ROBERTS GORDON
®
ULTRAVAC™ C
ONTROLLER
I
NSTALLATION
M
ANUAL
16
FIGURE 11: ROBERTS GORDON
®
ULTRAVAC™ Central Controller External Wiring
+
- 1
2
4
3
5
6
7
8
+
-
+-REF
24V
AC
L2
RS485 COMM
REF
+-
1
+-
2
+-
3
+-
4
METER INPUTS
UNIVERSAL
INPUTS
IN
OUT
ADDRESS
RESET
10VDC
499 OHM
OFF
ON
OUT
IN
G
IN
OUT
GGG
+5
+32
AUX POWER
RS232 DIRECT
RI
CD
OH
CPU
L1
PWR
Separate line and low volta
g
e circuits.
Do not run line volta
g
e wirin
g
throu
g
h bottom
section of enclosure that houses the control board.
Do not run low volta
g
e wirin
g
throu
g
h top section
of enclosure that houses the relay board.
Do not run line and low volta
g
e wirin
g
in the same conduit.
N
OTE 1: This diagram applies to the Central
Controller (controller #1) only. For all Satellite Controllers see Satellite Controller External
W
iring Diagram. Central Controller
(controller #1) re
qu
ires o
u
tdoor sensor
w
iring and either modem, RS-4
8
5 con
v
erter
w
iring, or TCP/IP mod
u
le
w
iring.
N
OTE 2: T
w
ist shield
w
ires for
b
oth RS-4
8
5 comm
u
nication ca
b
les together and gro
u
nd at central panel only. On controller #1 only,
connect these t
w
isted shield
w
ires to gro
u
nd. For
V
FD 0-10
V
signal
w
iring, connect shield
w
ire to gro
u
nd at the controller only.
N
OTE 3: 120
V
1 Ø 50-60 Hz s
u
pply for 120
V
V
FD model. 230
V
1 Ø 50-60 Hz s
u
pply for 230
V
V
FD model. 460
V
3 Ø 50-60 Hz
s
u
pply for 460
V
V
FD model. See
V
FD rating plate for re
qu
ired inp
u
t.
Repetitive cyclin
g
of a disconnect or input contactor
(more than once every two minutes) may cause dama
g
e to the drive.
N
OTE 4: Zone 3 Sensor(not sho
w
n)
w
iring is as follo
w
s: SE
N
o
u
tp
u
t to analog inp
u
t 3; SET o
u
tp
u
t to analog inp
u
t 6;
O/R o
u
tp
u
t to meter inp
u
t 3; +/- o
u
tp
u
ts to +32
V
/G
N
D inp
u
ts.
N
OTE 5: Internal pre-
w
iring not sho
w
n.
N
OTE 6:
W
iring from 32
V
terminals on the controller to sensor po
w
er terminals "+" and "-" is polarity sensiti
v
e.
N
OTE 7: All three po
w
er o
u
tp
u
t
w
ires from terminals U,
V
, and
W
to the p
u
mp motor m
u
st
b
e kept tightly
bu
ndled and r
u
n in a
separate cond
u
it a
w
ay from all other po
w
er and control
w
iring.
O
u
tdoor
Sensor
BMS Ena
b
le
(optional)
N
C C
N
O
To Satellite Controller
RS-4
8
5
(see
N
OTE 2)
Zone 1
Sensor
(see
N
OTE 6)
120
V
1 Ø
60 Hz
POWER
L1
L2
GRD
OUTPUT 1
L1
L2
GRD
OUTPUT 2
L1
L2
GRD
OUTPUT 3
L1
L2
GRD
OUTPUT 4
L1
L2
GRD
OUTPUT 5
L1
L2
GRD
OUTPUT 6
L1
L2
GRD
OUTPUT 7
L1
L2
GRD
OUTPUT 8
L1
L2
GRD
Press
u
re
S
w
itch (P
u
mp)
Phone Line
for Modem
(optional)
(see
N
OTE 1)
To RS-4
8
5
Con
v
erter at PC
(optional)
(see
N
OTE 1 & 2)
Press
u
re S
w
itch
(Optional O
u
tside Air Blo
w
er)
Zone 2
Sensor
(see
N
OTE 6)
+
-
O/R
SET
SE
N
+ -
O/R
SET
SE
N
Electrical
w
iring connections indicated
b
y a dot;
Gro
u
nd Shield (one end only) indicated
b
y;
+
-
(See
N
OTE 2)
Continued
On Next
Pa
g
e
+ -
1
+ -
2
+ -
3
+ -
4
NC C NO
NC C NO
NC C NO
NC C NO
NC C NO
NC C NO
NC C NO
NC C NO
+
-
+
-
+
-
+
-
+
-
+
-
+
-
M16/12.P
