26 VFD66 User Guide
www.johnsoncontrols.com Issue Number: 2
6.6.2 Unlocking a security code
• Select parameter to be edited
• Press the MODE key, the display will flash 'CodE'
• Press the UP key to start entering the set security code.
• Enter the correct security code
• Press the MODE key
• If the correct security code has been entered, the display will flash and can now be
adjusted.
• If the security code has been entered incorrectly, the above procedure should be
followed again.
6.6.3 Re-locking security
When a security code has been unlocked and the required parameter changes made, to
re-lock the same security code:
•Set Pr 10 to LoC
• Press the STOP/RESET key
6.6.4 Setting security back to 0 (zero) - no security
•Set Pr 10 to L2
• Go to Pr 25
• Unlock security as described above.
•Set Pr 25 to 0
• Press the MODE key.
6.7 Setting drive back to default values
•Set Pr 10 to L2
•Set Pr 29 to Eur and press the MODE key. This loads 50Hz default parameters.
or
•Set Pr
29
to USA and press the MODE key. This loads 60Hz default parameters.
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