals beyond the specified range.

Overload or short circuit at relay outputs.

Below conditions may cause abnormal operation:

Power supply voltage below minimum acceptable level.

1. INSTALLATION INSTRUCTIONS

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Panel Cutout Required Panel Depth

1.1 FRONT and BACK PANELS

1.2 MECHANICAL INSTALLATION

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Although the unit is protected against electromagnetic disturbance, excessive disturbance

can affect the operation and measurement precision

ALWAYS remove plug connectors when inserting wires with a screwdriver.

Fuses must be connected in series with the power supply, in close proximity of

the unit.

Fuses must be of fast type (FF) with a maximum rating of 6A.

Use cables of appropriate temperature range.

Use adequate cable section, at least 0.75mm2 (AWG18).

1.3 ELECTRICAL INSTALLATION

Do not install the unit close to high electromagnetic noise

emitting devices like contactors, high current busbars,

switchmode power supplies and the like.

Be sure that the relay outputs are not over-loaded.

Use auxiliary contactors if necessary.

DKM-0208 User Manual V-1.0 (26.10.2015)

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BUTTON

FUNCTION

If the pushbutton is pressed all fault leds turn off, Horn and

Bell relays are released. If the fault signal still persists, the

fault alarm re-appears again. This button is also used in

settings menu.

If the pushbutton is pressed, all leds flash green and red in

sequence, the internal buzzer sounds, Horn, Bell and

Watchdog Relays turns on and off with a period of one

second. During this test, if the pushbutton pressed for 3

seconds, the buzzer function can be disabled/enabled. By

pressing the pushbutton again, the module exits from the

test. This button is also used in settings menu.

If the pushbutton is pressed, all leds turn-on with the pre-

adjusted color. (If it is pressed again, the unit returns back

to normal operation.) After pressing it short, if this button

is pressed for 3 seconds, then the first Led flashes with the

pre-adjusted color and the unit enters the settings menu.

If the pushbutton is pressed, fast flashing leds turn into

slow flashing(or Steady On) state, the internal buzzer turns

off. Horn and Bell relays are released. This button is also

used for exiting the settings menu.

2. PUSHBUTTON FUNCTIONS

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SIGNAL LEDs: There are 8 red/green

adjustable signal leds on the panel.

According to the input signal and pressed

pushbutton,leds can be on Fast Flash,

Slow Flash, Steady On and Off states.

FAST FLASH: At the first detection of the

fault.

SLOW FLASH: Activated when the

ACK(alarm acknowledge) pushbutton is

pressed and if the fault is still active.

STEADY ON: Activated if the fault signal

disappears at SLOW FLASH condition.

LED OFF: The alarm led turns off when

RESET pushbutton is pressed and fault

signal is not present.

HORN/BELL LED: If the HORN relay

turns on, the “red” led turns on. If the

HORN relay is not on and if the BELL

relay is on, then the “green” led turns on.

If both relays are off then the led is off.

FAIL/SAFE LED: If an internal fault

condition is detected at self-test, then this

led will turn on “red”, else it turns on

“green”.

HORN RELAY: If any “red” alarm led

turns on, then the horn relay will also turn

on. The relay turns off when ACK

pushbutton is pressed.

BELL RELAY: If any “green” alarm led

turns on, then the bell relay will turn on.

The relay turns off when ACK pushbutton

is pressed.

WATCHDOG RELAY: At startup the

relay turns on. If the board fails, then the

wathcdog relay turns off.

3. DISPLAY AND RELAYS

Horn Button

Reset Button

Signal Leds

(1-8)

Test Button

Ack Button

Horn/Bell Led

Fail/Safe Led

Alarm Labels

(1-8)

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The main configuration of the unis is done with jumpers located on back panel.There are

8 jumpers on the unit and the settings are described below.

1-2-3. Jumper: 4. Jumper 5-6-7-8. Jumper:

Filtering Time Setting: BaudRate Setting: Modbus Adress Setting:

1 2 3 4 5 6 7 8

1 1 1 2ms 1 9600 baud 8 4 2 1

1 1 0 5ms 0 19200 baud There are 16(1-16) adresses

1 0 1 10ms can be defined. For example:

1 0 0 20ms 5(OFF),6(OFF),7(OFF),8(OFF)

0 1 1 50ms 1 + 8 + 4 + 2 + 1 = 16

0 1 0 100ms 5(OFF),6(ON),7(ON),8(OFF)

0 0 1 200ms 1 + 8 + 0 + 0 + 1 = 10

0 0 0 500ms 5(ON),6(ON),7(ON),8(ON)

1 + 0 + 0 + 0 + 0 = 1

Adjusted led colors can be checked by pressing the TEST pushbutton.(If the TEST

pushbutton is pressed again, the unit returns back to normal operation) After that, if the

TEST pushbutton is pressed long (for 3 seconds) first led flashes with the adjusted color.

By pressing RESET pushbutton, signal leds can be selected from up to down, by

pressing HORN pushbutton signal leds can be selected from left to right. The color of the

signal can be adjusted by pressing the TEST pushbutton. After pressing the ACK

pushbutton all leds are seen with the adjusted color.(If the ACK pushbutton is pressed

again, the unit returns back to settings menu) After that, if the ACK pushbutton is

pressed long(for 3 seconds) the unit saves all settings and exist from the menu.

If the HORN pushbutton is pressed, all leds flash green and red in sequence, the internal

buzzer sounds, Horn, Bell and Watchdog Relays turns on and off with a period of one

second. During this test, if the pushbutton pressed long(for 3 seconds) buzzer function

can be disabled/enabled. By pressing the pushbutton again, the unit exists from the test.

4. SETTINGS

4.1 JUMPER SETTINGS

4.2 SIGNAL LED RED/GREEN SETTINGS

4.3 BUZZER SETTINGS

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The unit has serial communication port that can be integrated to automation systems.

Serial port is a standart RS-485 MODBUS-RTU isolated from supply input and

measuring terminals. Therefore, the unit survives under harsh industrial conditions

without any damage.

The MODBUS properties of the unit are:

-Data transfer mode: RTU

-Serial data: 9600 and 19200 bps, 8 bit, no parity, 1 bit stop

-The unit replies within 4.3ms when it receives a message.

Each register consists of 2 bytes(16 bits). Larger data structures will contain multiple

registers.

For further details of Modbus Protocol, “Modicon Modbus Protocol Reference Guide”

can be rewieved. The guide can be downloaded from

www.modbus.org/docs/PI_MBUS_300.pdf

Supported Function:

- Function 3 (Read multiple registers)

- Function 6 (Write single register)

- Function 16 (Write multiple registers)

Error Codes:

There are only 3 error codes are being used:

01: Invalid function code

02: Invalid adress

10: Read protection (try to write Read-Only memory)

Data Types:

Each register consists of 16 bits (2 bytes)

If the data type is byte, only low byte is valid. Ignore high byte.

A larger data structure(more than 16bit) will contain multiple registers.

Least significant register comes first.

Baudrate Options:

4th jumper determines Modbus Baudrate.

BaudRate

Value

9600

19200

5. MODBUS COMMUNICATION

5.1 INTRODUCTION

Table of contents

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