Fagor DDS Series Hardware Manual page 129

W i t h ex t e r n a l a b s o l u t e f e e d b a c k d ev i c e
15 5
10
14 4
9
13 3
8
12
2
7
11 1
6
F. H3/66
X3 connector. Signals sent by an external absolute feedback device.
90° PHASE-SHIFT V
OH
V
OL
V
A
V
B
F. H3/67
Characteristics of the square TTL signals and 1 Vpp sinusoidal signals.
RS-485
N=32 bits; T= 1µs to 10 µs; t1 > 1µs; t2= 20 µs to 35 µs
Logic levels, according to EIA-485
F. H3/68
Characteristics of the SSI signals.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
> 2.5 V
90° PHASE-SHIFT
< 0.5 V
V
A
V
B
20 µm
t
V = V : 0.6 Vpp - 1.2 Vpp
A B
Centering < 6.5%
V / V ratio: 0.8 Vpp - 1.25 Vpp
A B
  Drives
A
A
B
B
I0/DATA
I0/DATA
+ 485/CLK
- 4 8 5 / C L K
+ 5 V DC
+ 5 V DC
·SENSOR·
GND
GND
·SENSOR·
N. C.
+ 8 V DC
CHASSIS
1Vpp
t
HARDWARE
3.
DDS
Ref.1912
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