PowerFlex 520 Frequency Converter | Compact Size Conveyor Packaging
Built-in Ethernet
The PowerFlex 520 VFD is designed for space-constrained OEM
applications like conveyors and packaging machinery. Its compact
size lets you fit more drives into smaller cabinets, reducing
enclosure footprint and cooling requirements. With built-in
Ethernet (dual ports on the 525 model), you get native EtherNet/IP
connectivity without an extra communication card—saving wiring,
simplifying integration with Logix controllers, and enabling
device-level ring (DLR) topologies for network redundancy.
PowerFlex 520 Series - Model & Core Parameter Table
| Series | Model Number | Voltage | Rated Power (kW/HP) | Output Current (A) | Main Control | Communication | Safety | Certifications |
|---|
| 523 | 25A‑D010N104 | 380-480V | 1.5 / 2 | 3.7 | V/f, SVC | Modbus RTU | No STO | CE, UL, cULus, RCM |
| 523 | 25A‑D013N104 | 380-480V | 2.2 / 3 | 4.9 | V/f, SVC | Modbus RTU | No STO | CE, UL, cULus, RCM |
| 523 | 25A‑D017N104 | 380-480V | 3.7 / 5 | 6.6 | V/f, SVC | Modbus RTU | No STO | CE, UL, cULus, RCM |
| 523 | 25A‑D024N104 | 380-480V | 5.5 / 7.5 | 9.6 | V/f, SVC | Modbus RTU | CE, UL, cULus, RCM |
|
| 523 | 25A‑D032N104 | 380-480V | 7.5 / 10 | 12.6 | V/f, SVC | Modbus RTU | No STO | CE, UL, cULus, RCM |
| 523 | 25A‑D045N104 | 380-480V | 11 / 15 | 17.8 | V/f, SVC | Modbus RTU | No STO | CE, UL, cULus, RCM |
| 523 | 25A‑E019N104 | 380-480V | 15 / 20 | 19.2 | V/f, SVC | Modbus RTU | No STO | CE, UL, cULus, RCM |
| 523 | 25A‑E027N104 | 380-480V | 18.5 / 25 | 27.0 | V/f, SVC | Modbus RTU | No STO | CE, UL, cULus, RCM |
| 523 | 25A‑E032N104 | 380-480V | 22 / 30 | 32.0 | V/f, SVC | Modbus RTU | No STO | CE, UL, cULus, RCM |
| 525 | 25B‑D2P3N104 | 380-480V | 0.75 / 1 | 2.3 | V/f, SVC, PM | EtherNet/IP, Modbus TCP/RTU | STO (SIL2/PLd) | CE, UL, cULus, RCM |
| 525 | 25B‑D4P0N104 | 380-480V | 1.5 / 2 | 4.0 | V/f, SVC, PM | EtherNet/IP, Modbus TCP/RTU | STO (SIL2/PLd) | CE, UL, cULus, RCM |
| 525 | 25B‑D6P0N104 | 380-480V | 2.2 / 3 | 6.0 | V/f, SVC, PM | EtherNet/IP, Modbus TCP/RTU | STO (SIL2/PLd) | CE, UL, cULus, RCM |
| 525 | 25B‑D9P0N104 | 380-480V | 4.0 / 5 | 9.0 | V/f, SVC, PM | EtherNet/IP, Modbus TCP/RTU | STO (SIL2/PLd) | CE, UL, cULus, RCM |
| 525 | 25B‑D012N104 | 380-480V | 5.5 / 7.5 | 12.0 | V/f, SVC, PM | EtherNet/IP, Modbus TCP/RTU | STO (SIL2/PLd) | CE, UL, cULus, RCM |
| 525 | 25B‑D017N104 | 380-480V | 7.5 / 10 | 17.0 | V/f, SVC, PM | EtherNet/IP, Modbus TCP/RTU | STO (SIL2/PLd) | CE, UL, cULus, RCM |
| 525 | 25B‑D024N104 | 380-480V | 11 / 15 | 24.0 | V/f, SVC, PM | EtherNet/IP, Modbus TCP/RTU | STO (SIL2/PLd) | CE, UL, cULus, RCM |
| 525 | 25B‑E019N104 | 380-480V | 15 / 20 | 19.0 | V/f, SVC, PM | EtherNet/IP, Modbus TCP/RTU | STO (SIL2/PLd) | CE, UL, cULus, RCM |
| 525 | 25B‑E032N104 | 380-480V | 22 / 30 | 32.0 | V/f, SVC, PM | EtherNet/IP, Modbus TCP/RTU | STO (SIL2/PLd) | CE, UL, cULus, RCM |
Application Scenarios for PowerFlex 520 Series AC Drives
Main Application Scenarios
- Energy-saving retrofits for fans, pumps and other general-purpose
loads
- Small to medium-sized industrial systems in factories, workshops
and processing facilities
- Global export-oriented equipment with UL, CE and other
international certifications
- Compact and reliable drive solutions for various OEM machinery
worldwide
PowerFlex 523 (Economy Type, 25A Series)
- Small conveyors, mixers, fans and pumps with basic speed control
requirements
- General-purpose machinery such as small compressors and ventilation
equipment
- Simple OEM machines and auxiliary machine tools with cost-sensitive
demands
- Light industrial equipment with only basic start-stop and speed
regulation functions
PowerFlex 525 (High Performance Type, 25B Series)
- Precision conveyors, small automated production lines and machine
tools requiring stable control
- Networked equipment and intelligent systems supporting EtherNet/IP
and Modbus TCP communication
- Machinery for European and American markets with safety standards,
thanks to built-in STO function
- Permanent magnet motor applications, small lifting and material
handling equipment
- Food & beverage, packaging, water treatment and light industrial
automation systems
Frequently Asked Questions
1. What's the real difference between 523 and 525 that overseas
customers often mix up?
523 is cheaper, only has Modbus, no safety functions; 525 has
built-in Ethernet port and STO, which is basically required for
European and American projects.
2. What to do if it reports undervoltage/overvoltage as soon as
it's powered on?
Mostly due to unstable overseas power grid, phase loss, or wrong
voltage selection (connecting 220V drive to 380V). First measure
the input voltage.
3. What to do if it reports overcurrent during operation or trips
immediately after startup?
Motor cable is broken/short-circuited, motor is leaking, or
acceleration is too fast, parameters are mismatched. First test the
drive without load to troubleshoot.
4. Common reasons for failing to connect EtherNet/IP to PLC?
IP is not in the same network segment, network cable is faulty,
communication is not enabled on the drive, or old firmware is
incompatible.
5. Overseas customers insist on STO safety function, how to choose
520 series?
Only 525 has built-in STO; 523 doesn't. For exports to EU and North
America, choose 525 directly.
6. Why does the motor overheat, vibrate or make loud noise?
Carrier frequency is too low, motor parameters are not set
correctly, or long cable causes strong interference. Properly
increase the carrier frequency.
7. What to note after factory reset?
Factory reset on 520 series will clear all parameters. Be sure to
back up parameters before commissioning, otherwise you have to
reset them all.
8. Overseas customers only understand HP, not kW. How to handle it?
Convert directly by 1HP ≈ 0.75kW, and mark both kW and HP on
nameplates and quotes.
9. What certifications are needed for customs clearance and export
to EU and North America?
CE and UL/cULus certifications are a must; without them, customs
clearance and acceptance will fail.
10. Can 520 series be used for hoisting and lifting equipment?
Not recommended. 520 is a light-duty type without forced braking
capability, which is prone to slipping, and overseas customers
generally don't allow it.
11. Is it easy to repair overseas if it breaks down?
Small faults can be repaired on-site; if the module is burned, it's
basically only replaceable with a new one. Spare parts for 520 are
not as many as expected, so it's better to replace the whole drive
directly.
12. What to note for long-distance wiring (over 50 meters)?
An output reactor must be added, otherwise it's easy to report
faults and burn the drive. Long-distance wiring is common in
overseas construction sites.
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