mm GAVAIZI
V
7
Carlo Gavazzi Controls S.p.A.
DPD
DPD DS ENG16/11/2017
Up to 10 virtual alarms among the above types can be configured. As there are only 2 outputs on the DPD,
certain alarms can be configured without being directly associated to an output.
• Delays
For each one of the Alarms it is possible to set an "Alarm ON" from 0 ( the device reaction time is though <0.2
s ) to 60 s. If the alarm cause restores before alarm ON delay elapsing no output signal will be provided. Alarm
OFF delay can be set from 0 s to 600 s.
Delays are only applicable for non priority alarms. Priority alarms are always immediate.
• Outputs
There are 2 SPDT Electromechanical outputs which can be associated to any of the alarms set. It is also
possible to associate 2 o more alarm by means of AND or OR operators to a specific output.
Each ones of the outputs can be configured as "Normally Energized" or "Normally De-Energized".
• Visual information
The DPD is equipped with 3 LEDs which provide the status information
• LED1 is lit when the Output 1 is energized
• LED2 is lit whne the Output 2 is energized
• LED3 is bicolor and can be blinking or fixed
LED3 key:
LED3 Status
Green On fixed OK
Green Flashing Alarm triggered but configured delay is elapsing
1 red flash Phase or neutral Loss or phase sequence
2 red flashes Under/over-voltage
3 red flashes Under/over-frequency
4 red flashes Asymmetry
5 Flashes Out of range parameter
• NFC communication
DPD is equipped with built-in NFC communication.
With the DPD APP through the NFC communication it is possible to read or write the device configuration as
well as reading the voltage, the frequency or the alarms in real time.
NFC communication does not require any power for the device configuration.
DPDs can be configured without taking them out of the box.
Configuration
The configuration can be prepared on the PC or smartphone, downloaded from another device, by means of
NFC, or picked from file.
Once a configuration has been prepared on the PC it can be uploaded to one of more DPDs.
NFC also allows, when necessary to download the configuration from a device, modify it if necessary and then
upload it to another device.
It is possible to Lock the DPD in order to avoid tampering or unauthorized configuration. The locking/ unlocking
procedure is managed through one of the available apps.
• Operation flow
When powered, after Power On delay elapsing, until mains parameters are within all the alarms threshold
values, the DPD LED3 will be lit green (steady ).
If one of the mains parameters is exceeded the alarm ON delay elapsing starts, LED3 blinks green ( if a delay
is set, else immediately ), at the end of the delay the alarm associated output switches and LED3 flashes RED
( see visual information table ).