Delta Electronics VFD007S23A manual 01Source of Operation Command

Chapter 5 ParametersVFD-S Series

2-01Source of Operation Command

		Factory Setting: d0
Settings	d0	Controlled by the keypad
	d1	External terminals. Keypad STOP/RESET enabled.
	d2	External terminals. Keypad STOP/RESET disabled.
	d3	RS-485 serial communication (RJ-11). Keypad STOP/RESET
		enabled.
	d4	RS-485 serial communication (RJ-11). Keypad STOP/RESET
		disabled.

When the AC drive is controlled by an external source, please refer to parameter group 4 for

detailed explanations on related parameter settings.

2-02	Stop Method
				Factory Setting: d0
	Settings	d0	STOP: ramp to stop	E.F.: coast to stop
		d1	STOP: coast to stop	E.F.: coast to stop
The parameter determines how the motor is stopped when the AC motor drive receives a
valid stop command or detects External Fault.
Ramp:		the AC motor drive decelerates to Minimum Output Frequency (Pr.1-05)
		according to the deceleration time set in Pr.1-10 or Pr.1-12 and then stops.
Coast:		the AC motor drive stops the output instantly upon command, and the motor

free runs until it comes to a complete standstill.

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 drive is stopped. The deceleration time has to be set accordingly.

(2)If motor free running is allowed or the load inertia is large, it is recommended to select “coast to stop”. For example: blowers, punching machines, centrifuges and pumps.

5-28 Revision August 2006, SE08, SW V2.61