LED / LED Indication
LED (Trip)
EOCR-DS3 EOCR-DS3T LED (PWR)
LOAD knob
TAG
Reset
Test
DIP SW
(Fall Safety Mode
(N/R)；RP
On/ Off)
Relay output
Control Power
D-TIME knob
D-TIME knob
Trip Time
Setting
Sec.(Adjustable)
Sec.(Adjustable)
Rate Insulation
Voltage
Rating
Control Voltage
(50/60Hz)
Output Relay
Normally energized
Normally de-energized
N (Fail safety)
R (N Fail safety)
Reset
Manual：Reset by depressing
RESET button
Electrical (Remote):Reset by
interrupting power supply
Ambient Temperature
(Operating)
Ambient Temperature
(Storge)
Between casing & circuit：
2kV (60Hz) for 1 min.
Between contacts:
1kV (60Hz) for 1min.
Between circuits：2kV (60Hz)
for 1 min.
Dielectric Strength
2W below
Consumed Power
Definite
2-LED
Trip Indication
Time Characteristic
35mm Din Rail or Panel
Mounting
LED / LED Indication
Orange LED (TRIP)Green LED (PWR)
Motor Status
Stop (Power Input)
Starting
Normal Running
Overloading
Trip
DS3(T)
Over-current
Locked Rotor
Reverse Phase (RP)
2 LEDs flash altermatively
Phase
Loss
ON
Flashing
Flashing
Flashing
Flashing
Flashing
Flashing
Flashing
OFF
ON OFF
ON
OFF
OFF
OFF
R
S
T
OFF
OFF
ON
1
2
3
4
5
1. When commissioning, set start delay (D-Time knob) to known
motor run-up time, or to the maximum, if not known.
2. Set trip delay time (O-Time knob) to desired trip delay time.
3. Set load current (LOAD knob) at the rated full load or desired
currents.
4. With connections made and control power on, depress TEST
button and hold. Verify the orange LED illuminates and the
internal relay should switch contacts after the sum of D-Time
and O-Time. Depress RESET button.
5. Start the motor and notice run-up time. Then, slowly turn the
LOAD knob , until orange LED flashes, where the 100% of
the actual load current is indicated. Set the LOAD knob to the
desired trip currents.
110～125% Setting of running current is recommended.
6. Reset D-Time knob setting to normal run-up time.
7. Periodic testing with TEST button is recommended to ensure
the full protection and regularly as a preventive maintenance.
EOCR-DS3(T) Instruction Manual
LED Indication
