Category: Bosch Rexroth

The CONVO Variable Frequency Drive G3/P3 Series is a high-performance variable speed control device widely used in industrial automation, fans, pumps, and other fields. This article provides a detailed guide on the operation panel functions, parameter initialization, parameter copying, password setting and removal, parameter access restrictions, external terminal control, fault codes, and troubleshooting for the CONVO Variable Frequency Drive G3/P3 Series.

I. Introduction to Operation Panel Functions

The operation panel of the CONVO Variable Frequency Drive G3/P3 Series integrates multiple functions, including operation control, parameter settings, and status monitoring. The main function keys and their uses are as follows:

1. RUN (Run): Starts the frequency drive.
2. LOCAL/REMOT (Local/Remote): Switches between local control and remote control modes.
3. FWD/REV (Forward/Reverse): Sets the running direction of the motor.
4. TUNE/TC (Tune/Speed Adjustment): Enters the tuning or speed adjustment mode.
5. PRG (Program): Enters the program setting mode.
6. QUICK (Quick): Quickly sets the frequency.
7. MF.K (Multifunction Key): Multifunction button used for operations in different modes.
8. STOP/RST (Stop/Reset): Stops the frequency drive operation or resets the system.
9. ENTER (Confirm): Confirms the current operation.
10. ↑ (Up) and ↓ (Down): Adjusts parameter values or frequency.

Through these buttons, users can easily control the operation status of the frequency drive, set parameters, and monitor the system status.

II. Parameter Initialization (Restore Factory Settings)

Parameter initialization refers to restoring all parameters of the frequency drive to their factory settings. The specific operation steps are as follows:

1. Enter the parameter setting mode: Press the PRG key to enter the parameter setting mode.
2. Select parameter initialization: Use the ↑ or ↓ keys to select the parameter H-73 (Parameter Initialization).
3. Set the initialization value: Set the value of H-73 to 1 (Restore factory settings by machine type) or 2 (Clear fault records).
4. Confirm the operation: Press the ENTER key to confirm, and the frequency drive will automatically restore to the factory settings.

III. Using the Operation Panel to Copy Parameters to Another Frequency Drive of the Same Model

The parameter copying function allows users to copy the parameter settings from one frequency drive to another frequency drive of the same model. The specific operation steps are as follows:

1. Prepare two frequency drives of the same model and ensure they are in the same initial state.
2. On the source frequency drive, enter the parameter setting mode, select the parameter H-73, and set it to 3 (Parameter Copy).
3. Use a communication cable to connect the RS485 interfaces of the two frequency drives.
4. On the target frequency drive, enter the parameter setting mode, select the parameter H-73, and set it to 4 (Receive Parameters).
5. Press the ENTER key, and the source frequency drive will transmit all parameters to the target frequency drive.
6. After completion, disconnect the communication cable, and the parameter settings of the two frequency drives will be consistent.

IV. Setting and Removing Passwords

The CONVO Variable Frequency Drive G3/P3 Series supports setting passwords to protect parameter settings. The specific operation steps are as follows:

Setting a Password

1. Enter the parameter setting mode: Press the PRG key to enter the parameter setting mode.
2. Select password setting: Use the ↑ or ↓ keys to select the parameter H-79 (Password Setting).
3. Enter the password: Press the ENTER key, enter a 4-digit numeric password, and then press the ENTER key to confirm.

Removing a Password

1. Enter the parameter setting mode: Press the PRG key to enter the parameter setting mode.
2. Select password setting: Use the ↑ or ↓ keys to select the parameter H-79 (Password Setting).
3. Enter the current password: Press the ENTER key, enter the current password, and then press the ENTER key to confirm.
4. Clear the password: Set the password to 0000, and then press the ENTER key to confirm.

V. Setting Parameter Access Restrictions

To prevent parameters from being accidentally modified, the CONVO Variable Frequency Drive G3/P3 Series provides a parameter access restriction function. The specific operation steps are as follows:

1. Enter the parameter setting mode: Press the PRG key to enter the parameter setting mode.
2. Select parameter access restriction: Use the ↑ or ↓ keys to select the parameter L-72 (Parameter Write Protection).
3. Set access restriction: Set the value of L-72 to 1 (Prohibit modifying other parameters except for the digital set frequency and this parameter) or 2 (Prohibit modifying all parameters except for this parameter).
4. Confirm the operation: Press the ENTER key to confirm.

VI. External Terminal Forward/Reverse Start/Stop and External Potentiometer Speed Control

The CONVO Variable Frequency Drive G3/P3 Series supports external terminal control for forward/reverse start/stop and external potentiometer speed control. The specific wiring and parameter settings are as follows:

External Terminal Forward/Reverse Start/Stop

1. Wiring:

• FWD (Forward): Connect to the external forward control terminal.
• REV (Reverse): Connect to the external reverse control terminal.
• CM (Common): Connect to the common terminal of the external control terminal.

1. Parameter Settings:

• b-3 (Run Command Channel Selection): Set to 1 (External Terminal Control).
• b-4 (Direction Control): Set to 0 (Consistent with Set Direction) or 1 (Opposite to Set Direction).

External Potentiometer Speed Control

1. Wiring:

• VI1 (External Voltage Input 1): Connect to the output terminal of the external potentiometer.

1. Parameter Settings:

• b-1 (Frequency Input Channel Selection): Set to 2 (External Voltage Signal 1).
• L-34 (VI1 Input Lower Limit Voltage): Set to the minimum output voltage of the external potentiometer.
• L-35 (VI1 Input Upper Limit Voltage): Set to the maximum output voltage of the external potentiometer.
• L-36 (VI1 Input Adjustment Coefficient): Set to an appropriate adjustment coefficient to match the output range of the potentiometer.

VII. Fault Codes and Troubleshooting

The CONVO Variable Frequency Drive G3/P3 Series provides detailed fault codes to help users quickly identify and resolve issues. The following are common fault codes and their troubleshooting methods:

1. E01: Overcurrent Fault

• Meaning: The output current of the frequency drive exceeds the set value.
• Troubleshooting: Check if the load is too large, and ensure that the rated current of the frequency drive matches the load.

1. E02: Overvoltage Fault

• Meaning: The input voltage of the frequency drive exceeds the set value.
• Troubleshooting: Check if the input voltage is stable, and ensure that the power supply voltage is within the allowed range of the frequency drive.

1. E03: Undervoltage Fault

• Meaning: The input voltage of the frequency drive is below the set value.
• Troubleshooting: Check if the power supply voltage is stable, and ensure that the power supply voltage is within the allowed range of the frequency drive.

1. E04: Overheating Fault

• Meaning: The internal temperature of the frequency drive exceeds the set value.
• Troubleshooting: Check the heat dissipation conditions, and ensure that there is sufficient airflow around the frequency drive.

1. E05: Overload Fault

• Meaning: The output current of the frequency drive exceeds the set value for a long time.
• Troubleshooting: Check if the load is too large, and ensure that the rated current of the frequency drive matches the load.

1. E06: Motor Overload

• Meaning: The motor overload protection is activated.
• Troubleshooting: Check if the motor is overloaded, and ensure that the rated current of the motor matches the frequency drive.

1. E07: Motor Overheating

• Meaning: The motor temperature exceeds the set value.
• Troubleshooting: Check the heat dissipation conditions of the motor, and ensure that there is sufficient airflow around the motor.

1. E08: Motor Stall

• Meaning: The motor stall protection is activated.
• Troubleshooting: Check if the motor is stalled, and ensure that the operating environment of the motor is normal.

1. E09: Motor Phase Loss

• Meaning: The motor phase loss protection is activated.
• Troubleshooting: Check if the motor wiring is correct, and ensure that the three-phase power supply of the motor is normal.

1. E10: Motor Phase Sequence Error
   • Meaning: The motor phase sequence error protection is activated.
   • Troubleshooting: Check if the motor wiring is correct, and ensure that the phase sequence of the motor is correct.

Conclusion

The CONVO Variable Frequency Drive G3/P3 Series is a powerful and easy-to-operate variable speed control device. Through this detailed introduction, users can master the operation panel functions, parameter initialization, parameter copying, password setting and removal, parameter access restrictions, external terminal control, fault codes, and troubleshooting methods of the frequency drive. It is hoped that this article will help users better utilize the CONVO Variable Frequency Drive G3/P3 Series, improving work efficiency and the reliability of the equipment.

I. Introduction to Operating Panel Functions and Initialization Settings

1. Operating Panel Function Introduction

The Convo FSCG05 series inverters come equipped with an intuitive operating panel that offers extensive functionalities for parameter setting, monitoring, and control.

2. Factory Default Initialization Settings

To restore the inverter to its factory default settings, you need to modify specific parameters. The key parameter to be set is b-11 (Parameter Initialization). Here’s how to do it:

• Parameter and Setting: b-11 = 1
• Procedure:
  1. Access the advanced parameter mode by setting b-0 = 2.
  2. Navigate to b-11 and set its value to 1.
  3. Save the setting and restart the inverter to apply the factory defaults.

3. Copying and Downloading Parameters via Operating Panel

Copying Parameters:

• Procedure for KP51B Keypad:
  1. Set the source inverter to parameter copy mode by pressing Enter, Stop, Down, Enter sequentially.
  2. Remove the keypad from the source inverter and insert it into the target inverter.
  3. Initiate the parameter download to the target inverter by pressing Enter, Stop, Down, Down sequentially.
• Procedure for KP51S Keypad (due to limited memory, parameters need to be copied in two batches):
  • For copying B and L parameters: Press Enter, Stop, Down, Down, Enter.
  • For copying H and E parameters: Press Enter, Stop, Down, Stop, Down.
  • To copy all B, L, H, and E parameters, follow the above steps for each batch.

Downloading Parameters:

• Simply reverse the above steps to download parameters from the keypad to an inverter.

II. Terminal Control for Forward/Reverse Rotation and Potentiometer Speed Regulation

Setting Parameters for Terminal Control

• Forward/Reverse Rotation Control:
  • Set b-3 to select the control mode (e.g., 1 for external terminal control with keyboard stop disabled).
  • Configure the function of terminals X1, X2, FWD, and REV via parameters like L-47 to L-53 based on your control requirements.
• Potentiometer Speed Regulation:
  • Set b-1 to 0 to use the potentiometer on the operating panel for speed control.
  • No additional parameter settings are required if using the panel potentiometer exclusively.

CONVO is a brand under Bosch Rexroth,By following these steps and adjusting the specified parameters, you can effectively control the operation of your Convo FSCG05 series inverter, whether through the operating panel, external terminals, or by restoring factory settings. This user manual guide aims to provide a comprehensive reference for smooth and efficient inverter operation.