Delta VFD-M-D series, Руководство пользователя, Страница: 58 / 163

Chapter 5 Parameters
|
VFD-M-D Series
Revision Jan. 2007, MDE2, SW V1.05 5-25
lifetime will be shorter and it can be damaged due to higher temperature, failing insulation and
unstable torque output.
AVR function automatically regulates the AC motor drive output voltage to the Maximum
Output Voltage (Pr.1-02). For instance, if Pr.1-02 is set at 200 VAC and the input voltage is at
200V to 264VAC, then the Maximum Output Voltage will automatically be reduced to a
maximum of 200 VAC.
When motor stops with deceleration, it will shorten deceleration time. When setting this
parameter to 02 with auto acceleration/deceleration, it will offer a quicker deceleration.
0 - 12 Source of the Operation Command
Factory Setting: 00
Settings 00 Digital keypad
01 External terminals. Keypad STOP enabled.
02 External terminals. Keypad STOP disabled.
03 RS-485 serial communication (RJ-11). Keypad STOP enabled.
04 RS-485 serial communication (RJ-11). Keypad STOP disabled.
This parameter is used to set the source of the operation command.
0 - 13 Stop Method
Factory Setting: 00
Settings 00 Ramp to stop E.F.: coast to stop
01 Coast to stop E.F.: coast to stop
02 STOP: ramp to stop E.F.: ramp to stop
03 STOP: coast to stop E.F.: ramp to stop
The parameter determines how the motor is stopped when the AC motor drive receives a valid
stop command or detects External Fault.
1. Ramp: the AC motor drive decelerates to Minimum Output Frequency (Pr.1-05)
according to the deceleration time and then stops.
2. Coast: the AC motor drive stops the output instantly upon command, and the motor
free runs until it comes to a complete standstill.
3. The motor stop method is usually determined by the characteristics of the motor load and
how frequently it is stopped.
(1) It is recommended to use “ramp to stop” for safety of personnel or to prevent
material from being wasted in applications where the motor has to stop after the