4-51
4-2 Function Mode
4
Functions
Overcurrent Suppression Function
•This function suppresses overcurrent caused by a steep current rise in rapid acceleration.
•You can set whether to enable or disable this function with b027.
Note: If you use the Inverter with an elevating machine, disable this function.
Otherwise, the machine may slide down.
Soft Lock Function
•You can set whether to enable or disable the writing of various code data.
This helps prevent data rewriting due to erroneous operation.
•Select the soft lock setting and performing method from the above table.
•To use a multi-function input terminal, allocate 15 (SFT) to any of multi-function inputs 1 to 8 (C001
to C008).
Parameter No. Function name Data Default setting Unit
b027
Overcurrent suppression
function
00: ÖFF (Disabled)
01: ON (Enabled)
00
Output frequency
Desired
Actual acceleration after
suppression operation
Time
Output current
Time
Suppression level
(about 160% of the rating)
Parameter No. Function name Data Default setting Unit
b031 Soft lock selection
00: Lock (SFT) (Data other than b031 cannot be
changed when terminal SFT is ON)
01: Only FQ (SET) (Data other than b031 and
specified frequency parameter cannot be
changed when terminal SFT is ON)
02: Lock (Data other than b031 cannot be
changed)
03: Only FQ (Data other than b031 and specified
frequency parameter cannot be changed)
10: RUN chg mode (Data other than parameters
changeable during operation cannot be
changed)
01
Related functions C001 to C008, SFT input
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