Installation guide

22 Specifications
5.5.4 – Axis I/O Connectors
The Axis I/O connectors provides a means of interfacing
4 dedicated digital signals and an analog input for each
axis. The dedicated inputs are opto-isolated and can be
selected as sinking or sourcing on the axis card. The
dedicated inputs are labeled +LIM, -LIM, EVNT1 and
EVNT2. The two limit inputs can be configured as hard
limits or general purpose inputs. The two event inputs
are used for mechanical home and mark registration
triggers. The COM and 24V terminals have been pro-
vided as return paths for the optical isolator circuits. The
COM terminal is used for sinking and the +24V terminal
is used for sourcing. The analog input terminals, IN+
and IN-, can be configured as single ended or differen-
tial input. If configured as single ended these signal be-
come independent inputs with the AGND signal as a
signal common. The voltage range for the analog input
is ±10 volts. The 10V, AGND and SHLD terminals are
intended to be used with the analog inputs. The 10V
terminal provides a +10 volt reference output signal for
the analog inputs.
Signal Name Description Electrical Specification
COM Return for input sinking mode. Not Applicable
24V Return for input sourcing mode. Not Applicable
SHLD Connection to Shield . Not applicable
+LIM
Positive travel limit or general pur-
pose input.
Sink mode: 10.5 ma @ 0v, 0v to +3v on state, 24v off state.
Source mode: 10.5 ma @ 24v, 4.5 ma @ 12v, +12v to +24v on
state, 0v to +3v off state.
-LIM
Negative travel limit or general
purpose input.
Sink mode: 10.5 ma @ 0v, 0v to +3v on state, 24v off state.
Source mode: 10.5 ma @ 24v, 4.5 ma @ 12v, +12v to +24v on
state, 0v to +3v off state.
EVNT1
Home, mark registration or general
purpose input.
Sink mode: 10.5 ma @ 0v, 0v to +3v on state, 24v off state.
Source mode: 10.5 ma @ 24v, 4.5 ma @ 12v, +12v to +24v on
state, 0v to +3v off state.
EVNT2
Home, mark registration or general
purpose input.
Sink mode: 10.5 ma @ 0v, 0v to +3v on state, 24v off state.
Source mode: 10.5 ma @ 24v, 4.5 ma @ 12v, +12v to +24v on
state, 0v to +3v off state.
10V +10 volt reference
10 ± .07 volt @ 20 ma maximum load.
AGND Analog Ground Not applicable
IN+
Analog non-inverting differential
or single ended input
12 bit resolution, 1950 samples/sec, ± 10 volt range, 20K ohms
input impedance, ±0.1 volt full scale accuracy, ±0.035 volt zero
input accuracy.
IN-
Analog inverting differential or
single ended input
12 bit resolution, 1950 samples/sec, ± 10 volt range, 20K ohms
input impedance, ±0.1 volt full scale accuracy, ±0.035 volt zero
input accuracy.
+ LIM
EVNT1
EVNT2
10V
IN -
IN +
SHLD
COM
+ LIM
- LIM
EVNT1
EVNT2
AGND
IN +
IN -
SHLD
24V
- LIM
+24V
24V COM
source
sink
2K
5K
15K
15K
5K
12 bit
A/D
1 of 8 identical circuits
5K
5K
15K
15K
+10V
Axis I/O Equivalent Circuit
Dual Axis Interface
AXIS I/OANALOG DRIVE
COM
+ LIM
- LIM
EVNT1
EVNT2
AGND
IN +
ANALOG
Dual Axis Interface
Card
IN -
SHLD
ANALOG
INPUTS
I/O set for Sinking Mode
(Factory setting)
OUT
AGND
EN +
EN -
RDY +
RDY -
ANALOG
ANALOG
OUTPUTS
Can Only Be Used If
Axis is defined as a
Stepper Drive
This connection is only on the
"B" connector side. This common
is used for both sides A and B.
+24
10V
+ LIM
- LIM
EVNT1
EVNT2
IN +
IN -
SHLD
OUT
AGND
EN +
EN -
RDY +
RDY -
This connection is only on the
"A" connector side. This 24 volts
is used for both sides A and B.