16-Point 24V DC Sinking or Sourcing Digital Input Module
The 1762-IQ16 adds sixteen 24V DC inputs to a compatible MicroLogix expansion system. Its inputs are arranged as two isolated groups: points 0...7 and points 8...15, each with its own common. Bit positions 0...15 correspond directly to input terminals 0...15 in the input word.
16 DIGITAL INPUTS
10...30V DC
2 ISOLATED GROUPS
Signal and Electrical Profile
Sinking or Sourcing Wiring The two commons support field-device wiring for sinking or sourcing operation when polarity is applied correctly.
Input Thresholds 2 mA minimum at 10V DC, 8 mA nominal at 24V DC and 12 mA maximum at 30V DC.
Expansion Position Expansion I/O begins at slot 1; the power-supply distance rating is 6.
Parameter
Value
Signal delay
8 ms maximum ON delay and 8 ms maximum OFF delay
Nominal impedance
3 kohm
Bus current draw
70 mA at 5V DC (0.35 W)
Heat dissipation
5.4 W at 30V DC; 4.3 W at 26.4V DC
Dimensions
90 x 40.4 x 87 mm without mounting tabs
Confirm 1762-IQ16 Before Ordering Send the installed system, terminal arrangement, field voltage, quantity and destination.
Balanced density with two commons and 24V DC sinking or sourcing compatibility.
1762-IQ8
8 DC inputs, one group
Lower point count and lower backplane demand for small expansions.
1762-IQ32T
32 DC inputs
Higher density; field wiring, derating and expansion capacity must be reviewed.
Selection point: Confirm controller expansion support, module position, two-common field wiring, 24V DC device polarity and the permitted temperature/voltage combination.
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After-delivery support: Contact us within seven days if an issue occurs. Keep the item in its original condition and provide the return reason. Return or replacement can be arranged after receipt and inspection; return freight is paid by the buyer.
1762-IQ16 Buyer FAQ
Can 1762-IQ16 accept both sinking and sourcing field devices? Yes, when the commons and supply polarity are wired for the selected current direction.
Are all 16 points of 1762-IQ16 in one common group? No. Inputs 0...7 and inputs 8...15 form two separately grouped sections.
Can 1762-IQ16 operate at 30V DC across the full temperature range? No. The permitted upper voltage is reduced to 26.4V DC under the higher-temperature derating condition.
How is 1762-IQ16 addressed in a MicroLogix expansion system? Expansion I/O starts at slot 1, and bits 0...15 map to field inputs 0...15.
What should be checked before ordering 1762-IQ16? Verify controller compatibility, available expansion position, power-supply distance rating, sinking or sourcing wiring, voltage range and two-common grouping.
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