PRODUCTS
- 1、Overview
ARD series intelligent motor protector (hereinafter referred to as protector) can perform various conditions such as start timeout, overload, phase failure, unbalance, underload, ground/leakage, blockage, short circuit and external fault during motor operation. Protection, and SOE fault event recording function, convenient for on-site maintenance personnel to find the cause of the fault. Suitable for coal, petrochemical, smelting, electric power, ships, and civil construction. The protector has RS485 remote communication interface, DC 4 ~ 20mA analog output, and PLC, PC and other control machines form a network system. Remote monitoring of motor operation.
2、Model Description
The main switch quantity is 4DI, 4DO, and the main switch type is shown in Table 11:
Table 11 Body switch type
Body switch quantity classification Code DI is dry contact, control DO working power is AC220V K1 DI is wet contact, DC110V input, control DO working power is AC220V K2 DI is wet contact, DC220V input, control DO working power is AC220V K3 DI is wet contact, AC220V input, control DO working power is AC220V K4
Measurement module: The measurement module includes two types of current measurement modules and current/voltage measurement modules.The current measurement module and current/voltage measurement module are classified in Table 12. The correspondence between motor current and ARD3T current measurement module is shown in Table 13.
Table 12 Measurement module classification
Motor voltage（V） Protector rated current Current setting range（A） Current measurement module model No voltage measurement function 1.6 0.40-2.00 A1.6 6.3 1.6-6.3 A6.3 25 6.3-25 A25 100 25-100 A100 250 63-250 A250 800 250-800 A800 AC 380V/660V 1.6 0.40-2.00 UA1.6 6.3 1.6-6.3 UA6.3 25 6.3-25 UA25 100 25-100 UA100 250 63-250 UA250 800 250-800 UA800 Note: The 660V voltage function requires special labeling. The default is 380V.
Table 13 Correspondence between motor current and measurement module
Motor rated power (kW) Motor ratingCurrent (A) ARD3T current measurement module Setting current range (A) Motor rated power (kW) Motor ratingCurrent (A) ARD3T current measurement module Setting current range (A) 0.12 0.42 A1.6 0.40-2.0 30 57 A 100 25-100 0.37 1 A 1.6 0.40-2.0 37 69 A 100 25-100 0.55 1.5 A 1.6 0.40-2.0 45 81 A 100 25-100 0.75 2 A 6.3 1.6-6.3 55 100 A 250 63-250 1.1 2.5 A 6.3 1.6-6.3 75 135 A 250 63-250 2.2 5 A 6.3 1.6-6.3 90 165 A 250 63-250 3 6.5 A 25 6.3-25 110 200 A 250 63-250 5.5 11 A 25 6.3-25 132 240 A 250 63-250 7.5 14.8 A 25 6.3-25 160 285 A 800 250-800 11 21 A 25 6.3-25 200 352 A 800 250-800 15 28.5 A 100 25-100 220 388 A 800 250-800 18.5 35 A 100 25-100 250 437 A 800 250-800 22 42 A 100 25-100 / / / / If the voltage function is required, change the corresponding model of “ARD3T Current Measurement Module” in Table 13 to “UAXX”. For example, the motor needs 5.5kW, with voltage measurement function. Query the corresponding measurement module according to Table 4 as “A 25”. ", directly replaced by "UA25".
From now on, it is an additional function. If you need the following additional functions, select the corresponding function to fill in the model additional function.
Switching module: The switching module classification is shown in Table 14:
Table 14 Switch Module
Switch module classification Code DI is dry contact, control DO working power is AC220V K 4 3（4DI、3DO） DI is wet contact, DC110V input, control DO working power is AC220V K 4 3-DC110 DI is wet contact, DC220V input, control DO working power is AC220V K 4 3-DC220 DI is wet contact, AC220V input, control DO working power is AC220V K 4 3-AC220 The temperature module is shown in Table 15:
Table 15 temperature moduleTemperature module Code Connect a variety of temperature sensors（PT100、PT1000、Cu50、PTC、NTC） T Analog modules are shown in Table 16.：
Table 16 Analog module
Analog module Code 2 way 4~20mA output M2 2 way 4 ~ 20mA input + 2 way 4 ~ 20mA output 2M2 2 way 4~20mA input 2M The display module is shown in Table 17:
Table 17 Display module
Display module Code Split liquid crystal display, module size is 98×60, opening 92×55 (mm) 60L The communication module is shown in Table 18:
Table 18 Communication module
Communication module Code Double MODBUS-RTU C The leakage current function and the type of leakage transformer are shown in Table 19:
Table 19 Leakage function
Leakage current type Optional leakage transformer type Code 50mA～1A AKH-0.66/L-35 1A/2mA L1 AKH-0.66/L-70 1A/2mA L2 AKH-0.66/L-105 1A/2mA L3 3A～30A AKH-0.66/L-70 30A/10mA L4 AKH-0.66/L-105 30A/10mA L5 Anti-shake function: SU (including voltage function).
tE time protection: tE.
Power function: Ep.
Note:
1. The main body and measurement module are mandatory modules.
2. If the main switch type is not specified, the default is “K1” DI is the dry contact, and the control DO working power is AC220V.
3. The switch quantity, temperature, analog quantity, display and communication module are optional modules, and only one type can be selected for each type of module.
4. The length of the standard cable between the modules is 25mm; the length of the standard display module cable is 1m; the length of the standard measurement module cable is 1m.
5. The length of the display module length can be selected: 1m, 2m, 3m. When the standard length 1m does not meet the requirements for use, 2m and 3m can be selected.
6. After the ARD3T is connected through the connecting line, the total length from the first module to the last module does not exceed 5m, otherwise the product cannot be guaranteed to work normally.
7. After the voltage function is added, the line voltage, active power, power factor, apparent power, and active energy can be measured. Overvoltage, undervoltage, phase sequence, and underpower protection can be achieved.
8. After adding the analog module, it can realize 4~20mA input measurement and 4~20mA transmission output. 4 to 20 mA input protection is possible. Transmission output types include: A, B, C phase current; AB, BC, CA line voltage; frequency; active power; main body PTC; temperature module three-way temperature input; analog module two-way analog input.
9. After adding the temperature module, 3 channels of temperature measurement can be realized. The available sensor types are PT100, PT1000, Cu50, PTC, NTC. The 3-way sensors can be of the same type or different types. When the sensor type is: PT100, PT1000, Cu50, the display value and protection value unit are °C; when the sensor type is: PTC, NTC, the display value and protection value unit are Ω.
10. The dual MODBUS is realized by the main body with one MODBUS and the communication module with one MODBUS.
When the leakage function is selected, the type of leakage and the corresponding type of transformer should be marked. L35, L70, L105 means that the perforations of the transformer are 35mm, 70mm and 105mm respectively.
11. When the anti-shake function is selected, the voltage function is standard, and it is not necessary to select the voltage function.
3、Technical indicators
l ARD2(L)、ARD2F、ARD3 Main Specifications
Technical Parameters Technical indicators ARD2(L) ARD2F ARD3 Auxiliary power Voltage AC85V～265V/DC100V～350V Power consumption ≤7VA ≤15VA Rated operating voltage AC380V/AC660V，50Hz/60Hz Rated operating current 1A（0.1～999.9） 5A（0.1～999.9） 1.6A（0.4A～1.6A） 6.3A（1.6A～6.3A） 25A（6.3A～25A） 100A（25A～100A） 250A（63A～250A） 800A（250A～800A） Relay output contact capacity AC250V, 3A；DC30V, 3A AC250V, 6A Switch input 2 9 Surroundings Operating temperature：-10ºC～55ºC Storage temperature：-20ºC～65ºC Relative humidity：5﹪～95﹪不结露 Altitude：≤ 2000m Pollution level 3 Protection level IP20 Main body IP20, display unit IP54(when installed in the cabinet panel) Installation category Level III l ARD3T Main Specifications
Technical Parameters Technical indicators Auxiliary power AC/DC 110 / 220V，power consumption≤15VA Rated operating voltage of the motor AC 380V / 660V，50Hz / 60Hz Motor rated operating current 1.6（0.40A-2.00A） Measuring with the measurement module 6.3（1.6A-6.3A） 25（6.3A-25A） 100（25A-100A） 250（63A-250A） Use external current transformer + measurement module 800（250A-800A） Leakage 50mA-1A Using measurement module + leakage current transformer 3A-30A Relay output contact capacity Resistive load AC250V、6A；DC24V、6A Inductive load AC250V、2A；DC24V、2A Main body switch input and output 4DI、4DO，DI can be a dry contact or a wet contact Switch module 4DI、3DO，DI can be a dry contact or a wet contact Temperature module External sensor type：PT100、PT1000、Cu50、PTC、NTCNumber of sensor channels: 3 channelsSensor corresponding measurement range：PT100/PT1000：-50°C～+500°CCu50：-50°C～+150°CPTC/NTC：100Ω～30kΩ Analog module Can be realized: 2 channels 4 ~ 20mA input measurement, 2 channels 4 ~ 20mA transmission output4~20mA input measurement accuracy ±0.5%4～20mA output maximum load capacity is ≤500Ω Subject communication RS485：Modbus-RTU Communication module RS485：Double Modbus-RTU、Profibus Surroundings Operating temperature -10ºC～55ºC Storage temperature -25ºC～65ºC Relative humidity ≤95﹪ No condensation, no corrosive gases altitude ≤2000m Pollution level Level 3 Protection level Main body IP20, split display module IP44 (installed on the cabinet) Installation category Level III 4、Product Features
Low voltage motor protection quick selection table
Description: “√” means standard“■” means optional
ModelFunction ARD2 ARD2L ARD2F ARD3 ARD3T Application Low voltage 0.4kv-1.14kv motor protection Protective function Start timeout √ √ √ √ √ overload √ √ √ √ √ Underload √ √ √ √ √ Short circuit √ √ √ √ √ Blocking √ √ √ √ √ Stall √ √ √ √ √ unbalanced √ √ √ √ √ Feedback timeout √ External fault ■ ■ ■ √ √ Module structure failure √ Internal fault √ Overpressure ■ ■ ■ Undervoltage ■ ■ ■ Phase failure √ √ √ √ √ Phase sequence ■ ■ ■ Over power ■ ■ Underpower ■ ■ ■ tE time ■ ■ ■ Body temperature protection ■ ■ √ Main body temperature sensor failure √ Module temperature protection ■ Module temperature sensor failure ■ Call the police ■ ■ ■ √ √ Loss of pressure (anti-shake) ■ ■ ■ 4-20mA input protection ■ Residual current(choose one) Ground √ √ √ √ √ Leakage ■ ■ ■ ■ ■ Communication function Modbus_RTU ■ ■ ■ ■ √ Double Modbus_RTU ■ ■ Switch input 2 ■ ■ 6 8 4-way standard4-way optional 9 ■ √ Relay output 4 4-way standard4-way optional 5 4-way standard4-way optional √ 6 7 4-way standard4-way optional Start control ■ √ √ 4-20mA analog output ■ ■ ■ ■ ■ Record 8 records ■ ■ √ 20 records ■ ■ Operational information record √ √ √ Logic function Timer √ counter √ Truth table √ Parameter measurement Three-phase current √ √ √ √ √ Leakage current ■ ■ ■ Three-phase voltage ■ ■ ■ Power, power factor ■ ■ ■ Frequency √ √ √ √ √ Electric energy ■ ■ PTC/NTC ■ ■ √ 4-20mA input ■ Temperature measurement module ■ Liquid level Interface display LED digital tube display √ LCD liquid crystal display √ ■ ■ ■
