Yaskawa J1000 Compact V/f Control Drive - Manual (Page 166)

Inspection
Category
Inspection Points Corrective Action Checked
Cooling Fan • Inspect drive cooling fan operation.
• Check for clogged or dirty fan.
• Check fan operation drive parameter.
Environment
• Verify the drive environment complies
with the specifications listed in the
Installation section of this manual.
• Eliminate the source of contaminants
or correct poor environment.
Load
• The drive output current should not be
higher than the motor or drive rating for
an extended period of time.
• Check for excessive load.
• Check the motor parameter settings
of the drive.
Power Supply
Voltage
• Check main power supply and control
voltages.
• Correct the voltage or power supply
to within nameplate specifications.
• Verify all main circuit phases.
u Recommended Periodic Inspection
Table 6.2 outlines the recommended periodic inspections for Yaskawa drive installations.
Periodic inspections should generally be checked every 3-6 months; however, the drive may
require more frequent inspection due to poor environments or rigorous use. Operating and
environmental conditions, along with experience in each application, will determine the actual
inspection frequency for each installation. Periodic inspection will help to avoid premature
deterioration in performance or product failure. Copy this checklist and mark the “Checked”
column after each inspection.
n Periodic Inspection
WARNING! Electrical Shock Hazard. Do not connect or disconnect wiring while the power is on. Failure to
comply can result in serious personal injury. Before servicing the drive, disconnect all power to the equipment.
The internal capacitor remains charged even after the power supply is turned off. The charge indicator LED
will extinguish when the DC bus voltage is below 50 Vdc. To prevent electric shock, wait at least one minute
after all indicators are OFF and measure the DC bus voltage level to confirm safe level.
Table 6.2 Periodic Inspection Checklist
Inspection
Area
Inspection Points Corrective Action Checked
Main Circuit Periodic Inspection
General
• Inspect equipment for discoloration
from overheating or deterioration.
• Inspect for damaged or deformed parts.
• Replace damaged components as
required.
• The drive has few serviceable parts
and may require complete drive
replacement.
• Inspect for dirt, foreign particles, or dust
collection on components.
• Inspect enclosure door seal if
present. Replace components if
cleaning is not possible.
• Remove foreign particles and dust
with a vacuum cleaner to avoid
touching parts.
6.2 Inspection
166 YASKAWA ELECTRIC TOEP C710606 26D YASKAWA AC Drive – J1000 Quick Start Guide