LEGRAND Raritan PX3-3000 Series, User Manual

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Appendix G: PX3 Models with Residual Current Monitoring
799
RCM State Sensor
The RCM state sensor reports events based on residual current
thresholds or RCM self-test failure.
The RCM state is always determined by the magnitude of "total" residual
current values per inlet or per inlet pole as explained below.

For Type A, it is the sum of residual AC current.

For Type B, it is the sum of residual AC and DC current.
In other words, the RCM state is NOT determined by the residual DC
current detected by the separate RCM "DC" sensor on Type B
models.
RCM state Description
normal Residual current is within normal range.
warning Residual current is above warning level.
critical Residual current is above critical level.
In addition to an event, the CRITICAL state causes the PX3 front
panel to display a special error message.
self-test active RCM diagnostics are running.
failure RCM current sensor has malfunctioned. Contact Raritan
Technical Support.
Note: The factory default is to disable the Warning state. To define and
enable this state, see
Setting RCM Current Thresholds (on page 804).
Important: When your PX3 enters the power-sharing mode, the RCM
sensor enters the 'unavailable' state and will not work until the
power-sharing mode ends. For information on power sharing, see
Power-Sharing Restrictions and Connection (on page 45).