Incremental encoders are valued for their simple design and ability to measure movement speed. However, they cannot determine the exact position after a power interruption. Each time power is lost and restored, the device must return to its zero position to ensure accurate positioning.
This limitation makes incremental encoders unsuitable for applications where returning to the reference position is impossible. Additionally, factors like dirt, electrical interference, or improper operating conditions can cause missed pulses, leading to errors in pulse counting.