KB Electronics KBMK-24DF - Manual (Page 40)

40
OTHER FUNCTIONS AND FEATURES OF THE IODA
A8. SIGNAL FOLLOWING
An analog voltage (unidirectional or bidirectional), current, or PWM signal input can be used to control motor
speed in lieu of the Keypad. The drive output will linearly follow the signal input. The inputs can be
programmed for the desired gain, slope, offset, and response time.
Analog Input 1 is used for a DC voltage signal which has a positive or negative slope and is unidirectional or
bidirectional. Analog Input 2 is used for a DC voltage, current, or PWM signal with a positive or negative slope
and is unidirectional.
Local/Remote Operation: When using the IODA with signal following or remote start/stop, it is desirable to
program the drive for Local/Remote Operation. In this mode, the drive frequency setting can be toggled
between a process signal and the keypad using the JOG-LCL/REM Key. The following functions can be
switched between "remote" and "local" (Keypad) operation: Start/Stop, Forward/Reverse, Analog Signal
Inputs 1 and 2, and Up/Down Frequency Control.
Set Jog-Local/Remote (Function No. 2.02) to Jog Disabled; Local/Remote Enabled ("0002") to change the
JOG-LCL/REM Key from Jog Operation to Local/Remote Operation.
Note: To stop the drive using the Keypad, when in Remote Operation, first press the JOG-LCL/REM Key
and then the Stop Key.
Operation with a Positive Slope Signal: When the signal input is increased, the drive output frequency will
increase. When the signal input is decreased, the drive output frequency will decrease. See Figure 30.
Operation with a Negative Slope Signal: When the signal input is increased, the drive output frequency will
decrease. When the signal input is decreased, the drive output frequency will increase. See Figure 31, on
page 41.
FIGURE 30
ANALOG INPUT "1" AND "2" SIGNAL GAIN AND OFFSET WITH POSITIVE SLOPE
(LOW-TO-HIGH SIGNAL) (FUNCTION NO. 9.01 OR 9.06 SET TO "0000")