Copley Controls AccelnetPlus AEV-090-14 Manual page 44

Accelnet
EZ DEVELOPMENT BOARD PRIMARY FEEDBACK CONNECTOR P1
QUAD A/B ENCODER WITH FAULT PROTECTION
Encoders with differential line-driver outputs are required (single-ended encoders are not supported) and provide incremental
position feedback via the A/B signals. The MAX3097 receiver has differential inputs with fault protections for the following conditions:
Short-circuits line-line:
Open-circuit condition:
Low differential voltage detection: This is possible with very long cable runs and a fault will occur if the
±15kV ESD protection:
Extended common-mode range:
FAULT DETECTION
Encoder
A
B
X
+5V
0V
Thermal fuse
Copley Controls, 20 Dan Road, Canton, MA 02021, USA
P/N 16-01681 Rev 15
Plus
This produces a near-zero voltage between A & /A or B & /B which is below the
differential fault threshold.
The 121Ω terminator resistor will pull the inputs together if either side (or both) is open.
This will produce the same fault condition as a short-circuit across the inputs.
differential input voltage is < 200mV.
The 3097 has protection against high-voltage discharges using the Human Body Model.
A fault occurs if the input common-mode voltage is outside of the range of -10V to +13.2V
AEV EZ DEV P1
Enc1 A
121
/Enc1 A
Enc1 B
121
/Enc1 B
1k
+5V
Enc1 X
130
/Enc1 X
1k
+5V ENC
SGND
FGND
IN5 Motemp
SGND
EZ J5 I/O
IN5
Micro
Module EtherCAT
MAX3097
R44
0
AEV J2
IN6
Encoder
Fault
MAX3362
MAX3281
MAX3362
+5V ENC
Sgnd
IN5
Tel: 781-828-8090
AEV
P1 ENCODER 1 SIGNALS
EZ-Dev Signal Pins
Enc1 A Enc A
Enc1 /A Enc /A
Enc1 B Enc B
Enc1 /B Enc /B
Enc1 X Enc X
Enc1 /X Enc /X
+5V ENC +5V 6, 17
IN5 Motemp IN5
5,16,
SGND SGND
25,26
SGND = Signal Ground
NOTE:
IN5 on the feedback connector
is connected to the drive IN5.
IN5 MOTEMP SIGNALS
EZ-Dev Signal Pins
IN5 7
P1
SGND 5, 16, 25, 26
IN5 8
J5
SGND 15, 17, 18
Fax: 781-828-6547
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