16
PN957 (25-06-20)
I/O CONNECTIONS
Table 6 - I/O Functions, Connections, Ratings
Label Function Connection Rating
AI+ Positive connection for transducer Red transducer wire 24 Volt (supplied)
AI- Negative connection for transducer Black transducer wire 24 Volt (supplied)
V+
Positive side of 24 volt power supply. Used to power
external devices.
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.
40mA maximum output
V-
Negative side of 24 volt power supply. Used to power
external devices.
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.
40mA maximum output
I1+
Positive connection of Digital Input 1. Connect when
using an external device to control Intellidrive.
From an external device i.e., flow switch, moisture sensor,
alternator, etc. Requires complete circuit connection with I1-.
See Figures 15 and 16.
Accepts 24VDC and up to
230VAC
I1-
Negative connection of Digital Input 1. Connect when
using an external device to control Intellidrive.
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.
Accepts 24VDC and up to
230VAC
I2+
Positive connection of Digital Input 2. Connect when
using an external device to control Intellidrive.
From an external device, i.e., flow switch, moisture sensor,
alternator, etc. Requires complete circuit connection with I2-.
See Figures 15 and 16.
Accepts 24VDC and up to
230VAC
I2-
Negative connection of Digital Input 2. Connect when
using an external device to control Intellidrive.
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.
Accepts 24VDC and up to
230VAC
O1+
Output relay (dry contacts) connection. Programmed
to close when pump is Running or Faulted.
Positive wires of an external device. See Figures 17 and 18.
to 230VAC
*Only non-inductive
loads
O1+
Output relay (dry contacts) connection. Programmed
to close when pump is Running or Faulted.
Positive wires of an external device. See Figures 17 and 18. Per RS-485 Standard
P
Positive connection of an RS-485 communication
device (see Figure 19).
Positive wire from RS-485 device. Per RS-485 Standard
N
Negative connection of an RS-485 communication
device (see Figure 19).
Negative wire from RS-485 device.
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