LEESON AC & DC Drives
LEESON Electric AC & DC Drives
Cost effective Speedmaster Micro Series and Sub-Micro Series compact inverters offer "big drive" full features for adapting standard or premium efficiency three phase motors to adjustable speed operation. Utilizing the latest micro-processor and advanced IGBT power conversion devices. Enclosures ranging from NEMA IP22, NEMA 1(IP31) or NEMA 4/12 (IP65).
SUB-MICRO Series are designed for applications requiring a simpler drive without the advanced feature of the SM-Plus drive. Provides 11 isolated I/O terminals with one form A relay output. Other features include
SM PLUS SUB-MICRO Series are designed for Big Performance from an ultra-compact desgn. Provides 18 isolated I/O terminals plus RS485 Modbus serial communications.
SM2 SERIES FLUX VECTOR Drive excels in environments where inverter technology was once considered to costly, including packaging machinery, food processing machinery, material handling/conveying systems and HVAC systems.
Speedmaster Micro Series compact inverters provide high performance controls program and read-out in plain English, eliminating the frustration and time involved in looking-up confusing coded symbols. Complete, rugged steel enclosures for NEMA 1(IP31) or NEMA 4/12 (IP65) service do not require additional enclosure protection as with many plastic-housed compact drives. Built-in thermal overload protection reduces additional costs. Heavy duty wiring terminals accessible via three conduit openings on the bottom of the housing for power in/out and input/output signals speeds installation and reduces installation costs.
SCR/Thyristor drives are available in unidirectional and electro-mechanical type rerversing styles for MEMA frame ratings and sub-fractional HP sizes.
Pulse Width Modulated (PWM) controls are available in NEMA 1 and chassis style units for subfractional HP frame motors form 1/40 through 1/4 HP. Due to their improved form factor, these PWM controls will result in quieter operation, lower operating temperatures, longer brush life, and greater motor overload capacity than for the same motor on a SCR type control.
Regenerative, four quadrant controls in NEMA 4X or chassis style available for applications requiring more precise motion control. These controls will produce both motoring and braking torque regulation for NEMA frame 1/4 HP through 2 HP motors.
