NORD Drivesystems BU0505 - Manual (Page 61)

2 Assembly and installation
BU 0505 GB-1013 61
Sinus encoder (SIN/COS encoder)
The use or function of sine encoders is comparable with that for incremental encoders. However, the
encoder provides sine wave signals instead of digital pulses.
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 Sin/Cos encoder*
Assignment for SK 54xE
Terminal block X5 or X6
10-30V supply brown
42(/44 /49)
15V (/24V /12V)
0V supply white 40 GND/0V
Track A green 51 ENC A+
Track A inverse yellow 52 ENC A-
Track B grey 53 ENC B+
Track B inverse pink 54 ENC B-
Cable shield connected to a large area of the frequency inverter housing or shielding angle
* E.g. Kübler 5824
Table 22: Colour and contact assignment for SIN/COS encoders
Function Signal designation Signal voltage
Sine signal Sin max. 5V U
ss
Cosine signal Cos max. 5V U
ss
Table 23: Signal details for SIN/COS encoders
Pos : 82 /Anl eitungen/ Elektroni k/FU und Start er/ 2. M ont age und Ins tall ati on/ 2. 11 F arb- und Kontaktbel egung für Dr ehg eber- Hiperf ac e G eber [SK 54xE] @ 1\ mod_1331216123668_388. doc x @ 17902 @ 5 @ 1
Hiperface encoder
Hiperface is a mixture of incremental encoder and absolute encoder and combines the advantages of
both encoder types. The absolute value is initially only formed when the device is switched on and is
communicated by the RS485 specification bus parameter interface to the external counter in the
controller, which then continues counting incrementally from this absolute value using the analog
sine/cosine signal. During operation the counted position is continuously compared with the measured
absolute position of the encoder.
Hiperface encoders are suitable for positioning in combination with servo mode.
The requirements for the analog signal are shown in the following table. It must be noted that the
tolerances in the voltages affect the precision of the determined position.
The supply voltage for the encoder is 7-12V. An external source or the internal 12V voltage can be
used as the voltage supply.