Baldor mn722 manual Inverter Control Board Level 1 Parameter Definitions, Output Limits block

Table 4-4 Inverter Control Board Level 1 Parameter Definitions

Block Title	Parameter	Description
PRESET	Preset Speeds	Allows selection of 15 predefined motor operating speeds.
SPEEDS	#1 – #15	Each speed may be selected using external switches connected to J1-11, J1-12,
		J1-13 and J1-14 when Operating Mode is set to 15 Speed.
		For motor operation, a motor direction command must be given along with a preset
		speed command.
ACCEL/DECEL	Accel Time #1,2	Accel time is the number of seconds required for the motor to increase at a linear rate
RATE		from 0 RPM to the RPM specified in the “Max Output Speed” parameter in the Level 2
		Output Limits block.
	Decel Time #1,2	Decel time is the number of seconds required for the motor to decrease at a linear rate
		from the speed specified in the “Max Output Speed” parameter to 0 RPM.
	S-Curve #1,2	S-Curve is a percentage of the total Accel and Decel time and provides smooth starts
		and stops. Half of programmed S-Curve % applies to Accel and half to Decel ramps.
		0% represents no “S” and 100% represents full “S” with no linear segment.
		Note: Accel #1, Decel #1 and S-Curve #1 are associated together. Likewise,
		Accel #2, Decel #2 and S-Curve #2 are associated together. These
		associations can be used to condition any Preset Speed or External Speed
		command.
		Note: If drive faults occur during rapid Accel or Decel, selecting an S-curve may
		eliminate the faults.
JOG SETTINGS	Jog Speed	Jog Speed is the programmed speed used during for jog. Jog can be initiated from the
		keypad or terminal strip. At the Keypad, press the JOG key then press and hold the
		FWD or REV. For Standard Run, close the JOG input (J1-12) then close and maintain
		the direction input (J1-9 or J1-10).
		Process Control mode operation is different. If the terminal strip Process Mode
		Enable input (J1-13) is closed, pressing the Keypad JOG key (or closing J1-14) will
		cause the drive to move in the direction of the error (without pressing FWD or REV).
	Jog Accel Time	Jog Accel Time changes the slope of the jog accel ramp. It is the time from zero speed
		to maximum speed programmed in seconds.
	Jog Decel Time	Jog Decel Time changes the slope of the jog decel ramp. It is the time from maximum
		speed to zero speed programmed in seconds.
	Jog S-Curve	Jog S-Curve changes the S-Curve to a preset value for jog mode.

Figure 4-2 40% S-Curve Example

SpeedOutput

0

20

%

	40%
	Curve
0%	20
Curve	%

Accel Time

Accel S-Curves

Output Speed

0

20

%

40% Curve

0%

Curve

20

%

Decel Time

Decel S-Curves

MN722 Programming & Operation 4-13