www.baldormotion.comFeedback 4-7MN19434.1.2 BiSS interfaceThe BiSS (Bi-directional Serial Synchronous interface) is an open-source interface that can beused with many types of absolute encoder. The BiSS interface connections are made using the15-pin D-type female connector X8. Twisted pair cables must be used for the complementarysignal pairs e.g. Data+ and Data-. The overall cable shield (screen) must be connected to themetallic shell of the D-type connector. Connector X8 includes a ‘Sense’ pin, which is used todetect the voltage drop on long cable runs. This allows the MotiFlex e100 to increase the supplyvoltage on pin 12 to maintain a 5 VDC supply at the encoder (200 mA max).Pin BiSS function1 Data+2 Clock+3 (NC)4 Sense5 Sin- Note: If your cable has Sin and Cos6 Sin+Note: If your cable has Sin and Cospairs they may be connected here.However these signals are not7 Cos- However, these signals are notrequired or used by the MotiFlex e1008 Cos+required or used by the MotiFlex e100for BiSS operation.9 Data-10 Clock-11 (NC)12 +5V out13 DGND14 (NC)15 (NC)Data+Data-+5V outDGND191213102X8AbsoluteEncoderClock-Clock+Twisted pairsChassisConnect overall shieldto connector backshells.Connect internalshields to pin 13.Motor4 SenseBiSSInterfaceFigure 33 - BiSS interface cable connections18915
