True Professional Engineer
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Thursday, July 9, 2015

2015-07-Another busy day

Due to the problem faced amidnight on roll oven, I can carried out another training to the staffs on the ignition cycle of the burners system on the Baker Thermal Roll oven.

Starting on the importance of purging cycle related to safety issue. Follow up with the reason of having zero pressure regulator again to minimize gas leakage potential into the plant.

As gas pressure is at zero atmospheric pressure, then the function of air fuel mixing valve, and to "suck" gas into the burner.

The cycle of igniting follow by flame detection system was explained too.

After that, get related personnel to carry out necessary service to rectify problem of oven firing up to temperature slow.

Another training carried out today is to train three existung engineer on linking notebook to HMI, uploading runtime program from HMI, import to AB factory talk view studio, converting into latest version of runtime and download back to HMI.

Trouble shooting steps were trained to another team on the refrigeration system and how to check the signal feed back from pressure transducer.

Wednesday, July 8, 2015

2015-07-08, train on panelview plus

I was reported that the AllenBradley panelview plus 600 on two of the packing machines.

On checking with them, the message displayed was FATAL FAULT 3A.

While tracing, noted the terminal status indicator has blinking green comm and stead red Fault. As per manual, advice to replace the panelview.

I further check and found that fault 3A is a start up fault and related to stuck touch. Thus I think it may means the touch screen.

Notices that they were some old units of same panel view. Thus decide to dismantle and make use of the old panel view touch screen.

After the action, I managed to re use one of the unit.

With such action, a saving of RM1200 for suck repair because buying and replacing the unit will cost that much.

Trouble shooting for mechanically jammed Serpentine oven

This is a recent incident in one of the plant with an Auto-bake Serpentine oven. A picture of the Serpentine oven is downloaded from the Aut...