FP-DIO-550 and cFP-DIO-550
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Status Indicators
The [c]FP-DIO-550 has two green status LEDs,
POWER
and
READY
. After you insert the FP-DIO-550 into a terminal base or
the cFP-DIO-550 into a backplane and apply power to the
connected network module, the green
POWER
indicator lights
and the [c]FP-DIO-550 informs the network module of its
presence. When the network module recognizes the
[c]FP-DIO-550, it sends initial configuration information to the
[c]FP-DIO-550. After the [c]FP-DIO-550 receives this initial
information, the green
READY
indicator lights and the module
is in normal operating mode.
In addition to the green
POWER
and
READY
indicators, each
channel has a numbered green status indicator that lights when the
channel is in the ON state.
Isolation and Safety Guidelines
Caution
Read the following information before
attempting to connect the [c]FP-DIO-550 to any circuits
that may contain hazardous voltages.
This section describes the isolation of the [c]FP-DIO-550 and its
compliance with international safety standards. The field wiring
connections are isolated from the backplane and the inter-module
communication bus. The isolation barriers in the module provide
250 V
rms
Measurement Category II continuous isolation, verified
by 2,300 V
rms
, 5 s dielectric withstand test. The [c]FP-DIO-550
provides
double insulation
(compliant with IEC 61010-1) for
working voltages of 250 V
rms
1
. 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.
Never
try to use any isolation product between human-accessible
parts (such as DIN rails or monitoring stations) and circuits that
can be at hazardous potentials under normal conditions, unless the
product is specifically designed for such an application, as is the
[c]FP-DIO-550.
1
Working voltage
is defined as the signal voltage plus the common-mode voltage.
Common-mode voltage
is the voltage of the module with respect to ground.
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