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