Roberts Gorden NEMA 4 installation manual 120 1 Ø

ROBERTS GORDON® ULTRAVAC™ CONTROLLER INSTALLATION MANUAL

FIGURE 12: ROBERTS GORDON® ULTRAVAC™ Satellite Controller External Wiring

	To Satellite Controller
	RS-485
Zone 1	(See NOTE 2)
	Zone 2
Sensor	Sensor
(see NOTE 6)	(see NOTE 6)
SEN SET O/R - +	SEN SET O/R - +

NC C NO

BMS Enable

(optional)

NC C

NCNO

C NO

NC C

NO NC

C NO

-

+8

- 7 +

- +6 UNIVERSAL - 5 +

- +4

- 3 INPUTS +

- 2 +

	-
	+1
OFF ON	OUT IN	CPU	ADDRESS	RESET
10VDC	499 OHM			OH

CD RI

		NC C NO NC C NO NC C NO NC C NO
	L2 L1 PWR 24VAC
RS232 DIRECT		OUT IN G
AUX		+32 +5
POWER		G
		G
		G
RS485	OUT	REF
	-
	+
COMM		REF
	+
	-
	IN

	-
	4
METER	+
	+
	-
INPUTS	3
	+-
	-
	2
	1
	+

Join Shields - Do Not Ground

OUTPUT 8	L1 L2 GRD
OUTPUT 7	L1 L2 GRD
OUTPUT 6	L1 L2 GRD
OUTPUT 5	L1 L2 GRD
OUTPUT 4	L1 L2 GRD
OUTPUT 3	L1 L2 GRD
OUTPUT 2	L1 L2 GRD
OUTPUT 1	L1 L2 GRD
POWER	L2 GRD
	L1

Continued

On Next

Page

(See NOTE 2)

Electrical wiring connections indicated by a dot;

Ground Shield (one end only) indicated by;

Separate line and low voltage circuits.

Do not run line voltage wiring through bottom section of enclosure that houses the control board. Do not run low voltage wiring through top section of enclosure that houses the relay board.

Do not run line and low voltage wiring in the same conduit.

NOTE 1: This diagram applies to the Satellite Controller only.

The Satellite Controller does not require modem, RS-485 converter wiring to the PC, For Central Controller see Central Controller External Wiring Diagram.

120 V

1 Ø

From previous 60 Hz controller RS-485

(See NOTE 2)

Pressure

Switch (Pump)

Pressure Switch

(Optional Outside Air Blower)

TCP/IP module wiring, or outdoor sensor wiring.

NOTE 2: Twist shield wires for both RS-485 communication cables together and ground at central panel only. On controller #1 only, connect these twisted shield wires to ground. For VFD 0-10 V signal wiring, connect shield wire to ground at the controller only.

NOTE 3: 120 V 1 Ø 50-60 Hz supply for 120 V VFD model. 230V 1 Ø 50-60 Hz supply for 230 V VFD model. 460 V 3 Ø 50-60 Hz

supply for 460 V VFD model. See VFD rating plate for required input. Repetitive cycling of a disconnect or input contactor (more than once every two minutes) may cause damage to the drive.

NOTE 4: Zone 3 Sensor(not shown) wiring is as follows: SEN output to analog input 3; SET output to analog input 6; O/R output to meter input 3; +/- outputs to +32 V/GND inputs.

NOTE 5: Internal pre-wiring not shown.

NOTE 6: Wiring from 32 V terminals on the controller to sensor power terminals "+" and "-" is polarity sensitive.

NOTE 7: All three power output wires from terminals U, V, and W to the pump motor must be kept tightly bundled and run in a separate conduit away from all other power and control wiring.

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