Delta Electronics VFD-M manual Pr.17, Pr.18, Pr.19, Pr.20, Pr.21, Pr.22, Pr.23

Chapter 4 Parameters

When the JOG function is activated, the AC drive will accelerate from Minimum Output Frequency (Pr.08) to Jog Frequency (Pr.16). Drive must be in “stop” status for the operator to activate the JOG function. Likewise, during Jog operation, other commands cannot be accepted through the keypad but FORWARD, REVERSE and STOP. The JOG function can be remotely activated when the Jog terminal is closed, and if the Jog terminal opens, the AC drive will decelerate from Jog Frequency to zero. The accel / decel time is entered as Jog Accel / Decel Time (Pr.15). Multi-function Input terminals (M1-M5) can also be used to initiate the JOG operation if so programmed.

Frequency

Jog

Freq.

Pr.16

							Time
		Pr. 15			Pr. 15
	Acceleration Time			Deceleration Time
Jog operation			ON			OFF
command

Pr.17	1st Step Speed Frequency	Unit: 0.1 Hz
Pr.18	2nd Step Speed Frequency	Unit: 0.1 Hz
Pr.19	3rd Step Speed Frequency	Unit: 0.1 Hz
Pr.20	4th Step Speed Frequency	Unit: 0.1 Hz
Pr.21	5th Step Speed Frequency	Unit: 0.1	Hz
Pr.22	6th Step Speed Frequency	Unit: 0.1	Hz
Pr.23	7th Step Speed Frequency	Unit: 0.1	Hz
	Settings 0.00 to 400.0Hz	Factory Setting: 0.00	Hz

Multi-Function Input Terminals (refer to Pr.38 to Pr.42) are used to select Multi-Step speeds. The desired speed frequencies are entered in Pr.17 to Pr.23. When the associated multi- function input terminal is closed, drive will run at one of these specific frequencies. Multi-step speeds (Pr.17 to Pr.23), Pr.78, Pr.79, and Pr.81 to Pr.87; are used for multi-step motion control, which is executed in an orderly manner, similar to a PLC program.

4-26 Revision May 2008, ME14, SW V3.04