The energy bills at a municipal water treatment facility in Ohio have risen by 15% every year which worried the operations manager. The increase was primarily because, as they found out, there were six constant suitable pumps running irrespective of whether that much water was required or not. They solved the problem by making this pump system operational in March 2024 which the energy consumption was minimized by 34% through quality flow control. The electricity saved in the 11 months was more than the cost of any interest on the money borrowed to upgrade the water facilities.
For such purposes, the manual on the YC1800 Series AC Frequency Converter is the most Stopping Manual. Once you have applied it, it will control multiple motors, particularly motors of pumps and fans this background and Automation system which also includes wheels in the machine. Look at the VFD range, find the power you need, and you will find the YC1800 model when you will see it in the bid.
This manual includes all the technical specifications, support documents and programming examples that help the YC1800 range function optimally. It is designed to give practical advice on the choice of appropriate device distribution according to the type of support, Advantages in controlling motor and how much power savings would be realized under normal factory conditions.
Need help selecting the right VFD capacity? Contact our engineering team for application-specific guidance and a detailed quotation.
YC1800 Series Overview

Product Line Introduction
YC1800 series can also be termed as an advanced VFD variable frequency drive version from Shandong Electric as it is best used in cases where the high standard of speed control and power management is needed in industrial motor production. These tools are powered by IGBT power devices of great efficiency, as well as microcontroller technology of 32-bits, whereby the output of a given fixed frequency of power is transformed into variable frequency power thus varying the speed of the AC induction motors used in the range of 0.75kW to 15kW.
Serving as an intelligent motor speed controller that allows for soft starts, dynamic braking, and realtime monitoring of certain parameters, the YC1800 Series provides significantly more functionality than an ordinary motor starter. This reduces the wear and tear on the equipment and maximizes the energy used according to the change in the load.
This innovative solution is tailored to a broad spectrum of industries such as manufacturing units, water management facilities, heating, ventilation, and air conditioning installation systems that require reliable 380V frequency convertor technology with great control functionalities aimed at addressing market inefficiencies.
Model Range and Power Ratings
With production powers ranging from 0.75 to 15kW the YC1800-series includes conventional models used in most of the common industrial motors:
YC1800-0R7 (0.75kW / 1 HP)
Due to its compact size, it is perfectly suitable for the application in small pumps, fans, and path conveyor systems. Available operations in single-phase 220 V or three-phase 380 V with an output current of 2.5 A. The design is flat and adjustable to narrow electric casings.
YC1800-1R5 (1.5kW / 2 HP)
Ideal for small machine tools, mixer drives, and light duty process automation. For the majority of small industrial motors the rating of 1.5kW is sufficient, while also ensuring cost effectiveness for inexpensive projects.
YC1800-2R2 (2.2kW / 3 HP)
Usual for certain pumps of average size, controlling compressors and also on bagging machines. The above a 2.2kW rating ensures enough starting torque for large loads of mass and minimal efficiency losses at part loads.
YC1800-3R7 (3.7kW / 5 HP)
Offered for operation with production machines, a several times bigger capacity for pumps and HVAC fan inlets. Here, a 3.7kW capacity allows employing an up to 5HP motor with the possibility of 150% overloads for 60 sec during the motor start-up period.
YC1800-5R5 (5.5kW / 7.5 HP)
Operates industrial machinery, middle sized compressors and conveyor drives. Moreover, the rating of 5.5kW will provide a permanent operating opportunity in harsh conditions with fast stop DC braking capability.
YC1800-7R5 (7.5kW / 10 HP)
Intended for high-power pumps, big fans and in industrial conveyors. In addition a 7.5kW rating is well-suited for enabling most commercial and light industrial machines to adequately support electrically powered applications.
YC1800-011 (11kW / 15 HP)
Appropriate for more powerful compressors, extruders, and conveyors. The aforementioned performance power of 11kW is well suited for power-intensive jobs which use advanced vector control to control the speed of the compressor accurately.
YC1800-015 (15kW / 20 HP)
Flagship model for critical industrial usages such as large pumps, mixers, and production machinery. Offers high performance industrial AC drive capability with full loading continuous operation.
Custom Configurations
Technical Specifications
Input Specifications
Input Voltage Ranges
The YC1800 series accepts multiple input voltage configurations to accommodate global power standards:
- 220V AC (single-phase models)
- 380V AC (standard three-phase)
- 400V AC (European standard)
- 415V AC (UK/Australian standard)
- 460V AC (North American industrial)
- 480V AC (North American standard)
All available voltage outputs allow a ±15% tolerance, and this permits the seamless performance of equipment even if there are the energizing line swings which most industrial areas are faced with.
Input Frequency
Normal units will function on either 50Hz or 60Hz frequencies and effortlessly adjust to this during international installations so that there are no setting mistakes after setting up the equipment.
Phase ConfigurationThe
YC1800 series is applicable for both single-phase operations (220V) for lower loads and three-phase operations (380-480V) for commercial and industrial use. In the three-phase version, three-phase models allow unbalanced system excitation and enhanced efficiencies for continuous operation.
Output Specifications
Output Voltage
PWM control increases the output voltage as the input is increased from 0% to 100%, and its intensity is controlled by the change in duty cycle. A regulation voltage in which accuracy is maintained to ±1% of the rated speed over the entire speed range so as to enable constant operation of the motor.
Output Frequency
The standard frequency range is to be configured between 0Hz and 400Hz and can now cover all usual speeds of motors found in industries. Extended frequency ranges (like up to 3000 Hz) can be included for special applications such as high-speed spindles.
Power Capacity by Model
| Model | Power Rating | Output Current | Overload Capacity |
|---|---|---|---|
| YC1800-0R7 | 0.75kW / 1 HP | 2.5A | 150% for 60s |
| YC1800-1R5 | 1.5kW / 2 HP | 4.0A | 150% for 60s |
| YC1800-2R2 | 2.2kW / 3 HP | 5.8A | 150% for 60s |
| YC1800-3R7 | 3.7kW / 5 HP | 8.5A | 150% for 60s |
| YC1800-5R5 | 5.5kW / 7.5 HP | 13A | 150% for 60s |
| YC1800-7R5 | 7.5kW / 10 HP | 17A | 150% for 60s |
| YC1800-011 | 11kW / 15 HP | 25A | 150% for 60s |
| YC1800-015 | 15kW / 20 HP | 32A | 150% for 60s |
Control Features
V/F Control Mode
Standard Volts-per-Hertz control does not allow motor flux to increase proportionally with speed for systems, which is perfect for systems that include pumps, fans, or any other applications where operation is simple and stable in nature. Multi-point V/F curve adjustment, however, is better for motors with non-linear speed/torque characteristics.
Sensorless Vector Control
Two function block options help in optimization with the help of motor models for the high performance vector control of motors. The block quick state can be enabled for such applications.
Slip Compensation
The automatic tension control ensures the motor’s constant speed even at different loads, as that is important for the stable operation of such machines as those mixing or extruding particles.
Automatic Torque Boost
Special algorithms for intelligent torque regulation are designed to ensure effective start-up operation with impact loads and reducing the possibility of motor oversaturation during normal operation.
Performance Characteristics
Efficiency Ratings
The efficiency of power adaptive conversion within the system is such that it is above 95% at rated load capacities, and it is around 96–97% in the mid-speed range for normal mode operation. The losses are kept to a minimum through this high efficiency rating thereby reducing operational expenses.
Speed Regulation Accuracy
When the automatic slip compensator is in place, there is speed regulation of ±0.5% of the speed ratings over the full range of load ratings. This figure is reduced to ±0.2% under vector control ease of −0.2 % for micro and precision applications.
Starting Torque Capability
The YC1800 series provides 150% of rated torque at 1Hz when in vc mode, thus guaranteeing the seamless industrial application to motor of high inertia without an increase in the frame size of the machines.
Carrier Frequency
Common Features and Benefits

Core Features
IGBT-Based Power Conversion
Modern motor control applications depend largely on Insulated Gate Bipolar Transistors for the smooth balance of switching speed, efficiency, and ruggedness. Light reliability is no proper guarantee for continued reliability in the industrial premises and this is where Modern IGBT modules come to help.
32-Bit Microprocessor Control
The use of digital integration systems provides the possibilities for the realization of the most sophisticated control algorithms with the broadest range of operation modes, protection, and adjustment of features as per the requirement. The strategy of digital development contemplates the update of a device without the replacement of the core.
Built-In PID Controller
This scheme contains hardware PID controllers capable of controlling pressure, flow, or temperature in a closed loop without the need for external controllers. It is sufficient to connect a feedback signal of 4-20 mA or 0-10 V in the format and configure the set point value and tuning parameters.
Multi-Speed Control
Program up to 16 speed settings, beam disposed manually, or by specific input signal or communication command. Such a design helps in controlling operations where the speed levels are constant.
Jog Operation Mode
This manual jog function is particularly useful in applications where accurate positioning is required for ease of setup and maintenance, and also, the controls are administered manually.
Protection Systems
Ensuring the safety of textile fabric in the fabric manufacturing industry in Vietnam, when the power line was unstable in 2054, the units – YC1800-5R5, went to undervoltage use, counterpart to doing anything abrupt, a controlled shutdown was the case. Such measures resulted in averting damage worth approximately $8000 due to failure of the same.
Overload Protection
Achieving controlled thermal conditions allows negligibly servicing the motor with up to 150% of intermittent overloads. The 60 seconds rated overload is suitable for accommodating most motor starting currents.
Overvoltage and Undervoltage Protection
It is also dedicated to stopping the drive and the motor from using even higher input voltages than the recommended upper limit to prevent either of them from being damaged.
Short Circuit Protection
Short circuits and ground fault protection by both fast-acting current detection and IGBT shutdown was also optimized.
Overheat Protection
Numerous temperature sensors are responsible for monitoring the ambient temperature and the temperature of each individual component. Additionally, thermal overload protection is included where a gradual reduction in power output is issued in case of lack of adequate cooling.
Phase Loss Protection
Moreover, the system is equipped with the features for detection and hence prevention of input or output phase loss which arises from single-phasing the motors and drives.
Stall Prevention
Soft start operation device inhibits falsifications which are of benefit for both it and the performance of equipment it is installed on.
User Interface and Control
LED Display and Keypad
The improved LED display gives the user the possibility of adjusting the output frequency, output current, speed and motor running time, and malfunctions. Built-in membrane keypad for adjusting the parameters without additional tools.
Analog Input/Output
This type can accept analog input control signals of standard 0-10V and 4-20mA output DC speeds from an external level, e.g., a manual potentiometer. The analog outputs are often used to provide current or frequency features of the motor and also connected to an external measuring system.
Digital Inputs/Outputs
It also accommodates six digital inputs and gets start/stop signals, control signals for speed selection, and external error signals. The unit features two relay output that indicate the operational state and performance of the device and relays fault information to the device that is coordinating the devices.
RS485 Communication
The Modbus RTU protocol is supported making it possible to wire the device and connect to PLCs, SCADA or BMS systems for monitoring and control. The key operator located on the hardware allows setting up communication parameters.
Optional External Keypad
An external keypad can be linked to the drive through a cable from 1 to 3 meters for installations mounted on an arm or situations where the drive is kept at a different location.
Main Applications in Industry

Water and Wastewater
Pump Speed Control for Energy Savings
Centrifugal pumps comply with the affinity laws: lowering speed by 20% results in a reduction of power consumption of about 50%. The YC1800 series provides an opportunity for changing the flow rate of pumps, namely, replanning the pump’s performance according to the needs of the respective system, which leads to an energy saving of 30 to 50% in most cases compared to the throttling valve configuration.
Constant Pressure Water Supply
When a pressure transducer is used with the factory-installed PID controller, a YC1800 inverter maintains a water head within the system that remains constant regardless of the fluctuating consumption. This mode is very useful in buildings’ cold and hot water distribution.
Flow Control Optimization
Higher level of control means better efficiency in chemical dosing, filters, irrigation and much more applications. The start-soft motor feature is supposed to prevent the occurrence of water hammer and increases the span of the pump’s mechanical seal lifetime.
HVAC and Building Automation
Fan Speed Control
Commercial establishments and other buildings often have fans that force in or draw out air based on the demands and requirement set most of the time. Acoustical considerations encourage the use of variable speed fans so that noise is reduced while energy is saved and control is turned on and off according to need, that is using space occupied and CO2 detectors.
Chiller Compressor Control
A number of technical solutions allowing for the smooth modulation of compressor capacity in HVAC are employed in the devices of the YC1800 series, which offer a sharper ability to maintain temperature accuracy and improve partial load efficiency.
Air Handling Unit Optimization
The presence of such a solution as the supply, return fans and chilled water pumps Coordinated Control increases the overall efficiency of the HVAC system while keeping the conditions of comfort.
Manufacturing and Processing
Conveyor Belt Speed Control
Synchronized conveyor operation enhances the efficiency of transferring materials and reduces the risk of damaged products due to handling. As an additional feature of this control system, there are parameters that can be programmed with numerous speeds which allow for very quick adjustment of the system when the rate of production changes.
Mixer and Agitator Control
Variable speed simplifies starting and stopping of viscous mixes and modulation of the mixing rate. If the material status changes, the torque control mode prevents motor shaft overloading as it will adjust the rate accordingly.
Machine Tool Spindle Drives
High-frequency outputs (up to 3000Hz) support operations with high-speed spindles. Accurate speed control is necessary for ensuring high quality surface finishes in CNC machining.
Material Handling
Germany is a country located in Europe and famous for both its fast and efficient logistics sector, where a user took his/her conveyor system to the next level, it being in an operational state by autumn of 2024. The old across-the-line motor starters have been replaced by YC1800-3R7 type variants. The capability to adjust speed made it possible to restore the order at the allocator structure and eliminate packaging defects caused by friction between packages by 60% as well as to reach 125% of the peak activity norm.
Crane and Hoist Control
One of the crucial factors to be considered in the design of automated systems is an appropriate level of dynamic response. The manner by which the speed and torque profiles are shaped has an effect on the resonance behavior of the complete drive system, as well as on the motion and accommodation profile of the movable mechanical parts.
Elevator ApplicationsThe
YC1800 series smooth lifting and landing almost without jerks in all types of lift systems: goods or passenger elevators, floor goods supply lifts, etc., has extended system elements and cables’ lifetime.
Automated Storage Systems
Specific Use Cases
Compressor Control
The output of variable speed air compressors is based on the actual demand, eliminating the problem of energy being wasted when the equipment is not in use or when some adjustment is made by the regulating valves to control the air flow. The pressure regulation system will always ensure correct and stable air pressure in the system within very minimal deviations in either direction.
Extruder Applications
Constant torque mode ensures ability to extrude uniformly even for different material compositions and heat variations ensuring consistent extrusion pressure and product geometry.
Textile Machinery
Precise tension control in conjunction with similar speed helps to bring up the quality of a woven, dyed or finished fabric considerably.
Food Processing Equipment
Variable speed for particularly pest-sensitive handling of the products and sanitary effects in the boxes, with the option of IP54 or IP65 bevel gear units.
Models Selection Guide

Capacity Selection Criteria
Motor Nameplate Power Matching
Of a comparable frame size, select a YC1800 series drive with a power rating that is equal to or exceeds the power value inscribed on the motor nameplate. In cases of horsepower motor-rated engines, use conversion: 1 HP = 0.746kW.
Current Rating Verification
The specifically designed output ranges for the motor must comply with the manufacturer’s values and should not be less than the full load current of the motor under any circumstances. This aspect is even more significant for motors that are meant to be used with high service factors or have fixed duty ratings.
Starting Torque Considerations
Equipment like conveyors, compressors, and mixers tend to consume much more power at the onset of their motion. The suggested step up in size is necessary to accommodate sufficient transition speed. That comes in handy. The Hauser drive’s 150% load cycle has the ability to compensate for all kinds of star distribution concerns.
Future Expansion Margins
When implementing capacity planning in projects, one should pay special attention to forecasted load growth and change over likely economic useful life since the cost of the larger drive that can be used in future is not the only issue. When the size is larger by one level, there is not much difference in cost and it usually economical to go for the larger size over the protective life of the equipment.
Application-Specific Recommendations
Light Duty (0.75-2.2kW)
The YC1800 Series AC Frequency Converter Models range from 0.75 kW to 2.2 kW which covers small works, a single machine or more than one machine units, and light automation. They are designed to be installed in switchgear configurations and deliver the needed fan, pump, or conveyor drive capabilities.
Standard Industrial (3.7-7.5kW)
Plants that have installation pumps, compressors, and equipment in servicing have potential growth and usually necessitate 3.7-7.5kW power. These are seemingly choices as the targets of these devices are manufacturing processes and hence economical during acquisition.
Heavy Duty (11-15kW)
Drives of 11kW and above are required for large industrial plant machinery, big compressors, and materials handling. These are applications that require continuous duty, and are handled through YC1800-011 and YC1800-015.
Voltage and Frequency Requirements
Matching Input Power Source
Check if your facility supply voltage is the same as the YC1800 input rating. Eylei and most other industrial plants in the world use normal 380/ or 480V three-phase but you will still need to verify.
Determining Output Requirements
The system’s output voltage automatically tracks the input voltage. It is necessary to ensure the motor nameplate voltage rating is meant for the available supply voltage For the system to function normally.
Special Configuration Needs
For non-standard requirements, Shandong Electric provides custom configurations including:
- Extended frequency ranges for high-speed spindles
- Special voltage inputs for regional power standards
- Enhanced filtering for sensitive environments
- Marine and outdoor rated enclosures
Programming and Configuration

Basic Parameter Setup
Motor Parameters Configuration
Parameters P00.01 (Nominal Power of the motor), P00.02 (Nominal Voltage of the motor), P00.03 (Nominal Current of the motor) and P00.04 (Nominal Frequency of the motor) should be considered in the nameplate in the present position. Correct data on the motor is capable of enhancing control and protection performance.
Acceleration and Deceleration Time Settings
The parameter values of P00.08 (torque scale) and P00.09 (tuning scale) describe the speed with which the motor achieves the reference speed. This is normally determined to be 1 to 10 seconds, but it may be longer or shorter depending on the load inertia and mechanical requirements.
Maximum Frequency Limits
Parameter P00.05 defines the frequency band upper limit, most typically 50Hz or 60Hz specified for a specific motor. However, wider bands than these are permissible with special types of motors, especially those intended for overspeed operations, even, though this rarely causes much damage.
V/F Curve Selection
The parameter P00.06 is the one responsible for selection of the voltage-to-frequency relationship. Standard motors are configured for a linear V/F curve which corresponds to the value 0. Ventilation and water pumping shifts might require a supplementary squared V/F curve, i.e., capacitor voltage lowered (setting 1) for optimum energy consumption at lesser frequencies.
Advanced Features
PID Controller Setup
You can use PID control by making P03.00 to 1.0. Make P03.01, P03.02 and adjustment parameters of proportional, integral and differential modes P03.03-P03.05 for proper control in hard conditions.
Multi-Speed Programming
In order to use more than one speed it is necessary to assign P02.00. Program the speeds using the corresponding frequency values P02.01 – P02.16. Speeds are activated by the digital inputs S1- S4 by the binary combination specified in P02.17.
Communication Parameters
Set the parameters of Modbus address, baud rate, data format, P04.00, P04.01 and P04.02 according to the settings of your PLC or SCADA system. The settings are set to address 1, baud rate at 9600 and data format of 8-N-1 format by default.
Protection Settings
Alter the cutoff occurrences of the trips in P05.00-P05.02, high voltage trip setting of P05.03-P05.04 and disabled relay element in P05.05-P05.06 parameters in order to comply with the wishes of the application program and the safe operating range.
Troubleshooting Common Issues
Overcurrent Faults (OC)
Look for any signs of mechanical jamming or unduly high loads, or very short windows of axis acceleration. Check the continuity of the motor cables and ensure the motor settings have been properly entered.
Overvoltage Conditions (OV)
For systems accommodating high-inertia loads, the interval defined by the second row of parameter P00.09 is too small, which may cause recirculation of regenerative power. Raise P00.09 or add the appropriate dynamic breaking external resistors with high wattage.
Parameter Reset Procedures
For example, to revert to factory standards, put 1 into P99.00 and press ENTER. All customer parameters will be removed and will need to be added back. Write down all your parameters in order to ensure casualty resets.
Competitive Comparison
YC1800 vs. Competitor Models
Performance Comparison
As a case in point, the YC1800 series of drives has reached the same or higher performance levels demonstrated by the international manufacturers such as ABB ACS310 and Siemens G120 with the price cuts of 30-50%. Voltage regulation, speed control accuracy and overload capacity, and other characteristics satisfy requirements for applying the drives in general-purpose, less demanding systems.
Price Positioning
The operational effectiveness of the YC1800 model is significantly lower than that of a Japanese or European car; however, its pricing is also cheaper. The low pricing does not reflect on the quality of the goods but rather in the areas of distribution of the expenses such as efficient production and direct distribution to consumers.
| Feature | YC1800 Series | European Brands | Low-Cost Alternatives |
|---|---|---|---|
| Efficiency | 95-97% | 96-98% | 90-94% |
| Control Modes | V/F, Vector | V/F, Vector, Servo | V/F only |
| Overload | 150% / 60s | 150% / 60s | 120% / 60s |
| Warranty | 2 years | 1-2 years | 1 year |
| Support | Direct engineering | Distributor | Limited |
| Certification | CE, ISO | CE, UL | Varies |
Value Proposition
Cost-Performance Advantage
The YC1800 series performs well in the mid-price range of professional-grade models. The functional characteristics of the devices such as IGBT technology, vector control, and protection package can equal those of the best brands, and still they do not bring the high cost increase from the former.
Quality Assurance
Manufacturers’ compliance with ISO 9001 quality standards defines the expected product quality by ensuring uniformity across the product range. Every component should consist of control voltage characteristics, a power supply unit, modulation circuits, and other operation components to make it perfect.
Installation and Commissioning

Installation Requirements
Electrical Requirements
Add a dedicated circuit breaker usually rated at 125% of the drive current to the drive installation. Care should also be taken to size appropriate cables accounting for voltage drop over the given distances. Following specific guidelines on how to do grounding and safety is recommended.
Environmental Conditions
YC1800 units operate in standard industrial environments:
- Ambient temperature: -10°C to +40°C (derating above 40°C)
- Relative humidity: <95% (non-condensing)
- Altitude: <1000m (derating above 1000m)
- Protection rating: IP20 standard (IP54/65 options available)
Cooling and Ventilation
Provide adequate clearance for cooling airflow:
- Front: 100mm minimum (for access)
- Rear: 50mm minimum (for airflow)
- Sides: 25mm minimum
- Top: 100mm minimum
Ensure ventilation air is clean and free from conductive dust, corrosive gases, or oil vapors.
Commissioning Process
Initial Power-Up Checklist
Before applying power:
- Verify all electrical connections
- Check control wiring and terminal connections
- Ensure proper grounding
- Confirm motor wiring matches drive output configuration
Parameter Verification
Upon first power-up:
- Set motor nameplate parameters (P00.01-P00.04)
- Configure acceleration/deceleration times (P00.08-P00.09)
- Set maximum frequency (P00.05)
- Select control mode (P00.06)
Test Run Procedures
Before connecting to process loads:
- Run motor at 25% speed, verify rotation direction
- Check current draw matches expected values
- Test acceleration and deceleration smoothness
- Verify stop modes function correctly
Performance Validation
Monitor operation under load:
- Verify speed regulation maintains setpoint
- Check drive temperature remains within limits
- Confirm current draw is within rated values
- Document baseline performance parameters
Conclusion
The YC1800 Series Variable Frequency Drives provide a reliable, cost-effective solution for industrial engine control applications. Vectorial control up to 0.75 kW — 15 kW and plentiful protection features enable these variable speed drives to be used in numerous applications ranging from water treatment to manufacturing.
Key takeaways for your evaluation:
- Power range covers most industrial motors – from 0.75kW workshop units to 15kW heavy industrial models
- Multiple control modes – V/F control for general applications, vector control for high-performance requirements
- Built-in energy savings – Variable speed operation typically reduces pump and fan energy costs by 30-50%
- Comprehensive protection – Safeguards both drive and motor while minimizing nuisance trips
- Cost-performance advantage – Professional features at competitive pricing with direct engineering support
If you only need a single pump with a motor speed control, or an integrated system on your diesel engine powered machines, the YC1800 series is here to offer help more explicitly due to the fact that it includes features from certain canted approaches as opposed to only those that are at the top.