Woodward Vertex-Pro, Installation/Hardware Manual

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Vertex-Pro Motor-Driven Compressor Control Manual 26489V1
84 Woodward
9.3.6—Replacing an I/O Cable
This procedure will shut down the control system.
If power has not been removed from the control system, power will
be active at the module and also at the cable connectors. It is
recommended that the cables not be removed until after the module
has been unseated. If cables are removed with power applied, care
must be used to avoid shorting cable connector pins.
HIGH VOLTAGE—If the high voltage FTM is being used with the 48/24
Discrete I/O module, and there is 125 Vdc on the FTM terminal
blocks, there will be 125 Vdc on the FTM sub D connectors and on
the cable when it is connected to the FTM. For this reason, all power
should be removed from the FTM terminal blocks before
disconnecting any cables.
1. Remove the cable saddle at the top of the chassis section. The saddle can
be lifted off by removing the two screws which hold it in place.
2. Unscrew the module’s captive-screw fasteners (one at the top of the module
and the other at the bottom), and release the module by simultaneously
pressing the top module handle up and the bottom module handle down.
3. Unseat the module from the motherboard by pulling the module straight out
along the card guide slots until it is approximately 25 mm (1 inch) from the
motherboard.
4. Disconnect the I/O cable from the module, and secure the ends to avoid
damage or shorting of pins. The I/O cable uses a slide latch (to disengage,
slide the latch towards the top of the module).
5. Disconnect the I/O cable from the FTM or Relay/Discrete Input module. This
may require removal of the cable shield termination clamp that is next to an
FTM in a commercial Marine installation.
6. Install the replacement I/O cable and connect it to the FTM or
Relay/Discrete Input module, securing the end to avoid shorting or damage
to pins. Remember to install the cable shield termination clamp that is next
to an FTM in a commercial Marine installation.
7. Connect the I/O cable to the module. The I/O cable uses a slide latch (to
engage, slide the latch towards the bottom of the module). Verify that the I/O
cable is connected to the correct cable connector.
8. With even pressure exerted at the top and the bottom of the module, seat
the module into the motherboard.
9. Tighten the two captive-screw fasteners (one at the top of the module and
the other at the bottom).
10. If power was removed, reapply power.
11. Put the CPU module back in run mode.
12. Verify that the new MicroNet module is working correctly.
13. Reinstall the cable saddle.