Page 30 · 5400 Series TECSource User’s Manual
Interlock
In additional to the digital inputs, which can be programmed as an additional
interlock function, the 5400 has a dedicated interlock input on its own dedicated
connector. The Interlock provides a separate, fully isolated ground to allow for
maximum wiring flexibility in your application. Like the digital inputs, it will also
be pulled up to an ‘On’ (or ‘Open’) state if left disconnected.
The interlock input can only be used for the interlock function, but the polarity
can be reversed using the Digital I/O Menu » Intlk Err menu setting. When this
is set to If Open, the 5400 will generate an interlock error if the output is
energized and the interlock input is open. Similarly, when this is set to If Closed,
the 5400 will generate an interlock error if the output is energized and the
interlock input is closed. To close the interlock, simply apply a shorting jumper
across the two pins of the interlock connector. A 2-pin plug is supplied with a
shorting jumper already installed.
Using the Interlock
The TECSource has a dedicated interlock input that can be used to disable the
TEC output. Via the Digital I/O » Intlk Err menu entry, the interlock can be used
to generate an error and shutdown the output if the interlock input is open (Is
Open) or shorted (If Closed).
The Interlock input is an electrically isolated input allowing for safe integration
into both mechanical-type switch closures as well as electronic switches. It has a
pull-up resistor, so if left disconnected, the interlock status will be “on.” In
addition to the dedicated Interlock input, the digital inputs can also be
configured for interlock operation. See the Interlock section in Using the Auxiliary
Interface, above.
Selecting the Fixture
The TECSource has integrated support for many of the mounts offered by
Arroyo Instruments, such as the 286 TECMount. To simplify operation when
using these mounts, you can change the Mount setting in the menu to the
mount type you are using. By selecting a mount, the current limit, temperature
limits, default gain, and sensor settings are automatically adjusted to values
appropriate to the mount, and menu settings limited to the capabilities of the
mount. For example, when the 286 is selected, the Sensor setting is hidden
from the menu, and the current limit is adjusted to the mount’s rated limit to
prevent damage to the mount’s Peltier cooler.
Adjusting the Mount setting to User Defined removes all software limits, allowing
unrestricted operation of the TECSource.
To Next Page
Loading...