Skip to Content
0

How to stop unwanted triggering of work orders for performance based maintenance plan?

Apr 12 at 07:37 AM

34

avatar image

Dear fellows,

I have scheduled a performance based maintenance plan based on running hours. I updated the measuring document with the current running hours of each equipment. The trouble is maintenance orders are getting generated even without the counter hitting the set point frequencies/running hours.

For eg. One of my equipment is at 2 running hours. The maintenance task list does not have a maintenance scheduled at 2H. However, the system is triggering work orders.

I read somewhere that this is due to annual estimate of the running hours and incorrect setting of dead line monitoring.

Can some one explain how to rectify this fault and properly set the dead line monitoring?

10 |10000 characters needed characters left characters exceeded
* Please Login or Register to Answer, Follow or Comment.

3 Answers

Suleyman Bulus Apr 12 at 02:42 PM
0

Hello James,

Annual estimate functions as below,

Say for example you have a counter with annual estimate 360. That means on average this counter runs 1 unit every day. (360/360).You create a perf. based. maint. plan to this counter and set a cycle of 2 unit. Then you enter a measuring document and schedule the maint. plan. 2 days later, if you do not create any measuring document, even with 0 difference, when you schedule the plan system will generate a call since you define your annual estimate as 360. If you create measuring document with 0 difference then no call will be generated. This is the standard behavior and I am sure that you can find a lot of blogs, posts about it. For example check this one: https://blogs.sap.com/2014/06/17/behavior-of-performance-based-plan-in-sap-plant-maintenance/

You have two options to discard the functionality

1- Make sure that you create measuring document every once in a while, (every day or every week) even there is no actual difference in reading.

2- Define an unrealistic annual estimate value so that no geneartion is possible due to low annual estimate. Like 10 units per year.

Share
10 |10000 characters needed characters left characters exceeded
James Tomy Abraham Apr 19 at 07:56 AM
0

Hi Suleyman,

Thanks for your detailed answer. Appreciate your time and expertise so much!!

I am following a strategy plan (IP40) for perf. based maint. plan and not a single cycle plan. Hence, I have a task list with frequencies set at different running hours based on the manual. Do you have any idea how the dead line monitoring works?

My understanding of your answer is:

If I change my maintenance plan now (IP02) and alter my annual estimate from 3000RH to an unrealistic value like 10 , then the issue won't repeat.

If I update the measuring document every week, then the issue will be resolved but this is tough work and can be forgotten easily. Can this be automated?

Show 1 Share
10 |10000 characters needed characters left characters exceeded

Hi James,

In Deadline montoring (IP30) is the Interval for Call Objects are maintained ? If you have maintained any specific value, system will call the orders within that period.

For Performance Based Plans, there is no issues on when you are entering the documents, but system will trigger the order when the particular counter is reached.

Annual estimate is a trigger to understand when the call object is called for the scheduling period. For a year it will be 365*24 = 8760 hrs. For a 3000RH package, every 125 days, you will get a order. If your Annual estimate is less than or more, the dates will be changed accordingly

In your case, check the Maintenance Scheduling, check the next counters it has planned to call the order. If this has strategy, you need to check whether the correct package is assigned and it is picked.

You can share screenshots of Plan / scheduling parameters / scheduling overview / Packages assigned in plan etc, so we can also check and update you.

Regards

Terence

0
James Tomy Abraham 2 days ago
0

Dear Maria,

I have all the pictures you need. For some strange reason, I am not able to complete the upload function on this forum. Can I send this to your email address instead?

Show 1 Share
10 |10000 characters needed characters left characters exceeded

Hi James,

If you cant upload pic, answer the things i have asked.

Regards

Terence

0