1
L1 L2 L3
U
V
W
+DC
-DC
BR
2 3
4
5 6
7
8 9
10
11 12 13 14 15 16 17 18
4
2 3
1
WS003603
1
L1 L2 L3
U
V
W
+DC
-DC
BR
2 3
4
5 6
7 8
9 10 11 12 13 14 15 16 17 18
4
2 3
1
Figure 16: Frame size 4–6
1. Cable to enable shared sensor signals
2. Terminal 4 to terminal 4, shares the digital signal from the level switch
3. Terminal 7 to terminal 7, shares the screen lead, or ground (earth) lead from the
pump
4. Terminal 10 to terminal 8, shares the analog signal from the level sensor
7. Connect the level sensor, 4-20mA:
a) Twist the + and - lead to minimize the electromagnetic noise in the signal.
b) Connect the + lead to control terminal 12 and the - lead to control terminal 10 on
drive 2.
L1/L L2/N L3
U
V
W
+
B
1 2 3 4 5 6 7 8
9 10
11
12
13
1
2
3 4
5
WS003656
Figure 17: Frame size 2–3
1
L1 L2 L3
U
V
W
+DC
-DC
BR
2 3 4 5 6 7 8
9 10
11
12
13 14 15 16 17 18
4
2
1
3
5
WS003601
Figure 18: Frame size 4–6
1. Cable from the level sensor
2. Screen lead
3. -
4. +
5. Isolate the lead that is not used
c) Connect the screen lead to terminal 9 on drive 2.
d) Isolate the white lead since it is not used.
Electrical Installation
SRC 311 - SmartRun
™
Installation, Operation, and Maintenance Manual
25
