Bell & Gossett 176R0649C Technologic 502 Series Pump Controller - Manual (Page 23)

23
Figure 3-13.2. Customer W
iring Schematic Diagram, VFD with 2 or 3 Followers (2 of 2)
M2
2T1 2T2 2T3
PUMP
MO
TO
R #2
DIST
. BLK
FROM
POWER
INPUT
L13 L1
1
L12
W GND
V U
FOLLOWER 1
L13 L1
1
L12
GND
GND
GND BAR
4
5
6
REL
AY
2
1
2
3
REL
AY
1
C
N O
N
C
C
N O
N
C
VARIABLE FREQUENCY
DRIVE
COMMON P
ANEL
LOCA
TED IN
ENCLOSUR
E
DISCONNECT
X30A-6 1N19
X30A-2 1N17
VFD1-29 1K24 VFD1-20 1L24
M4
4T1 4T2 4T3
L13 L1
1
L12
W GND V U
FOLLOWER 3 (OPT
.)
GND
GND
GND BAR
4
5
6
REL
AY
2
1
2
3
REL
AY
1
C
N O
N
C
C
N
O
N C
VARIABLE FREQUENCY
DRIVE
USB
VFD1-5 1R24
TO
DP4 1I30
PUMP
MO
TO
R #4
M3
3T1 3T2 3T3
PUMP
MO
TO
R #3
W GND V U
FOLLOWER 2 (OPT
.)
L13 L1
1
L12
GND
GND
GND BAR
4
5
6
REL
AY
2
1
2
3
REL
AY
1
C
N O
N
C
C
N
O
N
C
VARIABLE FREQUENCY
DRIVE
X30A-7 1N20
TO
DP3 1I29
VFD1-29 VFD1-20
VFD1-29 VFD1-20
VFD2
VFD4
VFD3
61
68
69
50
42
39
53
54
55
20
33
32
19
27
29
18
13
12 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
USB
61
68
69
50
42
39
53
54
55
20
33
32
19
27
29
18
13
12 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
USB
61
68
69
50
42
39
53
54
55
20
33
32
19
27
29
18
13
12 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
L3 L2 L1
DS2
FU2
(LOCA
TED ON VFD)
DISCONNECT V/S PUMP
L3 L2 L1
DS3
FU3
(LOCA
TED ON VFD)
DISCONNECT V/S PUMP
L3 L2 L1
DS4
FU4
(LOCA
TED ON VFD)
DISCONNECT V/S PUMP
1B09 1B09 1B10
X30A-4 1N18
X30A-3 1N18