DSP-VIP-RTM-70Z7

Motor Protection Relay with DC500V Insulation resistance Measurement

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**NEP(New Excellent Product) approved by Government(NEP-MKE-2009-032)**
** Motor Stopping:Insulation Tester, Motor Working:Protection Relay**
*Panel Flush Mounting Type:Converter,Display meter,Communication Module
*Protection:Over/Under Current,Ground fault,Over Temp,Shock,Locked Rotor,Phase Loss,Reverse Phase
*Indication:A,GR,TEMP,Insulation resistance(Line-earth),working time,Number of ON-OFF/MC
*Measuring range for Insulation Resiatance:0.1MOhm ~ 500MOhm/500VDC
*Alarm before trip:65~100% of “OC”
*Additional Function:RS 422/485,232,,Shut down delay timer & Delay on-make timer
*Pre-maintenance:Able to preset alarm point/O,U curr.GF,Temp,Shock(Stall),Number of MC ON-OFF,MOTOR working time,
* Particulary Useful for process control and pre-maintenance as presetting various alarm factor

Information

Easy Handling

to realize convenient & various data input
- Display Meter
- Loader
- Note Book PC
Main/Sub/Cab Menu :three seperated menu according to usage and data input frequency
- Main menu :Data input frequency is rather higher
- Sub menu : ratherly common application for all kind of motor
- Cab menu(calibration menu):adjustable for indicating value within narrow range(+,- 12.7%)/this menu is appeared when “SET” key is pressed for 5 sec or more and disappeared right after pressing again
Back lit display:easy handling in dark space of the panel
Measurement and Indication for Insulation resistance during motor stop state
- How to check motor stop state:followed condition must be satisfied at same time
- - To keep close state of P1-P2 from Aux output(b)of Contactor
  - To keep close state of M1-M2 from state output(b) of MCCB
  - Any current greater than 0.2A is not sensed by converter
  - The state of Logic input #1 keeps low:available for LOP
- How to measure insulation resistance between line connected to motor and earth
- - Whenever the control power is powered on after powered off,the latest measured value is appeared,but if the latest value is smaller than preset value,a character of the appeared value will be flickered.
  - In case the control power is powered on,the order of display is like “latest measured value>>ti-n0(if Pt100 temperature sensor is not connected)>> Ec-ct(if ZCT is not connected)>>stnby, then the actual measurement with the times of preset number (“rE-nb” mode) is done after preset measurement interval time(“rECOd” mode) has elapsed
  - Preset for measurement interval:0.1min(6sec)~3000min/if scheduled masuring time is in the mid of motor operation,measuring action is neglected
  - The normal process is going on as showing “t1-nO” in case the temperature sensor is not connected,but iin case Ec-ct” is shown,the normal process can not going further,so operator need to confirm this fact.
  - In anytime,operator can command the measurement action by pressing “SET” key twice continuously during motor stop state, then VIP starts to measure the resistance after 5 sec without concerning with measuring interval time. This function will be available for starting motor again after long term pause.
  - If “Stnby” is appeared after preset interval time from motor stop state,then measuring action is executing after preset measurement interval time from a point of “Stnby” appearance,also while “stnby” is shown and motor working state,any command concerened with resistance measurement and motor protection is not available
  - Preset for measurement interval:0.1min(6 sec)~3000min from initial motor stop /if scheduled masuring time is in the mid of motor operation, measuring action is neglected
  - Measuring range:0.1MOhm~500MOhm
  - Allowable tolerence:R < = 1M:±0.05 M, 1M < R < = 50M:±5%, 50M < R < = 200M: ±10%, 200M < R < 500M:available range
- To indicate measured insulation resitance
- - The latest measured value among 8 events is indicated during motor stop
  - The rest of 7 events is checked by pressing “UP,”DN” key as shown the number of turned-on LED in round bar grapgh position
  - “None” is appeared if there is no more measurements under 8 events.
  - “Ir-Ps” is appeared in case the value greater than 500MOhm is measured, it means line state is normal/neverthless, need to check the disconnection of line to input “L-E ” and the openning between M1-M2
  - “Ir-0.0” is flickering in case the measured value is under 50 KOhm
- Execution not to start motor
- - In case the latest measured value is lower than preset value/measured value is flickeing/To start motor,enter into “IrAL” mode by pressing “SET” key,then preset “OFF” or lower level than the latest value
  - In case of openning state between P1-P2( Aux output “b” from Main contactor) /”OPEn” is flickering
- Indication according to openning for M1-M2(MCCB)
- - “Ir-Ps” is appeared after showing “Stnby” ,but Motor start is possible,so connect “b” output from MCCB into M1-M2 or make short state between M1-M2 to clear this indication
- Alarm for “Ir” through 07-08-10 is available in case “Ir” is preset in “Au-o” mode
To indicate a necessary information in every 3 sec
- Basic factor circulating indication:3 phase current,GR current/”OFF” must be set in “rota” mode
- Basic Factor + insulation resistance,temp(Pt),AWT(Accumulated working Time)/”ON” must be set in “rota” mode/Possible to fix one of circulated factor or to release:one touch for “CLR” key
- Possible to check presetting value during operation / “SET” & “MODE” key / Mode and value is shown alternatively / return to operating state without input for 10 sec or pressing “Mode” key / not possible to preset value
- To show load factor(actual/setting)/65%~100%,Round type
Alarm before trip : Alarm to OC ,65%~100%
To secure a safety: Password input for setting a data
ON-OFF switch:to save wiring and labor inside panel
Convenient installation:65 Phi circle or rectangular hole/Display Meter
To indicate tripped number of main contactor:contributing to check a replacing term and effective maintenance
To call initialized factory setting value:pressing test button before power-on and keeping a press for 3 sec after power-on.
To keep a stable operation under frequency variation of inverter:10 Hz~400Hz

Multi-complexed Function

Multi-complexed protection relay based on Current and temperature
To indicate RMS value/Current:RMS chip adopted in every input/to contribute to check an exact condition of motor
Provides actual meter function:current,temperature,insulation tester
- Current Meter:High preceision
- Temperature Meter:0 ~150 degree C
- Insulation resitance measurement:0.1MOhm~500MOhm
- Auto range:to indicate decimal point in conjunction with “K/Test” LED in Loader and DM
To cover a wide current range
- 70 Type : 0.2 ~70A/ 0.2A~6A with an external CT(“5t” must be selected in “cto”mode)
- With external CT:0.5A ~ 3600A
To be acceptable for various rating of ZCT:200/1.5mA or 200/100mV,selectable in DIP SW
Alarm to disconnection with ZCT:In case ZCT is not connected with Z1,Z2 of the converter after the control power is on before starting,Starting is not possible/ “Off” in “Ec” mode to clear alarm.
Temperature arising protection of case,winding of motor:sensed by PT100
- Not posible to start under keeping over temperature than preset value
- if PT100 is not connected before starting, alarm message is coming out and not allow to start.
- Above all condition can be clear as making temperature mode disable.
Various and multiple output of Main and Aux internal relay
Main / 1a-1b(05-06,M-C)
AUX : 1C X 1 / 07-08-10 :acts same as main trip or one of ShocEc/Uc/Shoc/AL/tEP/Ir/Ec-tE-AL selected in “Au-o” mode
To memoize latest number of 8 tripped cause:to contribute analysing trouble cause and keeping a data after power-off
Main contactor Auto Close:in case a line power is “ON” again within a preset time(SDDT) after a line power is “OFF” during a normal operation,main contactor is closed automatically after another preset time(DOMT)
Shut Down delay Time:1~5 sec/Adjustable
Delay On make Time:0(Instant)~25sec/Adjustable 5 sec unit
Expression in mode:eg/2-3:in case power is “on” within 2 sec after power-off,motor restarts after 15 sec(3 is matched with 15 sec) from instant of power-on.
Self-diagonostics:main trip output is tripped after counting down o-time of definite T-I or a time of 550% to “OC” Inverse T-I

Remote Control through RS 485/422 Digital Communication

Basically 4~20mA Output:max curremnt of 3 phase/VIP-RTM Type
To realize effective system for digital communication:posible to combine a module simply if neccessary
To response for RS 485/422, Modbus
To select one of RS485 and 422:Simply selectable in DIP SW inside communication module
To put easily termination resistance in extreme end unit:Simply selectable in DIP SW inside communication module
To monitor and input a data in the field:Note PC converter<>in DSP

Function List

Function		DSP-VIP-RTL		DSP-VIP-RTM		remark
Function		Converter + Loader	Comm. Module	Converter +D. Meter	Comm. Module	remark
Protection	Over Current	○		○
	Under Current	○		○
	Phase Loss by load current	○		○
	Reverse phase by load current	○		○
	Current Unbalance	○		○
	Locked Rotor	○		○
	Shock/Stall	○		○
	Ground fault	○		○
	Over temperature	○		○
Indication	Load current	○		○
	Insulation resistance/Line-Earth	○		○
	Ground Fault Current	○		○
	Accumulated working time	○		○
	Load factor/bar graph	○		○
Auxiliary	Alarm before trip	○		○
	ON-OFF SW	×		○
	Main Contactor Auto Close SDDR/DOMT	○		○
Communication	4~20mA	○	×	○	×
	RS 485/422-Modbus	×	○	×	○
	Interface with Note PC	○	×	○	×

Specification

Technical Specification

Division		Description

Current setting range	03 Type	0.2 ~ 3A
	10 Type	0.5 ~ 15A
	70 Type	10 ~ 70A
	With external CT	refer Table
Ground fault setting range	Zero phase current	10mA~10A
Time setting	Starting delay time(dt)	OFF, 0.1~300 sec/def

	over current trip delay time(ot)	0.1~60sec/def, 5~30class/Inv :refer T-I curve
	under current trip delay time(ut)	0.1~30sec/def
	Shock/Stall trip delay time(st)	0.1~3sec/def
	ground fault starting delay time(Edt)	OFF, 0.1~10sec/def
	ground fault trip delay time(Eot)	* 0.1~30sec/def * 1~10 Class/Inv:refer T-I curve
	main contactor auto close: time/Instant or time delay starting	– OFF : Disable – SDDT:1~5 sec/DOMT:0(instant)-25 sec,adjustable
Allowable tolerance
	Current	C <= 2A : 0.1A, C > 2A : ±5%
	Time	t <= 2 sec : ±0.1 sec, t > 2 sec : ±5%
	Insulance resistance	+,-10%/500VDC,0.1MOhm~500MOhm


Control power		AC 85V~AC260V,50/60Hz (DC120V~DC370V) DC24V
Trip output	05-06,C-M	1a-1b(SPDT), 3A/Resistive
	Aux	1C(1-SPDT),3A/Resistive (Possible to transfer into 2nd alarm/lower alarm to “OC”)
	GR	1C(1-SPDT),3A/Resistive(In “Au-o” mode,AUX output must be set “GR”
Application Environment	Temperature	Operating: -25℃ ~ + 70℃
	Temperature	Storage : -40℃ ~ + 80℃
	Relative humidity	30 ~ 85%, non-condensing
Current tollerance against changeable frequency in Inverter		Avg,+,-3%,10㎐ ~ 400㎐
Max Conductor Size		25sq
Insulation Resistence		Circuit-case,10Mohm or more, 500VDC
High Voltage Insulation Test		Circuit-Case: AC 2000V, 60㎐, 1 min Contact-Contact: AC 1000V, 60㎐, 1 min
Logic Input		220VAC:150∼260VAC,50/60Hz( 220∼370VDC)/Standard110VAC:75∼150VAC,50/60Hz(110∼220VDC)/Optional
Screw torque		Max 0.6 N.m
Frame:IEC/EN 60695-2-12		650℃
Shock:IEC/EN 60068-2-27		1/2 sine wave, 15g / 11ms
Vibration:IEC/EN 60068-2-6		5~300㎐, 4 g with Plate,1 g with rail
trip Output:IEC/EN 60947-1		690V
Dielectric Strength:IEC/EN 60947-		AC 100~240V,input,output
4-1		Contact : 4㎸, Air:8㎸
Electrostatic Discharge: IEC/EN 61000-4-2		Air : Level 3, 8㎸ Contact: Level 3, 6㎸
Radiated Electromagnetic Field Disturbance : IEC/EN 61000-4-3		Level 3, 10V/m
Electric Fast Transient Burst : IEC/EN 61000-4-4		Power,relay output: Level 4, 4㎸ others : Level 3, 2㎸
Surge :IEC/EN 61000-4-5		Relay output: 1.2×50uS, 2㎸(0。, 90。, 180。, 270。)
Digital Communication	Physical feature	2 wire RS 485/4 wire RS 422
	Address	1~255
	Speed	2.4 kbps ~ 38.4 kbps
	wiring connection	* Input/Out : RJ 45 and/or Screw Terminal * RJ45 and Scrw Terminal(5P) is commoned phisically
	Terminal resistance	* DIP S/W selection/200Ω * Actually:220 +220→440//390 =>206 Ohm
	cable	Sheathed cable, 2 Pair/4 Pair
Current Loop Communication		maximum value in 3 phase current/RTM type
Consuming Power		10W max

Protection

Item	Description	remarks
Over Current	Trip is done if the current greater than presetting value is kept over preset O-time
Under Current	Trip is done if the load current smaller than presetting value is kept over preset u-time
Unbalance	* trip is done if the presetting current unbalance rate is kept over 8 sec * rate=[(max. curr.- min. curr.)/max. curr.] * 100 [100%]
Locked Rotor	trip is done if 300% current greater than preset “oc” is kept for d-time plus 0.1 sec
Shock/Stall	* trip is done if a current greater than presetting value during working is happened for presetting time * Presetting range:180% ~ 700% Available for 10 type and 70 typetype,but upper limit for 70 type is based on [(240/OC setting value)100][%]} ,if greater than 700%, assumed 700%
Ground Fault	trip is done if a current greater than presetting zero phase current is kept for Eot(earth operating time)	DIP SW Selection/ZCT rating:200㎃/1.5㎃ or 200㎃/100mV
Over Temperature	P trip is done if temperature sensed by PT 100 greater than presetting value is kept over 8 sec
Phase Loss by load current	* This protection is identified by load current within 0.1 sec * “OFF” is posible in the mode	* If phase loss is happened ,auto reset is not possible,but manual reset
Reverse Phase by load current	This protection is identified by load current within 0.5 sec “OFF” is possible in the mode	* If reverse phase is happened ,auto reset is not possible,but manual res
Main contactor Auto Close	In case a line power is “on” again within presetting time(SDDT) after a line power is “off”,main contactor is closed automatically after another presetting time(DOMT) SDDT:1~5 sec/DOMT:0(instant)~25sec/adjustable in 5 sec unit	eg.:if 2-3 is presetted,in case power is “on” within 2 sec after power-off,motor starts after 15 sec(3 is matched with 15 sec)