Terminal
Type
Function
6
W
Outgoing power for the pump
Table 2: Control I/O
Terminal
Type
Function
1
+24-V Output
+24-V external supply is connected
here for backup power
2
Digital input 8-30V DC
Pump block input
3
Digital input 8-30V DC
External alarm reset
4
Digital input 8-30V DC
Level switch
5
+ 10-V output (~20 mA Out)
Unused
6
Analog input 0-20 mA
Pump sensor (T2)
7
Ground
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
Sum alarm relay contact, 250V AC,
30V DC, 5A
15
Relay 1 NO
Sum alarm relay contact, 250V AC,
30V DC, 5A
16
Relay 1 NC
Sum alarm relay contact, 250V AC,
30V DC, 5A
17
Relay 2 common
Unused
18
Relay 2 NO
Unused
Installation
14
SRC 311 - SmartRun
™
User guide
