Nx Networks NX series user manual 4386, Control terminal signals

Cabling and connections 43(86)

6.2.2Control terminal signals

	Terminal		Signal	Technical information
1		+10 Vref	Reference voltage	Maximum current 10 mA
2		AI1+	Analogue input,	Selection V or mA with jumper block X1 (see page 45):
			voltage or current	Default: 0– +10V (Ri = 200 kΩ	)
				(-10V…..+10V Joy-stick control, selected with a jumper)
				0– 20mA (Ri = 250 Ω	)
3		GND/AI1–	Analogue input common	Differential input if not connected to ground;
				Allows ± 20V differential mode voltage to GND
4		AI2+	Analogue input,	Selection V or mA with jumper block X2 (see page 45):
			voltage or current	Default: 0– 20mA (Ri = 250 Ω		)
				0– +10V (Ri = 200 kΩ		)
				(-10V…..+10V Joy-stick control, selected with a jumper)
5		GND/AI2–	Analogue input common	Differential input if not connected to ground;
				Allows ± 20V differential mode voltage to GND
6		24 Vout	24V auxiliary voltage	± 15%, maximum current 250mA (all boards total);150mA
		(bidirectional)		(from single board); Can also be used as external power
				backup for the control unit (and fieldbus)
7		GND	I/O ground	Ground for reference and controls
8		DIN1	Digital input 1	Ri = min. 5kΩ
9		DIN2	Digital input 2
10		DIN3	Digital input 3
11		CMA	Digital input common A for	Must be connected to GND or 24V of I/O terminal or
			DIN1, DIN2 and DIN3.	to external 24V or GND
				Selection with jumper block X3 (see page 45):
12		24 Vout	24V auxiliary voltage	Same as terminal #6
		(bidirectional)
13		GND	I/O ground	Same as terminal #7
14		DIB4	Digital input 4	Ω
				Ri = min. 5k
15		DIB5	Digital input 5
16		DIB6	Digital input 6
17		CMB	Digital input common B for	Must be connected to GND or 24V of I/O terminal or
			DIB4, DIB5 and DIB6	to external 24V or GND
				Selection with jumper block X3 (see page 45):
18		AO1+	Analogue signal (+output)	Output signal range:
				Current 0(4)–20mA, RL max 500Ω or
19		AO1–	Analogue output common
				Voltage 0—10V, R L >1kΩ
				Selection with jumper block X6 (see page 45):
20		DO1	Open collector output	Maximum Uin = 48VDC
				Maximum current = 50 mA
		NXOPTA3
21		RO1/1	Relay output 1	Maximum switching voltage 250VAC, 125VDC
				Maximum switching current8A/24VDC,
22		RO1/2
					0.4A/250VDC
23		RO1/3
				Min. switching load	5V/10mA
25			Relay output 2	Maximum switching voltage 250VAC, 125VDC
		RO2/1		Maximum switching current8A/24VDC, 0.4A/250VDC
26		RO2/2		Min. switching load	5V/10mA
28		TI1/1	Thermistor input 1	Basic galvanic isolation
29		TI1/2		Double isolation when connected to thermistor

Table 6-5. Control I/O terminal signals

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