[0:14]Hello and welcome back friend. This is our third class and in this class we will learn about various color coding which is used in Emmy engine. You have to remember all color coding in order to take quick decision. So let's start. Learning objective. In this session, we will learn about various color coding and their uses. We will learn about the following colors and their usage. Light blue, dark blue, yellow, red, green, pink, and light grey/white. All colors are used in background or in text. Please remember, these colors are used only in background or in text.
[1:06]Our first color is light blue. So light blue look likes this. Now we will see its usage. So first one is displays data set by ECS software. Here I want to tell you that ECS is divided into two parts, ECS hardware and ECS software. So here I am talking about the ECS software. ECS hardware are MOPs, various MPCs, LOPs, etc. Here I am talking about specifically ECS software. Software you know that it is a computer program which generate command signal etc. and some commands are executed by various MPC which ultimately control the engine. Next displays data set by operators like when we want to change the sulfur percentage, fuel calorific values, putting some limits, etc. So these are data set by operator. So this will be shown with the light blue background. Next is displayed status/data (not fixed) generated by ECS. Means any data which is varying in nature and displayed by the ECS will be of light blue background. Next is dark blue. So dark blue color will be like this. Here we will see about the various usage of dark blue background. So first one is display data sent by sensors like pressure, temperature, torque transmitters, etc. Then this data will be having the dark blue background. Next displays switch position like open, close, shut, running, stop etc. So whenever you get any information about any machinery that this is in stop condition or in running condition or open or shut or closed like this, so that will be shown with the dark blue background. Next displays global data means permanently fixed data. So many datas are there which are permanently fixed. So I will show you in a while. Fourth during changing the value of some parameters, current value will be shown by light blue and the new value will be shown by the dark blue. So these are the mainly four areas in which dark blue background is used. Next. Here we will see some examples of dark blue background and light blue background. Like here we can see that here it is written standby. This is basically showing the main status of the engine and this is generated by the software ECS. So this is having the light blue background. Another is command, this is also generated by the software. Means presently the control is in ECR, this is also having the light blue background. Next you can see speed RPM, speed modifier. It is showing that stop, means presently the engine is stop. So this is also generated by the ECS. Next one is the running mode, economy, governor mode, torque control. These are selected by the operators. So this is also having the light blue background. Now we will talk about this area. So you can see that start air pressure, inlet oil, hydraulic oil and scanner, these are showing the pressures. So this pressure basically comes from the pressure transmitter. So here suppose a liquid is there in the pipeline and this pressure transmitter is sensing the pressure and sending data to the ECS. ECS displaying over the MOP. So these all type of data which is sent by temperature, pressure, torque transmitters, etc. are having the dark blue background. You can see over here, these are having the dark blue background. Now we will move to next this sort of information. Here you can see that HPS auto lubricator stopped, auxiliary blower auto running, on-off EGB closed. So this sort of information is generated by the relays. So you can see that how relays operates and according to the operation of the relays, what information it sent to the ECS. Means when it becomes normally open or normally closed, then the signal goes to ECS and ECS accordingly convert it into the information like running, stop, closed, auto, manual, etc. So I hope you understand by seeing this animation that how this sort of signal generate.
[6:51]Now we will move to here. Here you can see that this is a set point and this is actual. At present the engine is stopped. So here set point means when any command is given from the telegraph, then it will convert into the set point like any RPM, suppose 70 RPM, 60 RPM, etc. So this is basically generated by the ECS, that's why it is having the light blue background. But the actual means this actual is coming from the pickup sensor, means RPM sensor which are installed on the flywheels and also taco sensor generates this RPM signal. So these are coming from the external source, so this is off the dark blue background. Same is for here also. So now we are moving to our next example. Here HPS mode is auto because this is generated by the software. Limiter activated, that means this signal is coming from the HPS torque limiter and then after processed this is appeared, so this is why it has a dark blue background. This is also a pressure related, this is also pressure related, also pressure related. Now this is having the two backgrounds, one is dark blue and another one is light blue. Here this light blue is generated by the software, but here this 100%, 50%, 50% and this ahead or astern, these are basically the binary type of swash plate. Means either it will run in ahead or in astern.
[8:46]So all these are coming from this sort of transmitter. This is called the torque transmitter which is installed on the swash plate pump, and this swash plate pump is basically driven by the engine. So this 100%, 50%, 50% these are coming from the this unit. So this ahead or astern signal also appear from this sort of unit, instead of this proportional type of transmitter, all type of switch is fitted. Here you can see that this is generated by ECS, there is no such a switch installed in this system. This is basically sensing the switches inside the MPC, so it is showing in light blue background. Similarly here this is master or this is slave, it is selected by the operator and presently the condition of these pumps are generated with the help of relays and showing this is running and this is in stop condition, so having the dark blue background. Here you can see that although these data are entered by the operator, it is having the dark blue background instead of light blue background. So somewhere you can find that instead of light blue background, dark blue background is used. Now here you can see that this is the current value which is having the light blue background and here new values which are going to be entered, it is denoted with the dark blue background. So I hope that I have given the various sort of example with the light blue background and dark blue background and you must have understood that where all the light blue background is used and where all those dark blue background is used. Now we'll come to one main point that until light and dark blue boxes color doesn't change, it is considered to be normal. Okay, means anywhere if you find that this is dark blue background or this is light blue background, till then you must understand that there is no need to worry, parameter is still normal. For example, here you can see that this is having the light blue background. All, but number two unit exhaust ball operation is stopped and then this blue background is turned into the yellow background. That means you have to pay some attention. I hope you understand. Here you can see that chief maximum speed RPM is 190, here you can change the RPM. This can be changed by the operator, so having the light blue background. Here this data is fixed, you cannot change it. That's why it will have the dark blue background. Similarly, chief maximum load 110%, you can change it to any percent you want, but here engine maximum load is fixed at 110%. So this is having the dark blue background. So wherever there is a fixed data, this will have mostly in 95 or 99% cases that it will have the dark blue background. If it can be changed by operator, then it will have the light blue background. Now our next color is yellow. Means indicates that value has increased from normal but alarm limit has not yet reached. Second is gives signal for paying attention / pre-warning. Third for acknowledged active alarm. So this yellow background are used for all these three purpose. So here we will see some examples.
[13:21]So here regarding this, I have already explained. Now moving to this area, this is also called a information bar. And sometime you will find a warning message appear on it. So all warning message are appeared with yellow background. Please remember that all warning messages in MOP appears with a yellow background. Now come to here, here this is system option and it has a two level, one is chief and another is operator. In chief level, some authority has been permitted to chief engineer in order to do some alteration in parameters, but in operator level, only a limited access is permitted. In normal day-to-day operation of engine, the system option must be in operator level and not in chief. And hence here, warning sign has appeared as yellow color. Whereas you can see here, in operator level, no warning sign is showing. Now come to here, here you can see that this is the mean panel and this is the deviation panel. In mean panel, when the peak pressure gets deviate to a certain value either positive or in negative, then dark blue background get converts into the yellow just for the warning purpose. Here also the same thing. Now come to here, here you can see that this is having the yellow background. That means it is indicating that still three number of acknowledged active alarm is present. Regarding that I will tell you later but here you can also see that yellow background is appeared, that means it is just for the attention to the operator that's please have a look and try to fix it. Now you can see that this alarm has appear over here at this time and this date. After a while it was acknowledged and the time is here and date is here. So when it is acknowledged, then the color of this text is change from red to yellow. Now our next color is red. Red means indicates that particular channel is in alarm state. Means whenever you get any alarm, you will must find it with the red background. Second, high pressure of hydraulic system is always denoted with the red color. Third, in alarm event log all new coming alarms are appeared with red text. Now we'll see some example of the red color. So here this alarm has appeared, new alarm, so it is having the red background. Second one is the HPS high pressure hydraulic line. It is shown by the red color that is normal universal accepted color coding method which is used in the hydraulic system. So this is the normal. Now next here you can see that any new alarm appeared is having the red color which will find in event log. Now we are moving to our next color that is a green. Green indicates that now particular channel's alarm status has turned into normal. So we will see some example. Here you can see that alarm has appeared, then it was acknowledged and the same alarm has now become normal and then it turn into the green color. Now our next color is pink. Pink means it may appear on both text and digit. Second means global parameter inconsistency. So I will just explain about global parameters. Third one is means MOP or MPC is hanged and need to be reset. But there is some criteria for it. Means suppose this pink color has appeared for sometime and there is some problem occurring in the engine, then you have to stop the engine and MOP or MPC need to be reset. So now I am going to explain the global parameter inconsistency. Here now I will give the definition of the global parameter. Global parameter means in computer program a particular data which is accessed by the several function is called global parameter. Means any particular data which is accessed by the several other function is called the global parameter. Now here you can see that this is a one data I have shown here as a hexagon. And this data is being accessed by the several function F1, F2, F3, F4 and F5, F6 etc. So now I am explaining it with the one example. Like now here you can see that daily update of population of a country is published on the official website. Now this data is being accessed by the Google, by the Wikipedia also and by the local news channels also. So this become the global parameter and it is being accessed by the several other function. In the same way, several datas are there in the software which can be accessed by different function and when these datas are not reachable to any of the function, then it will be appeared with the pink background. So I hope this global parameter inconsistence is clear and whenever you find pink color appeared, you have to be ready to take further action.
[21:14]Now our next color is light gray/white/light blue. Light blue I have already explained, but here there is a specific reason behind putting this light blue color. The function of these three colors is self diagnostic/supervision/exercise function of ECS. Means so many ECS functions are there which is not related to the alarm system. These are some watchdog function, some self diagnostic or supervision or exercise or various kind of other ECS functions are there which appeared on the MOP and these channel will have always background with either light gray or white or light blue. So just for example, here you can see that this exercise function activated, this channel is basically a system generated channel, it has nothing to do with alarm system. You will find that this has a light blue color text, but actually this is light gray color and just because of the dark blue background, it is appeared that this color text is light blue. So several other function you will find with all these three colors on MOP, which basically reflects that these functions are related to the ECS internal function. So that's all for the color coding. Thank you for watching this video.
[23:19]Bye-bye, take care, have a nice day.
