What does Err.31 mean on Powtran Inverter?
- TTimothy BrightSep 23, 2025
Err.31 on your Powtran Inverter means that the PID feedback is less than the set value of E2.11. Check the PID feedback signal or set E2.11 to an appropriate value.

What does Err.31 mean on Powtran Inverter?
Err.31 on your Powtran Inverter means that the PID feedback is less than the set value of E2.11. Check the PID feedback signal or set E2.11 to an appropriate value.
What causes Err.03 on my Powtran PI9000 and how can I fix it?
Err.03 on your Powtran Inverter can be triggered by a few things. It might be due to a short-circuit or earthing of the inverter output (eliminate peripheral faults). If you're using vector control mode without parameter identification, perform the identification for the motor parameters. Also, check if the deceleration time is too short and increase it if needed. Low voltage can also cause this, so set the voltage to the normal range. Make sure you aren't suddenly increasing the load during deceleration; if you are, cancel the sudden load. Finally, if you haven't installed a braking unit and resistor, do so.
What does Err.04 mean on my Powtran PI9000 and how do I resolve it?
The Err.04 error on your Powtran Inverter can be caused by a short-circuit or earthing of the inverter output, so you should eliminate peripheral faults. Also, if the control mode is vector and without parameter identification, perform the identification for the motor parameters. If the voltage is low, set it to the normal range. Check for sudden load increases during operation and cancel them. Lastly, the inverter might be too small for the job, so choose an inverter with a larger power level if necessary.
How to fix Err.05 on a Powtran PI9000 Inverter?
If your Powtran Inverter is displaying Err.05, here are a few things to check: First, ensure that a braking unit and brake resistor are installed. If the input voltage is too high, adjust it to the normal range. Also, check if there's an external force dragging the motor during acceleration; if so, cancel it or install a braking resistor. Finally, if the acceleration time is too short, increase it.
Why is my Powtran PI9000 showing Err.14 and how to fix it?
If your Powtran Inverter is showing Err.14, it indicates a problem with overheating. This could be due to a blocked air duct (clean it up), a damaged fan (replace it), a high ambient temperature (decrease it), a damaged module thermistor (replace it), or a damaged inverter module (replace it).
What does Err.22 mean on Powtran PI9000?
Err.22 on your Powtran Inverter indicates overvoltage or overcurrent. Eliminate overvoltage or overcurrent fault.
What does Err.20 mean on Powtran PI9000?
Err.20 on your Powtran Inverter can indicate a damaged encoder (replace the encoder), an abnormal PG card (replace the PG card), an encoder model that doesn't match (correctly set the encoder model according to the Actual conditions), or an error in the encoder connection (eliminate the line fault).
What does Err.21 mean on Powtran PI9000?
Err.21 on your Powtran Inverter indicates a damaged EEPROM chip. Replace the main control panel.
What does it mean when my Powtran Inverter shows Err.13?
If your Powtran Inverter shows Err.13, it could mean that the lead wires from the inverter to the motor are not normal (eliminate peripheral faults), the inverter's three-phase output is unbalanced when the motor is running (check if the motor's three-phase winding is normal and eliminate faults), or the drive panel is abnormal (seek for technical support).
Why does my Powtran PI9000 Inverter show Err.11?
If your Powtran Inverter shows Err.11, it could be due to a few reasons: the power grid voltage is too low (check the power grid voltage), the motor protection parameters (F8.03) are not set appropriately (correctly set this parameter), or the load is too large, or the motor stall occurs (reduce the load and check the motor and its mechanical conditions).
Steps for checking the inverter after unpacking to ensure all components are present and correct.
Outlines crucial safety measures to prevent injury or damage during installation, wiring, and operation.
Lists important precautions related to motor, frequency, mechanical devices, and output side connections.
Defines the suitable applications for the inverter and specifies conditions where manufacturer consultation is necessary.
Provides detailed technical specifications for various inverter models, including power, voltage, and current ratings.
Details general operational specifications, control systems, input/output signals, and protection functions of the inverter.
Presents the physical dimensions and installation hole sizes for different inverter series and models.
Illustrates the physical appearance of the inverter and specifies dimensions for mounting and installation holes.
Provides dimensional data and installation sizes for the PI9100 series inverters, categorized by power supply level and type.
Details dimensional specifications and installation sizes for the PI9200 series inverters, covering various base numbers and power ratings.
Presents the dimensions and installation sizes for the PI9300 series inverters, categorized by power and series.
Lists the dimensions and installation sizes for the PI9400 series inverters, including various power and series configurations.
Provides diagrams showing the physical dimensions and mounting hole details for the JP6E9100 and JP6D9200 keyboards.
Describes the operation panel displays of the JP6E9100 and JPR6E9100 keyboard control panels.
Explains the function and meaning of the various indicator lights on the inverter's keyboard interface.
Details the function of each key on the operation panel, including parameter setting, shifting, and navigation.
Provides examples and instructions on how to view and modify function codes and parameters within the inverter's menu structure.
Outlines the step-by-step process for commissioning the PI9000 inverter, including control manner and parameter setup.
Explains the organization of function parameters into groups (F, E, b, d) and provides a reference guide to their functions and page numbers.
Details parameters related to monitoring functions, such as output frequency, voltage, current, and status.
Covers fundamental function parameters including motor control mode, frequency settings, and command sources.
Describes the configuration and function selection for digital and analog input terminals.
Explains the configuration and function selection for digital and analog output terminals and relays.
Details parameters related to starting and stopping the motor, including start-up modes, DC braking, and acceleration/deceleration.
Covers parameters specific to V/F control, including V/F curve settings, torque boost, and slip compensation.
Details parameters for vector control, including speed loop settings, torque limits, and differential gains.
Explains parameters related to the keyboard operation and display functions, including status display and key definitions.
Covers auxiliary functions such as jog operation, jump frequency, and acceleration/deceleration time settings.
Details various fault types, their possible causes, and corresponding solutions, including protection settings.
Explains parameters for communication settings, including baud rate, data format, and protocol selection.
Describes parameters for torque control mode, including setting sources and acceleration/deceleration times.
Covers parameters for optimizing control performance, such as current limiting, voltage settings, and PWM modulation.
Details extended parameters for special applications like proportional linkage and PID start deviation.
Explains parameters for wobbulate, fixed-length, and counting functions, used in applications like textile winding.
Covers parameters for multi-stage command and simple PLC functions, enabling complex sequence control.
Details parameters for the built-in PID control function, including feedback sources, action direction, and gains.
Explains parameters for configuring virtual digital inputs and outputs, allowing flexible signal mapping.
Covers essential motor parameters that need to be set for accurate inverter control and performance.
Provides functions for managing parameters, including initialization, password settings, and display configurations.
Details how to query fault history, including fault types, causes, and their corresponding codes.
Defines electromagnetic compatibility in the context of electrical equipment operation.
Outlines the relevant Chinese and international standards that the inverter complies with regarding EMC.
Discusses directives related to EMC, including harmonic effects and interference precautions.
Lists common fault IDs, failure types, possible causes, and recommended solutions for troubleshooting inverter issues.
Specifies the recommended environmental conditions for installing and operating the inverter to ensure optimal performance and longevity.
Provides guidelines on the proper installation direction and required clearance space around the inverter for adequate ventilation.
Illustrates the main circuit and control circuit wiring diagrams for connecting the inverter to power, motor, and control signals.
Shows the detailed wiring diagram for inverters with power ratings below 11kW, covering main and control circuits.
Provides the wiring diagram for inverters with power ratings between 11kW and 15kW, illustrating main and control circuit connections.
Presents the wiring diagram for inverters with power ratings from 18.5kW to 355kW, detailing main and control circuit connections.
Details the main circuit terminal configurations for different power ranges and types of PI9000 inverters.
Illustrates the physical layout and labeling of main circuit terminals for various PI9000 models.
Introduces the control circuit terminals and their general categories.
Provides a detailed description of each control circuit terminal, including its symbol, name, and function.
Lists critical safety precautions and recommendations for wiring the inverter to prevent damage and ensure safe operation.
Outlines a routine inspection and maintenance schedule, detailing checks for display, cooling system, body, and circuit terminals.
Identifies internal mechanical wear parts that require regular replacement and their standard life times.
Provides guidelines for storing the inverter when not in immediate use to maintain its condition.
Discusses capacitor rebuilding and charging procedures, especially for inverters that have been stored for a long time.
Offers guidance on using instruments for measuring voltage and current, noting potential inaccuracies and limitations.
Mentions the availability of optional functional modules like RS485 and PG cards, requiring specific selection during ordering.
Explains the role of MCCB or ELCB as power switches and protective devices for the inverter's power supply.
Details the function of AC input reactors in inhibiting harmonics and improving power factor, recommending their use in specific cases.
Describes the purpose of noise filters in reducing conducted EMI and radio interference, and lists suitable installation environments.
Explains the function of contactors for protection and notes that they should not be used for motor start/stop control.
Discusses the built-in braking unit for PI9000 series and models requiring external braking units, with tables for matching resistors.
Explains the function of output EMI filters in suppressing noise and leakage current.
Describes the use of AC output reactors to inhibit overcurrent and radio interference, especially for long motor cables.
Provides specifications and installation sizes for input filters, differentiating between 380V and 690V models.
Lists specifications and installation sizes for output filters for both 380V and 690V models.
Details specifications, including voltage, power, current, and dimensions, for AC input chokes in 380V and 690V configurations.
Provides specifications for output AC chokes, listing model, voltage, power, current, and dimensions for 380V and 690V versions.
Lists specifications for DC chokes, including model, voltage, power, current, inductance, and installation size.
Provides specifications for circuit breakers, cables, and contactors, including current ratings and dimensions.
Outlines the warranty period and terms, including conditions for return, replacement, and repair services.
Lists conditions and circumstances under which product quality issues are not covered by the warranty.
Specifies conditions where the manufacturer reserves the right to refuse warranty service.
Describes the procedure for returning, replacing, or repairing products, requiring company confirmation and responsibility attribution.
Defines the serial communication protocol, including transmission information, format, and bus structure for RS485 communication.
Details the communication content, including master polling, encoding methods, data transfer, and error checking.
Explains the installation of the RS485 communication module and its connection to control boards.
Provides a detailed mapping of communication parameter addresses, explaining labeling rules and examples for accessing inverter settings.
Introduces the CAN bus communication card and its suitability for PI9000 inverters, referring to external protocol documents.
Covers the mechanical installation procedures and describes the terminal functions of the CAN bus communication card.
Illustrates the mechanical installation methods for the CAN bus communication card on different control boards (SCB, LCB).
Details the terminal functions and specifications for the CAN bus communication card, including signal descriptions.
Introduces the Profibus-DP communication card and its purpose for fieldbus control integration with Powtran inverters.
Describes the terminal functions and configuration options for the Profibus-DP communication card.
Explains the function of DIP switches for baud rate selection and Profibus-DP communication address settings.
Details the terminal functions for external communication (J4-6) and PC communication (SW1-8).
Describes the function and meaning of the LED indicators on the Profibus-DP communication card for status and connection diagnostics.
Outlines the warranty period and terms, including conditions for return, replacement, and repair services.
Lists conditions and circumstances under which product quality issues are not covered by the warranty.
Specifies conditions where the manufacturer reserves the right to refuse warranty service.
Describes the procedure for returning, replacing, or repairing products, requiring company confirmation and responsibility attribution.
Section for customers to report details about load and control situations, failure types, and descriptions.
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