YASKAWA
TOEPC71061782C GA800 Drive Installation & Primary Operation
21
Figure 6.15 Reattach the Terminal Cover
7
Electrical Installation
DANGER
Electrical Shock Hazard. Do not examine, connect, or disconnect wiring on an energized drive. Before servicing,
disconnect all power to the equipment and wait for the time specified on the warning label at a minimum. The internal capacitor
stays charged after the drive is de-energized. The charge indicator LED extinguishes when the DC bus voltage decreases below 50
Vdc. When all indicators are OFF, remove the covers before measuring for dangerous voltages to make sure that the drive is safe. If
you do work on the drive when it is energized, it will cause serious injury or death from electrical shock.
WARNING
Electrical Shock Hazard. De-energize the drive and wait 5 minutes minimum until the Charge LED turns off.
Remove the front cover and terminal cover to do work on wiring, circuit boards, and other parts. Use terminals for their correct
function only. Incorrect wiring, incorrect ground connections, and incorrect repair of protective covers can cause death or serious
injury.
WARNING
Electrical Shock Hazard. Correctly ground the drive before you turn on the EMC filter switch. If you touch electrical
equipment that is not grounded, it can cause serious injury or death.
WARNING
Electrical Shock Hazard. Use the terminals for the drive only for their intended purpose. Refer to the technical
manual for more information about the I/O terminals. Wiring and grounding incorrectly or modifying the cover may damage the
equipment or cause injury.
◆
Standard Connection Diagram
Wire the drive as specified by
Standard Connection Diagram for 6-Phase/12-Pulse Drives on page 22
.
WARNING
Sudden Movement Hazard. Set the MFDI parameters before you close control circuit switches. Incorrect Run/
Stop circuit sequence settings can cause serious injury or death from moving equipment.
WARNING
Sudden Movement Hazard. Correctly wire the start/stop and safety circuits before you energize the drive. If you
momentarily close a digital input terminal, it can start a drive that is programmed for 3-Wire control and cause serious injury or death
from moving equipment.
WARNING
Sudden Movement Hazard. When you use a 3-Wire sequence, set A1-03 = 3330 [Initialize Parameters = 3-Wire
Initialization] and make sure that b1-17 = 0 [Run Command at Power Up = Disregard Existing RUN Command] (default). If you do
not correctly set the drive parameters for 3-Wire operation before you energize the drive, the motor can suddenly rotate when you
energize the drive.
WARNING
Sudden Movement Hazard. Check the I/O signals and the external sequences for the drive before you set the
Application Preset function. When you set the Application Preset function (A1-06
≠
0), it changes the I/O terminal functions for the
drive and it can cause equipment to operate unusually. This can cause serious injury or death.
WARNING
Fire Hazard. Install sufficient branch circuit short circuit protection as specified by applicable codes and this
manual. The drive is suitable for circuits that supply not more than 100,000 RMS symmetrical amperes, 480 Vac maximum (400 V
Class). Incorrect branch circuit short circuit protection can cause serious injury or death.
NOTICE
When the input voltage is 440 V or higher or the wiring distance is longer than 100 m (328 ft), make sure that the
motor insulation voltage is sufficient or use an inverter-duty motor or vector-duty motor with reinforced insulation. Motor winding and
insulation failure can occur.
Note:
Do not connect the AC control circuit ground to the drive enclosure. Failure to obey can cause incorrect control circuit operation.
