KB Electronics KBDF-48 User Manual

Page 32

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32

8.4.2.1.2 CURRENT FOLLOWING
Connect the 0 – 20 mA or 4 – 20 mA DC Current Signal input to TB1 Terminal "3" and the
common to TB1 Terminal "4". Set Jumper J2 to "CUR" and be sure it is also set to "ANLG" and
"5V". Connect the Start (Jumper) to TB1 Terminal "9", which is factory set for N.O. Start ("0010")
and to either common TB1 Terminal "4" or "11" Set the signal Slope and Type and adjust the
Gain, Offset, and Response Time as desired. See Figure 22, for connections, Jumper J2
settings, and drive programming.

FIGURE 22

CURRENT FOLLOWING

CONNECTIONS, JUMPER J2 SETTINGS, AND DRIVE PROGRAMMING

*Factory setting.


8.4.2.2 REMOTE MAIN SPEED POTENTIOMETER
A remote Main Speed Potentiometer (5 kΩ) 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 Contacts.

Unidirectional Operation with 2-Wire Start/Stop
Connect the high side of the Main Speed Potentiometer to TB1 Terminal "2" (+5 Volts), the
wiper to TB1 Terminal "3" (Analog Signal Input), and low side to either TB1 Terminal "4" or "11"
(Common). Connect the Start/Stop Contact to TB1 Terminal "9", which is factory set for N.O.
Start ("0010") and to either TB1 Terminal "4" or "11". See Figure 23, on page 33, for
connections, Jumper J2 settings, and drive programming.

Operation: Close the Start/Stop Contact to start the drive. Rotate the Main Speed
Potentiometer clockwise to increase motor speed. Rotate the Main speed Potentiometer
counterclockwise to decrease motor speed. Open the Start/Stop Contact to stop the drive.

Jumper J2 Settings

+

Program Function

Setting

1.00: Run/Stop-Forward/Reverse Control

0001: External Contacts*

2.01: Remote Frequency Control

0000: Analog Signal 1*

7.04: Multi-Function Input 5 (TB1 Term. 9)

0010: N.O. Start (2-Wire or 3-Wire Start/Stop)*

9.00: Analog Input 1 Gain (%)

0 – 500% (100%*)

9.01: Analog Input 1 Slope

0000: Positive*
0001: Negative

9.02: Analog Input 1 Offset (%)

0 – 100% (0%*)

9.03: Analog Input 1 Type

0000: Unidirectional*

9.04: Analog Input 1 Response Time (mSec)

2 – 100 mSec (2 mSec*)

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