Danfoss MCO 305 Design Manual page 76

MCO 305 Design Guide
Memory
As the case maybe which controller is connected,
the function in the first or second group are
enabled. For example if a prior version of a
VLT 5000 is connected, then the first two menu
commands are used. If in contrast a MCO 305
Option is connected, then the four commands of the
second group are used.
Save RAM
The → Save RAM function saves all programs, parameters, and arrays from RAM into EPROM. This corres-
ponds to the SAVEPROM command. This function is usually needed only to save arrays if necessary since
programs and parameters are automatically saved. Any data that have not been saved from RAM into
EPROM will be lost when the controller is powered off.
NB!:
Some very old versions of controllers did not automatically save programs in EPROM. For these
controllers, use this function to save the programs into EPROM.
Delete EPROM
The → Delete EPROM function will reset all parameters to their initialization values and delete all arrays and
programs. The controller is reset to the original factory setting. However, this is done only after the
controller has been turned off and on again.
NB!:
Remember the following when you delete the EPROM:
1. Check whether you have saved all the necessary APOSS programs on the computer. These will need
to be reloaded into the controller again if necessary after the controller has been turned back on.
2. Check whether you have saved the controller configuration into a backup file on the computer
(using Parameters → Save to file). With this file, you can reload the previous parameters and arrays
if necessary.
3. Click on Memory → Delete EPROM.
4. Re-load the necessary configuration parameters and APOSS programs in the controller.
User Parameters, Arrays, All Appl.Data, Option Parameters -> EPROM
Use the corresponding function to save → User Parameters, → Arrays, → All Application-Data (which also
contains the application program in addition to the user parameters) or → Options Parameters(MCO 305
parameters) individually in the LCP-EEPROM.
Reset
As the case maybe which controller is connected,
the function in the first or second group are
enabled. For example if a prior version of a
VLT 5000 is connected, then the first two menu
commands are used. If in contrast a MCO 305
Option is connected, then the four commands of the
second group are used.
76
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