Terminal
Type
Function
2
Relay 3 contact, 250 V AC, 30 V DC, 5 A
User configurable relay #3
3
Relay 4 common, 250 V AC, 30 V DC, 5 A
User configurable relay #4
4
Relay 4 contact, 250 V AC, 30 V DC, 5 A
User configurable relay #4
5
Relay 5 common, 250 V AC, 30 V DC, 5 A
Relay #5 (Pump running output)
6
Relay 5 contact, 250 V AC, 30 V DC, 5 A
Pump running output
Table 6: External I/O controller card
Terminal
Type
Function
1
Extended digital input 1
External I/O Auto mode
2
Extended digital input 2
External Hand mode
3
Extended digital input 3
Activate external I/O control
2
4
NC
Not used
5
Extended relay common
User configurable relay #3
6
Extended relay normally open contact
User configurable relay #3
Install a three pump system
WS003643
1
2
3
1. Install the first two pumps and drives according to the instructions in
(page 21).
2. Connect the power cables to the third drive.
3. Connect the power and sensor cables to the third pump.
4. Connect the level sensor cables from drive 1 and drive 2.
a) Connect terminal 8 on drive 3 to terminal 10 on drive 2.
b) Connect terminal 7 on drive 2 to terminal 7 on drive 3.
2
Extended digital input 3 must be activate for External digital input 1 and 2 to work.
Electrical Installation
28
SRC 311 - SmartRun
™
Installation, Operation, and Maintenance Manual
