YASKAWA V1000 Series Installation & Start-Up Manual page 216

5.5 Alarm Detection
Loose wiring in the drive
input power terminals.
There is a problem with the
drive input power voltage.
Drive internal circuitry is
worn.
The drive input power
transformer is not large
enough and voltage drops
when the power is switched
on.
Air inside the drive is too hot. • Check the temperature inside the drive.
The CHARGE indicator light
is broken or disconnected.
216
• Ensure the terminals have been properly tightened.
• Apply the tightening torque specified in this manual to fasten
the terminals.
on page 65
• Check the voltage.
• Lower the voltage of the drive input power so that it is within
the limits listed in the specifications.
• Check the maintenance time for the capacitors (U4-05).
• Replace the drive if U4-05 exceeds 90%.
• Check for a tripped alarm when the magnetic contactor, line
breaker and leakage breaker are turned on.
• Check the capacity of the drive input power transformer.
• Replace the drive.
YASKAWA ELECTRIC TOEP C710606 09B YASKAWA AC Drive V1000 Installation & Start-Up Manual
Refer to Wire Gauges and Tightening Torque
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YES
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