MC2300 Technical Specifications
33
I/O Chip
Pin Name and
number
QuadA1
QuadB1
QuadA2
QuadB2
QuadA3
QuadB3
QuadA4
QuadB4
Direction
Description
47
25
48
44
33
51
30
58
Input
These pins provide the A and B quadrature signals for the incremental
encoder for each axis. When the axis is moving in the positive (forward)
direction, signal A leads signal B by 90°.
The theoretical maximum encoder pulse rate is 5.1 MHz. Actual
maximum rate will vary, depending on signal noise.
NOTE
: Many encoders require a pull-up resistor on each signal to
establish a proper high signal. Check your encoder’s electrical
specifications).
For MC2340 all 8 pins are valid. For MC2320 only the first four pins
(axes 1 and 2) are valid.
WARNING! If a valid axis pin is not used, its signal must be
tied high.
Invalid axis pins may be left unconnected.
These pins provide the Index quadrature signals for the incremental
encoders. A valid index pulse is recognized by the chip set when
~Index
,
A
, and
B
are all
low
.
For MC2340 all 4 pins are valid. For MC2320 only
~Index1
and
~Index2
are valid. For MC2310 only
~Index1
is valid.
~Index1
~Index2
~Index3
~Index4
49
93
83
28
Input
WARNING! If a valid axis pin is not used, its signal must be
tied high.
Invalid axis pins may be left unconnected.
These pins provide the Home signals, general-purpose inputs to the
position-capture mechanism. A valid Home signal is recognized by the
chipset when
~Home
n
goes
low
. These signals are similar to
~Index
, but are
not gated by the A and B encoder channels.
For MC2340 all 4 pins are valid. For MC2320 only
~Home1
and
~Home2
are valid. For MC2310 only
~Home1
is valid.
~Home1
~Home2
~Home3
~Home4
82
29
88
45
Input
WARNING! If a valid axis pin is not used, its signal must be
tied high.
Invalid axis pins may be left unconnected.
All of these pins must be connected to the I/O chip’s digital supply
voltage, which should be in the range 4.75 to 5.25 V.
I/O chip ground. All of these pins must be connected to the digital
power supply return.
These pins may be left unconnected (floating).
Vcc
16, 17, 40, 65, 66, 67, 90
GND
4, 9, 22, 34, 46, 57, 64, 72,
84, 96
26, 27, 55, 56, 59-61,
unassigned