36
HIGH CURRENT ALARM level is 0.1 amps. See section 3.5.22 on page 26 for more information
regarding the
CURRENT TURNS RATIO function.
Note: As the HTC automatically protects itself from overload, it would not normally be necessary
to enable this alarm. This automatic protection can be used effectively to guard against acciden-
tal paralleling of heating circuits. In-rush or cold start currents typically associated with self-
regulating cables may cause nuisance
HIGH CURRENT ALARMS. If this is undesirable the alarm
should be disabled.
3.8.4 HIGH LOAD CURRENT ALARM FILTER TIME SETTING (V3.11 AND UP)
Purpose: The
HIGH CURRENT ALARM FILTER will prevent HIGH LOAD CURRENT ALARMS from being
indicated until a high current condition has existed for the duration of the
HIGH CURRENT ALARM
FILTER
time.
Range: 0 to 12 seconds
Procedure: Adjust the
HIGH CURRENT ALARM FILTER time to the desired value. Note that the HIGH
CURRENT ALARM
must be enabled in order to adjust the HIGH CURRENT ALARM FILTER time.
Notes:
• If an alarm condition appears and then disappears before the alarm filter time has expired,
the filter timer is reset and the alarm condition must exist again for the entire alarm filter time
before the corresponding alarm will be indicated.
• If the user resets an alarm while the alarm condition is still exists, the alarm will not be indi-
cated again until the entire alarm filter time has expired.
3.8.5 HIGH GROUND-FAULT CURRENT ALARM
Purpose: Alarms ground-fault current levels which are higher than a preset limit for the application.
Alarm Mask:
ENABLE or DISABLE
Range: 20 to 250 mAmps
Procedure: Adjust the HIGH GFI ALARM level to the desired value. Note that the HIGH GFI ALARM
must be enabled in order to adjust the
HIGH GFI level.
3.8.6 HIGH GROUND-FAULT CURRENT ALARM FILTER TIME SETTING (V3.11 AND UP)
Purpose: The
HIGH GFI ALARM FILTER will prevent HIGH GFI ALARMS from being indicated until a
high
GFI condition has existed for the duration of the HIGH GFI ALARM FILTER time.
Range: 0 to 12 seconds
Procedure: Adjust the
HIGH GFI ALARM FILTER time to the desired value. Note that the HIGH GFI
ALARM
must be enabled in order to adjust the HIGH GFI ALARM FILTER time.
Notes:
• If an alarm condition appears and then disappears before the alarm filter time has expired,
the filter timer is reset and the alarm condition must exist again for the entire alarm filter time
before the corresponding alarm will be indicated.
• If the user resets an alarm while the alarm condition is still exists, the alarm will not be indi-
cated again until the entire alarm filter time has expired.
3.8.7 GROUND-FAULT TRIP ALARM
Purpose: This value sets the upper limit of allowable ground-fault leakage current. Exceeding
this limit will result in the output switch being latched off and the GFI TRIP ALARM activated to
indicate a ground fault condition.
Alarm Mask:
ENABLE or DISABLE
Range: 20 to 250 mAmps
Procedure: If ground-fault tripping is desired, enable the GFI TRIP ALARM and adjust the GF TRIP
CURRENT
to the desired value. To disable ground-fault tripping, disable the alarm. Note that the
GFI TRIP ALARM must be enabled in order to adjust the G.F. TRIP CURRENT level.
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