Page 90 - Sace Emax 2 Manual for design engineers

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ABB | SACE Emax 2
Current thresholds Function
The Current thresholds allow checks to be set along the current lines, to be associated with the programmable
contacts of the Ekip Signalling modules (in all versions).
Two pairs of programmable contacts are available:
• Threshold 1 I1 and Threshold 2 I1, with control relating to I1
• Threshold Iw1 and Threshold Iw2, with control relating to In
The thresholds can be enabled and set in the Advanced - Signaling menu (page 44).
IMPORTANT:
• the current thresholds do not handle the trip, just the signal
• the function is activated if the trip unit is powered by auxiliary voltage
Parameters
Threshold Available parameters Default
Enable: Activates the protection and availability of the threshold in the menu OFF
Threshold 1 I1 Threshold: The value is given in percentage of threshold I1 and can be set
within the range: 50% I1 to 100% I1, in 1% steps. 50 % I1
Enable: Activates the protection and availability of the threshold in the menu OFF
Threshold 2 I1 Threshold: The value is given in percentage of threshold I1 and can be set
within the range: 50% I1 to 100% I1, in 1% steps. 75 % I1
Enable: Activates the protection and availability of the threshold in the menu OFF
Direction: allows the user to choose whether to have the signal when the
Threshold Iw1 current is higher (Up) or lower (Down) than the threshold. Down
Threshold: The value is given as both absolute value (Amperes) and relative 3 In
value (In) and can be set within the range: 0.1 In to 10 In, in 0.01 In steps
Enable: Activates the protection and availability of the threshold in the menu OFF
Direction: allows the user to choose whether to have the signal when the
Threshold Iw2 current is higher (Up) or lower (Down) than the threshold. Up
Threshold: The value is given as both absolute value (Amperes) and relative
value (In) and can be set within the range: 0.1 In to 10 In, in 0.01 In steps 3 In

Figure 27

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