5.1 A: Initialization
132 YASKAWA ELECTRIC SIEP C710616 27C YASKAWA AC Drive A1000 Technical Manual
Notes on Parameter Initialization
The parameters shown in Table 5.1 will not be reset when the drive is initialized by setting A1-03 = 2220 or 3330.
Although the control mode in A1-02 is not reset when A1-03 is set to 2220 or 3330, it may change when an application
preset is selected.
Table 5.1 Parameters not Changed by Drive Initialization
■ A1-04, A1-05: Password and Password Setting
A1-04 is for entering the password when the drive is locked. A1-05 is a hidden parameter used to set the password.
How to use the Password
The user can set a password for the drive to restrict access. The password is set to A1-05 and must be entered to A1-04 to
unlock parameter access. Until the correct password is entered, the following parameters cannot be viewed or edited: A1-
01, A1-02, A1-03, A1-06, and A2-01 through A2-33.
The instructions below demonstrate how to set a new password. Here, the password set is “1234”. An explanation
follows on how to enter the password to unlock the parameters.
Table 5.2 Setting the Password for Parameter Lock
No. Parameter Name
A1-00 Language Selection
A1-02 Control Method Selection
C6-01 Duty Selection
E1-03 V/f Pattern Selection
E5-01 Motor Code Selection (for PM motors)
F6-08
Comm. Parameter Reset
L8-35 Installation Selection
o2-04 Drive/kVA Selection
No. Parameter Name Setting Range Default
A1-04
Password
0000 to 9999 0000
A1-05
Password Setting
Step Display/Result
1. Turn on the power to the drive. The initial display appears.
2.
Press the or key until the Parameter Setting Mode screen appears.
3.
Press the key to enter the parameter menu tree.
4.
Select the flashing digits by pressing , or .
5.
Select A1-04 by pressing .
6.
Press the key while holding down at the same time. A1-05 will appear.
Note: Because A1-05 is hidden, it will not be displayed by simply pressing the key.
“05” flashes
- MODE -
U1-01= 0.00Hz
U1-02= 0.00Hz
U1-03= 0.00A
DRV
FREF (OPR)
Rdy
JOG FWD FWD/REV
LSEQ
LREF
HELP
- MODE - PRG
DATA
Programming
FWD
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