Copley Controls Accelnet Plus AEV-090-14 User Manual page 51

Accelnet Plus Micro Modules User Guide
ENDAT ABSOLUTE ENCODER
The EnDat interface is a Heidenhain
interface that is similar to SSI in the
use of clock and data signals, but which
also supports analog Sin/Cos channels
from the same encoder. The number of
position data bits is programmable as is
the use of Sin/Cos channels. Use of
Sin/Cos incremental signals is optional
in the EnDat specification.
ENDAT SIGNALS
EnDAT Signal
Clk ENCX1
/Clk /ENCX1
Data ENCA1
/Data /ENCA1
Sin(+) * SIN1+
Sin(-) * SIN1-
Cos(+) * COS1+
Cos(-) * COS1-
+5V +5VENC
* Sin/Cos optional with EnDat 2.2
or any 1 Mbit or faster Endat
Sin/Cos required if EnDat 2.1 < 1 Mbit
ABSOLUTE-A ENCODER
The Absolute A interface is a serial, half-duplex type that is electrically the same as RS-485.
Note the battery which must be connected. Without it, the encoder will produce a fault condition.
ABS-A SIGNALS
Abs-A Signal J2 Pins
SD+ ENCA1
SD- /ENCA1
+5V +5VENC 57,58
• Absolute A
• Tamagawa Absolute A
• Panasonic Absolute A Format
• Sanyo Denki Absolute A
*Battery optional
Note: Single (outer) shields should be connected at the drive end. The inner shield is optional for
digital encoders and should only be connected to Signal Ground on the drive.
Copley Controls
J2 Pins
47
48
43
44
36
35
38
37
57,58
Absolute A Encoder
43
44
SD
D
C m d
M A 3 3 6 2
USE PC
Clk
C lk
Clk
Dat
Data
Dat
Sin( )
sin
Sin( )
Cos( )
cos
Cos( )
5V
0V
J2 Sgnd Pins (APV)
3,4,18,31,32,33,34,42,49,50,59,60 (19~24)
USE PC
5V
1.2k
SD
220
1 2 1
SD
1.2k
att
att
5V
V
0V
V
16-01687 Rev 03
OA D
G 2 AEV, APV
1k
5V
C lk
A
1 3 0
C lk
1k
Data
A
1 2 1
Data
Sin( )
121
Sin( )
C os( )
121
C os( )
5 V O ut 5 0 0 mA
SG N D
OA D
2 AEV, APV
G
D ata
D ata
5 V
SG N D
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C lk
D ata
S in
C os
C m d
D
SD