Roberts Gorden NEMA 4 To Satellite Controller RS-485 see NOTE, Zone, Outdoor, To RS-485, Sensor

ROBERTS GORDON® ULTRAVAC™ CONTROLLER INSTALLATION MANUAL

FIGURE 11: ROBERTS GORDON® ULTRAVAC™ Central Controller External Wiring

To Satellite Controller

RS-485

(see NOTE 2)

Zone 1	Zone 2	Outdoor
Sensor	Sensor
(see NOTE 6)	(see NOTE 6)	Sensor
SEN SET O/R - +	SEN SET O/R - +
		+ -

NC C NO

BMS Enable

(optional)

Phone Line

for Modem

(optional)

(see NOTE 1)

NC C NO NC C NO NC C NO NC C NO
-	8
+
-	7
+
	6 5	UNIVERSAL
+
-
+
-	43	INPUTS
-
-
+
+
-	2
+
-	1
+

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

CD RI

1	2	3	4
+ -	+ -	+ -	+ -

(See

NOTE 2)

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

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

OUTPUT 8	L1 L2 GRD
OUTPUT 7	L1 L2 GRD
OUTPUT 6	L1 L2 GRD
OUTPUT5	L1L2 GRD
	Continued
OUTPUT4	L2L1GRD	On Next
		Page
OUTPUT 3	L1 L2 GRD
OUTPUT 2	L1 L2 GRD
OUTPUT 1	L1 L2 GRD
POWER	L2 GRD
	L1
	120 V
	1 Ø
To RS-485	60 Hz
Converter at PC

(optional)

(see NOTE 1 & 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.

Pressure

Switch (Pump)

Pressure Switch

(Optional Outside Air Blower)

NOTE 1: This diagram applies to the Central

Controller (controller #1) only. For all Satellite Controllers see Satellite Controller External Wiring Diagram. Central Controller (controller #1) requires outdoor sensor wiring and either modem, RS-485 converter wiring, or TCP/IP module 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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