Parker Hannifin S.p.A. - S.B.C. Division HPD N User’s Manual
23
3.11.1. Encoder emulation
On connector X7 there are signals of encoder emulation phase A, phase B and phase C
(reference zero). The signals are RS-422 type. For the relative programming of pulses per
revolution consult the
Basic parameters chapter in this manual, bit b42.0, b42.1 and b42.2
(default = 1024 pulses/revolution).
3.12. Serial line connection
The HPD drive serial line can be configured as RS-422 or RS-485 depending on the
connection. In both cases termination resistors must be used (150
Ω). Where more than one
HPD drive is connected to the bus the final node must be terminated as shown below. The
two cases are illustrated in the following diagrams.
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