KB Electronics KBVF-23P User Manual

Page 35

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35

9.8

Enable Switch Connection (CON2) – The drive can be started and stopped with an Enable

Switch (close to run, open to stop). Remove the factory installed jumper on CON2 and install the

3-wire connector (supplied). CON2 is located on the lower PC board. The connector must be

wired to a “maintained” switch or contact. See Figure 21, on page 34.

For Forward Enable Operation, wire the switch to the white and black wires. For Reverse

Enable Operation, wire the switch to the red and black wires. When the switch is closed, the

drive will run. When the switch is opened, the drive will stop.

10 AC LINE FUSING

This drive does not contain AC line fuses. Most electrical codes require that each ungrounded con-

ductor contain circuit protection. Do not fuse neutral or ground connections. It is recommended

to install a fuse (Littelfuse 326, Buss ABC, or equivalent) or a circuit breaker in series with each

ungrounded conductor. Do not fuse motor leads. For the recommended fuse size, see Table 1, on

page 14. Wire the drive in accordance with the National Electrical Code requirements and other

local codes that may apply to the application.

11 DRIVE OPERATION

11.1 Start-Up Procedure – After the drive has been properly setup (jumpers and trimpots set to

the desired positions) and wiring completed, the startup procedure can begin. If the AC power

has been properly brought to the drive, the power (PWR) LED will be illuminated green. The

status (ST) LED will indicate drive status, as described in Section 11.2. To remove and install

the Finger-Safe Cover, see Section 5, on page 22.

11.2 Fault Recovery – The drive monitors four faults (Undervoltage, Overvoltage, Short Circuit at

the motor (phase-to-phase), I

2

t). Table 3, describes how the drive will automatically start (fac-

tory setting) after the fault has cleared.

Application Note: In Manual Start Mode, the drive must be manually reset for any fault.

Use the Manual Start Switch, as described in Section 9.6, on page 33. Also see Section

12.2, on page 38.

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