Encoder Inputs And Encoder Power Supply - Bosch rexroth NYCe 4000 Hardware Manual

NYCe 4000 Multi-axis motion control system Hardware Sys‐
tem Manual
8.13

Encoder Inputs and Encoder Power Supply

5 Volt input signals
Application
signal
Gnd
totem open
switch
pole collector
RS485 differential input signals
Application
RS485 output
Gnd
Fig. 8-15: Input circuit of the digital inputs and 2 connection examples
Notes
1. Connect the NYCe 4000, power supplies or other equipment on a metal
frame or mounting base and make sure there is a galvanic contact.
2. EncVref and EncGND are allowed to be used.
Follow these cabling instructions:
● Always use a shielded cable.
● The shielding on the NYCe 4000 side of the cable must be connected to
Shield (house connector).
● If the equipment on the application side is metal, connect the shield to
the equipment housing.
For proper use, this ground may not be connected to motor or
digital I/O ground.
The following encoder types can be used with the NY4120:
● Quadrature encoder
● Analog inputs
● Rexroth MSM incremental or absolute position encoder
● Sanyo Denki absolute position encoder
● EnDat2.2 encoder
For SinCos based encoders the NY4199 SinCos Option module is required.
This module is connected to the drive module and contains hardware to
process the SinCos signals. The SinCos based encoders supported by the
NY4199 SinCos Option module are:
● SinCos
● EnDat2.1
● Hiperface
The +5 Volt Hall sensors of a BLDC motor are connected to the +5 Volt
digital inputs (Dig5VIn0a, Dig5VIn0b, Dig5VIn0c for axis0 and Dig5VIn1a,
Dig5VIn1b, Dig5VIn1c for axis1). The digital encoders (Rexroth MSM
NY4120 and NY4120/10: PWM Drive Module
Node
Enc5V
Node
+
Dig5VIn
-
Dig5VIn
+
Dig5VIn
EncVref
EncGND
120 W
[See Note 2]
680 pF
-
Dig5VIn
Node
EncVref
+
Dig5VIn
EncGND
-
Dig5VIn
EncVref
[See Note 1]
EncGND
[See Note 2]
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Enc5V
2,2 kW
SN65HVD485
330 pF
A
B
330 pF
DGND