I/O Connections
Table 6 - I/O Function, Connections, Ratings
Label
Function
AI+
Positive connection for transducer
AI-
Negative connection for transducer
Positive side of 24 volt power supply.
V+
Used to power external devices.
Negative side of 24 volt power supply.
V-
Used to power external devices.
Positive connection of Digital Input 1.
I1+
Connect when using an external device to
control Drive.
Negative connection of Digital Input 1.
I1-
Connect when using an external device to
control Drive.
Positive connection of Digital Input 2.
I2+
Connect when using an external device to
control Drive.
Negative connection of Digital Input 2.
I2-
Connect when using an external device to
control Drive.
Output relay (dry contacts) connection.
O1+
Programmed to close when pump is
Running or Faulted.
Output relay (dry contacts) connection.
O1+
Programmed to close when pump is
Running or Faulted.
Positive connection of an RS-485
P
communication device (see Figure 19).
Negative connection of an RS-485
N
communication device (see Figure 19).
Connection
Red transducer wire
Black transducer wire
Positive side of 24V external device, i.e.,
flow switch, moisture sensor, alternator,
etc. Need to complete the circuit with V-.
See Figures 15 and 17.
Typically to I1-, I2-, or O1+. Used with
a flow switch, moisture sensor, alternator,
etc. Need to complete the circuit with V+.
See Figures 15 and 17.
From an external device i.e., flow switch,
moisture sensor, alternator, etc. Requires
complete circuit connection with I1-. See
Figures 15 and 16.
Can be from V- or from the negative side
of an external power supply. Requires
complete circuit connection with I1+. See
Figures 15 and 16.
From an external device, i.e., flow switch,
moisture sensor, alternator, etc. Requires
complete circuit connection with I2-. See
Figures 15 and 16.
Can be from V- or from the negative side
of an external power supply. Requires
complete circuit connection with I2+. See
Figures 15 and 16.
Positive wires of an external device. See
Figure 17.
Positive wires of an external device. See
Figure 17.
Positive wire from RS-485 device.
Negative wire from RS-485 device.
18
18
Rating
24 Volt
(supplied)
40mA maximum
output
Accepts 24VDC
and up to
230VAC
Accepts up
to 5 Amps at
24VDC and
8 Amps at up to
230VAC
*Only non-
inductive loads
Per RS-485
Standard
PN957 (3/23/20)