NORD Drivesystems BU0750 - Manual (Page 50)

NORDAC SK 750E Manual
50 Subject to technical amendments BU 0750 GB-3311
3.4.3 Special Extension Encoder I/O
(SK XU1-ENC, Part No.: 278200120)
The special extension (EXtension Unit) encoder I/O offers the
possibility of connecting an incremental encoder with a TTL signal
level. The incremental encoder must be mounted directly on the
motor shaft.
This accessory enables highly accurate speed control from standstill
to double the rated speed.
As this special extension provides the best control of the load, this
option is especially recommended for lifting applications.
Connection details can also be found in Section 3.6 "Colour coding
and contact assignments for incremental encoders".
Maximum connection cross-section of the control leads:
Connector Functions Maximum cross-section Parameter
X11.1 Power supply and digital Input 1.5 mm
2
P300 ... P330
X11.2 Incremental encoder 1.5 mm 2
NOTE: All control voltages are based on a common reference potential!
Potentials AGND /0V and GND /0V are internally linked in the device.
Max. permitted current loading from all current sources = 300mA
Floating contact or
PLC output: 2,5 ... 33V
Digital input 13 (P330)
Voltage supply:
5V / 15V,

max. 300mA
Incremental encoder input:
TTL, RS 422,
500 – 8192 impulses/revolution
X
11
.1
X
11
.2
42 VO +15V
41 VO +5V
40 GND /0V
33 DIG IN 13
51 ENC1 A+
52 ENC1 A-
53 ENC1 B+
54 ENC1 B-