Setup | Electrical Window - Raychem nvent NGC-UIT3-EX Programming Manual

Low Limit Cut-Out Entry Field - Elexant 5010i, NGC-20 Only
Low Limit Cut-Out feature is triggered depending on Control and RTD Modes of the Elexant 5010i, NGC-20. Table 3.3 indicates
which RTD Modes will initiate a Low Limit Cut-Out for each Control Mode. If these RTDs are assigned to a Circuit and measure a
temperature above the Low Limit Cut-Out threshold, the NGC-UIT3 generates an alarm and the relay output is turned off. If the Low
Limit temperature is above this threshold plus the variable Deadband, the output is turned on.
Limit Cut-Out Enable/Disable Toggle Buttons
Enables or disables the high limit cut-out capability. When enabled, the NGC-UIT3 alarms and the output relay turns OFF if any RTDs
exceed the cut-out value. If the high limit cut-out is disabled, the relay output will continue to function normally without the high
temperature cut-out feature.
3.3.8 Setup | Electrical window
This window configures ground fault alarm and trip values for the Circuit. (This feature is only supported when used with CRM/CRMS
or Elexant 5010i / NGC-20 controller boards. This feature is not supported with RMC controller output modules. Ground fault alarm is
a latching alarm and must be reset.) These alarms are latching alarms and must be reset.
Fig. 3.14 Setup | Electrical window
Ground-Fault Alarm Entry Field
Set the Ground-Fault Alarm threshold to the desired level. The ground-fault alarm may not be disabled.
Range Elexant 5010i / NGC-20: 10 mA to 250 mA
Range NGC-30: 10 mA to 200 mA
Default: 20 mA
Ground-Fault Trip Entry Field
Set the Ground-Fault Trip value to the desired level. If a Ground-Fault Trip condition occurs, the relay output is turned off and will not
turn on until the fault has been cleared, and the Circuit is reset in Status | Circuit window.
Range NGC-20: 10 mA to 250 mA
Range nVent RAYCHEM NGC-30: 10 mA to 200 mA
Default: 30 mA
Ground-Fault Trip Toggle Button
Enables or disables the ground-fault trip capability. When enabled, the output relay turns OFF if the ground-fault current exceeds the
trip value. An alarm is created in the Events window. The output relay is not functional until the ground-fault problem is fixed and
the alarm is reset. If the Ground-Fault Trip is disabled, the relay output will continue to function normally but without ground-fault
safeguards.
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