Delta Electronics VFD-EL series, Руководство пользователя, Страница: 56 / 181

Revision 2016/03, 6ELE, V1.14
4-27
1 Password has been set
To set a password to protect your parameter settings.
If the display shows 0, no password is set or password has been correctly entered in Pr.00.08. All parameters
can then be changed, including Pr.00.09.
The first time you can set a password directly. After successful setting of password the display will show 1.
Be sure to record the password for later use.
To cancel the parameter lock, set the parameter to 0 after inputting correct password into Pr. 00.08.
The password consists of min. 1 digits and max. 4 digits.
How to make the password valid again after decoding by Pr.00.08:
Method 1: Re-input original password into Pr.00.09 (Or you can enter a new password if you want to use a
changed or new one).
Method 2: After rebooting, password function will be recovered.
Password Decode Flow Chart
3 chances to enter the correct
password.
1st time displays "1" if
password is incorrect.
2nd time displays "2", if
password is incorrect.
3rd time displays " code"
(blinking)
If the password was entered
incorrectly after three tries,
the keypad will be locked.
Turn the power OFF/ON to
re-enter the password.
Incorrect Password
END
Displays 0 when
entering correct
password into
Pr.00.08.
00.09 00.08
00.08
Displays 0 when
entering correct
password into
Pr.00.08.
Correct Password
END
00.09
00.10 Control Mode
Factory Setting: 0
Display 0 Voltage Frequency Control
1 Vector Control
This parameter determines how the motor drive is controlled.
V/F: Voltage Frequency Control
1. The mechanical characteristic curve of the motor will not be modified, but the mains frequency and mains
voltage will be changed. This control mode allows the motor drive to do open loop running and also allow the
motor drive to do closed loop running with a PG card (an optional accessory). Under this control mode, the
changes in slip ratio bring the rotary’s modifications in electromagnet torque and in load torques. That is the
most obvious characteristic of V/F control.
2. V/F control is a constant value control mode. In this control mode, frequency decreasing and magnetic field
increasing are under control. But as the frequency decreases, a problem rises: the insufficiency of motor’s
torque in a weaken low frequency magnetic field. To solve this problem, set up Pr07.02 Torque
Compensation to compensate torque then to have the best operating performance. The V/F control mode
can be applied on water pumps, conveyer belts, compressors and tread mills.
Vector Control: