Alpha Technologies AlphaGen PN-6x-T 7.5kW 48VDC - Installation and Operation Manual - Manual (Page 46)

46 745-020-B0-003, Rev. C
4.0 The Engine Control Module, continued
4.7 Connecting the Alarm and Control Connections
The Alarm output interface and communications connectors are shown below.
Fig. 4-4, RS-488 (AlphaBus) Communications Input Connector
Pin 1
Fig. 4-5, Terminal Block 1
Terminal Block 1
Pin Alarm Signal Description Alarm Active State
1 Engine Run Common N/A
2 Engine Run Closed with respect to Pin 1
3 Engine Run Open with respect to Pin 1
4 Major Alarm Common N/A
5 Major Alarm Closed with respect to Pin 4
6 Major Alarm Open with respect to Pin 4
7 Minor Alarm Common N/A
8 Minor Alarm Closed with respect to Pin 7
9 Minor Alarm Open with respect to Pin 7
10 Not used Not used
11 Not used Not used
12 Not used Not used
Pin 1
TB 1