KB Electronics KBDF-48 User Manual

Page 27

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8.4.1 START/STOP AND FORWARD/REVERSE
The drive can be started and stopped using 2-Wire or 3-Wire Start/Stop Contacts connected to
the Multi-Function Input Terminals. Also, some applications may require a jumper, which will
provide automatic starting of the drive when either a forward or reverse contact is closed. See
Figure 14, below, for the connections and drive programming.

Application Note: A frequency command must also be given for the drive to run.

WARNING! STOP is not to be used as an Emergency Stop or safety disconnect

since it is not fail-safe. Use only the AC line for this purpose.

APPLICATION NOTES FOR AUTO/MANUAL START MODE (FUNCTION 1.05)

1. If the drive is set for Manual Start Mode ("0000" (factory setting)), Manual Start with Ride-
Through ("0001"), or Auto Start After Undervoltage Fault Clears ("0002"), it will have to be
manually restarted after the external fault has been cleared. Use the Reset Key on the Keypad
or the external Reset Contact to restart the drive.

2. If the drive is set for Auto Start All Faults (Except Short circuit Fault) ("0003"), it will
automatically restart after the external fault has been cleared, for the number of restart attempts
set in Function 1.07 (factory set to 3). After which, the drive will have to be restarted using the
Reset Key on the Keypad or the external Reset Contact.

3. If the drive is set for Auto Start All Faults (Except I

2

t, I•t, and Short Circuit Faults) ("0003"), it

will automatically restart after the external fault has been cleared.


8.4.1.1 AUTOMATIC START
Some applications will require that the drive automatically start when the AC Line is applied. See
Figure 14, for connections and drive programming.

WARNING! Using a jumper to automatically start or restart the drive will cause the

motor to run at the Set Frequency of the drive when the AC Line is applied.

FIGURE 14

AUTOMATIC START

CONNECTIONS AND DRIVE PROGRAMMING

*Factory setting.

Program Function

Setting

1.00: Run/Stop-Forward/Reverse Control 0001:

External

Contacts*

0002: Auto Start After Undervoltage Fault Clears

0003: Auto Start All Faults
(Except

I

2

t, I•t, and Short Circuit Faults)

1.05: Auto/Manual Start Mode
(Choose a code (0002, 0003, or 0004) as required by
the application.)

0004: Auto Start All Faults
(Except Short Circuit Fault)

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

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

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