User manual 09/2009 - Schneider Electric

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User manual 09/2009 - Schneider Electric

AlarmsOperation in Open or Closed Forced ModeIn Open forced mode, the output remains in the deactivated position irrespective of the alarm state.In Closed forced mode, the output remains in the activated position irrespective of the alarm state.NOTE: Both these modes can be used for debugging or checking an electrical installation.Acknowledgment of Latching ModeLatching mode is acknowledged via the Micrologic trip unit keypad by pressing theOKkey twice.ASAlarm: Green when activated, white when deactivatedOutput: High position = activated, low position = deactivatedStep Event/Action Information on the Display1 Alarm activation The message Out1 is displayed.2 Alarm deactivation The Out1 message is still displayed.3 Acknowledgment of active position of the output (press The message OK is displayed.theOKkey twice to confirm)4 — The screensaver is displayed.Special Features of Latching ModeIf the acknowledge request is made when the alarm is still active:• Acknowledgment of the output active position has no effect.• Keypad navigation is possible.• The screensaver returns to the Out1 message.If 2 alarms associated with 2 outputs in latching mode are active:• The first alarm message Out1 (or Out2) is displayed on the screen until the alarm is actuallyacknowledged (the output’s active position is acknowledged after the alarm is deactivated).• After acknowledgment of the first alarm, the screen displays the second alarm message Out2 (or Out1)until the second alarm is actually acknowledged.• After both acknowledgments, the display returns to the screensaver.Assignment of the SDTAM Module OutputsOutput 1 (SD2/OUT1), normally open, is assigned to indicating thermal faults.Output 2 (SD4/OUT2), normally closed, is used to open the contactor.They are activated 400 ms before the circuit breaker trips in the case of:• Long time protection• Phase unbalance protection• Jam motor protection (Micrologic 6 E-M)• Underload protection (Micrologic 6 E-M)LV434104 09/2009 115

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