Error in the of a which is below the response threshold of the continuously adjustable valve.
Normally, less than 5% of the valve current is needed to bring the speed of a closed circuit position control system to zero or to compensate for a disturbing force. Therefore, the positioning error is normally limited to a maximum of:
at v max = speed when the continuously adjustable valve is 100 % open.
The positioning error therefore gets smaller as the K v-Factor gets larger.