15.
• EU: Gray
• US: Red
16. Screen lead of the shared communication cable
17. Signal leads of the shared communication cable
18. Pump 2
19. Level sensor
20. Screen lead of the level sensor cable
21. Level sensor lead –
22. Level sensor lead +
23. White, not connected
24. Pump 3
Table 3: Power
Terminal
Type
Function
1
L1/L
Incoming power to the drive
2
L2/N
Incoming power to the drive
3
L3
Incoming power to the drive
4
U
Outgoing power for the pump
5
V
Outgoing power for the pump
6
W
Outgoing power for the pump
Table 4: Control I/O
Terminal
Type
Function
1
+24 V output (maximum 100 mA)
+24 V external supply for backup power
2
Digital input 8–30 V DC
Pump block input
3
Digital input 8–30 V DC
External alarm reset
4
Digital input 8–30 V DC
Level switch
5
+10 V output (maximum 20 mA Out)
Unused
6
Analog input 0–20 mA
Pump sensor (T2)
7
Ground (earth)
8
Analog output 4–20 mA
Level sensor output
9
Ground (earth)
10
Analog input 4–20 mA
Level sensor input
11
Digital output 0–10 V
Pump running output
12
Hardware inhibit input
13
Hardware inhibit output (0 V)
Relay
14
Relay 1 common, 250 V AC, 30 V DC, 5 A
User configurable relay #1 (A-sum alarm)
15
Relay 1 NO, 250 V AC, 30 V DC, 5 A
User configurable relay #1 (A-sum alarm)
16
Relay 1 NC, 250 V AC, 30 V DC, 5 A
User configurable relay #1 (A-sum alarm)
17
Relay 2 common, 250 V AC, 30 V DC, 5 A
User configurable relay #2 (Pump running output)
18
Relay 2 NO, 250 V AC, 30 V DC, 5 A
User configurable relay #2 (Pump running output)
Table 5: Extension relay card
Terminal
Type
Function
1
Relay 3 common, 250 V AC, 30 V DC, 5 A
User configurable relay #3
Electrical Installation
SRC 311 - SmartRun
™
Installation, Operation, and Maintenance Manual
27
