80
YASKAWA
TOEPC71061752B GA500 Drive Installation & Primary Operation
11
Maintenance
Refer to the Maintenance & Troubleshooting Manual (TOEPYAIGA5001) for more
information.
Only let authorized persons do maintenance, examine, or replace components on the drive.
Read this manual carefully and know all the precautions and safety information before
installing, wiring, repairing, or examining the drive or replacing components.
Examine and maintain the drive and peripheral devices regularly to extend the life of the drive
and decrease performance deterioration, decrease early wear, and decrease drive failures.
Regular examinations and maintenance will also decrease system downtime.
Refer to the Technical Reference (SIEPC71061752) for more information about maintenance
and examinations.
Examine the drive one time each year at a minimum.
The operating conditions, environmental conditions, and use conditions will have an effect on
the examination frequency for connected equipment.
Examine the drive more frequently if you use the drive in bad conditions or in these conditions:
•
High ambient temperatures
•
Frequent starting and stopping
•
Changes in the AC power supply or load
•
Too much vibration or shock loading
•
Dust, metal dust, salt, sulfuric acid, or chlorine atmospheres
•
Unsatisfactory storage conditions.
The drive has Maintenance Monitors that keep track of component wear and warn maintenance
period when the estimated performance life is approaching. This Maintenance Monitor
eliminates the need to shut down the entire system for unexpected problems.
Users can set alarm notifications to inform the maintenance periods for a specific drive
component.
12
Drive Control, Duty Modes, and Programming
◆
Control Method Selection
This section gives basic information about the control methods for induction motors.
•
V/f Control
•
Open Loop Vector
•
EZ Vector Control
Refer to the Technical Reference for information about the control method for a PM/SynR
motor.
Select the most applicable control method for your application. Parameter
A1-02 [Control
Method Selection]
sets drive control.