KB Electronics KBAC-29 (1P) - Manual (Page 6)

Models KBAC-45, 48: Designed to accept 3-phase (Terminals “L1”, “L2”, “L3”) AC line input only.
Rated for 400/460 Volt AC line input only. See Figure 8, on page 14.
1.2 AC LINE FUSING – It is recommended that a fuse(s) or circuit breaker be installed in the AC line.
Fuse each conductor that is not at ground potential. For the recommended fuse size, see Table 4, on
page 10. Also see Section 10, on page 21.
1.3 GROUND CONNECTION – Connect the ground wire (earth) to the ground screw, as shown in Figure
7, on page 13, and Figure 8, on page 14. See Section 5.2, on page 14.
1.4 MOTOR CONNECTION – Wire the motor to Terminal Block TB1 Terminals “U”, “V”, “W”, as shown in
Figure 7, on page 13, and Figure 8, on page 14. (Special reactors may be required for cable lengths
over 100 ft. (30 m) – consult our Sales Department.) See Section 5.3, on page 14.
1.5 60 Hz and 50 Hz MOTOR OPERATION – The drive is factory set for 60 Hz 3-phase motor operation
(Jumper J5 set to the “60Hz” position). For 50 Hz motor operation, set Jumper J5 to the “50Hz” posi-
tion. See Section 6.4, on page 17.
1.6 START/STOP SWITCH – The drive is supplied with a prewired Start/Stop Switch to electronically
“start” and “stop” the drive, as described in Section 5.5, on pages 14 – 15. This switch must be used
to “start” the drive each time the AC line is applied to the drive or to “restart” the drive. Also see
Section 6.8, on page 18.
1.7 JUMPER SETTINGS – All jumpers have been factory set for most applications, as shown in Figure 2,
on page 9. Some applications require setting of the jumpers in order to tailor the drive for a specific
requirement. See Section 6, on pages 16 – 18.
1.8 TRIMPOT SETTINGS – All trimpots have been factory set for most applications, as shown in Figure
2, on page 9. Some applications require adjustment of the trimpots in order to tailor the drive for a
specific requirement. See Section 12, on pages 22 – 25.
1.9 DIAGNOSTIC LEDs – After power has been applied, observe the LEDs to verify proper drive opera-
tion, as described in Section 11, on pages 21 – 22.
2 SAFETY WARNING
Definition of Safety Warning Symbols
Electrical Hazard Warning Symbol – Failure to observe this warning could result in electrical
shock or electrocution.
Operational Hazard Warning Symbol – Failure to observe this warning could result in serious
injury or death.
5
This product should be installed and serviced by a qualified technician, electrician, or
electrical maintenance person familiar with its operation and the hazards involved. Proper
installation, which includes wiring, fusing or other current protection, and grounding can reduce the
chance of electrical shocks, and/or fires, in this product or products used with this product, such as
electric motors, switches, coils, solenoids, and/or relays. Do not use this drive in an explosion-proof
application. Eye protection must be worn and insulated adjustment tools must be used when working
with drive under power. This product is constructed of materials (plastics, metals, carbon, silicon, etc.)
which may be a potential hazard. Proper shielding, grounding, and filtering of this product can reduce
the emission of radio frequency interference (RFI) which may adversely affect sensitive electronic
equipment. It is the responsibility of the equipment manufacturer and individual installer to supply this
Safety Warning to the ultimate end user of this product. Be sure to follow all instructions carefully. Fire
and/or electrocution can result due to improper use of this product. (SW 1/2006)