Node
120
W
+5V25
LTC1519
EN
To cable alarm detection
Enc
+
-
MAX1562
ON
Enc5V
EncVref
EncGND
100 nF
10
W
REF3120
+ 5V25
Enc
270
W
[See Note 1]
[See Note 2]
[See Note 3]
100 nF
Node
200
W
+5V25
LTC1519
EN
To cable alarm detection
(on QuadA and QuadB only)
Enc
+
-
MAX1564
ON
Enc5V
EncVref
EncGND
100 nF
10
W
REF3120
Enc
200
W
[See Note 1]
[See Note 2]
[See Note 3]
100 nF
NY4120 / NY4130 / NY4140
NY4125
100pF
+ 5V25
DGND
Fig. 13-8:
Input circuit for the encoder signals QuadA, QuadB and Index
Notes
1. When switching off the power of the encoder the software behavior is as
follows.
●
A power loss error may be generated on the axis.
●
The axis may go to the error state and set 'not homed'. If power to
the encoder is switched off and both quadrature signals are "high",
the axis goes to the error state and is set 'not homed'. If power to
the encoder is switched off and both quadrature signals are "low",
the axis remains in its current state.
To recover from this situation, you must switch on the encoder power,
reset and home the axis.
2. 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.
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.
4. If necessary, depending on the type of encoder, add a pull up resistor,
see
fig. 13-9 "Examples of correct connections" on page 170
the datasheet of the encoder).
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.
Please study the datasheet of the encoder to find out the correct way to
connect.
fig. 13-9 "Examples of correct connections" on page 170
shows
some examples.
NYCe 4000 Multi-axis motion control system Hardware Sys‐
tem Manual
169/233
Encoders
R911337671_Edition 18 Bosch Rexroth AG
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