Datakom DKM-0224 User Manual
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DKM-0224 User Manual V-1.0 (11.08.2016)-1-DKM-0224ALARM ANNUNCIATORThe DKM-0224 is an 24 channel, 144x144mmalarm annunciator designed to be used in energyand automation systems.Optically isolated digital inputs are equipped withnoise cancelling filters and are capable ofoperating smoothly in high electrical noiseenvironments. The detection delay of inputs areadjustable between 2 and 500ms.The module features 3 relay outputs rated at5Amp. Relays provide Horn, Bell and InternalFailure functions. An additional buzzer is providedinside the unit for audible alarms.The unit features ultra-bright, bicolor (red-green)led indicators. Alarms may be assigned todifferent priority levels in order to reduceconfusion.Using front panel pushbuttons, alarms may beacknowledged and reset, the unit tested.The configuration of the module is performed withjumpers placed on the back panel. Additionalprogramming may be performed from the frontpanel or through programming software.The isolated RS-485 MODBUS RTUcommunication port is free from ground potentialdifferences and allows safe transfer of measuredparameters to automation and monitoringsystems.It is possible to monitor the module and keeprecords 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(alarmacknowledge) pushbutton is pressed and if thefault is still active.STEADY ON: Activated if the fault signaldisappears at SLOW FLASH condition.LED OFF: The alarm led turns off when RESETpushbutton is pressed and fault signal is notpresent.When a fault signal is detected, the internalbuzzer turns on with a period of 1 second. If ACKpushbutton is pressed, the buzzer turns off. IfACK is not pressed within 1 minute, then itswitches to slow sound mode (beeps once every10 seconds.)HORN RELAY: If any “red” alarm led turns on,then the horn relay will also turn on. The relayturns 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 offwhen ACK pushbutton is pressed.WATCHDOG RELAY: At startup the relay turnson. 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 onand if the BELL relay is on, then the “green” ledturns on. If both relays are off then the led is off.SAFE/FAIL LED: If an internal fault condition isdetected at self-test, then this led will turn on“red”, else it turns on “green”.DESCRIPTION FEATURES |
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