Siemens EF 83P Series Instrukcja Obsługi Pobierz pdf (Strona 14)

1-4

Allowable values:

*Voltage…………………….…10% of nominal supply

voltage.

*Frequency……………………50/60 Hz  1 Hz.

*Momentary power failure…....Less than 10 msec.

*Voltage impulse……………...Leak value is 200% or less of

the effective value (rms value)

of the line voltage with pulse

duration of 1.5 msec.

*Waveform distortion…………7% or less

*Imbalance in line voltages……5% or less

Grounding:

(1) The machine must be grounded independently of other

machines.

(2) If electric welders or electric discharge machines are

grounded to the frame of the plant building, do not

connect the ground wire of the machine to the plant

frame.

(3) The ground wire must be as short as possible and have the

same diameter as the input power cable.

Class 3 ground

Grounding resistance: 100or less

(4) Please measures the ground wire to earth, exactly.

The grounding resistance must be less than 100with the

single device.

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Siemens EF 83P Series Instrukcja Obsługi Strona 14