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HollySys

  • HollySys DX30 Servo Motor Drive with RS485 Modbus Pulse Mode

HollySys DX30 Servo Motor Drive with RS485 Modbus Pulse Mode

The HollySys DX30 pulse-type servo motor drive engineered for small and medium power industrial automation delivers precise motion control across diverse machinery. Featuring integrated RS485 Modbus communication protocols, this reliable drive enables seamless multi-axi···

The HollySys DX30 pulse-type servo motor drive engineered for small and medium power industrial automation delivers precise motion control across diverse machinery. Featuring integrated RS485 Modbus communication protocols, this reliable drive enables seamless multi-axis network configurations and multi-unit synchronization via upper-level controllers.


HollySys DX30 Servo Motor Drive with RS485 Modbus Pulse Mode

Operating within a power range from 200 W to 1.5 kW, the DX30 servo drive accommodates demanding factory automation requirements through robust thermal management and flexible frame structures. Industrial engineers frequently encounter challenges regarding stable motor torque output, precise speed regulation, and reliable multi-axis bus communication in high-speed production environments. The DX30 series solves these engineering hurdles by utilizing high-performance signal processing hardware and standard Modbus RTU communication protocols over RS485 physical layers. This architecture allows control cabinets to monitor operational parameters, execute real-time tuning adjustments, and command synchronized multi-axis profiles without packet loss or command latency. By pairing with compatible AC servo motors, the drive maintains optimal current loop bandwidth, minimizes torque ripple at low velocities, and delivers fast transient responses during rapid point-to-point indexing operations.


Technical Specifications


Power Range: 200 W to 1.5 kW @ 220 VAC


Input Voltage: Single-Phase 200 VAC to 240 VAC @ 50 Hz / 60 Hz


Model DX30D-S2-020-P Power: 200 W @ 220 VAC


Model DX30D-S2-040-P Power: 400 W @ 220 VAC


Model DX30D-S2-075-P Power: 750 W @ 220 VAC


Model DX30D-T2-100-P Power: 1000 W @ 220 VAC


Model DX30D-T2-150-P Power: 1500 W @ 220 VAC


Max Motor Capacity DX30D-S2-020-P: 200 W @ 220 VAC


Max Motor Capacity DX30D-S2-040-P: 400 W @ 220 VAC


Max Motor Capacity DX30D-S2-075-P: 750 W @ 220 VAC


Max Motor Capacity DX30D-T2-100-P: 1300 W @ 220 VAC


Max Motor Capacity DX30D-T2-150-P: 1800 W @ 220 VAC


Continuous Input Current DX30D-S2-020-P: 2.2 Arms @ 220 VAC


Continuous Input Current DX30D-S2-040-P: 4.8 Arms @ 220 VAC


Continuous Input Current DX30D-S2-075-P: 7.6 Arms @ 220 VAC


Continuous Input Current DX30D-T2-100-P: 10.0 Arms @ Single-Phase 220 VAC


Continuous Input Current DX30D-T2-150-P: 14.2 Arms @ Single-Phase 220 VAC


Continuous Output Current DX30D-S2-020-P: 1.4 Arms @ 220 VAC


Continuous Output Current DX30D-S2-040-P: 2.5 Arms @ 220 VAC


Continuous Output Current DX30D-S2-075-P: 4.6 Arms @ 220 VAC


Continuous Output Current DX30D-T2-100-P: 6.9 Arms @ 220 VAC


Continuous Output Current DX30D-T2-150-P: 9.0 Arms @ 220 VAC


Max Output Current DX30D-S2-020-P: 4.2 Arms @ 220 VAC


Max Output Current DX30D-S2-040-P: 7.5 Arms @ 220 VAC


Max Output Current DX30D-S2-075-P: 13.34 Arms @ 220 VAC


Max Output Current DX30D-T2-100-P: 21.0 Arms @ 220 VAC


Max Output Current DX30D-T2-150-P: 26.5 Arms @ 220 VAC


Control Power Supply: Shared Bus Power Extraction @ 220 VAC


External Braking Resistor Min Value DX30D-S2-020-P: 40 Ohm @ 220 VAC


External Braking Resistor Min Value DX30D-S2-040-P: 40 Ohm @ 220 VAC


External Braking Resistor Min Value DX30D-S2-075-P: 40 Ohm @ 220 VAC


External Braking Resistor Min Value DX30D-T2-100-P: 20 Ohm @ 220 VAC


External Braking Resistor Min Value DX30D-T2-150-P: 15 Ohm @ 220 VAC


Braking Resistor Support: External Only with No Internal Resistor


Cooling Method DX30D-S2-020-P to DX30D-S2-075-P: Natural Convection @ Ambient


Cooling Method DX30D-T2-100-P to DX30D-T2-150-P: Forced Air Cooling @ Fan Integrated


Overvoltage Category: III @ IEC Standards


System Integration and Hardware Setup


Proper mechanical installation and electrical wiring dictate the long-term stability of the DX30 servo drive inside industrial control panels. Technicians must mount the unit vertically on conductive backplates to ensure adequate thermal dissipation, keeping a minimum clearance of 50 mm above and below the chassis. Shielded twisted-pair cables are mandatory for the RS485 Modbus communication network to eliminate electromagnetic interference generated by adjacent variable frequency drives or high-voltage lines. The cable shield must connect to earth ground at a single low-impedance point to prevent ground loops that corrupt serial data packets. Main power terminals demand secure torque tightening according to wire gauge standards, while external braking resistors must match the minimum resistance thresholds specified in the technical parameters to protect internal switching transistors from overvoltage damage during rapid deceleration cycles.


Reliability and Environmental Durability


Industrial environments subject control hardware to thermal stress, vibration, and airborne particulate contamination. The DX30 series incorporates industrial-grade electronic components housed within a rigid structural frame rated for Overvoltage Category III compliance. Lower power models utilize passive natural convection cooling, eliminating mechanical fan failures in dusty environments, while higher power 1.0 kW and 1.5 kW units employ thermally controlled forced-air cooling to maintain optimal junction temperatures. Engineers should inspect ventilation filters regularly and ensure operating ambient temperatures remain within acceptable industrial limits to achieve a high mean time between failures. Internal monitoring circuits continuously track bus voltage, output current, and heatsink temperature, triggering immediate protective shutdowns if thermal or electrical anomalies occur.


Selection Guidance and Alternative Options


Selecting the correct DX30 model requires matching the continuous and peak current requirements of the application against the mechanical load inertia and duty cycle profile. For lighter tasks involving rapid multi-axis positioning, the 200 W to 750 W A and B frame models provide exceptional dynamic tracking. When scaling up to heavy-duty positioning systems requiring 1.0 kW to 1.5 kW output, C frame configurations ensure adequate thermal headroom and overload torque capacity. Beijing Zhongping Technology provides comprehensive technical support and local inventory availability to assist engineers with cross-referencing legacy hardware, selecting matched servo motors, and acquiring replacement units tailored to specific automation frameworks.


Frequently Asked Questions (FAQ)


1. Q: What is the delivery lead time for standard DX30 servo drives?


A: Standard models such as the DX30D-S2-075-P are stocked locally by Beijing Zhongping Technology, enabling rapid shipment within 24 to 48 hours for urgent project requirements.


2. Q: What warranty terms apply to purchased units?


A: All original HollySys automation components supplied through Beijing Zhongping Technology include a standard 12-month manufacturer warranty covering material and workmanship defects.


3. Q: Can the DX30 series communicate with third-party programmable logic controllers?


A: Yes, the drive supports standard RS485 Modbus RTU communication protocols, allowing seamless integration with any PLC featuring serial communication ports.


4. Q: Does the drive feature an internal braking resistor?


A: No, the DX30 series does not feature built-in braking resistors across any power rating, requiring users to connect external resistors matching the specified minimum ohm values.


5. Q: What is the primary difference between A, B, and C frame models?


A: Frame classifications dictate physical dimensions, continuous current ratings, cooling methods, and maximum applicable motor capacity ranging from 200 W up to 1.5 kW.


6. Q: How is control circuit power supplied to the drive?


A: The control circuit power utilizes a shared bus power extraction design directly derived from the main single-phase 200 VAC to 240 VAC supply input.


7. Q: What preventive maintenance is required for forced-air cooled models?


A: Units rated at 1.0 kW and 1.5 kW utilize integrated cooling fans, requiring periodic inspection of enclosure air filters and cleaning of heatsink fins to prevent thermal faults.


8. Q: How should the RS485 communication lines be terminated?


A: Engineers should apply standard 120-ohm terminating resistors at both extreme ends of the RS485 bus network to eliminate signal reflections during high-speed polling.


Company Profile

Beijing ZhongPing Technology Co., Ltd.

Beijing Zhongping Technology Co., Ltd. is a global industrial electrical automation service provider, specializing in robotics, automation equipment, and core components. As a technology-driven enterprise, we integrate scientific research, design, marketing, technical services, and international trade.

With offices in key industrial regions and multiple global service points, we are committed to "making intelligent manufacturing simpler." Our focus on intelligence and digitalization positions us as a premier solution provider, driving advancements in the industry while enhancing productivity and efficiency for our clients.

Explore how we can elevate your manufacturing processes in today's dynamic industrial landscape.

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    Industry experts

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FAQ

1.Who are We?

Beijing Zhongping Technology Co., LTD., is a global industrial electrical automation service provider, is a scientific research, design, marketing, technical services, industrial Internet, international import and export services as one of the science and technology companies.


2.What can you buy from us?

PLC, inverter, human-machine interface, hydraulic products, low-voltage power distribution, industrial robots and core components


3.Is the item in stock or need to be purchased from another supplier?

We have a large inventory of goods and have our own warehouse.


4.What advantages do we have over other suppliers?

Our company has a large amount of inventory and a number of warehouses, but also in the country's important industrial provinces and cities with offices and a number of overseas service points. To provide you with intelligent manufacturing one-stop comprehensive services, save efforts, labor and cost.


5.Can you provide 100% new original authentic products?

We only sell new original genuine, no renovation, no fake, only for the original factory original!


6.How long is the delivery time?

If there is a stock, it will take 2-3 working days to ship, if the quantity is large, it will take 5-7 working days after receiving the payment, if it is not a conventional model, it will take some time, we will inform you of the specific delivery time.


7.Is there technical support available?

Of course, we have a professional technical team that can help you solve technical problems.


8.How do we guarantee quality?

We have three processes to control the quality of goods.

1) Our engineers will inspect the production and quality control in the factory regularly.

2) Incoming materials shall be inspected by experienced purchasing engineers before they can be stored.

3) At least 2 people in the logistics department cross-check the goods to be sent before delivery.


9.Can you guarantee the safe and reliable delivery of your products?

Yes, we strictly adopt the international standard packing. We also use special packaging for dangerous goods, and refrigerated shipping for items with temperature requirements. Special item packaging and general cargo standard packaging requirements may incur additional costs.


10.How about the freight?

The cost depends on how you choose to get the goods. Express is usually the fastest but also the most expensive way. Sea freight is the best solution for large quantities of goods. The exact shipping cost depends on the purchase amount、quantity and weight of your order. Please feel free to contact us for more information.