Acceleration

The acceleration calculation determines the average acceleration in the time range set via the filter time acceleration parameter (8708.2). The quantization error decreases with increasing filter time. In return, the response time increases in accordance with the filter time.

Quantization error_a in min-1 s =  

(120 s x min-1) × scaling_factor_denominator / (scaling_factor_numerator x (parameterized_filter_time)2)

(15 s x min-1) × scaling_factor_denominator / (scaling_factor_numerator x parameterized_filter_time)

Parameters involved (CSA31A):

  • Scaling_factor_numerator:
    • 8381.2 (encoder 1)
    • 8382.2 (encoder 2)
  • Scaling_factor_denominator:
    • 8381.3 (encoder 1)
    • 8382.3 (encoder 2)
  • Parameterized_filter_time:
    • 8708.2 (encoder 1)
    • 8713.2 (encoder 2)

Parameters involved (CSS..A):

  • Scaling_factor_numerator (= PPR count of the selected encoder):
    • 8708.1 (encoder 1)
  • Scaling_factor_denominator: 1
  • The scaling factor is fixed based on the configured encoder type.
  • Parameterized_filter_time:
    • 8708.3 (encoder 1)

In addition to the process-related quantization error, there is an additional actual acceleration error of 0.5%:

Error_a_SinCos = Actual acceleration x 0.5% + Quantization error_a