Fagor DDS, Hardware Manual

Page: 174 / 386

   Drive modules
188
3.
DRIVE MODULES
Co
mpact d
riv
es
174
DDS
HARDWARE
Ref.1310
With external absolute feedback device
F. H3/125
Connector X3. Signals sent by an external absolute feedback device.
F. H3/126
Characteristics of the square TTL signals and 1 Vpp sinusoidal signals.
F. H3/127
Characteristics of absolute signals in an SSI communication.
A
A
DATA
DATA
CLK
GND
B
B
C L K
+ 5 V DC
+ 5_SENSE
GND_SENSE
2
1
3
4
5
6
7
8
9
10
11
12
15
14
13
12
11
10
9
8
7
6
1
2
3
4
5
BALLAST
DC BUS ON
SL2
X4
X3
CO
MPA
C
T DR
IVE
SL1
STATUS
DISPLAY
X6 X5
90° PHASE-SHIFT
V
A
V
B
V
OH
> 2.5 V
V
OL
< 0.5 V
t
90° PHASE-SHIFT
t
V
A
= V
B
: 0.6 Vpp - 1.2 Vpp
V
A
V
B
Centering < 6.5%
V
A
/ V
B
ratio: 0.8 Vpp - 1.25 Vpp
1Vpp
20 µm
N= 32 bits; T= 1µs to 10 µs; t1 > 1µs; t2= 20 µs to 35 µs.
Logic levels, according to EIA-485.
RS-485