Energy Menu (Menu 8) - EFD MINAC 25 Twin User Manual

MINAC Systems
USER MANUAL
63860.doc
5.2.7

Energy Menu (menu 8)

This menu enables the operator to see how much energy was used in the last
sequence, both overall and for each segment. It is possible to store the total energy
value (one value per program) and state an allowed energy deviation value (as a
percentage) for comparison against later sequences. The energy check result is
shown on the last line.
F0 Program no
F1 Segment no
F2 Store total energy
Allowed energy deviation
Segment energy (kJ)
Total energy (kJ)
Stored total energy (kJ)
Energy check result
• To select the program and segment numbers, press F0 and F1, respectively, until
the desired number is displayed.
• To store the total energy value, press F2.
• To set the allowed energy deviation value, enter the desired value and press the
enter key.
Return to the Main Menu by pressing F9.
Energy Supervision
The purpose of the energy supervision function is to detect changes in the heating
process when running the sequence function
often caused by changes in the coil position relative to the workpiece or changes in
the workpiece itself (preheating, changes in mass/shape). Fault situations such as
short circuits in the coil can also cause changes in the heating process.
To make use of the energy supervision function, do not run the converter in
the DC power mode. In the DC power mode, the converter itself compensates
for any changes in the heating process.
Total energy is the amount of energy used by the equipment during the last program
run. This value can be used as a reference by the energy supervision function for
later runs. When used as a reference, the allowed percentage deviation value (±)
must be entered into the program memory. Before using this energy supervision
function, install the converter properly and establish a perfect sequence program.
3
To calculate the exact amount of energy transferred to the workpiece, subtract the losses in the
inverter, output circuit and coil.
© For reproduction rights, see cover page.
Revision A
31 January 2005
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. A change in the heating process is
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