DMPi

Definite/Inverse time option and various protection methods • Storage of causes of failure • Separated display part using cables • MODBUS communication, 4~20mA DC output • Operating time displayed for each model

Features

Convenience

Integrated Digital Motor Protection Relay based on MCU(Microprocessor Control Unit)
Applicable to invertor circuits
A function to store the cause(s) of failure/fault exists
Up to five motor failure events may be saved in the system so that failure history may be easily identified
Communication function
A wide range of reset functions
Date information display
Password setting
Total operating time and operating time setting
Terminal/Penetrated types are shared for application in various installation environments

Reliability

Thermal inverse time, inverse time, and definite time modes
Three-phase digital ampere-meter
Various protection elements and additional functions
High reliability
Inverse time characteristic for motor protection

Specification

Rating	Specification
Communication code	1 ~ 247
Communication speed	9600, 19200, 38400, 57600 bps
Communication parity	None, Even, Odd
Fixed to 1bit	1bit
Communication data swap	Limited to float, long data of Off / On (0x04 (Read input registers))

Rating		Specification
Protection funtions		Overcurrent, phase fail, phase unbalance, stall, locked rotor, reverse phase, ground fault (Type option)Instance (Type option)
Connection method		Penetrated / Terminaltype
Operating time characteristics		Thermal heat build-up inverse time / Non-thermal heat build-up inverse time / Definite time
Rated current		0.5~6A/5~65A(Rating option upon placing an order)
Display		4 digit, 7-Segment
Operating power		AC/DC 85~260V(50Hz/60Hz)
Reset method	Automatic	1~20min (only for overcurrent)
Reset method	Manual	(Electrical reset)
Installation / Mounting method		Display can be installed separately, 35mm DIN rail / Screw installation
Tolerance	Current	±3%
	Time	±5%
	4~20mA output	±5%
Time setting	Startup delay	1~200sec
Time setting	Operation delay	1~60sec
Aux. contact	Composition	3-SPST(Power supply 1a1b, i nstantaneous operation 1a)
	Capacity	3A/250VAC Resistive Load
	Contact minimum load	100mA / 6VDC : (95-996, 97-98)
	Contact minimum load	10mA / 5VDC ( 07-08)
ZCT Input	External	200mA/100mV(Exclusive ZCT)
ZCT Input	Built-in	Support (Separate connection unnecessary
Service environment	Service temperature	-20℃ ~ 60℃
	Storage temperature	-30℃ ~ 70℃
	Relative humidity	Below 50% RH (Without condensation)
Insulation resistance		100MΩ/500VDC
Lightning impulse voltage		1.2X50us 5kV Prototype waveform supply
Fast transient		2kV/1Min
Power consumption		Below 2W