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Diesel Generator Operation Manual Control System Part 1-2
Control System
1.1.4 Control Panel - Switch Panel
WARNING: SOME PANEL INTERNAL COMPONENTS MAY HAVE LIVE EXPOSED TERMINATIONS EVEN IF THE GENERATOR SET IS NOT RUNNING. ISOLATE ALL EXTERNAL ELECTRICAL SUPPLIES PRIOR TO ACCESS OF THE CONTROL PANEL. |
The switch panel contains the following components:
Emergency Stop Button:
Push the button in for Emergency Shutdown of the engine. If the engine is not running, pushing the button in will prevent the starting of the engine, regardless of the start signal source (local or remote).
To reset:
•Pull, or twist and pull, the button out.
•Turn the Off/Manual/Auto switch to Off (O).
•Press the front panel Fault Acknowledge button.
•Select Manual or Auto, as required.
Caution:Ensure that the cause of the emergency is fully investigated and remedied before an emergency stop Reset, and generator set Start are attempted. |
Note:Emergency Stop shutdown status can be reset only at the operator control panel.
Remote Start Indicator:
This green lamp is lit whenever the control is receiving a Remote Run signal. When this lamp is flashing, it indicates a load demand stop mode.
Not in Auto Indicator:
This red lamp flashes continuously when the Off/Manual/Auto switch is not in the Auto position. (If it is in the Auto position and the lamp is flashing, this indicates that a service is required).
Shutdown Status Indicator:
This red lamp is lit whenever the control detects a Shutdown condition. The generator set cannot be started when this lamp is on. After the condition is corrected, Shutdown indicators can be reset by turning the Off/Manual/Auto switch to the Off (O) position, and pressing the Fault Acknowledge button.
Dependent upon the specific fault that occurs, the engine may or may not shut down immediately. A fault that could cause engine damage causes an immediate engine shutdown (bypasses engine cool–down sequence). All other faults would allow the engine to run during the cool–down sequence before engine shutdown. In this case, the Shutdown Status Indicator blinks during the cooldown period.
Warning Status Indicator:
This yellow lamp is lit whenever the control detects a Warning condition. After the condition is corrected, warning indicators can be reset by pressing the Fault Acknowledge button. (It is not necessary to stop the generator set if the fault becomes inactive during generator set operation).
Fault Acknowledge:
Press this button to acknowledge Warning and Shutdown messages after the fault has been corrected.
To acknowledge a Warning message, the Off/Manual/Auto switch can be in any position. (It is not necessary to stop the generator set to acknowledge an inactive Warning condition). To acknowledge a Shutdown message with this button, the Off/Manual/Auto switch must be in the Off
(O) position.
This button is also used to blink a fault code if the Shutdown or Warning Status Indicator is lit. (This function is used when the control does not contain a graphical display). Refer to Reading Fault Codes in Section 7 -Troubleshooting, which describes how to use this button for interpreting fault codes.
Panel Lamp/Lamp Test Button:
Press this button to turn the panel lamp on or off.
Press and hold down this button for a minimum of three seconds to turn all control panel LEDs on, to make sure all lamps illuminate. The illumination will shut off after releasing the button.
Exercise Button:
Press this button to initiate a pre-programmed exercise sequence. The Off/Manual/Auto switch is used in conjunction with this button to enable this function (refer to Section 5.6.5 Exercise Start).
Manual Run/Stop Button:
This button starts and stops the set locally and will bypass Time Delay to Start and Stop sequences. The Off/Manual/Auto switch must be in the Manual position to enable this button.
Off/Manual/Auto Switch:
Manual position enables the use of the switch panel Manual Run/Stop button.
Auto position enables start/stop control of the engine from a remote location. (Disables the use of the switch panel Manual Run/Stop button).
Off (O) position prevents the starting of the generator set (local or remote). If moved to Off (O) during set operation, an immediate engine shutdown will be initiated (bypasses cool–down timers). This hot shutdown should be avoided, if possible, to help reduce unnecessary engine wear. Hot shutdowns are logged by the system software.
A key function is provided to prevent unauthorised operation of the switch.
