Samwha DSP DSP-DVR - Page 9

PL/oFF/ setting
value
to protect phase
loss by
incoming line
voltage
*OFF : disable
*trip in case voltage unbalance rate is over 45%
:[(max-min)/max]*100[%]
* 0.5 ~ 5 sec/definite,adjustable
*In case 3 phase is normal power-off state, this mode is
not worked.
*This protection is not available for the load such as a
motor which the reversed voltage can be created by the
internal common point of 3 phase line ,but available for
initial phase loss
*This mode is not available for single phase line.
OFF
RP/oFF/ setting
value
to protect
reverse phase
by incoming
line voltage
*OFF : disable
* within 0.5sec
*In case 3 phase is normal power-off state or phase
loss state , this mode is not worked.
*Auto reset is not possible,but manual reset.
*”dt” is not interfaced with this mode
OFF
v-Ub/oFF/
setting value
to preset
voltage
unbalance
protection
rate(%)
*trip in case preset rate condition is kept on preset time
or more
*rate:[(Max V-Min V)/Max V]*100 [%]
*adjustable range:5%~30%
oFF
v-Ut/setting
value
to preset
operating trip
delay time for
voltage
unbalance
* to preset a operating trip time for voltage unbalance
*Adjustable range: 1~10 sec
3초
rESt/Hr/Er
to decide how
to reset trip
state
*to decide how to reset in case of trip
*Hr : manual reset by key touch
→Password Input :rP ,PL/trip state is still remained
even in case of power OFF-ON,but possible only
by password input
→”CLR” key: OV,UV,v-UB
→ not possibl to preset setting value under trip state
*Er : electrical reset
→ "CLR" Key
→ Control power off
→ Auto reset
: “OV”, “UV”, “v-Ub”
:possible to reset naturally after preset time by
“AUT” mode is elapsed if trip cause is clear
→ not possibl to preset setting value under trip state
Er