YASKAWA MP2600iec, Hardware Manual

Page: 17 / 42

5.3 External Encoder Interface
15
5.3 External Encoder Interface
Two differential (RS-422 compatible) inputs are provided for encoder
phases A and B, and one position latch input is provided for voltage
levels: 5V, 12V, or 24V.
Encoder Input Circuit
Item Specification
Number of
channels
One channel (Phase A, Phase B, Index pulse, or SSI clock)
Input circuit
Phase A & B: 5V differential input (RS-422 compatible), non-
insulated. Maximum frequency 4MHz.
Index pulse: 5V/12V/24V photo coupler input. Maximum frequency
500kHz. This signal is used for external encoder latch.
Counter modes
Quadrature, pulse and direction, up/down
Latch input
Latch on index pulse or DI_01 digital input.
Hardware latency: 5

s or less (index pulse)
R
4
5
+5V
0V
Phase A
Pulse generator
R
29
30
+5V
0V
Phase B
6
PB+
PB-
PA+
PA-
GND
35
PIL
R
9
PILC(5V)
34
10
R
R
+5V
R
GND
31
PILC(12V)
PILC(24V)
CN13 Connector