Section Safety - YASKAWA GA800 Technical Reference

3.1 Section Safety

3.1

Section Safety

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.
Do not operate the drive when covers are missing. Replace covers and shields before you operate
the drive. Use the drive only as specified by the instructions.
Some figures in this section include drives without covers or safety shields to more clearly show the inside of the
drive. If covers or safety shields are missing from the drive, it can cause serious injury or death.
Ground the neutral point on the power supply of drive models 2xxxB/C and 4xxxB/C to comply with
the EMC Directive before you turn on the EMC filter.
If you turn ON the EMC filter, but you do not ground the neutral point, it can cause serious injury or death.
Make sure that the protective ground wire complies with technical standards and local safety
regulations. The IEC/EN 61800-5-1:2007 standard specifies that you must wire the power supply to
automatically de-energize when the protective ground wire disconnects. You can also connect a
protective ground wire that has a minimum cross-sectional area of 10mm
(aluminum wire). The leakage current of the drive will be more than 3.5 mA in drive models;
• 2xxxB
• 2xxxC
• 4002B to 4371B
• 4002C to 4371C (with built-in EMC filter turned ON)
• 4414 to 4720
• T414 to T720
If you do not obey the standards and regulations, it can cause serious injury or death.
When there is a DC component in the protective earthing conductor, the drive can cause a residual
current. When a residual current operated protective or monitoring device prevents direct or
indirect contact, always use a type B Ground Fault Circuit Interrupter (GFCI) as specified by IEC/EN
60755.
If you do not use the correct GFCI, it can cause serious injury or death.
Do not wear loose clothing or jewelry when you do work on the drive. Tighten loose clothing and
remove all metal objects, for example watches or rings.
Loose clothing can catch on the drive and jewelry can conduct electricity and cause serious injury or death.
Do not remove covers or touch circuit boards while the drive is energized.
If you touch the internal components of an energized drive, it can cause serious injury or death.
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.
Do not modify the drive body or drive circuitry.
Modifications to drive body and circuitry can cause serious injury or death, will cause damage to the drive, and will
void the warranty. Yaskawa is not responsible for modifications of the product made by the user.
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DANGER
Electrical Shock Hazard
WARNING
Electrical Shock Hazard
2 (copper wire) or 16 mm
YASKAWA SIEPC71061737D GA800 Drive Technical Reference
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