Connecting To External Controls; Using The Supplied Low Voltage Signal For Digital Control - STA-RITE VS2 Installation Manual

8
Control with External Control and Digital Inputs
The user can run the VS2 Variable Speed Pump with automation external controls or Pentair
four programmed Speeds to be controlled remotely. The pump has a sealed connector that can be used with Pentair
Data Cable (optional, P/N 353129Z) to run the Speeds using digital input signals. When there is an external low voltage
signal present on the Speed Digital Input line, the pump will run the speed programmed for that Digital Input. The
supplied +5V signal is the recommended input used for external control and Speed Digital Inputs.

Connecting to External Controls

Using the Supplied Low Voltage Signal for Digital Control

The VS2 provides a low voltage output signal that can be used to trigger its own Digital Inputs. This signal will need to
be switched via the External Control system to engage the speed that it is connected to as in Figure 4. This could be
an automation relay or switch in another piece of equipment. This feature could be useful for ensuring that the pump is
running a certain program when a specific speed is needed to perform a task.
The wire included with the Pentair Data Cable (optional, P/N 353129Z) will need to be cut to length for the installation.
Do not leave excess wire around the installation, and the wire should be supported by something rigid if conduit is not
used. At one end of the cable is a custom molded, watertight connection that plugs into the panel connection on the side
of the drive. The opposite end has 6 wires that are defined by Table 1 below. When using the +5V signal supplied by the
drive, the speeds should be wired as shown in Figure 4.
When there is a low voltage signal present on the Speed Digital Input line the pump will run the speed that is programmed
for the speed that is being triggered. The +5V signal supplied via the (red) wire is the suggested input for the Speed
Digital Inputs. See Figure 4.
Note: Any relay can be associated to any Digital Input. Figure 4 shows one of many potential wiring options available to
the installer, allowing you to install External Controls in the way that best suits your needs.
Note: This +5V Signal (red wire) is output from the drive only, and should never be wired to another power
supply!
When a Speed Digital Input is triggered, the LED above the Speed button will begin to blink and the display will toggle
between the display parameter and "EC" indicating an External Control is running. The pump will run this speed as long
as the Digital Input trigger is present. This will override the schedule or any user inputs for Speed selections via the
keypad. The Display button is still functional along with the Start/Stop button. Once the Digital Input trigger is removed
from all of the Speed Digital Input wires, the pump will resume the programmed schedule.
RELAY 1 RELAY 2 RELAY 3
GREEN
YELLOW
ORANGE
BROWN
BLACK
Figure 4:
External Control Kit Wiring Diagram
Using an Externally Supplied Low Voltage Signal for External Control
When using an externally supplied low voltage signal as the Digital Input trigger, the wire should be connected as
shown in Figure 5. The low voltage input needs to be within the range of 5-30V AC or DC. In this case the red
+5V supply from the motor control will not be used.
Note: This +5V signal (red wire) is output from the drive only and should never be wired to a voltage supply!
The external low voltage signal can be regulated by switches or relays to activate the desired Digital Input. If
more than one Digital Input is active at one time then they will be resolved by priority.
POWER RELAY (DPST)
RELAY
RELAY 4
RED +5V OUTPUT FOR D.I. TRIGGERS
SPEED 1 DIGITAL INPUT
SPEED 2 DIGITAL INPUT
SPEED 3 DIGITAL INPUT
SPEED 4 DIGITAL INPUT
GROUND
Definition
+5V Output for Digital Inputs
Speed 1 Digital Input
Speed 2 Digital Input
Speed 3 Digital Input
Quick Clean Digital Input
Common Ground
Table 1:
Automation Control System Input Wiring Chart
ControlPro™, allowing all
®
Wire
Signal Range Color
0 - 20mA Red
0, 5 - 30V AC/DC Green
0, 5 - 30V AC/DC Yellow
0, 5 - 30V AC/DC Orange
0, 5 - 30V AC/DC Brown
0V Black