Danfoss VLT CDS 303 Panduan Pemecahan Masalah - Halaman 16
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Halaman Cetak
Check List
Step 4
Figure 19: The multimeter
should show diode drop
around 0.4 volts
16
FRCC.PC.036.A2.02
Static test procedures
Now reverse the meter leads, i.e. connect
the positive terminal of the meter lead to the
negative DC bus.
• Connect the negative terminal of the meter
lead to the motor terminals U, V, W in turn.
• The multimeter should show diode drop
around 0.4 volts.