Specifications chapter 3 – Rockwell Automation 1557 MEDIUM VOLTAGE AC DRIVE User Manual

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SPECIFICATIONS

CHAPTER 3

1557-UM050F-EN-P – June 2013

The electrical and environmental specifications of the Bulletin 1557 MV Drive are provided below:

Input Voltages:

2300Vac ± 10%, 3-Phase

3300Vac ± 10%, 3-Phase

4160Vac ± 10%, 3-Phase

6900Vac ± 10%, 3-Phase

Input Frequency:

50/60Hz ± 3Hz

Efficiency:

97% at full load (minimum)

Output Voltage:

0 to 2300Vac, 3-Phase

0 to 3300Vac, 3-Phase

0 to 4160Vac, 3-Phase

0 to 6900Vac, 3-Phase

Output Frequency:

6Hz to 75Hz (Without Tach)

0.2Hz to 75 Hz (With Tach)

Speed Regulation:

0.5% of maximum speed (Without Tach)

0.1% of maximum speed (With Tach)

Speed Reference:

0 to 10V dc or

4 to 20 mA dc

Operating Temperature:

Ambient temperature must be within the range of 0° to 40°C
with a relative humidity of up to 95% (non-condensing)

Storage Temperature:

Ambient temperature must be within the range of

–40° to 70°C

Altitude:

No derating below 1000 m above sea level