Danfoss VLT MICRO Manual page 7

Relay outputs:
No. of programmable relay outputs ........................................................................... 1
Terminal numbers ............................................... RA, RC (N.O.) RB, RC (N.C.) (Form C)
Max. terminal load rating ............................................................ 120 VAC/28 VDC, 5 A
........................................................................................................... 240 VAC, 2.5 A
Brake resistor terminals:
Terminal numbers ............................................................................................. B1, B2
Cable lengths and cross-sections:
Use 75° grade copper wire minimum
Max. motor cable length ...................................................................................... 50 m
Max. cable cross-section for line, motor and brake .......................... 14 AWG (2.0 mm
Max. cable cross-section for control terminals ................................. 14 AWG (2.0 mm
Control characteristics:
Frequency range ..................................................................................... 0.1 - 400 Hz
Resolution on output frequency ..................................................................... ±0.1 Hz
Speed, control range (open loop) ........................................... 1:20 of synchro. speed
Speed, accuracy (open loop) ........................................... < 1800 rpm: max. error 2%
....................................................... > 1800 rpm: max. error of 0.5% of actual speed
Environment:
Enclosure .............................................................................. Protected chassis (IP20)
Vibration test ..................................................... 1.0 g less than 20Hz, 0.6 g 20-50Hz
Max. relative humidity .............................................. less than 90% (non-condensing)
Ambient temperature .......................................................................... –10°C - +50°C
Temperature during storage/transport ..................................................... –20 - +60°C
Max. altitude above sea level ........................................................... 3300 ft. (1000 m)
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VLT MICRO
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