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©
National Instruments Corp.
15
FP-TB-10 Operating Instructions
Figure 17.
Signal Connections for Discrete AC Output Modules
Updating Your Firmware and Software
for Use with the FP-TB-10
You may need to upgrade your FieldPoint firmware when you add
the FP-TB-10 to your FieldPoint system. To determine which
firmware you need and how to upgrade to it, use your Web browser
to go to
ni.com/info
and enter
fpmatrix
.
Isolation and Safety Guidelines
Caution
Read the following information before
attempting to connect the FP-TB-10 to any circuits that
may contain hazardous voltages.
This section describes the isolation of the FP-TB-10 and its
compliance with international safety standards. The field wiring
connections are isolated from the backplane and the inter-module
communication bus. The isolation is provided by the module,
which has optical and galvanic isolation barriers designed and
tested to protect against transient fault voltages of up to 2,500 V
rms
.
The FP-TB-10 provides
double insulation
(compliant with
IEC 61010-1) for working common-mode voltages of 250 V
rms
.
Safety standards (such as those published by UL and IEC) require
the use of double insulation between hazardous voltages and any
human-accessible parts or circuits.
Load
FP-DO-AC
xx
Snubber
Snubber
VAC
25–70 Hz
1a
1b
2a
2b