Speedmaster® Inverter Drives
LEESON® Speedmaster® inverter drives are feature rich controls offering great process control and operating efficiency for your AC Motors. Our broad family of controls have the solution for your application needs at a competitive price.
| Basic Features | Micro Series | SM-Plus | SM-Basic | SM2 Vector | SM4 Vector | Platinum VSD | Platinum VSD - Plus |
| Enclosure Type | IP 31 & IP65/54 | IP20 | IP20 | IP31 | IP65 | IP21 | IP21 |
| Enclosure Material | Steel | Plastic | Plastic | Plastic | Plastic | Plastic | Plastic |
| Number Pre-Set Speeds | 4 | 7 | 7 | 8 | 8 | 16 | 16 |
| Washdown Duty | Yes | No | No | No | Yes | No | No |
| FWD & REV | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| Password Protected | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| Dynamic Brake Kits | Yes | Yes | Yes | No | No | No | Yes |
| Relays | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| EPM Programmable | No | Yes | Yes | Yes | Yes | Yes | Yes |
| Open Loop Vector | No | No | No | Yes | Yes | Yes | Yes |
| Closed Loop Vector | No | No | No | No | No | No | Yes |
| PMAC Motor Control | No | No | No | No | No | Yes | Yes |
| PID Software | Yes | No | No | Yes | Yes | Yes | No |
| Remote Keypads | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| Slip Compensation | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| Speed Reference Signals | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| Display Words or Codes | Words | 3-digit | 3-digit | 4-digit | 4-digit | Words & Codes | Words & Codes |
| Adjustable carrier frequency | 2.5-14 kHz | 4-10 kHz | 4-10 kHz | 4-10 kHz | 4-10 kHz | 2-16 kHz | 2-16 kHz |
| DC Braking | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| Fault History | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| Max. HP @ 460 Volts | 150 | 30 | 15 | 60 | 30 | 3 | 30 |
| Max. HP @ 230 Volts | 60 | 20 | 15 | 20 | 20 | 3 | 3 |
| 1 Phase Input/ # Phase Output | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| Output frequency | 120 | 240 Hz | 240 Hz | 500 Hz | 500 Hz | 599 Hz | 599 Hz |
AC/DC Controls
Quick Reference
 |
DC Adjustable Speed Drives |
Speedmaster DC drives for use with SCR rated motors. Motors range from sub-FHP through 3 HP. NEMA 1 NEMA 4/12 and NEMA 4x enclosures available. Low voltage Controls available through 120 amps @ 12/24 V and 100 amps @36/48 V. |
 |
SM2/SM4 Series Flux Vector Sub-Micro AC Inverters |
Speedmaster sensorless vector drives with "big drive" features and ultra-compact size. SM@-1/2 through 25 HP. IP31 enclosure- NEMA 1 type. SM4-1/2 through 10HP IP65 NEMA 4. |
 |
SM Series Sub-Micro AC Inverters |
Speedmaster adjustable speed drives for simpler applications not requiring the advanced features of the SM-Plus Series. Models range from 1/3 through 25 HP IP 20 enclosure - chassis mount. |
 |
Micro Series NEMA Enclosed AC Inverters |
Speedmaster adjustable speed drives with plain English programming and read-out. Models range from 1/4 through 150 HP. NEMA 1 enclosure. |
 |
Micro Series WASHGUARD® AC Inverters |
Speedmaster adjustable speed drives in NEMA 4/12 and NEMA 4X enclosures. Plain-English programming and read-out. Models range from 1/4 through 125 HP. |