Support

This method cannot clear multi-turn positions. It can be used to clear accumulated absolute position feedback, accumulated commands R2.05 and R2.04. To clear multi-turn positions, use P0.71.

 After enabling the multi-turn mode, the customer expects the R0.25 value to continue increasing beyond 32,767 revolutions, but in practice it does not increase continuously. 

Solution:

R0.25 represents the actual encoder's multi-turn value. This 16-bit value is hard-coded and cannot be modified. However, with the multi-turn mode activated, the cumulative position feedback value stored in R2.05 persists even after power loss following a multi-turn overflow. This ensures the absolute position is preserved and not lost during power failure."

 Excessive PDO count in the PLC has caused an overly high task load rate. Deleting unnecessary PDOs will resolve the issue.

 When P11.01 is enabled and a transient power-off occurs, bit 9 is set to 1 when the bus voltage is lower than the following values: 460VDC for 380VAC models; 240VDC for 220VAC models.

What are the differences and triggering conditions between P11.01 (Frequency drop at transient power-off)   and P11.16 (Automatic frequency-reduction during voltage drop) on GD28 drive?

Solution:

When P11.01 is enabled, in the event of a short-term bus voltage drop, the VFD will reduce its output frequency to brake the motor, in motor brake status, it will generate energy to maintain the bus voltage.

When P11.16 is enabled, when the bus voltage decreases, the VFD's output frequency will decrease synchronously. This applies to both VF and vector modes.

For the GD350A, versions 6.09/6.10 and 3.09/3.1 can be used directly with EtherCAT communication expansion cards without requiring the burning of dedicated communication software.

Control boards running version 6.09 or higher are different from those running 6.08 or lower. Control boards with 6.08 or earlier cannot be flashed with 6.09 or 6.10 software. Similarly, control boards running 6.09 or higher cannot be flashed with software versions 6.08 or earlier.

GD350 supports software programming via RS485 in software versions 6.00 and above.

Use the polling method to trigger the ModbusRTU communication read and write instructions. For read and write instructions, use the rising edge trigger (↑) to avoid continuous reading and writing occupying the channel.