Absolute value encoder
Absolute value encoders can detect the speed, the rotor position, and the machine position
with a very high resolution. They are used for the positioning of dynamic applications and do
not require homing.
The digital absolute value encoder AM20-8V-D for one-cable technology is
possible with the following motors:
m850-S120/S3960
m850-S120/M3960
m850-S120/L3960
m850-S140/S3240
m850-S140/M3240
m850-S190/S3000
Feedback type
Digital absolute value
SinCos absolute value
Feedback
AM20-8V-D
AM128-8V-H
AM128-8V-K2
Speed-dependent safety
functions
No
No
Yes
Encoder type
Multi-turn
Multi-turn
Multi-turn
Resolution
20 bits
-
-
Pulses
-
128
128
Output signals
-
1 Vss
1 Vss
Interfaces
Digital
Hiperface
Hiperface
Absolute revolution
4096
4096
4096
Resolution (angle)
'
0.02
0.40
0.40
Accuracy
'
-
-1.3 ... 1.3
-1.3 ... 1.3
Position value error limit
Integral nonlinearity
'
1
-
-
System accuracy
'
1.7
-
-
Min. DC input voltage
V
-
7.0
7.0
Max. DC input voltage
V
-
12.0
12.0
Max. speed
rpm
9000
9000
9000
Max. current consumption
A
0.15
0.060
0.060
Limit frequency
kHz
-
200
200
Speed-dependent safety functions
Feedback
AM128-8V-K2
Max. permissible angular acceleration
α
rad/s
2
240000
Functional safety
IEC 61508
SIL2
EN 13849-1
Up to Performance Level d
Product extensions
Feedback
Absolute value encoder
123
Summary of Contents for g500-B
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