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VFD68 Variable Frequency Drives Technical Bulletin

Product
Document type
Technical Bulletin
Document revision
C
Revision date
2019-08-09
Part number
24-7664-3051
  1. Set the parameter restriction level as shown in Table 1.
    Table 1. Set Password Restriction Level (P.296)
    P.296 Setting Restriction of Password Unlock Error P.297 Display
    1 to 6 No restriction Always 0
    101 to 106 Restricted at fifth error1 Displays error count (0 to 5)
  2. Enter a four-digit number (1000 to 9998) as a password.
    • When a password is registered, parameter reading and writing is restricted with the restriction level set in P.297 until unlocking.
    • After registering a password, a read value of P.297 is always 0 to 5.
    • When a password-restricted parameter is read or written, LOCd appears on the display.
    • Even if a password is registered, parameters that the VFD itself writes, such as VFD Parts Life, are overwritten occasionally.
1 If the password unlock error has occurred five times, see Perform a Parameter All Clear to unlock the restriction. Entering the correct password after the fifth incorrect entry has no effect.