NORD Drivesystems BU0700 - Manual (Page 50)

NORDAC SK 700E Operating Manual
50 Subject to technical alterations BU 0700 GB-1411
3.3 Special extension units
(EXtension Unit, Option)
Special extension units are very similar to the
customer units; they are however designed for
other functions and can only be placed in the lower
slots. After insertion, they are automatically
identified by the frequency inverter.
Cable connection is via direct plug-in clip
connectors with spring terminals. This makes the
connection of devices very easy and convenient.
Special extension unit
SK XU1-...
Description Data
Encoder
SK XU1-ENC
For highly accurate speed control from standstill to
double the rated speed
1 x digital input
1 x encoder input, RS 422
up to 250kHz
PosiCon
SK XU1-POS
Programmable positions are reached and
maintained by means of path calculations. The
actual value acquisition is with an incremental or
absolute value encoder
Up to 252 positions
6 x digital inputs
2 x multifunction relays
1 x SSI interface, RS 422
1 x encoder input, RS 422
up to 250kHz
NOTE
, for 5V / 15V power supplies
The customer units and special extension units currently have various power supplies (5V / 15V) that can
be used externally. The maximum permissible external load current is 300mA. This can be taken from
one or more power supplies. The total current must however not exceed 300mA.
All control voltages are based on a common reference potential!
Potentials AGND /0V und GND /0V are internally linked in the device.