In addition to the frequency value, the module provides an acceleration value (ACC) and a jerk value (JRK) at the same sampling rate of the frequency meter value:
1
Sampling period
2
Input signal
3
Integration period
FM
Frequency meter value in pulses/1000 seconds
ACC
Acceleration value (in pulses/s2) is the rate of change of the refreshed frequency meter value.
JRK
Jerk value (in 1000*pulses/s3) is the rate of change of the refreshed acceleration value.
Acceleration and Deceleration Maximum Values
The maximum acceleration value is 32767 pulses/s2.
NOTE: For acceleration values exceeding the maximum value, the module returns 32767 pulses/s2.
To illustrate, consider the example of turbo machinery which starting period takes 10 seconds to reach the maximum velocity (32000 pulses per second). During the ramp up, the module will return the acceleration value 3200 pulses/s2.
The maximum deceleration value is -32767 pulses/s2.
NOTE: For deceleration values exceeding the maximum value, the module returns -32767 pulses/s2.
