Alpha-technologies APU Control Module (ACM) Uživatelský manuál stáhnout pdf (Strana 19)

018-340-B0-001 Rev. A

4.0 Alarms and Notiﬁ cations, continued

4.2 Notiﬁ cations

Additionally, the ACM will report the following “Notiﬁ cation” information.

14. Line Failure (LF): The ACM’s determination of the state of AC line voltage. Loss of AC

utility input is one of the criteria for starting the generator. When replacing the Genasys ACU

this is a 240vac sense voltage. When replacing the ACU for the distributive 2.7kw 36Vdc

APU or 3.0kw 48Vdc APU it is a 120Vac sense voltage. There is a voltage selector on the

interface board that comes pre-conﬁ gured depending on the level of this sense voltage.

15. Service Required (SR): Indicates that routine maintenance of the engine - generator

is overdue. This alarm activates when Service Countdown reaches 0. It is cleared by

depressing the service timer reset button for ﬁ ve seconds. (Refer to Section 5.2 “System

Maintenance” for further information).

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Alpha-technologies APU Control Module (ACM) Uživatelský manuál Strana 19