Chapter 5. I/O Verification And Calibration; Introduction; I/O Verification - Woodward 723PLUS Technical Manual

Manual 26482
I/O Verification and Calibration
Read this chapter entirely before proceeding with the I/O verification and
calibration.
For the hardware installation and wiring information, refer to the 723PLUS
Hardware Manual, 02877. The hardware manual contains the specific installation
information including wire gauge and shielding requirements.
Do not run the engines during the following calibration except where noted.
Should any of the transducers, sensor, companion 723PLUS control, or field
devices connected to the 723PLUS control's inputs be changed at a later time,
the corresponding input calibration will need to be performed before returning the
engine to normal operation.
The "Companion Control" or "Companion 723PLUS Control" refers to the other
723PLUS control. If you are working on the port 723PLUS control, the starboard
723PLUS control is the "companion". If you are working on the starboard
723PLUS control, the port 723PLUS control is the "companion".
The following calibration procedure uses the default hardware settings for the
analog I/O. Wherever 4–20 mA is mentioned, the appropriate equivalent 0–1 mA
or 1–5 Vdc signal can be substituted instead. For example, if Analog Input #1 has
been configured for 0–1 mA, then 0 mA can be used in place of 4 mA, and 1 mA
can be used in place of 20 mA. The same applies if the milliamp jumper is
removed for 1–5 Vdc input. Then 1 Vdc can be used in place of 4 mA, and 5 Vdc
can be used in place of 20 mA.
If the 723PLUS control response or the Watch Window or hand held readout do
not agree with the information listed, stop and correct the problem before
continuing with the next step. For optional I/O that is not used in the application,
the respective installation and calibration can be skipped. Complete the I/O
Verification before proceeding to the I/O Calibration and running the engine.
Do NOT start the engine(s) at this point. Lock the engine(s) out so they will not
start or attempt to start during the I/O Verification.
Apply 18–40 Vdc power supply [TB1 (+) and TB2 (–)] to the 723PLUS control.
After approximately 20 seconds, the green CPU LED should illuminate. Once the
CPU LED is illuminated, plug the hand held programmer into J1. The hand held
programmer will be used during the I/O verification and calibration.
Woodward
723PLUS Digital Marine Control
Chapter 5.

Introduction

I/O Verification

65