Kb-electronics KBVF-48 Manual do Utilizador descarregar pdf (Página 18)

9.3 MOTOR CONNECTION – Wire the motor to

erminals “U”, “V”, “W”. The terminals are located

on the upper PC board. See Figure 14, on page

17. Motor cable length should not exceed 100 ft

(

30 m) – special reactors may be required – con-

ult our Sales Department.

Note: The drive is programmed to operate

3-phase AC induction motors. For PSC motors,

ptional software is required – contact our Sales

epartment.

.4 MAIN SPEED POTENTIOMETER CONNECTION

–

The drive is supplied with a 5 kΩ Main Speed

Potentiometer to control motor speed.

WARNING! Do not earth

ground any Main Speed

Potentiometer terminals.

Note: When mounting the Main

Speed Potentiometer, be sure to

install the insulating disc (supplied)

between the potentiometer and the

panel.

9.4.1 Models KBVF-27, 29 – Wire

the Main Speed

Potentiometer to Terminals

“P1” (low), “P2” (wiper), “P3”

(high). The terminals are locat-

ed on the lower PC board.

See Figure 15.

If installing the SIVFR Signal

Isolator, see Section 9.4.2.

9.4.2 Models KBVF-45, 48 – Wire

the Main Speed

Potentiometer to Terminal

Block TB1 on the SIVFR.

For Unidirectional Speed

Operation: Wire the Main

Speed Potentiometer to

Terminals “+5V” (high), “SIG1”

(wiper), “COM1” (low). Motor

direction is selected with a

Forward-Stop-Reverse Switch wired to Terminals “0V” (common of switch), “FWD”, “REV”. See

Figure 16. If a Forward-Stop-Reverse Switch is not used, a jumper must be installed between

Terminals “0V” and “FWD”, of Terminal Block TB1, in order for the drive to operate.

For Bidirectional Speed Operation

: Wire the Main Speed Potentiometer to Terminals “+5V”

(high), “SIG1” (wiper), “– 5V” (low). Terminals “FWD”, “REV”, “COM1” must be hard wired

together. See Figure 17.

Wiper

Low

High

(Supplied) (Front View)

Main Speed Potentiometer

P3P2

FIGURE 15 – MODELS KBVF-27, 29

MAIN SPEED POTENTIOMETER CONNECTION

(

UNIDIRECTIONAL OPERATION)

REV

High

Stop

-5V

TB1

+5V 0V FWD

Forward

Wiper

Potentiometer

Main Speed

(5 k)

Low

Reverse

SIG1 COM1

SIVF

TERMINAL

BLOCK

CUR VOLT

FIGURE 16 – UNIDIRECTIONAL MAIN SPEED POTENTIOMETER &

FORWARD-STOP-REVERSE SWITCH CONNECTIONS

(JUMPER J1 INSTALLED IN “VOLT” POSITION)

REV-5V

TB1

+5V 0V FWD SIG1 COM1

Main Speed

Potentiometer

Wiper

(5 k)

High

Jumper

Low

Jumper

CUR VOLT

SIVF

TERMINAL

BLOCK

FIGURE 17 – BIDIRECTIONAL

MAIN SPEED POTENTIOMETER CONNECTION

(TERMINALS “FWD”, “REV”, “COM1” HARDWIRED)

(JUMPER J1 INSTALLED IN “VOLT” POSITION)

1 2 ... 13 14 15 16 17 18 19 20 21 22 23 ... 28 29

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