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EJ7411 | 1-channel motion interface, BLDC motor, 48 V DC, 4.5 A, with incremental encoder · 0 次阅读

Scan Feedback

The following parameters are determined during the "Scan Feedback" operation:

  • The counting direction of the encoder: parameter 0x8008:01 "Invert feedback direction".
  • The arrangement of the Hall sensors in the motor: parameter 0x800A:12 "Phasing".
  • The commutation offset of the Hall sensors: Parameter 0x800A:13 "Hall commutation adjust".

The following parameters are checked for plausibility during the scan procedure:

  • 0x8008:13 "Encoder increments per Revolution"
  • 0x8011:13 "Motor pole pairs"

Executing the scan

CAUTION

The motor shaft moves during the scan procedure

Injuries and damage to property are possible.

  • Maintain a safe distance to the motor and the moving mechanism.
  • Ensure that the motor shaft can move freely.
1. Ensure that all other feedback parameters are set correctly.
See chapter Configuration of the feedback.
2. Make sure that all motor parameters and amplifier parameters are set correctly.
See chapter Configuration of the motor and the amplifier.
3. Write the command 0x8008 into the register 0xFB00:01 "Request".
Scan Feedback 1:
Scan feedback via command object 0xFB00:01, command 0x8008
The scan runs.
The value of register 0xFB00:02 "Status" indicates the progress of the scan.
The values 100dec … 199dec correspond to 0 ... 99 %.
4. Wait until register 0xFB00:02 "Status" has one of the following values: 0, 1, 2, 3.
Value 0: the scan has been successfully completed.
Value 3: error. See chapter Error diagnosis.