Periodic Inspection and Maintenance
1
1.5 Replace the Drive
YASKAWA TOEPYAIGA5001A GA500 DRIVE MAINTENANCE & TROUBLESHOOTING 23
1.5 Replace the Drive
◆ About the Control Circuit Board
You can remove the control circuit board of the drive and install a new board. If there is a failure in the drive, you can
use this feature to easily replace the control circuit board.
A - Control circuit board
Figure 1.16 Control Circuit Terminal Block
◆ Replace the Drive
DANGER! Electrical Shock Hazard. Disconnect all power to the drive and wait for the time specified on the warning label before you
remove covers. Check the drive for dangerous voltages before servicing or repair work. If you do work on the drive when it is
energized and there is no cover over the electronic circuits, it will cause serious injury or death from electrical shock. The drive has
internal capacitors that stay charged after you de-energize the drive.
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, measure 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. Only let approved personnel install, wire, maintain, examine, replace parts, and repair the
drive. If personnel are not approved, it can cause serious injury or death.
NOTICE: Damage to Equipment. When you touch the drive and circuit boards, make sure that you observe correct electrostatic
discharge (ESD) procedures. If you do not follow procedures, it can cause ESD damage to the drive circuitry.
■ Notes on Wiring the Main Circuit Terminal Block
Read these notes before you wire the main circuit terminal block.
WARNING! Fire Hazard. Remove the insulation from the connection wires to the wire stripping lengths shown in the manual. If the
stripping length is incorrect, the connection can cause a fire.
WARNING! Fire Hazard. Do not use bent or crushed wires. Remove the damaged end of the wire before you use it. Incorrect
connections can cause death or serious injury from fire.
WARNING! Fire Hazard. If you use stranded wire, make sure that all of the wire strands are in the connection. Also, do not twist the
stranded wire too much. Incorrect connections can cause death or serious injury from fire.
NOTICE: If you use power tools to tighten the terminal screws, use a low speed setting (300 min
-1
(r/min) to 400 min
-1
(r/min)). High
speeds can cause damage to the terminal screws.
• Use UL-Listed, vinyl-coated insulated copper wires for operation with a continuous maximum permitted
temperature of 75 °C at 600 V.
• Remove all unwanted objects that are near the terminal block connections.
• Remove the insulation from the connection wires to the wire stripping lengths shown in the manual.
• Do not solder stranded wire. Soldered wire connections can become loose over time and cause unsatisfactory drive
performance.
• Put the wire all the way into the terminal block. Remove the insulation from the wire to the recommended wire
stripping length to fit the wire with insulation in the plastic housing.
To Next Page
Loading...
