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DMPi Series
LSIS Co.,Ltd.
11
Product characteristics
Convenience
Reliability
Return
Total
MCU
Slide S/W
30mA
25A
Save
INV
Return
Total
~100A
MCU
Slide S/W
30mA
25A
Save
INV
Return
Total
MCU
Slide S/W
30mA
25A
Save
INV
Return
Total
~100A
MCU
Slide S/W
30mA
25A
Save
INV
Return
Total
MCU
Slide S/W
30mA
25A
Save
INV
Return
Total
~100A
MCU
Slide S/W
30mA
25A
Save
INV
Return
Total
MCU
Slide S/W
30mA
25A
Save
INV
Return
Total
~100A
MCU
Slide S/W
30mA
25A
Save
INV
Return
Total
MCU
Slide S/W
30mA
25A
Save
INV
Return
Total
~100A
MCU
Slide S/W
30mA
25A
Save
INV
Return
Total
MCU
Slide S/W
30mA
25A
Save
INV
Return
Total
~100A
MCU
Slide S/W
30mA
25A
Save
INV
Return
Total
MCU
Slide S/W
30mA
25A
Save
INV
Return
Total
~100A
MCU
Slide S/W
30mA
25A
Save
INV
Return
Total
MCU
Slide S/W
30mA
25A
Save
INV
Return
Total
~100A
MCU
Slide S/W
30mA
25A
Save
INV
Return
Total
MCU
Slide S/W
30mA
25A
Save
INV
Return
Total
~100A
MCU
Slide S/W
30mA
25A
Save
INV
Return
Total
MCU
Slide S/W
30mA
25A
Save
INV
Return
Total
~100A
MCU
Slide S/W
30mA
25A
Save
INV
Return
Total
MCU
Slide S/W
30mA
25A
Save
INV
Return
Total
~100A
MCU
Slide S/W
30mA
25A
Save
INV
Return
Total
MCU
Slide S/W
30mA
25A
Save
INV
Return
Total
~100A
MCU
Slide S/W
30mA
25A
Save
INV
Integrated Digital Motor Protection Relay based on MCU(Microprocessor Control Unit)
Real Time Processing and High Precision are implemented.
Applicable to invertor circuits
It may be applied to the secondary inverter control circuit with its outstanding resistance to harmonic noise.
Permissible frequency range is 10~200Hz. When the percentage of harmonic is more than 30%,
a harmonic filter is installed. (However, the ground fault protection function should be switched off.)
Function to store the cause(s) of failure / Fault
Up to 5 motor failure events may be saved in the system, so that the failure history can be easily identified.
Up to 5 motor failure events may be saved in the system, so that the failure history can be easily identified.
The display part is separated and attached to the front panel, so that information on current/operating time and
setup can be viewed without taking out the unit. With the separated display, motor protection can be performed.
Communication function
General-purpose RS485/MODBUS communication mode is offered for various system and communication
network configurations. Models with analog current signal (4~20mA DC) output are compatible with systems that
uses the existing TD (Transducer).
A wide range of reset functions
Manual/Automatic/Electrical reset functions are provided for user convenience.
Date information display
When a failure occurs, the date and time of failure occurrence are saved in the system to accurately identify
the date of motor failure.
Password setting
When changing the set values, a password must be inserted.
Total operating time and operating time setting
When the predefined operating time has elapsed, related information is displayed so that operators may replace
the motor bearing and check the refueling cycle.
Terminal/Penetrated types are shared for application in various installation environments
Terminal blocks are detachable, which makes them applied to various installation environments.
Thermal Inverse Time, Inverse Time and Definite Time Modes
According to user’s needs, the motor can be protected in the inverse time mode or definite time mode.
Three-phase digital ampere-meter
Three-phase current is displayed in cycle at intervals of 2 seconds for operators to check the motor state.
Various protection elements and additional functions
Single/3-phase is optional, and output contact as well as the operating time can be set.
Free Voltage power connection (AC/D85~260V) is possible with ZCT built-in option.
High Reliability
The current relay error is reduced from 5% to 3% and the minimum sensible current is lowered from 70% to 30%
of the minimum rating. Phase fail/phase unbalance protection relay correction and delay time can be set.
Inverse time characteristic good for motor protection
Thanks to the inverse time characteristic in which a running time is determined by a size of overcurrent,
the equipment is excellent at motor protection.
Return
Total
MCU
Slide S/W
30mA
25A
Save
INV
Return
Total
~100A
MCU
Slide S/W
30mA
25A
Save
INV
Return
Total
MCU
Slide S/W
30mA
25A
Save
INV
Return
Total
~100A
MCU
Slide S/W
30mA
25A
Save
INV
Return
Total
MCU
Slide S/W
30mA
25A
Save
INV
Return
Total
~100A
MCU
Slide S/W
30mA
25A
Save
INV
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