Parker LVD1 - Simulated Encoder Output; Serial Line Connection

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