NORD Drivesystems BU0510 - Manual (Page 17)

2 Encoder connection
BU 0510 GB-3911 Subject to technical alterations 17
2.2.6 BISS encoders
(SK 540E and above)
BISS is a further development of the SSI interface, which also operates with 2 RS485 channels. With BISS
encoders, the position is communicated together with a checksum. This provides more reliable
communication than SSI.
The encoders are also available with an integrated incremental track.
The supply voltage for the encoder is 10-30V. The voltage source can be an external source or the internal
voltage (according to the frequency inverter version: 12V /15V /24V).
Function Cable colours for BISS encoders* Assignment for SK 54xE
10-30V supply brown
X5:42( /X5:44 /X6:49)
15V ( /24V /12V)
0V supply white X5:40 GND/0V
Track A black X6:51 ENC A+
Track A inverse violet X6:52 ENC A-
Track B grey/pink X6:53 ENC B+
Track B inverse red/blue X6:54 ENC B+
Clock + green X14:63 CLK +
Clock - yellow X14:64 CLK-
Data + (RS485) grey X14:65 DAT +
Data - (RS485) pink X14:66 DAT -
Cable shield connected to a large area of the frequency inverter housing or shielding angle
* E.g. Kübler 5883
Table 8: Connection assignment for BISS encoders
2.3 CANopen absolute encoders
The connection of an absolute encoder to the SK 53xE / SK 54xE is carried out via the internal CANopen
interface. As a minimum requirement, the absolute encoder to be connected must have a CAN Bus interface
with CANopen protocol. The internal CAN Bus with CANopen protocol can be used for simultaneous control
and parameterisation as well as the readout of the absolute encoder position.
The SK 53xE / SK 54xE supports CANopen absolute encoders with the communication profile DS 406. If an
absolute encoder supplied by Getriebebau Nord GmbH & Co. KG is used, automatic parameterisation of the
absolute encoder via the frequency inverter is possible. Only the CAN address and the baud rate of the
encoder still need to be set with the rotary or dip switches on the encoder. All other necessary parameters
are set by the frequency inverter via the CAN Bus in the encoder.