Backplane pin
Description
Enc#QuadB– , Enc#QuadB+
Data– and Data+ to drive for axis# (NY4125)
(# = 0, 1, 2, 3, 4)
EncGND
GND
Tab. 13-14:
Encoder inputs assignment
[See Note 1]
SN65HVD485
120
W
680 pF
DGND
330 pF
330 pF
A
B
EncGND
D
[See Note 3]
MAX1562
ON
Enc5V
[See Note 2]
+5V25
Dig5VIn -
NY4120 / NY4140
+5V25
Node
200
W
Enc
+
-
MAX1564
ON
Enc5V
EncGND
Enc
200
W
[See Note 3]
NY4125
100pF
+ 5V25
DGND
Node
SN65HVD485
A
B
[See Note 2]
[See Note 1]
Fig. 13-12:
Input circuit for the Rexroth MSM incremental encoder
Notes
1. Connect the NYCe 4000, a power supply or other equipment on a metal
frame or mounting base and make sure there is a galvanic contact.
2. When switching off the power of the encoder the software behavior is as
follows.
●
A power loss error is generated on the axis.
●
The axis will go to the error state and be set 'not homed'.
To recover from this situation, you must switch on the encoder power,
reset and home the axis.
3. EncGND is connected to the internal system ground, which is ground
MCU, drive logic, analog I/O, and host PC if the MCU is NY4110 and an
IEEE 1394b cable is used.
For proper use, this ground may not be connected to motor or digital I/O
ground.
For connection of Rexroth MSM incremental encoders to the NYCe 4000,
use encoder cable RKG0040, order number R911328668, see
"MSM encoder cable layout" on page 175
. These cables are custom made to the length
specified.
174/233
Encoders
NYCe 4000 Multi-axis motion control system Hardware Sys‐
tem Manual
Bosch Rexroth AG R911337671_Edition 18