NORD Drivesystems BU0210 - Manual (Page 10)

SK 2x5E with "PosiCon Functionality"
10 Subject to technical amendments BU 0210 GB
2 Encoder connections
2.1 Incremental encoder connection
The incremental encoder connection is an input for a type with two tracks and an HTL-compatible signals. The
supply voltage for the incremental encoder is 24V.
Note
For devices with an integrated AS interface the maximum current consumption of the device is limited to
290mA. The HTL incremental encoder may therefore require an external power supply.
The pulse number per rotation can be between 500 and 8192 increments. It is set via parameter P301
"Incremental encoder pulse number" in the menu group "Control parameters". For cable lengths > 20 m and
motor speeds above 1500 min
-1 the encoder should not have more than 1024 pulses/revolution.
For longer cable lengths the cable cross-section must be selected large enough so that the voltage drop in the
cable is not too great. This particularly affects the supply cable, in which the cross-section can be increased by
connecting several conductors in parallel.
2.1.1 Colour and contact assignments for the incremental encoders
Function Cable colours for incremental encoders Assignment for SK 2x5E
24V supply brown / green 44 VO +24V
0V supply white / green 40 DGND
Track A brown 22 ENC A+
Track A inverse green --
Track B grey 23 ENC B+
Track B inverse pink --
Track 0 red --
Track 0 inverse black --
Cable shield via large-area earthing using the EMC cable connector
NOTE If there are deviations from the standard equipment (24V encoder, HTL) for the motors,
please note the accompanying data sheet or consult your supplier.
The external 24V supply is used as the power supply.
ATTENTION
The rotation of the incremental encoder must correspond to that of the motor. Therefore, depending
on the rotation direction of the encoder to the motor (possibly reversed), a positive or negative pulse
number must be set in parameter P301 "Incremental encoder pulse number".
Control terminal block: