Detailed instructions for use are in the User's Guide.
Installation & Operation Manual
KBAC SERIES
Adjustable Frequency Drives for 3-Phase AC Motors NEMA-4X / IP-65 Variable Speed / Soft-Start AC Motor Drive with Electronic Motor Overload Protection for Inverter Duty Motors* Washdown and Watertight for Indodor and Outdoor Use Rated for 208 Â 230 and 400/460 Volt 50 & 60 Hz 3-Phase & PSC** AC Induction Motors from 1 HP thru 5 HP
Operates from 115, 208/230 Volt and 400/460 Volt 50/60 Hz AC Line**
This Manual Covers Models KBAC-24D, 27D, 29, 45, 48
See Safety Warning, on page 5.
***
Note: The drive is factory set for 60 Hz motors. For 50 Hz motors, see Section 6.1, on pages 16 Â 17.
The information contained in this manual is intended to be accurate. However, the manufacturer retains the right to make changes in design which may not be included herein.
*UL approved as an electronic overload protector for motors. **Do not use this drive with GFCIs. Special software is available  contact our Sales Department. ***Installation of a CE approved RFI filter is required.
A Complete Line of Motor Drives
© 2006 KB Electronics, Inc. (see back cover)
TABLE OF CONTENTS Page Section 1 Quick-Start Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 2 Safety Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 3 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 4 Important Application Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 5 Wiring Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 6 Setting Selectable Jumpers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 7 Mounting Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 8 Recommended High Voltage Dielectric Withstand Testing (Hi-Pot Testing) . . . . . . . . . . . . . . . . . . . . . . . . . 19 9 Drive Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 10 AC Line Fusing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 11 Diagnostic LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 12 Trimpot Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Limited Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 Tables Page 1 Jumper Selectable Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 2 Optional Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 3 General Performance Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 4 Electrical Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 5 Terminal Block Wiring Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 6 Drive Operating Condition and Run/Fault Relay Contact Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 7 Drive Operating Condition and Status LED Indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Figures Page 1 Quick-Start Connection Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 2 Control Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 3 Model KBAC-24D Mechanical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 4 Models KBAC-27D, 29, 45, 48 Mechanical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 5 Maximum Allowed Motor Torque vs. Speed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 6 Open Ventilated Motor with External Fan Cooling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 7 Models KBAC-24D, 27D AC Line Input, Motor, and Ground Connections . . . . . . . . . . . . . . . . . . . . . . . . . 13 8 Models KBAC-29, 45, 48 AC Line Input, Motor, and Ground Connections . . . . . . . . . . . . . . . . . . . . . . . . 14 9 Remote Main Speed Potentiometer Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 10 Remote Start/Stop Switch Connection with Normally Open Stop Contact . . . . . . . . . . . . . . . . . . . . . . . . 15 11 Remote Start/Stop Switch Connection with Normally Closed Stop Contact . . . . . . . . . . . . . . . . . . . . . . . 15 12 Start/Stop Function Eliminated . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 13 Voltage Following Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 14 Enable Circuit Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 15 Run/Fault Relay Output Contacts Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 16 Models KBAC-24D, 27D AC Line Input Voltage Selection (Jumper J1) . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 17 Removing Jumper J1 on Models KBAC-24D, 27D . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 18 Motor Horsepower Selection (Jumper J2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 19 Automatic Ride-Through or Manual Restart Selection (Jumper J3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 20 60 Hz and 50 Hz Motor Selection (Jumpers J4 and J5) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 21 Available Torque vs. Output Frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 22 120 Hz and 100 Hz Drive Output Frequency Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 23 Fixed or Adjustable Boost Selection (Jumper J6) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 24 Regenerative or DC Injection Braking Selection (Jumper J7) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 25 "Run" or "Fault" Output Relay Operation Selection (Jumper J8) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 26 Normally Open or Closed Stop Contact Selection (Jumper J9) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 27 Constant or Variable Torque Selection (Jumper J10) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 28 I 2 t Overload Selection (Jumper J11) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 29 Typical Hi-Pot Test Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 ii
30 31 32 33 34 35 36 37 38 39
Minimum Speed Trimpot (MIN) Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Maximum Speed Trimpot (MAX) Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Acceleration Trimpot (ACCEL) Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Deceleration Trimpot (DECEL) Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DC Injection Brake Trimpot (DECEL) Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Slip Compensation Trimpot (COMP) Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Current Limit Trimpot (CL) Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I 2 t Trip Time vs. Motor Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Boost Trimpot (BOOST) Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Jog Trimpot (JOG) Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
22 22 22 23 23 23 23 24 25 25
Items Included In this Package: Adjustable Frequency Drive, Installation and Operation Manual, Trimpot Adjustment Tool, CE Approved Product Information Card, Warranty Registration Card.
iii
1
QUICK-START INSTRUCTIONS
Important  You must read these simplified instructions before proceeding. These instructions are to be used as a reference only and are not intended to replace the details provided herein. You must read the Safety Warning on, page 5, before proceeding.
See Figure 1. Also see Section 4 - Important Application Information, on page 12. WARNING! Disconnect main power before making connections to the drive.
FIGURE 1 Â QUICK-START CONNECTION DIAGRAM*
TB1
U
V MOTOR
W
L1
L2 AC LINE
L3
Motor 3-Phase AC Induction Motor: see Section 5.3, on page 14.
208/230 Volt, Single Phase, 50/60 Hz, AC Line Input (Terminals L1, L2) (Models KBAC-24D, 27D, 29): see Section 5.1, on pages 13 Â 14.
Ground (Earth): see Section 5.2, on page 14.
208/230, 400/460 Volt, 3-Phase, 50/60 Hz, AC Line Input (Terminals L1, L2, L3) (Models KBAC-29, 45, 48): see Section 5.1, on pages 13 Â 14.
*Layout of Model KBAC-24D varies slightly.
1.1
AC LINE INPUT CONNECTION Â Wire the AC line input to Terminal Block TB1. See Section 5.1, on pages 13 Â 14. Application Note: Do not wire this drive to a GFCI. If operation with a GFCI is required, contact our Sales Department. Note: The rated AC line voltage of the drive must match the actual AC line input voltage. On Models KBAC-24D, 27D, the setting of Jumper J1 must match the AC line input voltage. Models KBAC-24D, 27D: Designed to accept single-phase (Terminals "L1", "L2") AC line input only. Rated for 208/230 Volt AC line input with Jumper J1 set to the "230V" position (factory setting). Rated for 115 Volt AC line input with Jumper J1 set to the "115V" position. See Figure 7, on page 13. Note: Model KBAC-27D is rated for 11/2 HP maximum with 115 Volt AC line input and 2 HP maximum with 208/230 Volt AC line input. Model KBAC-29: Designed to accept single-phase (Terminals "L1", "L2") or 3-phase (Terminals "L1", "L2", "L3") AC line input. Rated for 208/230 Volt AC line input only. See Figure 8, on page 14. Note: Rated for 2 HP maximum with single-phase AC line input and 3 HP maximum with 3-phase AC line input.
4
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 Â 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. GROUND CONNECTION Â 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. MOTOR CONNECTION Â 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) Â consult our Sales Department.) See Section 5.3, on page 14. 60 Hz and 50 Hz MOTOR OPERATION Â The drive is factory set for 60 Hz motor operation (Jumper J5 set to the "60Hz" position). For 50 Hz motor operation, set J ...
