AC Brushless Servo Drive System Manual Ver: 0002
ACa - 26 / 32
Preliminary
Encoder feedback connection.
The encoder signals must be taken to the ENCODER INPUT of the ACS.
The ACS amplifies these signals and it is able to divide its frequency. The dividing factor comes
from the B3-B0 dip-switches. The ACS drive offers these signal through the ENCODER OUTPUT
connector.
The encoder must turn with the motor shaft and it must not be installed anywhere else in the
transmission chain. The FXM's encoder outputs 2500 pulses per turn of 5V incremental signals.
Fagor supplies these full connections (cable + connectors), SEC and IEC.
(HD,Sub-D,F15)
1
5
11
15
(HD,Sub-D,M15)
1
5
11
15
Ready Made Cable
IEC- 5/10/15/20
7 5
4
3
2
1
6
5
12
11
2
1
7
8
13
A
*A
B
*B
Z
*Z
1
2
3
4
5
6
7
8
11
0 V
(HD, Sub-D, F15)
Ready Made Cable
SEC 1/3/5/10/15/20
1
2
3
4
5
6
7
8
11
(Sub-D, M15)
8
1
15
9
(Sub-D, M15)
4x2x0,14+2x0,5 Cable
A
*A
B
*B
Z
*Z
+5 Vdc
W
Tp
V
1
2
3
4
5
6
7
8
11
10
15
12
13
14
9
GND:Tp
U
*U
*V
*W
14
15
16
9
4
3
11
10
9
8
6
12
13
14
15
16
17
10
(HD,Sub-D,M15)
IOC-17
IOC-17
To Drive
To Drive
To Motor
To Control
Front view
Green
Yellow
Blue
Purple
Grey
Pink
Brown
White
Black
(Length in meters,
connectors included)
Green
Yellow
Blue
Black
Grey
Pink
Brown
Red
White
Grey/Pink
Purple
Yellow/Brown
White/Green
Red/Blue
White/Yellow
Brown/Green
B3
B2
B1
B0
(MSB)
(LSB)
B
A
Z
t
B3 B2 B1 B0
0 0 0 1
0 0 1 0
0 0 1 1
0 1 0 0
0 1 0 1
0 1 1 0
0 1 1 1
1 0 0 0
1 0 0 1
1 0 1 0
1 0 1 1
1 1 0 0
1 1 0 1
1 1 1 0
1 1 1 1
2/2
2/3
2/4
2/5
2/6
2/7
2/8
2/9
2/10
2/11
2/12
2/13
2/14
2/15
2/16
K
= ON (1)
RATIO
SELECT
Example:
ENCODER
INPUT
B
A
Z
t
ENCODER
OUTPUT
B3
B2
B1
B0
K = 2/4
0
0
1
1
2500 ppt
1250 ppt
= OFF (0)
2500
1667
1250
1000
833
714
625
555
500
454
417
385
357
333
312
ppt out
