AUMSHIVAY ENGINEERING PRIVATE LIMITED
B-21, Bhan Nagar, Queens Road, Jaipur-302021
Website: www.aumshivay.com, www.omengineering.in
E-mail:admin@aumshivay.com
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REG. OFFICE:VILLA NO. 60,LATA NAGAR, KALWAR ROAD, JHOTWARA, JAIPUR - 302012
TM
TM
Features:
4 Digit LED display
Measurement of RYB, Zero Sequence current and Thermal capacity.
Separate LED’s for indication of Motor operational, Trip & Thermal OL/ pre-alarm status.
Programmable thermal OL time constant right from 1 sec to 40 sec.
2 nos. of C/O output contacts.
1 no. Programmable Binary input for remote operation.
It can be configured for either of these operations:
Inhibit Motor Start
Trip Reset
Instant Tripping
Relay testing facility
Trip data recording
Fault current or cause of last trip is displayed.
Setting Display
When the relay is not under tripping condition, pressing
"RESET/MODE" will scroll through various settings.
Function LED showing number or alphabet to indicate
which setting is being view as shown in Figure 3. Table 1
gives description of each setting.
APPLICATIONS
MPR 300 offers you greater security, operator safety through
proper co-ordination in case of earth fault on motor feeder.
MPR300 is used for protection of motors widely used in fans,
pumps, crushers, mills, compressors, belt conveyors,
centrifuges, mixers, ventilators, escalators, motorized valves
etc.
Tip: To quickly jump back to current/thermal display
during setting display, press and hold "RESET/MODE"
for 1.5 second
PROGRAMMING
SETTING
Step 1: Press "RESET/MODE" until the Function LED shows
the required setting.
Step 2: Press "UP" and "DOWN" simultaneously to enter
programming mode.
The Function LED blinks to indicate the relay is in
programming mode.
Step 3: Press "UP" or "DOWN" to change the value.
Step 4: To save the new value, press "UP" and "DOWN"
simultaneously again. Programming mode exits,
function LED stop blinking.
To exit programming mode without saving, press
"RESET/MODE" once.
