Work center Id:
If the code exists, data is displayed.
Critical:
If this
box is filled, the work center loads are calculated.
Load analyses are performed for critical work centers, whereas a non-critical work center is not “loaded”. This option accelerates the work load calculation by limiting it to the work centers which are close to saturation.
Description:
Work center description.
Type:
Work center type; you can select this to create a work center from the dropdown list. You cannot change the type of an existing work center.
F: finite capacity,
M: multiple work
center,
I: infinite capacity,
S:
sub-contracting.
Workshop:
Workshop
code to which belonged the work center. This code must have been
defined in the workshop table. Enables to calculate the work
loads by workshop. This field is optional.
Cost Center:
A work center belongs to a
cost center. It has hourly machines and labor rates valid for every
work center that is linked to it.
Calendar:
Calendar
code for the work center (obligatory).
This code must be present in
the calendar table.
Capacity Coefficient:
For the F type work centers, this ratio is equal to the sum of the inverse of the machines run time coefficients. It can be entered even if you do not enter any machines.
For example, if a work center has two machines, the first one has a Run time coefficient of 1.10 and the second one of 0.80, the work center capacity coefficient will be (1/1.10 + 1/0.80) =2.16.
It can be entered if no machine is defined
For the M type work centers, you must enter the number of workstations.
For the I and S type, this coefficient is set at 1. The corresponding field is not shown.
Efficiency Coefficient:
This is
the standard yield ratio of the work center.
It lets you determine the practical capacity of the work center.
The various production dysfunctions are such that a work center is not running at 100 % of its nominal capacity. For instance, if for one given day you indicate in the work center calendar of 8 working hours, if the efficiency coefficient is 85 %, the practical work center capacity will be 6.8 hours.
For the F type work centers, this efficiency coefficient is equal to the average weighted value multiplied by the inverse of the run time coefficient of the machine’s efficiency coefficients.
For example, if a work center has two machines, the first one has a run time coefficient of 1.10 and an efficiency coefficient of .90 and the second respectively of 0.80 and 0.70, the work center efficiency coefficient will be (0.90/1.10 + 0.70/0.80) / (1/1.10 + 1/0.80) = 0.78.
For the I and S type work centers, this ratio is set at 1. The corresponding field is not shown.
Qualification for Setup:
Code of
the qualification in charge of the setup of the machines of the work
center. This code must have been defined in the Qualification
Maintenance window.
Variability
(of setup
times):
Indicates
the variability (standard deviation divide by the mean of setup times for
the work center. This data is used by the Global Flow Analysis
module.
Qualification For Run:
Code of
the qualification in charge of running the machines of the work
center. This code must have been defined in the Qualification
Maintenance window.
Variability
(of run
times):
Indicates
the variability (standard deviation divide by the mean of run times for
the work center. This data is used by the Global Flow Analysis
module.
Wait time before:
This field
makes it possible to impose a slack (in hours) between the arrival of a
batch on the work center and the beginning of the operation during the
infinite capacity scheduling. This slack is taken into account if
the Include work center safety time option is activated
(Preferences window, Planning tab). It can be estimated
automatically by the Global Flow Analysis module.
Display index:
Fix the
order in which the work centers are posted on the machine Schedule.
Can comprise two decimals.
Continuous operations:
If this
box is filled, during the infinite and finite capacity scheduling, it will
be possible to schedule the operations only for a single working period.
If not, operations can spread over several working periods.