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Section 1
General Information
Programming & Operation 4-13MN722
Table 4-4 Inverter Control Board Level 1 Parameter Definitions
Block Title Parameter Description
PRESET
SPEEDS
Preset Speeds
#1 – #15
Allows selection of 15 predefined motor operating speeds.
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
RATE
Accel Time #1,2 Accel time is the number of seconds required for the motor to increase at a linear 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
Output Limits block.
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
Jog Accel Time
cause the drive to move in the direction of the error (without pressing FWD or REV).
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 S-Curve
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 changes the S-Curve to a preset value for jog mode.
Figure 4-2 40% S-Curve Example
Output Speed
Accel Time
0
Accel S-Curves
20
%
20
%
0%
Curve
40%
Curve
Decel Time
0
Decel S-Curves
20
%
20
%
0%
Curve
40%
Curve
Output Speed