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1 Optical signals
Signaling Description
Warning Led (fixed yellow
light)
•The prealarm threshold has been exceeded; current values the range 0.02
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June 12, 2007 8:52:11:733
I1' 625A -,
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Number openings due the protections.
Alarm Led (red)
• Presence current values >1.
Model 3447
Apparatus Emax DC
Scale
D oc-N 1SDH000635R0002
Page No.05 1.7.
Warning Led (yellow 2Hz) •Relay's internal temperature exceeding ALARM threshold.p4 Programmable electrical signals the PR120/K module installed and there auxiliary power supply.
* The IEC 60947-2 Standard defines the timing threshold for current: 1. By
connecting PR030/B and PR010/T battery unit BT030 wireless communication unit, you can retrieve the information relating the last 20
trips recorded.
12.1 Information the trip and opening data
Last Trip N.p8 Programmable electric signals the PR021/K unit installed and there auxiliary power supply.
-Indication for protection tripped.
Access view the opening data via the Historicals submenu the Measurements menu. Using the Test" key
makes the release show all these data directly the display.5Hz) •Relay's internal temperature exceeding WARNING threshold.
12.
The prealarm message (wear 80%, "warning" LED lighting up) indicates that the wear has reached high value.
Warning Led (yellow 0.3 (timing protection “L”)*;
• Timing progress for protection function S;
• Contact wear 100%;
• Rating Plug disconnected;
• Trip Coil (TC) disconnected;
• Key plug error;
• CB/release inconsistency
• Installation error.
K51/p1. There need for auxiliary power supply for this function.
In any case, functionality the relay way modified the presence the wear messages. With auxiliary
power supply, the information shown immediately the display without the need press the Test" key and remains displayed indefinitely
until you press the key.6.05xI1;
•Contact wear greater than 80% (and less than 100%);
•WARNING Threshold exceeded;
•Circuit-breaker state error;
•Configuration error;
•Settings inconsistency.6 efinition 122/D unit
12..5.
Value the current
Again the Measurements menu, you can view the percentage contact wear, which indication the electrical life the electrical contacts
in the circuit-breaker.Thealarm message (100%
wear, "alarm" LED lighting up) indicates that necessary check the state contact wear.3 I1...The PR122/DC unit saves all the information relating the type protection tripped, the opening data, the date and time.
Pressing the Test" key enables resetting the activated contacts.
The percentage wear depends the number openings carried out the circuit-breaker and theabsolute current interrupted during
each them.9x^< 1.
45/108
. The data relating the last trips are stored the unit's memory.6.2 Electrical signals
K51/p1. The following example the information provided:
12.
Information remains available for hours with the relay de-energized.
