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SHR2DN Heavy Load Soft Starter - Advanced Intelligent Motor Control from China Suppliers and Factory
Product Profile
SHR2DN is a new intelligent motor soft starter, SHR2DN with the most advanced digital processor which can adjust voltage and limit the electric current. The unique intelligent electronic circuit offers perfect control and protective function: Start linearly with higher speed, starting and stopping control of the pump preset run at a low speed (rotating and overturning adjustment in short time of electro-controlling type). Presetable dual start-stop parameter switch freely, can monitor the load state and realize automatically run with energy-saving or light load mode. The protective function of electrical machinery insulating testing, and the protection of short circuit, phase loss and the electronic RS485 with communication interface use modbus/profibus protocol that generally realize the long range control and monitoring. Can be extensively used in textile industry, metallurgy industry, petrochemical industry, water treatment, shipping industry, medicine, food processing industry, mine industry and mechanical equipment industry etc.
Function
- Multinational language supported, LCD display, set up the parameter in button type.
- RS485 with communication interface modbus/profibus protocol.
- Can programme set the signal relay.
- Super strong perfect control and protective function.
- Can be run online continuously without bypass. High reliability.
Parameters
| 230-690V Motor Power | ||||||||
|---|---|---|---|---|---|---|---|---|
| Motor Power (KW) | Size and Type of softstarter | |||||||
| 230V | 400V | 500V | 690V | Model | Main voltage | Control voltage | Control inputs | Functions Options |
| 4 | 7.5 | 11 | 15 | SHR2DN17 | -x | -x | -x | -× + X… |
| 7.5 | 15 | 18.5 | 25 | SHR2DN31 | -x | -x | -x | -× + ×… |
| 15 | 22 | 25 | 37 | SHR2DN44 | -x | -x | -x | -x + x… |
| 18.5 | 30 | 37 | 55 | SHR2DN58 | -x | -x | -x | -× + ×… |
| 22 | 37 | 45 | 59 | SHR2DN72 | -x | -x | -x | -x + x… |
| 25 | 45 | 55 | 75 | SHR2DN85 | -x | -x | -x | -× + ×… |
| 30 | 55 | 75 | 90 | SHR2DN105 | -x | -x | -x | -× + ×… |
| 37 | 75 | 90 | 132 | SHR2DN145 | -x | -x | -x | -x + x… |
| 45 | 90 | 110 | 160 | SHR2DN170 | -x | -x | -x | -× + ×… |
| 55 | 110 | 132 | 200 | SHR2DN210 | -x | -x | -x | -×+ ×… |
| 75 | 132 | 160 | 220 | SHR2DN250 | -x | -x | -x | -X + X… |
| 90 | 160 | 200 | 257 | SHR2DN310 | -x | -x | -x | -× + ×… |
| 110 | 200 | 250 | 355 | SHR2DN390 | -x | -x | -x | -X + X… |
| 132 | 250 | 315 | 450 | SHR2DN460 | -x | -x | -x | -× + ×… |
| 160 | 315 | 400 | 560 | SHR2DN580 | -x | -x | -x | -×+×… |
| 200 | 400 | 500 | 710 | SHR2DN720 | -x | -x | -x | -× + ×… |
| 250 | 450 | 560 | 800 | SHR2DN820 | -x | -x | -x | -x + x… |
| 280 | 500 | 630 | 850 | SHR2DN950 | -x | -x | -x | -X + X… |
Purchasing Guide
For normal duty applications: We recommend the same rated power HPS2DN softstarters. As pump compress or elevator, escalator conveyor belt (short).
For heavy duty applications: We recommend one higher level HPS2DN soft starters. As centrifugal, fan, mill, mixer conveyor belt (long).
Technical Specifications
| General Information | |
|---|---|
| Supply voltage | Line to line 230V-690V (to be specified) ±10% |
| Frequency | 50/60Hz ±4Hz (dual frequency) |
| Control Supply | 110-120V or 220-240V (to be specified) |
| Control Inputs and Outputs | 110-120V or 220-240V (to be specified) |
| Load | 3 phase, 3 wire, squirrel cage induction motor |
| Operating temperature | 0℃ to 50℃ |
| Storage temperature | -20℃ to 70℃ |
| Maximum starting time | 30 seconds |
| Maximum starts per hour | 4 starts per hour at 400% In, Up to 60 starts per hour at lower load applications |
| Operating Parameters | |
| Starter FLC | Starter Full Load Current 17~950 Amp |
| Motor FLA | Motor Full Load Ampere 50%-100% of starter FLC |
| Pump control curves | 6 field selectable curves preventing over pressure during start and water hammer during stop |
| Pulse start duration | A pulse of 80% Un for adjustable time 0-1 second, to start high friction loads |
| Initial voltage | 10%-50% Un* (can be extended to 80% Un) |
| Current limit | 100%-400% of Motor FLA* (can be extended to 500%) |
| Ramp-up time | 1-30 seconds (can be extended to 90s*) |
| Ramp-down time | 1-30 seconds (can be extended to 90s*) |
| Dual adjustments | Secondary start stop characteristics for Initial voltage, current limit, acceleration time, deceleration time and motor FLA. |
| Energy saving | Activated when motor is lightly loaded for extended periods of time |
| Slow speed torque | Maximum torque produced while motor is operating at 1/6 of nominal speed to a maximum of 30 seconds |
| Tacho and linear acceleration | 12 selectable curves-defines gain control to improve the tacho feedback linearity |
| Starting from diesel generator | Special starting characteristics become operative via an internal dip switch. (contact terminal 8, for dual adjustment) |
| Motor Protection | |
|---|---|
| Too many starts | Determines maximum number of starts allowable during Start Period. Range 1-10 starts in start period 1-60 minutes |
| Start inhibit | Prevents starting for a variable period of 1-60 minutes after TOO MANY STARTS is indicated |
| Long start time (stall protection) | Starter trips if the full motor speed is not reached within the maximum start time of 1-30 seconds* |
| Electronic fuse (shear pin) | Trips starter in 1 cycle at 850% In during starting and 200%-850% In during running |
| Electronic overload (I²t) | Adjustable between 75%-150% of motor FLA. Overload curve can be selected by setting trip time at 500% In, 1-10 seconds |
| Under current | Starter trips when current drops below 20%-90% In, time delay 1-40 seconds |
| Under voltage(**) | Starter trips when mains voltage drops below 120–600V, time delay 1–10 seconds |
| Over voltage | Starter trips when mains voltage increases above 150-750V, time delay 1-10 seconds |
| Phase loss, (under/ over frequency**) | Starter trips when 1 or 2 phases fail and when frequency is ±4Hz of nominal frequency |
| Phase sequence | Starter trips when phase sequence is incorrect |
| Long slow speed time | Starter trips if operating at slow speed longer than 30 seconds |
| Wrong connection | Prevents starting if the motor is incorrectly connected to the starter |
| Shorted SCR | Prevents starting when one or more SCRs are shorted |
| Heatsink over temperature | Starter trips when heatsink temperature rises above 85℃ |
| External fault | Starter trips when an external contact closes for 2 seconds |
| Motor insulation (optional) | Alarm level setting 0.2-5MΩ. Trips when motor insulation decreases below 0.2-5MΩ setting. The thyristors must be protected against short circuit |
| Thyristor Protection | Metal Oxide Varistors (MOVs) and snubber circuits |
| Control | |
| Analogue I/O | Input of motor overheat signal. Output of analog signals of motor current |
| Displays | LCD in 4 selectable languages and 8 LEDs |
| Keypad | 6 clearly defined keys for easy setting |
| Aux. contact-immediate | 1 C/O, 8A, 250V A.C, 2000VA (delay 0-60 seconds) |
| Aux. contact-end of acceleration | 1 C/O, 8A, 250V A.C, 2000VA (delay 0-120 seconds) |
| Fault contact | 1 C/O, 8A, 250V A.C, 2000VA (selectable as trip or trip fail safe) |
| Insulation alarm contact (optional) | 1 C/O, 8A, 250V A.C, 2000VA |
| Communication (optional) | RS 485 with Modbus/ Profibus protocol for full control and supervision |
Measurement
Frequently Asked Questions
What are the primary applications for the SHR2DN soft starter?
The SHR2DN soft starter is extensively used in the textile industry, metallurgy industry, petrochemical industry, water treatment, shipping industry, medicine, food processing industry, mining industry, and various mechanical equipment applications.
Does the SHR2DN support remote communication and control?
Yes, it features an optional RS485 communication interface supporting Modbus/Profibus protocols, which allows for comprehensive long-range control, monitoring, and supervision.
How do I choose the correct soft starter size for my application?
For normal duty applications (such as pumps, compressors, escalators, and short conveyor belts), we recommend choosing the soft starter with the same rated power. For heavy-duty applications (such as centrifugal fans, mills, mixers, and long conveyor belts), we recommend selecting a soft starter that is one level higher.
What motor protection features does the SHR2DN provide?
It provides complete protection, including start inhibit, long start time (stall protection), electronic fuse (shear pin), electronic overload, under current, under/over voltage, phase loss, incorrect phase sequence, wrong connection, shorted SCR, heatsink over-temperature, external fault, and optional motor insulation testing.
Can this soft starter run continuously without a bypass system?
Yes, the SHR2DN soft starter is engineered to run online continuously without a bypass, offering exceptionally high reliability for demanding industrial environments.
What voltage ranges are supported by the SHR2DN soft starter?
It supports a line-to-line supply voltage range of 230V to 690V (to be specified at order) with a ±10% tolerance, compatible with both 50Hz and 60Hz frequencies.