TECHNICAL INFORMATION
72 87-900-986-01 (
C
)
P1 – Input
P1 Input Connector
All the logic input to the controller
must
be connected
at J1 mating connector.
With the provided J1 mating connector (shipped with
pin 3 and pin 8 shorted) make the connections with
AWG 24, (0.24 mm
2
) or smaller wire to the pins
indicated in the figure to obtain the desired capability.
The following table describes the signals available on
the connector.
Pins
Name
Description
Electrical
Note
1-com
Start/Stop
Contact closed = Start
Contact open = Stop
Optically isolated
Vlow, max = 10v
Imax = 5mA
Imin (on) = 2mA
Active only in Remote Mode
operation
2-com
Low Speed
Contact closed = Low Speed
Contact open = High Speed
Optically isolated
Vlow, max = 10v
Imax = 5mA
Active only in Remote Mode
operation
3-com
Interlock
Contact closed = Active
Contact open = Inactive
If active allows the pump
running, if inactive stops the
pump.
Optically isolated
Vlow, max = 10v
Imax = 5mA
Imin (on) = 2mA
Active in all modes
4-com
System
Override
Contact closed = Active
Contact open = Inactive
If active allows the pump
running, if active stops the
pump and all the others
connected devices (Fan, Vent
Valve…).
Optically isolated
Vlow, max = 10v
Imax = 5mA
Imin (on) = 2mA
Active in all modes
5-com
Soft Start
Contact closed= Active
Contact open= Inactive
If active before the start
command activates the spft
start procedure. To be used
only at first pump run-up.
Optically isolated
Vlow, max = 10v
Imax = 5mA
Imin (on) = 2mA
Active only in Remote Mode
operation, and in STOP status.