Cognex 800-5815-1, Installation And Reference Manual

Page: 18 / 57

Installation
6
2.2 Retention Bar
The retention bar, which ships with the 1460 I/O Expansion Module, can be installed to
insure the security of the fuses and opto-isolator modules, generally in a high-vibration envi-
ronment. As shown in
Figure 2-2
, to install the retention bar, seat it over the opto-isolators
and fuses, then secure with the two retaining screws. To remove the retention bar, remove
the two retaining screws and lift the retention bar from the expansion module. The retention
bar must be removed to access the opto-isolators and fuses.
Table 2-1: Model 1460 I/O Expansion Module Component Functions
ITEM FUNCTION
In-Sight Camera
Connector Connects the I/O cable, which provides the power, trigger and I/O signals to the connected
In-Sight sensor.
RS-232 Remote
Connector Connects the Serial cable, which provides the RS-232 communications between the I/O
module and an external serial device.
Light Outputs Connects power to the Light Output cable, providing power for up to two external lighting
modules.
Camera Power
Input Power for the I/O module and camera is applied to this connection.
Light Power Input Power for the external light accessories is applied to this connection.
I/O Opto-Isolators The 1460 I/O Expansion module supports up to 10 output (8 general purpose, 2 high-
speed) and 8 input opto-isolators. These opto-isolators allow for the connection to external
devices, independent of source or sink limitations from the I/O module.
Fuses The general purpose and high-speed outputs are each protected by 2.0A fuses (field
replaceable).
NOTE:
2.0A output is
derated by 33ma/C at temperatures over 25°C.
Status LEDs Status LEDs are green when the applicable input or output is active.
Power LED I/O Module power is indicated by a Green (normal) or flashing Red (error) condition. On
initial power, the LED will flash green until connection to the In-Sight sensor is established.
Trigger LED Trigger status is indicated by Green (when active).
Light0 and Light1
LEDs Light LEDs indicate the presence of Light Output power. The LED will be green for the
duration that light power is present.
In-Sight RX/TX
LED In-Sight RX/TX LED indicates In-Sight communications status by two states: Green (TX
Active - In-Sight sensor is transmitting) and Red (RX Active - In-Sight sensor is receiving).
Serial RX/TX LED RS-232 communication status is indicated by two states: Green (TX Active - In-Sight sen-
sor is transmitting) and Red (RX Active - In-Sight sensor is receiving).
Terminal Blocks Terminal blocks are provided for external I/O, trigger, power and ground connections.
NOTE
Unless required, it is recommended to remove the retention bar in high-temperature
environments.