Samwha DSP DSP-DVR - Main Features

2.Main Features
 MCU based control, 8 Pin Type Compact size
Easy Installation
: Panel Mounting Type → DSP-DVR
: Panel Flush Mounting Type → DSP-DVR-M
 Operation based on direct line voltage detection
: Protection : Over/Under voltage, Phase Loss, Reverse Phase, Voltage Unbalance
: Indication : Voltage[Line/Average], Frequency
:Time-Voltage operational characteristic → Definite / Inverse
 Over/Under Voltage Protection
:Rated Line Voltage → 100 ~ 500VAC
:Over Voltage protection Range → within (+) 20% to line voltage
: Under Voltage protection Range → above (–) 20% to line voltage
 Possible to preset operation time for over/under voltage each, repectively
 Perfect check for initial line state
a)”dt”(trip delay time) mode is preset “OFF”
▸Preset “a” in “out” mode
:Main trip output(95-98) is energized (Open → Close ) in case the rated line voltage with normal
forward phase state is sensed initially
: Main trip output(95-98) is trip(Close → Open) within 0.5sec after energizing(Open→Close)
if the initial state is under phase loss
: Main trip output(95-98) is trip(Close → Open) after operational preset time is elapsed from
instant energizing point(Open→Close) as showing a trip cause if the initial line state is under
over/under voltage,reverse phase, voltage unbalance
: v.OFF is shown in case the line voltage is not sensed initially or voltage is dropped to zero(0)
while the normal operation is doing.
▸Preset “b” in “out” mode
:Main trip output(95-98) is not energized (Open → Open ) even if the rated line voltage with
normal forward phase state is sensed initially
: Main trip output(95-98) is trip(Open → Close) within 0.5sec if the initial state is under phase loss
: Main trip output(95-98) is trip(Open →Close) after operational preset time is elapsed as showing
a trip cause if the initial line state is under over/under voltage,reverse phase, voltage unbalance
: v.OFF is shown in case the line voltage is not sensed initially or voltage is dropped to zero(0)
b)”dt”(trip delay time) mode is preset a value(time)
▸Preset “a” in “out” mode
: Main trip output(95-98) is energized (Open → Close ) after “dt” is elapsed in case the rated line
voltage with normal forward phase state is sensed initially
: Main trip output(95-98) is still opened(not trip) even after “dt” is elapsed if the initial state
is under phase loss,also “PL’ is shown
: Main trip output(95-98) is energized (Open → Close) right after “dt” is elapsed if the initial line
state is under over/under voltage, voltage unbalance, and then it is trip(Close → Open) after
operational preset time is elapsed from energizing point(Open→Close) as showing a trip cause