KB Electronics IODA, Input/Output Module for use with all KBDA/KBMK Controls User Manual

Page 33

4.9 REMOTE MAIN SPEED POTENTIOMETER

A remote Main Speed Potentiometer (5 k

Ω) can be used in lieu of the Keypad or

the Built-In Potentiometer on the drive to control motor speed. The potentiometer
can be connected for Unidirectional Operation, Bidirectional Operation with
center off, or Bidirectional Operation with Forward/Reverse Switches or Contacts.

UNIDIRECTIONAL OPERATION WITH 2-WIRE START/STOP USING

ANALOG INPUT 1:

Connect the potentiometer to Terminals "9" (+5 Volts), "19" (Analog Input 1), and
"16" (Common) (Terminals "8", "12", "14", "18" or "22" can also be used for
common). Connect the Start/Stop Switch or Contact to Terminal "5", which is
factory set for N.O. Start ("0010"), and to any available common terminal
("8", "12", "14", "16", "18" "20", "22"). See Figure 26 for connections. See Table
20, on page 34, for drive programming.

Operation: When the Start/Stop Switch or Contact is closed, the drive will be in
the Run Mode. Rotate the Main Speed Potentiometer clockwise to increase
motor speed. Rotate the Main speed Potentiometer counterclockwise to
decrease motor speed. When the Start /Stop Switch or Contact is opened, the
drive will be in the Stop Mode.

UNIDIRECTIONAL OPERATION WITH 2-WIRE START/STOP USING

ANALOG INPUT 2:

Connect the potentiometer to Terminals "9" (+5 Volts), "21" (Analog Input 2), and
"14" (Common) (Terminals "8", "12", "16", "18" or "22" can also be used for
Common). Connect the Start/Stop Switch or Contact to Terminal "5", which is
factory set for N.O. Start ("0010"), and to any available common terminal
("8", "12", "14", "16", "18" "20", "22").

FIGURE 26

REMOTE UNIDIRECTIONAL MAIN SPEED POTENTIOMETER CONNECTIONS

*Use a jumper, between Terminals "5" and "8", if a Start/Stop Switch or Contact is not
required.