SAMUEL JACKSON Vulcain, Руководство по обслуживанию

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PAGE 30 of 79 VULCAIN OIL-FIRED HEATER
LAST UPDATED: JAN 22-2019 COPYRIGHT © SAMUEL JACKSON, INCORPORATED 2018 ALL RIGHTS RESERVED
Troubleshooting
Using PLC input and output lights
Knowing the input and output conditions of the PLC can help diagnose problems, often
without the need for an electrician or a voltmeter. Most of the voltage inputs and outputs
(such as voltage signal showing on/off condition of a switch) have small red lights that
are shown on the face of the PLC. The “
ELECTRICAL SCHEMATIC WITH PLC
INPUTS/OUTPUTS FOR VULCAIN HEATERS
”, included in this manual and on the
inside door of the cabinet, show the input/output numbers for the PLC.
Input lights for X0 through X23 are shown on the PLC. Input lights for X100 through
X107 are not shown on the PLC so a screen on the color touch panel shows all of the
input conditions. A green light beside the input number indicates an “on” condition.
Press the magnifying glass
on the Home Screen to access the Heater Status screens, then go to the second page.
Input lights for inputs
X0 through X23
Output lights for outputs
Y0 through Y23
Inputs on this card are
for X100 through
X107 and do not have
indicator lights
Heater Status Screen, Page 2,
showing input conditions
A green light next to an input
means that input is “on”.