Electrical Installation; Standard Connection Diagram - YASKAWA GA800 Programming Manual

4.3

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. The drive has internal
capacitors that stay charged after you de-energize the drive.
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. 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
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 in reverse
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 suited for circuits that supply not more than 100,000 RMS symmetrical amperes, 240 Vac maximum (200 V Class), 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. Incorrect ground wiring can cause the control circuit to operate
incorrectly.
YASKAWA TOEPYAIGA8002B GA800 Drive Programming
Figure 4.14.

4.3 Electrical Installation

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