Yaskawa VCD 723 - Manual (Page 32)

2 Installation and Start-up
26 Pre-Power Check
9/15/93
❏ Remove any excess packing material.
❏ Check that all shipping devices and relay wedges have been removed.
Manually operate all contactors and relays to ensure that they move freely.
❏ Verify that all electrical connections are secure.
❏ Verify that all transformers are connected for proper voltage, according to the
drive system schematic diagram.
❏ Verify that the PG-X tachometer card is installed.
❏ Verify the EPROM inserted in the VCD 703 control board is labeled
according to the drawings supplied.
❏ Verify that all connections are made per the schematic.
❏ Verify that the three phase power connections are secure.
Figure 6. Voltage Selection in 460V VCD 723, 15HP and Above
FUSE
200V 380V 440V
220/ 400/ 460V
230V 415V
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• •
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CAUTION
Verify that incoming power IS NOT connected to the drive's
output terminals. (Terminals T1, T2, and T3). Improper
connection will cause severe damage to the drive when
energized.