Lock - PENN Controls - VFD68Bxx - VFD68Cxx - VFD68Dxx - Three‐Phase Motor Speed Controller - VFD68 Three‐Phase Variable Frequency Drive

VFD68 Variable Frequency Drives Technical Bulletin

PENN Controls
Product name
VFD68 Three‐Phase Variable Frequency Drive
Document type
Technical Bulletin
Part number
Document revision
Revision date
  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.