Lenze EVS9322EP User Manual

Function library
Positioning control
3.4.5 Absolute value encoder
3−41
l
EDSVS9332P−EXT DE 2.0
Example for the adaptation of the encoder resolution:
Gearbox between encoder and drive i = 30
Effective wheel diameter d = 50 mm
Position resolution of the measuring system A
meas
= 8 inc/mm
Internal position resolution (fix) A
internal
= 65536 inc/rev
Position resolution of the measuring system (with regard to motor side):
Ax
mess
+
(
A
mess
@ d @
)
i
+
ǒ
8incńmm @ 50mm @ 3, 14
Ǔ
30
p
Ax
mess
+ 41, 87incńrev
Adaptation factor for CONVPHPH2:
C0473ń4
C0473ń5
+
A
intern
Ax
mess
+
65536incńrev
41, 87incńrev
C0473ń4
C0473ń5
+
1565
1
l Read the absolute value at POS−ABS−IN under consideration of the setpoint polarity (C1206)
and the actual value polarity (C1208).
l The actual home position" (C1220/8) is then added and the actual home offset" (C1220/7) is
subtracted.
l The actual home position" is set equal to C1227 if POS−ABS−SET = HIGH during initialisation
(switch on).
Tip!
The display values under C1220/5 and C1221/5 only correspond to the absolute value of the encoder
read when using the absolute value encoder through X8!

Lenze EVS9322EP Specifications

General

Brand	Lenze
Model	EVS9322EP
Category	Controller
Language	English