VSD & Surface Control

VSD technical specifications

Input voltage

480 Vac −25% / +10%; 380 Vac −25% / +25%

Input frequency

47–63 Hz

Power factor

> 0.95 across all speeds

Output frequency

5–500 Hz; 0.1 Hz resolution

Output distortion

< 5% after PWM sine filter

Intermittent overload

120% for 1 minute

Maximum operating ambient temperature

55 °C / 131 °F

Minimum storage and operating temperature

−40 °C / −40 °F; internal heaters

Current range

63–1837 A

Pulse options

6 / 12 / 18

SCADA / I/O

RS485 (9.6–115 kbps), Modbus Slave; analog inputs 0–10 Vdc / 4–20 mA; digital inputs 24 Vdc

Fault and event logging

Software logging with USB card

Noise

< 75 dB at 1 m