Digital Motor Protection Realy
DSP-C Series
Mode
Function
Description
Factory
2sec
0.1sec
OFF
2sec
50%
OFF
90
6500
5
OFF
OFF
hr
9600
1
1
60
0.1
2400, 9600, 19200, 38400bps/CCM,CCL Type
to decide communication
speed
bPS
Addr
trIP
to put self-address to
communicate with pc
trip information in order:faulty phase and faulty value is
appeared alternatively as controlling "UP" or "DN" key
range of number:#1 ~ #250/CCM,CCL Type
to show latest number of 8 trip
cause
t-AUt
to preset total possible time
available for executing defined
times of auto reset
30min ~ 60min/adjustable
0.1 ,1~ 300sec/adjustable
to preset auto reset time
At
rESEt
to decide how to reset trip
state
*Hr:manual reset/Password input → main trip,
Ec-tb trip(Aux)
*Er:electrical reset : "Reset" key, "CLR" Key, Control
power-off
*AuL-#(n times):Auto reset by followed condition/
max n=9:n=1:possible to do only by entering password
*Password reset : reset is done by comming out from
operating mode after input password
*Auto:only available for "OC" trip
*OFF:3 phase current(L1,L2,L3),GF current
*ON:[3 phase current] ,GF current] + [AWT]
*interval time between each displayed factor : 3sec
to indicate additional factor
besides basic factor to indicate
running operation value in a order
rOtA
tEmP
dC
ALt
AL
to protect over temperature
*8sec, 1~150OC, sensed by PT100, only for CCM-PT/
CCL-PT type
*to transfer maximum current of 3 phase current into 20mA
,and 4mA means zero ampere output/CTM,CTL Type
to decide max current to
change into 20mA
AU-O
to preset a limit of
accumulated working time
necessary to give alarm.
0.1 hr ~6553.5 hr in 0.1 hr step
to preset alarm level
rate(%) to OC
* % range : 65%~100%/adjustable ("AL" is preset in
"Auo" mode)
Edt
EOt
UC
Ut
Ub
to preset a kind of AUX trip
output
*oFF:same as main output
*trip output for AL/Uc/Shoc/Ec is independent from
main trip → this trip output is reset naturally if trip
cause is clear
*Ec-tb: only for ground fault protection ,but reset is not
happened even though trip cause is clear
*trip is stored in “trip” mode as a one of 8 latest event
*formular:[(max-min) /max]*100 [%]
*range:30% ~ 90% *minimum available current:0.3A
to preset current unbalance
rate(%) among 3 phasea
to preset trip delay time to
protect under current
1 ~ 30sec/adjustable
to preset a range to protect
under current
*10 type : 0.4A~under "OC" preset value
*70 type : 4.9A~under "OC"preset value
0.1 ~30sec/adjustable
to preset operating trip delay
time to protect ground fault
to preset starting trip delay time
1 ~ 25sec/adjustable
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