Absolute shaft encoder Shaft encoder that transmits unique coded data for each increment.
AC [~] Alternating current
Accuracy The difference between the actual and measured position.
Actual value see count
Alarm signal Serves to monitor the shaft encoder for malfunctions, such as glass breakage, fouling, short circuit, short circuit of signal line, and supply voltage too low.
Amplitude regulation Current or voltage amplitude is constant through regulation
Analogue signal A signal whose level alters continuously.
ASIC Application specific integrated circuit
Automatic repetition see reset modes; automatic reset
Auto-reset see reset modes; automatic reset
Axial loading Maximum load on the shaft encoder's shaft in the axial direction