KB Electronics KBMA-24DF - Manual (Page 7)

• Motor Horsepower Selection Jumper – Allows the drive to be used on a wide range of motor horse-
power (1/8, 1/4, 1/2, 3/4, 1 HP) without recalibration or programming.
• Diagnostic LEDs – PC board mounted LEDs for Power On (ON), Drive Status (ST), and Overload (OL).
• Run/Fault Relay Output Contacts – Can be used to turn on or off equipment or to signal a warning if
the drive is put into the Stop Mode or a fault has occurred.
• Barrier Terminal Blocks – Facilitate wiring of AC line, motor, ground (earth) and Run/Fault Relay Output
Contacts.
• On/Off AC Line Switch – Panel mounted. Used to turn the power on or off to the drive.
• Pilot Light – Panel mounted. Indicates that power is applied to the drive and the On/Off AC Line Switch
is set to the “ON” position.
• Main Speed Potentiometer – Panel mounted. Provides adjustment of motor speed.
• Jumper Selection of Drive Output Frequency – Increases the motor speed up to two times the rated
RPM.
• Compatible with GFCIs (with optional software).
3.2 PERFORMANCE FEATURES
• Power Start™ – Provides more than 200% starting torque which ensures startup of high frictional loads.
• Slip Compensation with Static Auto-Tune and Boost – Provides excellent load regulation over a wide
speed range.
• Speed Range – 60:1
3.3 PROTECTION FEATURES
• Motor Overload (I 2 t) with RMS Current Limit – Provides motor overload protection which prevents
motor burnout and eliminates nuisance trips.*
• Electronic Inrush Current Limit (EICL™) – Eliminates harmful inrush AC line current during startup.
• Short Circuit – Shuts down the drive if a short circuit occurs at the motor (phase-to-phase).
• Regeneration – Eliminates tripping due to bus overvoltage caused by rapid deceleration of high
inertial loads.
• Undervoltage and Overvoltage – Shuts down the drive if the AC line input voltage goes above or below
the operating range.
• MOV input transient suppression.
• Microcontroller self monitoring and auto-reboot.
*UL approved as an overload protector for motors.
3.4 SELECTABLE JUMPERS (See Section 7, on pages 16 – 18.)
• AC Line Input Voltage Selection (115/230 Volts AC) (J1)
• Motor Horsepower (1/8, 1/4, 1/2, 3/4, 1 HP) (J2)
• Automatic or Manual Start and Reset (J3)
• Frequency Multiplier (1X, 2X) (J4)
• Motor Frequency (50/60 Hz) (J5)
• “Run” or “Fault” Output Relay Operation (J6)
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