Woodward 8440-2028
Woodward 8440-2028
Woodward 8440-2028
Woodward 8440-2028
Woodward 8440-2028
Woodward 8440-2028
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8440-2028

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Woodward 8440-2028 is an IKD 1 digital I/O expansion board with eight isolated inputs, eight potential-free relay outputs and CAN communication.
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Technical specifications for 8440-2028

  • Manufacturer:
    Woodward
  • Part Number:
    8440-2028
  • Product Family:
    IKD 1 Series
  • Product Type:
    IKD 1 Digital I/O Expansion Board
  • Stock:
    1
  • Supply voltage range:
    6 to 36 V DC
  • Maximum power consumption:
    3 W
  • Digital input points:
    8 isolated points
  • Digital input isolation:
    Galvanically isolated
  • Nominal input voltage:
    12/24 V DC
  • Digital input operating range:
    6 to 32 V DC
  • Digital input resistance:
    Approximately 6.8 kOhm
  • Relay output points:
    8 potential-free points
  • Relay contact arrangement:
    Changeover contact with NO, common and NC terminals
  • Relay contact material:
    AgCdO
  • Relay general-purpose AC load:
    2.00 A at 250 VAC
  • Relay general-purpose DC load:
    2.00 A at 24 VDC; 0.36 A at 125 VDC; 0.18 A at 250 VDC
  • Relay inductive AC rating:
    B300
  • Relay inductive DC load:
    1.00 A at 24 VDC; 0.22 A at 125 VDC; 0.10 A at 250 VDC
  • CAN interface:
    Galvanically isolated CAN bus
  • CAN continuous isolation voltage:
    100 V DC
  • CAN isolation test voltage:
    1,000 VAC for no more than 5 seconds
  • CAN node ID range:
    0 to 31; default 12
  • CAN baud-rate choices:
    125, 250 or 500 kBaud; default 250 kBaud
  • CAN error trigger time:
    0.00 to 9.98 s; default 2.5 s
  • Service interface versions:
    RS-232 and USB
  • Service interface signal level:
    5 V
  • Direct-configuration connection:
    RJ45 socket for DPC cable
  • Storage temperature:
    -40 to 85 deg C for P/N 8440-2028
  • Operating temperature:
    -20 to 70 deg C
  • Relative humidity:
    95%, non-condensing
  • Degree of protection:
    IP20
  • Terminal conductor capacity:
    Up to 2.5 mm2
  • Recommended terminal torque:
    0.5 Nm
  • Permitted conductor:
    60/75 deg C copper only
  • Certification:
    UL/cUL Listed for Ordinary Locations, File 231544
  • Weight:
    0.36 kg
  • Estimated shipping dimensions:
    16.8 x 12.8 x 5.1 cm
  • Tariff Code:
    8537101190
  • Country of origin:
    USA
  • Place of shipment:
    Xiamen,Fujian,China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

More Information

Overview Manuals Field I/O CAN Setup Relay Duties Product Applications

Features:

  • IKD 1 expansion unit with eight isolated inputs.
  • Eight potential-free relay outputs for field switching.
  • CAN interface links the I/O unit to the controller.
The 8440-2028 operates from a documented 6–36 V DC supply.

Input, relay and CAN wiring must follow the Woodward IKD 1 manual.

Node addressing and bus termination are checked during commissioning.

Apter Power supports exact-part quotation, Woodward 8440-2028 IKD 1 documentation and controller-matching guidance.
Woodward 8440-2028 IKD 1 Digital I/O Expansion Board Manuals,Datasheets,Link Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
  • Eight galvanically isolated discrete inputs accept field signals.
  • Eight potential-free relay outputs provide switched contacts.
  • Compare field voltage and relay load with the individual input and contact ratings.
  • The isolated CAN interface carries expansion I/O data.
  • Set the CAN node identifier and baud rate for the connected controller.
  • Verify network wiring and termination before functional testing.
  • Check AC and DC relay duties separately in Woodward Manual 37135.
  • Include load inrush and switching frequency in the contact-duty review.
  • Do not exceed the documented terminal conductor and torque limits.
  • Additional contact monitoring in a generator-control cabinet.
  • Relay switching for supported controller commands and annunciation.
  • CAN-connected expansion where the installed Woodward controller supports IKD 1.
Description
8440-2028 is a Woodward IKD 1 digital I/O expansion board for generator-control systems. It provides eight isolated discrete inputs and eight potential-free relay outputs through a CAN-connected expansion unit.

8440-2028 operates from a 6–36 V DC supply. The manual documents an isolated CAN interface, configurable node settings and a service connection for setup; field contacts must be matched to the stated relay ratings.

8440-2028 should be matched to the installed controller and configured CAN node before commissioning. Check the existing wiring, bus termination, relay loads and software settings against the Woodward manual when servicing or replacing the unit.
Alternative Names
84402028 Woodward 8440-2028 Woodward IKD 1 Woodward IKD1M 8440-2028 IKD 1 Digital I/O Expansion Board 8440-2028 Digital I/O Module
Technical notes
Match the CAN address and baud rate to the controller before commissioning. Verify bus termination, relay load limits and input wiring against Woodward Manual 37135.
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FAQS

The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
What should be checked before connecting 8440-2028 to an existing controller?
The controller’s CAN settings, node address, field wiring and termination should align with the Woodward IKD 1 manual.
Can 8440-2028 be commissioned without setting its CAN node?
The CAN node must match the connected controller configuration before I/O commissioning can be completed.
What should be checked when 8440-2028 drives a field relay load?
The actual AC or DC load, including inrush, should be compared with the relevant Woodward relay-contact rating.
How should an intermittent 8440-2028 communication fault be investigated?
CAN wiring, termination, baud rate and node settings are useful first checks because each affects the documented network setup.
Does the 8440-2028 service port replace the controller network?
The service port supports local setup; operating I/O communication remains on the CAN interface.
What should be supplied with an 8440-2028 replacement inquiry?
The installed part number, controller model, CAN settings, wiring and observed fault help Apter Power scope the correct supply.

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