106
"B" Group: Fine Tuning Functions Section 3-6
This digital input allows you to change the parameter sets of overload restric-
tion. (Please refer to chapter 3 for the detailed description of the overload
restriction function.)
3-6-5 Software Lock Mode
The software lock function keeps personnel from accidentally changing
parameters in the inverter memory. Use B031 to select from various protection
levels.
The table below lists all combinations of B031 option
codes and the ON/OFF state of the [SFT] input. Each
Check 9 or Ex 8 indicates whether the corresponding
parameter(s) can be edited. The Standard Parameters
column below shows access in permitted for some lock
modes. These refer to the parameter tables throughout
this chapter, each of which includes a column titled Run
Mode Edit as shown to the right.
The marks (Check 9 or Ex 8) under the "Run Mode Edit" column title indicate
whether access applies to each parameter as defined in the table below. In
some lock modes, you can edit only F001 and the Multi-speed parameter
group that includes A020, A220, A021–A035, and A038 (Jog). However, it does
B023 Deceleration rate at overload
restriction
Sets the deceleration rate when
inverter detects overload, range is
0.1 to 3000.0, resolution 0.1
8 1.0 sec.
B223 Deceleration rate at overload
restriction, 2
nd
motor
8 1.0 sec.
b024 Overload restriction operation
mode 2
Select the operation mode during
overload conditions, four options,
option codes:
00 Disabled
01 Enabled for acceleration and
constant speed
02 Enabled for constant speed
only
03 Enabled for acceleration and
constant speed, increase
speed at regen.
8 01 –
b025 Overload restriction level 2 Sets the level of overload restric-
tion, between 20% and 200% of
the rated current of the inverter,
setting resolution is 1% of rated
current
8 Rated
curr.
x1.5
b026 Deceleration rate 2 at overload
restriction
Sets the deceleration rate when
inverter detects overload, range is
0.1 to 3000.0, resolution 0.1
8 1.0 sec.
b027 OC suppression selection * Two option codes:
00 Disabled
01 Enabled
8 00 –
"B" Function Run
Mode
Edit
Defaults
Func.
Code
Name Description EU Units
Option
Code
Terminal
Symbol
Function
Name
State Description
39 OLR Overload
restriction
source
changeover
ON Parameter sets b024, b025, b026
are enabled.
OFF Parameter sets b021, b022, b023
are enabled.
Valid for inputs: C001~C007
Required settings: b021~b026
Run
Mode
Edit
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