LS ELECTRIC
LS ELECTRIC
Description
DMPi
Intelligent Digital Motor Protection Relay
• 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
ใIntegrated Digital Motor Protection Relay based on MCU(Microprocessor Control Unit)
ใApplicable to invertor circuits
ใA function to store the cause(s) of failure/fault exists
ใUp to five motor failure events may be saved in the system so that failure history may be easily identified
ใCommunication function
ใA wide range of reset functions
ใDate information display
ใPassword setting
ใTotal operating time and operating time setting
ใTerminal/Penetrated types are shared for application in various installation environments
Reliability
ใThermal inverse time, inverse time, and definite time modes
ใThree-phase digital ampere-meter
ใVarious protection elements and additional functions
ใHigh reliability
ใInverse 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) |
| 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 |
| 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) | |
| 10mA / 5VDC ( 07-08) | ||
| ZCT Input | External | 200mA/100mV(Exclusive ZCT) |
| Built-in | Support (Separate connection unnecessary | |
| Service environment | Service temperature | -20โ ~ 60โ |
| Storage temperature | -30โ ~ 70โ | |
| 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 | |
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