Description of Product Type
Product Features
- Choose parameters through simple programming based on load type.
- Select from three sets of start-up parameters, making it convenient for a single motor starter to handle motor loads with varied power requirements.
- Closed-loop control is achieved by initiating the motor feedback voltage to ensure a successful motor start-up under all working conditions and varying loads.
- Solid state soft start with three start-up options: voltage-slope start provides maximum output torque; constant-current soft start limits start-up current optimally; direct-current soft start initiates the soft starter directly.
- Programmable delayed start-up and interlock control options.
- No phase-sequence requirements for the input power source.
- Start-up and stop times can be digitally modified.
- Multi-functional protection features: over-current, three-phase current imbalance, overheating, phase loss, and motor overload protection.
- Dynamic fault memory function facilitates easy fault identification.
- Capable of online monitoring for maximum start-up and operational currents.
- Overall dynamic starter control and monitoring through the fieldbus, with easy wiring.
Typical Application
JJR 8000 Low Voltage Solid State Soft Start
The JJR8000 Series Intelligent Soft Starter delivers versatile motor control solutions, expertly engineered for demanding applications across key industrial sectors. Its robust design and intelligent features make it ideally suited for:
1. Pump
Utilize the soft stop function to mitigate the effects of water hammer, thereby reducing system maintenance costs.
2. Ball mill
Utilize the voltage ramp startup to reduce gear torque friction, thereby saving both cost and time.
3. Fan
Reduce belt friction and mechanical wear to save on maintenance costs.
4. Compressor
Use limited current to achieve a smooth start-up, reduce motor heat, and prolong device life.
5. Conveyor
Make use of the soft start to realize smooth and gradual startup process in order to avoid product move and liquid overflow.
Technical Features
- Main loop working voltage: AC 380V/690V/1140V (+10% to -25%)
- Main loop working current: 13A to 1500A
- Main loop frequency: 50Hz/60Hz (±2%)
- Control-loop power supply: AC/DC 220V ± 15% (0.5A)
- Soft-start rise time: 1 to 120 seconds
- Soft-stop time: 0 to 100 seconds
- Impact time: 0.1 to 0.3 seconds
- Impact voltage: 50% to 100%
- Current limiting times: 1.5 to 5.0 times
- Initial voltage: 25% to 80% Ue
- Cooling method: Natural cooling
- Communication method: RS485 serial communication (with options for Modbus-RTU and Profibus)
Usage and Environment Standard
|
Protection level |
IP00 |
|
Vibration resistance |
Comply with IEC 68-2-6: 2 Hz to 13Hz is 1.5mm peak value; 13 Hz to 200Hz is 1gn |
|
Impact resistance |
Comply with IEC 68-2-27: 15g,11ms |
|
Maximum ambient pollution class |
Class 3, comply with IEC 947-4-2 |
|
Maximum relative humidity |
93% no condensing or drip. Comply with IEC 68-2-3 |
|
Ambient temperature |
Storage:-25℃ to +70℃ Running : 10℃ to +40℃ without derating. Maximum +60℃,when temperature above 40℃,the current will reduce by 2%for temperature rising per 1℃. |
|
Maximum operation altitude |
2000m without capacity reduction ( above 2000m, current will reduce by 0.5% for every 100 meters increase altitude) |
|
Operation position |
Vertical position, A range of ± 10° |
Working Principal
As the control center of the JJR 8000 Solid State Soft Start, the DSP microprocessor starts and protects the motor through the control system. The DSP microprocessor triggers the phases and controls the SCR to reduce the motor's voltage and current, gradually increasing the motor torque until full-speed operation. This start-up method reduces the motor's inrush current and impacts, minimizing strain on the power grid, the motor itself, and the mechanical components connected to the load. This process helps prolong the device's service life and reduce breakdowns.
The JJR8000 solid-state soft starter offers three start-up modes: voltage mode, current-limiting mode, and direct current mode.
Motor and system protection functions:
JJR8000 series soft starter provides many kinds of protections upon motor and soft starter. The main functions areas below:
Protection against three-phase input phase failure: The system will not start unless all three phases are present and the load is supplied with power from the main loop.
Overheat protection: Monitors the temperature. Frequent starts can cause the SCR's temperature to exceed 80°C.
Protection against excessive start time: A start time that is too long is harmful to both the motor and the soft starter. Therefore, the default start time limit is set to 30 seconds. Users can adjust this time between 10 and 300 seconds based on the specific load requirements.
Protection against excessive current (timing limit): If the current exceeds 5 to 8 times the rated value (adjustable), the output will be cut off within 20ms to 200ms (adjustable).
Protection against inverse overload: There are 4 grade curves for stall protection.
Light load alarm, trip protection, and frequency error alarm.
Optional function for 'prohibiting start': The motor will only be permitted to restart once its temperature reaches the desired value.
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JJR8000 Low Voltage Soft Starter Selection Table |
|||||
|
380/500V(-15%~+10%)50/60Hz(±2%) |
Applicable motor rated power |
||||
|
Structure |
Product |
Rated Current |
Rated power(KW) |
||
|
380V |
690V |
1140V |
|||
|
M0 |
JJR8000-13-①-V2-② |
13 |
5.5 |
10 |
|
|
JJR8000-17-①-V2-② |
17 |
7.5 |
13 |
||
|
JJR8000-24-①-V2-② |
24 |
11 |
18.5 |
||
|
JJR8000-32-①-V2-② |
32 |
15 |
30 |
||
|
JJR8000-38-①-V2-② |
38 |
18.5 |
37 |
||
|
JJR8000-45-①-V2-② |
45 |
22 |
45 |
||
|
JJR8000-60-①-V2-② |
60 |
30 |
55 |
||
|
JJR8000-72-①-V2-② |
72 |
37 |
15 |
||
|
JJR8000-105-①-V2-② |
105 |
45 |
90 |
||
|
M1 |
JJR8000-142-①-V2-② |
142 |
55 |
110 |
|
|
JJR8000-170-①-V2-② |
145 |
75 |
130 |
220 |
|
|
JJR8000-220-①-V2-② |
220 |
90 |
160 |
270 |
|
|
JJR8000-250-①-V2-② |
250 |
115 |
200 |
350 |
|
|
JJR8000-290-①-V2-② |
290 |
132 |
250 |
400 |
|
|
M2 |
JJR8000-290-①-V2-② |
290 |
160 |
315 |
|
|
JJR8000-360-①-V2-② |
360 |
200 |
350 |
600 |
|
|
JJR8000-450-①-V2-② |
450 |
250 |
450 |
||
|
JJR8000-560-①-V2-② |
560 |
320 |
600 |
||
|
JJR8000-700-①-V2-② |
700 |
370 |
670 |
||
|
JJR8000-450-①-V2-② |
450 |
700 |
|||
|
JJR8000-560-①-V2-② |
560 |
900 |
|||
|
JJR8000-700-①-V2-② |
700 |
1100 |
|||
|
M3 |
JJR8000-800-①-V2-② |
800 |
400 |
700 |
1250 |
|
JJR8000-1000-①-V2-② |
1000 |
500 |
870 |
1650 |
|
|
JJR8000-1200-①-V2-② |
1200 |
600 |
1100 |
1850 |
|
|
JJR8000-1400-①-V2-② |
1400 |
700 |
1250 |
||
|
JJR8000-1500-①-V2-② |
1500 |
800 |
1450 |
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