3.5 Terminal assignment
BU 0750 GB
Technical design subject to change
53
3.6 Incremental encoder cable colours and connection pin assignment
Function
Incremental encoder cable
colours
Assignment with encoder option
SK XU1-ENC
Assignment with PosiCon option
SK XU1-POS
15 volt supply
brown / green
X11.1.
42
VO +15V
X10.2.
42
VO +15V
0 volt gnd
white / green
X11.1.
40
GND /0V
X10.4.
40
GND /0V
Track A
brown
X11.2.
51
ENC1 A+
X10.4.
51
ENC1 A+
Track A inverse
green
X11.2.
52
ENC1 A-
X10.4.
52
ENC1 A-
Track B
grey
X11.2.
53
ENC1 B+
X10.4.
53
ENC1 B+
Track B inverse
pink
X11.2.
54
ENC1 B-
X10.4.
54
ENC1 B-
Track 0
red
--
X10.4.
55
ENC1 N+
Track 0 inverse
black
--
X10.4.
56
ENC1 N-
Cable shield
Use a large contact surface for connection with the frequency inverter housing or with the shield-
receiving angle socket
IMPORTANT
In the event of a motor being equipped differently as compared with the standard design (A.772.4),
kindly refer to the data sheet or consult the supplier.
Recommendation:
For a high operational safety in particular with long cable connections we recommend the use of a
higher supply voltage (15V / 24V) and an incremental position encoder for 10-30V supply voltage. The
signal level recorder must amount furthermore to 5V TTL.
IMPORTANT
The rotating field of the incremental encoder must correspond to that of the motor. Depending on how
the incremental encoder is fitted to the motor (possibly with the sides reversed), tracks A+ and A-
should also be exchanged when the connections are made. Alternatively, a negative number of incre-
ments should be set in parameter 301.
As far as the SK 750E is concerned, the possibility of the
encoder being assembled in a side-inverted fashion has already been taken care of
!
