Parker Hannifin S.p.A. - Divisione S.B.C. LVD User’s Manual23units can be connected in digital lock mode using the same simulated encoder signal (RS422standard).For programming of the LVD, consult the Digital locking chapter in this manual.2.10 Simulated encoder outputConnector X4 carries the simulated encoder signals phase A, phase B and phase C (zerosignal). The signals are RS-422 format. TO program the number of pulses per revolution referto the chapter Fundamental parameters bits b42.0, b42.1 and b42.2; the default setting is 1024pulses/rev.2.11 Serial line connectionThe LVD drive serial line can be configured as RS422 or RS485 depending on theconnection. Burden resistors (150 Ω) are required in both cases. If there is more than onedrive connected on the same line, the last node must be terminated as shown below. The twoconnection types are illustrated in the following figures.TXRX/TX/RX+BR-BR0 V0 VMASTERRS-485X3 X3 X3NODE 1 NODE " n" FINAL NODE
