Bell & Gossett 176R0649C Technologic 502 Series Pump Controller User Manual
Page 27
27
Figure 3-16. 70X Series Customer W
iring Diagram
60 Hz
3Ø
POWER
INPUT
2L1
2L3
2L2
L3
L2
L1
BLOCK
DISTRIBUTION
L13
L1
1
L12
CUS
TO
MER
SUPPLIED BRANCH CIRCUIT
PROTECTION
DP3
DP4
DP2
DP1
R1
249W
FEEDBACK 1
4-20mA
FEEDBACK 2
4-20mA
FEEDBACK 3
4-20mA
FEEDBACK 4
4-20mA
VFD1-53
1G29
VFD1-5
4
1F29
X2
X1
H4
H2
H3
H1
FU5
T1
FU6
M1
(A2)
(A1)
X1
X2
C/S PUMP
#1
CONT
AC
TO
R
1I10,1I
11
,1I12
G
PL1
GND BAR
GND
OL1
C/S PUMP
#1
ON
LAG PUMP
#1
OFF
SS1
HAND
AU
TO
xoo
oox
1
2
4
(95)
(96)
3
1
M2
(A2)
(A1)
C/S PUMP
#2
CONT
AC
TO
R
1I13,1I14,1I15
G
PL2
OL2
C/S PUMP
#2
ON
LAG PUMP
#2
OFF
SS2
HAND
AU
TO
xoo
oox
1
5
7
(95)
(96)
6
1T1
1T2
1T3
PUMP
#1
VA
RIABLE SPEED
W
L3
GND
V
L2
L1
U
L13
L1
1
1L2
DS1
GND
GND
FU1
GND BAR
61
68
69
50
42
39
53
54
55
20
33
32
19
27
29
18
13
12
4
5
6
RELA
Y
2
1
2
3
RELA
Y
1
C
N
O
N
C
C
N
O
N
C
VA
RIABLE
FREQUENCY
DRIVE
(LOCA
TED ON VFD)
USB
V/S PUMP
VFD
C/S PUMP
#1
DISCONNECT
FU2
2L1
1
2L31
2L21
M1
(L1)
(L2)
(L3)
2L12
2L32
2L22
(L1)
(L2)
(L3)
(T1)
(T2)
(T3)
(T1)
(T2)
(T3)
C/S PUMP
#1
OL1
EAR
TH
GROUND
3L1
3L3
3L2
L3
L2
L1
C/S PUMP
#2
DISCONNECT
FU3
3L1
1
3L31
3L21
M2
(L1)
(L2)
(L3)
3L12
3L32
3L22
(L1)
(L2)
(L3)
(T1)
(T2)
(T3)
(T1)
(T2)
(T3)
C/S PUMP
#2
OL2
EAR
TH
GROUND
X2
X2
DS
2
D
S3
GND
DISCONNECT
5L1
5L2
2T
1
2T3
2T
2
3T1
3T3
3T2
GENERAL ALARM
240V
AC, 2A MAX.
3
4
7
6
9
10
1
MCB-101
AUX. CONNECT
OR
11
12
X30A
RR1
(A2)
(A1)
C/S PUMP
#1
RUN RELA
Y
1K04,*,*,*
201
RR1
(X
)
(X)
RR2
(X
)
(X)
RR2
(A2)
(A1)
200
202
200
1 2
ON
1 2
ON
ON=0-20mA OFF=0-10V
S201
S202
RS485
(+)
(-)
CUS
TO
M FIELD
CONNECTION FO
R
CONFIGURABLE
ANALOG OUTPUT
P
COM
N
C/S PUMP
#2
RUN RELA
Y
1N04,*,*,*
FEEDBACK 2
1Q29
FEEDBACK 1
1Q28
13
14
OP
T. LOW SUCTIO
N
PRESSURE SWITCH
SYSTEM RUN
REMOTE
4L1
4L3
4L2
L3
L2
L1
C/S PUMP
#3
DISCONNECT
FU4
4L1
1
4L31
4L21
M3
(L1)
(L2)
(L3)
4L12
4L32
4L22
(L1)
(L2)
(L3)
(T1)
(T2)
(T3)
(T1)
(T2)
(T3)
C/S PUMP
#3
OL3
EAR
TH
GROUND
DS4
4T
1
4T3
4T2
M3
(A2)
(A1)
C/S PUMP
#3
CONT
AC
TO
R
1I16,1I17,1I18
G
PL3
OL3
C/S PUMP
#3
ON
LAG PUMP
#3
OFF
SS3
HAND
AU
TO
xoo
oox
1
8
10
(95)
(96)
9
X2
RR3
(X
)
(X)
RR3
(A2)
(A1)
200
203
C/S PUMP
#3
RUN RELA
Y
1P04,*,*,*
C/S PUMP
2 & PUMP
3 - OPTIONAL
Din
COM
Din
8
Din
9
3
Dout
4
Dout
Out
+24V
(2)
GND
Ain
3
Ain
4
Out
+24V
Out
+24V
Out
+24V
Di
n
Din
D I/O
D I/O
Di
n
Din
Din
COM
Out
+24V
CO
M
P
N
A Out
COM
A
Out
Out
+10V
Ai
n
Ain
Ain
COM
CUS
TO
MER
SUPPLIED (+24V)
RUN ST
AT
US
(+24V)
V/S PUMP
NOTE: *=UNUSED CONT
ACT
R2
249W
L13
L1
1
L12
2
Din 7
204
204
C/S PUMP
2 & PUMP
3 - OPTIONAL
(OPTIONAL)
(OPTIONAL)