6-154
îš‹ Prohibiting Writing Constants from the Digital Operator
If you set A1-01 to 0, you can refer to and set the A1 and A2 constant groups, and refer to drive mode, using
the Digital Operator.
If you set one of the constants H1-01 to H1-06 (multi-function contact input terminal S3 to S8 function selec-
tion) to 1B (write constants permitted), you can write constants from the digital operator when the terminal
that has been set is ON. When the set terminal is OFF, writing constants other than the frequency reference is
prohibited. You can, however, reference constants.
îš‹ Setting a Password
When a password is set in A1-05, if the set values in A1-04 and A1-05 do not match, you cannot refer to or
change the settings of constants A1-01 to A1-03, or A2-01 to A2-32.
You can prohibit the setting and referencing of all constants except A1-00 by using the password function in
combination with setting A1-01 to 0 (Monitor only).
îš„Related Constants
Con-
stant
Number
Name Description
Setting
Range
Factory
Setting
Change
during
Opera-
tion
Control Methods
MEMO
BUS
Regis-
ter
V/f
V/f
with
PG
Open
Loop
Vec-
tor
Flux
Vec-
tor
A1-01
Constant
access level
Used to set the constant access
level (set/read.)
0: Monitoring only
(Monitoring drive mode and
setting A1-01 and A1-04.)
1: Used to select user constant
(Only constants set in A2-01
to A2-32 can be read and
set.)
2: Advanced
(Constants can be read and
set in both quick
programming mode and
advanced programming (A)
mode.)
0 to 2 2 YesAAAA101H
Con-
stant
Number
Name Description
Setting
Range
Factory
Setting
Change
during
Opera-
tion
Control Methods
MEMO
BUS
Regis-
ter
V/f
V/f
with
PG
Open
Loop
Vec-
tor
Flux
Vec-
tor
A1-01
Constant
access level
Used to set the constant access
level (set/read.)
0: Monitoring only
(Monitoring drive mode and
setting A1-01 and A1-04.)
1: Used to select user constant
(Only constants set in A2-01
to A2-32 can be read and
set.)
2: Advanced
(Constants can be read and
set in both quick
programming mode and
advanced programming (A)
mode.)
0 to 2 2 YesAAAA101H
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