Protection

Function

Basic Functions

Standard

Match

Remark

overvoltage protection

√

fuction after alarmed 3 seconds

undervoltage protection

√

fuction after alarmed 3 seconds（“0”stop fuction）

overload protection

√

current value&function time settable

underload protection

√

locked-rotor protection

√

multiples of locked-rotor settable

open-phase protection

√

fuction after alarmed 3 seconds

leakage protection

√

set the value of the leakage current

timeout protection

√

start time delay setting according to the equipment need

reversal protection

√

function by automatic judgement

feeder protection

√

electric shock protection

√

Automatic recovery within three seconds

external fault protection

√

function by automatic judgement

electric delay protection

√

delay time settable

Control

Function

direct start-up

√

select wiring according to the start mode,

set the change-over time and start mode

star triangulation start

√

direct bypass start

√

forward and reverse start

√

step-down start

√

Fault Reset

manual reset

√

time automatic reset or “0” shutoff to  manual reset are selectable

automatic reset

√

Control Authority

front-panel control

√

set the control and protection rights

remote terminal control

√

fieldbus control

√

Measure Function

three-phase current

√

monitor module

three-phase voltage

√

leakage current

√

rate power

√

power factor  apparent power

√

elctricity

√

Communication Function

RS485interfaces/ Mdobus-RTU

√

protocol

Analog Output

One channel DC4-20mA

√

internal DC24V power supply

Switch Output

6-channel optoelectronic

barrier input,function editable

√

Control Output

6-channel relay output,

function editable

√

rivet capacity 5A

Set Reminding

full screen English

√

LCD display

Fault Query

last ten fault query

√

Time Query

Accumulated or current time function time query

√

Parameter Query

function, set-up, fault message electric power, rate, apparent power

√

Work power

AC/DC 85~265V  50Hz

Power supply circuit voltage

≤AC1160

Control the relay output

passive contact  5A

Install mode

standard 35mm lead rail installation or screw fix

Field of application

three-phase power supply equipment

Overvoltage protection

set the voltage value

110~465 V settable

Undervoltage protection

set the voltage value

0~380V settable

Overload protection

current setting

A settable within standard current

function time

1~255S settable

Underload protection

current setting

A settable within standard current

function time

0~255S settable

Open-phase protection

percentage setting

1~100% settable

Leakage protection

leakage current value setting

50~5000mA settable

function controlled by programming

Locked-rotor protection

multiples setting

1~9 multiples settable

Timeout protection

start delay time setting

1~255S settable

Fault reset

manual reset

be“0”

automatic reset

0~255S settable

20mA corresponding current

set 20mA corresponding current value output

Communication address

The device communication address

1~255 machine settable

Start type

select start type

direct startup, star triangle startup,forward and reverse startup, direct bypass,forward and reverse bypass startup,step-down startup settable

Relay transfer time

transfer time

1~250S settable

Programmable relay style

startup delay close、leakage delay close、fault shutdown close、power on delay close、alarming delay close setable、low power factor alarming closed

Programmable relay output time

output delay time

1~250S settable

Overload control protection

when the motor is overload,the over current will be calculated according to the motor heat capacity tracking.Fully considered the motor rotor and stator’s temperature rise and the influence to the motor heating because of the three-phase unbalance.When the current reached the control protection value,the device will do the alarming and notice the shutdown delay time.

Underload protection

when any one of the three-phase current is lower than the set underload value,the device will do the alarming and notice the shutdown delay time.

Locked-rotor protection

when the current value reached the set current multiples,the protection device will do the alarming and notice the shutdown delay time.

Three-phase current unbalance protection

when the ratio of the minimum phase or the maximum line current reaches or exceeds the set value, the protection device will do the alarming and notice the shutdown delay time.

Open-phase protection

It will be judged as open-phase fault if any one of the three-phase current’s ratio is not bigger than the unbalanced angle value, the device will do the alarming and notice the shutdown delay time.

Overvoltage protection

The protection device and the measure device monitor the three-phase voltage value, the device will do the alarming and notice the shutdown delay time if the equipment’s largest voltage is higher than the set value.

Undervoltage protection

The protection device and the measure device monitor the three-phase voltage value, the device will do the alarming and notice the shutdown delay time if the equipment’s smallest voltage is lower than the set value.

Leakage (earth)protection

Judge the leakage fault by using the zero sequence current transformer to measure the protective conductor（PE）or （PEN）’s short-circuit leakage current value.When the short-circuit leakage current value is bigger than the set leakage value, the device will do the alarming and notice the shutdown delay time.

Electric shock protection

The protection device monitors the equipment’s voltage continuously, when the system voltage recovered after the moment dropped,the motor can start again.

Timeout protection

The protection device inspects the start-up current delay time,when the equipment can bot be started up within the start-up delay time,and the three –phase current is 1.2 time bigger than set current,the timeout protection will function and the power will turn off.

Reversal protection

When the protection device monitored the three-phase voltage sequence is not correct,the equipment can not start-up.

External fault protection

When the device monitored the external switching value input signal is different from the device’s set switching value input signal,the device can not be started up.