Varec 8315 Series Unit AC Input Power terminal block J2, Field Power Vfield terminal block J3

Hardware TankGate Interface

2.2.1.1Unit AC Input Power terminal block (J2)

The Unit AC power terminal block is used to provide AC power to the TankGate. The power requirements for the TankGate are 100-240 VAC, 50/60 Hz. The AC Input Power terminal block is shown in the figure below:

Figure 2-4: AC Input terminal block

		EARTH
A	B	NEUTRAL
		LINE
		SURGE GND
	RS232	+	VFIELD	J2
		-
	COM1
		A/TXD
	RS485	B/RXD
		GND	COM1	EARTH
		RTS
		CTS
		TXD
		RXD	COM
			0
		GND
		+15V	AUX POWER	NEUTRAL
		+5V
		GND
		-15V
				LINE
				J4
				SURGE GND
				+	VFIELD
				-

2.2.1.2Surge Protection (Surge Gnd) terminal block (J4)

The Surge Gnd terminal block is used to connect the surge protection components (gas tubes, MOVs) to earth ground. Ensure there is a low impedence path (< 1ohm) to earth ground (a ground rod or grounding system).

2.2.1.3Field Power (VFIELD) terminal block (J3)

The Field Power terminal block, referred to as VFIELD, is used to provide power for field instruments. The output is configurable using jumpers (Jumper W3, discussed below).

Figure 2-5: field Power terminal block

		EARTH		LINE
A	B	NEUTRAL
		LINE
		SURGE GND		J4
	RS232	+	VFIELD
		-
	COM1
		A/TXD		SURGE GND
	RS485	B/RXD
		GND	COM1
		RTS
		CTS
		TXD
		RXD	COM
		GND	0 AUX	J3
		+15V
		+5V
		GND	POWER	+	VFIELD
		-15V
				-
				A/TXD
				B/RXD
				GND	COM1

2.2.1.4Auxiliary DC Output Power terminal block (J8)

The Auxiliary power terminal block is used when external equipment must be powered from the TankGate’s internal power supply. The triple output power supply provides +5,

8 Installation and Operations Manual