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A S P M E T E R C O M M I S S I O N I N G
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ASPMETER commissioning
High alarm thresholds
Type the instantaneous current value, expressed as a
percentage of the breaker size (default = 60%). When the
circuit current exceeds that value, the high current alarm i
s activated. To disable any alarms, set the specific high
alarm threshold to zero.
Example: If the threshold is set to 60%, the high alarm
would be activated when instantaneous current for
a 20 A breaker exceeds 12 A (i.e., 20 A x 0.60).
Low alarm thresholds
Type the instantaneous current value, expressed as a
percentage of the breaker size (default = 5%). When the
circuit current falls below that value, the low current alarm
is activated. To disable any alarms, set the specific low
alarm threshold to zero.
Example: If the threshold is set to 5%, the low alarm would
be activated when instantaneous current for a 20 A breaker
drops below 1 A (i.e., 20 A x 0.05).
Hysteresis
Type the value, expressed as a percentage of the alarm
threshold, that defines how much the circuit current must
fall below the high alarm threshold or rise above the low
alarm threshold, to determine the alarm's OFF state
(default = 5%; non-latching only).
Example: If hysteresis is set to 5%, the OFF state for a high
alarm threshold of 12 A would be at 11.4 A and below [i.e.,
12 A minus (12 A x 0.05)], while the OFF state for a low alarm
threshold of 1 A would be at 1.05 A and above [i.e., 1 A plus
(1 A x 0.05)].
Amps
High
High - hysteresis
Low + hysteresis
Low
1 High alarm set on
2 High alarm set off
1
3 Low alarm set on
2
4 Low alarm set off
4
3
There are two types of alarms: Latching and non-latching.
Latching alarm settings defined
High-high alarm delay(s): Number of seconds the current
in a circuit needs to be continuously above the high-high
alarm threshold before the high-high alarm is activated
(default = 10 s).
High alarm delay(s): Number of seconds the current in
a circuit needs to be continuously above the high alarm
threshold before the high alarm is activated (default = 10 s).
Low alarm delay(s): Number of seconds the current in
a circuit needs to be continuously below the low alarm
threshold before the low alarm is activated (default = 10 s).
Low-low alarm delay(s): Number of seconds the current
in a circuit needs to be continuously below the low-low
alarm threshold before the low-low alarm is activated
(default = 10 s).
Latching alarm ON time(s): Number of seconds the current
in a circuit needs to stay above the low-low alarm
threshold level before the latching alarms are armed/
enabled for that channel (default = 10 s).
Latching alarm OFF time(s): Number of seconds the
current in a circuit needs to be below the low-low alarm
threshold level before the latching alarm is de-activated
(default = 30 s). After this point, all latching alarms are
disabled on this channel.
High-high alarm threshold (%): Limit for the high-high
current alarm state, expressed as a percentage of the
breaker size (default = 70%). For example, the high-high
alarm threshold for a 20 A breaker is 14 A (i.e., 20 x 0.70).
To disable this alarm (for all channels), set its threshold
value to 0%.
High alarm threshold (%): Limit for the high current alarm
state, expressed as a percentage of the breaker size
(default = 60%). For example, the high alarm threshold for
a 20 A breaker is 12 A (i.e., 20 x 0.60). To disable this alarm
(for all channels), set its threshold value to 0%.
Low alarm threshold (%): Limit for the low current alarm
state, expressed as a percentage of the breaker size
(default = 7.5%). For example, the low alarm threshold for
a 20 A breaker is 1.5 A (i.e., 20 x 0.075). To disable this alarm
(for all channels), set its threshold value to 0%.
Low-low alarm threshold (%): Limit for the low-low current
alarm state, expressed as a percentage of the breaker size
Time
(default = 2.5%). For example, the low-low alarm threshold
for a 20 A breaker is 0.5 A (i.e., 20 x 0.025). To disable this
alarm (for all channels), set its threshold value to 0%.
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