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DN-Series Integrated Programmable Controls
DOAS
REFERENCE
1. If “EXIT” is displayed above the left softkey, press softkey repeatedly until MENU appears
above the right softkey.
2. Press the “MENU” softkey.
3. Use the UP/DOWN arrows to scroll the display until PARAMETERS is selected, then press the
“ENTER” softkey.
4. You will see a numbered list of Parameter “groups”—those numbers are the first two digits
of the Parameters in each group.
5. Press the “SEL” softkey to view all the Parameters in each Group. Use the UP/DOWN buttons
to scroll through the parameters. As each Parameter is selected, its value will be displayed.
16.5.1.3 Locking and Unlocking Parameters
VFDs are shipped locked to prevent accidental changes to parameter settings. If changes
to factory parameter settings are desired, the VFD will need to be unlocked for editing the
settings.
To unlock all Parameters if Parameter 1602 reads LOCKED:
1. Select Parameter 1603 PASS CODE: press “EDIT” softkey.
2. Use the UP/DOWN buttons to scroll to 358: press “SAVE” softkey (the entry will automatically
revert back to 0); press “EXIT” softkey.
3. Scroll up to Parameter 1602 PARAMETER LOCK which reads LOCKED; press “EXIT” softkey.
4. Scroll to OPEN; press “SAVE” softkey; press “EXIT” softkey
Parameters are now unlocked. You can view and change them.
To lock Parameters after changes are made if Parameter 1602 reads OPEN:
1. Select Parameter 1603 PASS CODE: press “EXIT” softkey.
2. Use the UP/DOWN buttons to scroll to 358: press “SAVE” softkey (the entry will automatically
revert back to 0); press “EXIT” softkey.
3. Scroll up to Parameter 1602 PARAMETER LOCK which reads OPEN; press EXITON” softkey.
4. Scroll to LOCKED; press “SAVE” softkey; press “EXIT” softkey.
Parameters are now locked. You can view them but you cannot change them.
Change VFD Parameters When Unlocked
1. Select the Parameter you want to edit. Press the “EXIT” softkey.
2. Use the UP/DOWN arrows to scroll through the available settings for that Parameter.
3. Press the “SAVE” softkey to set the Parameter to the selected value.