American Power Conversion VS 50 External Alarm Input Connections, Output Relay Connections

RELAY	J 411 TERMINAL	RELAY ALIAS	OUTPUT RELAY NOTES
OUTPUT	DESIGNATIONS
	NO
OUT RELAY #1	C
	NC
OUT RELAY #2	N/A
OUT RELAY #3	N/A
OUT RELAY #4	N/A
OUT RELAY #5	N/A
OUT RELAY #6	N/A
	NO	N/A
MINOR	C	N/A
	NC	N/A
	NO	N/A
MAJOR	C	N/A
	NC	N/A

Figure 2.9-2 Output Relay Connections

External Alarm Input Connections

Four external alarm inputs with assignable relay outputs are available. User 1 and 2 inputs respond only to external dry contact closures between normally open (NO) and common (C) and User 3 and 4 respond only to external dry contact openings between normally closed (NC) and C. A Wago connector is located on the backplane card mounted in the left rear of the unit. The Wago connectors accept wires 26 AWG to 20 AWG (0.129 mm2 to 0.518 mm2). To connect the user input, remove ¼ in (6 mm) of insulation from the end of the wire. Push down the white tab on the Wago connector, insert the stripped wire and release the tab to make the connection. Refer to Figure 2.9-1for backplane board connections.

EXTERNAL ALARM	J412 TERMINAL	USER ALARM NOTES
INPUT	DESIGNATIONS
#1 NO	USER1NO
#2 NO	USER2NO
#3 NC	USER3NC
#4 NC	USER4NC
#1 C	USER1C
#2 C	USER2C
#3 C	USER3C
#4 C	USER4C

Figure 2.9-3 External User Input Connections

Magnum VS –48 Vdc User Manual Page 19