Yaskawa Z1000U HVAC Matrix Bypass - Manual (Page 49)

u Safety Messages
WARNING
Heed the safety messages in this manual.
Failure to comply could result in death or serious injury.
The operating company is responsible for any injuries or equipment damage resulting from failure to heed the warnings in
this manual.
Sudden Movement Hazard
System may start unexpectedly upon application of power, resulting in death or serious injury.
Clear all personnel from the drive, motor and machine area before applying power. Secure covers, couplings, shaft keys and
machine loads before applying power to the drive.
Electrical Shock Hazard
Do not connect or disconnect wiring while the power is on.
Failure to comply could result in death or serious injury.
Before servicing, 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 for at least the time specified on the warning label, once all indicators are OFF, measure for unsafe voltages to confirm
the drive is safe prior to servicing.
Do not attempt to modify or alter the drive in any way not explained in this manual.
Failure to comply could result in death or serious injury.
Yaskawa is not responsible for any modification of the product made by the user. This product must not be modified.
Do not allow unqualified personnel to use equipment.
Failure to comply could result in death or serious injury.
Maintenance, inspection, and replacement of parts must be performed only by authorized personnel familiar with installation,
adjustment and maintenance of AC drives.
Do not remove covers or touch circuit boards while the power is on.
Failure to comply could result in death or serious injury.
Make sure the protective earthing conductor complies with technical standards and local safety regulations.
Because the leakage current exceeds 3.5 mA, IEC/EN 61800-5-1 states that either the power supply must be automatically
disconnected in case of discontinuity of the protective earthing conductor or a protective earthing conductor with a cross-
section of at least 10 mm
2 (Cu) or 16 mm 2 (Al) must be used. Failure to comply may result in death or serious injury.
Always use appropriate equipment for Ground Fault Circuit Interrupters (GFCIs).
The drive can cause a residual current with a DC component in the protective earthing conductor. Where a residual current
operated protective or monitoring device is used for protection in case of direct or indirect contact, always use a type B GFCI
according to IEC/EN 60755.
Fire Hazard
Branch Circuit protection is required to be installed according to applicable local codes and the requirements listed on the
bypass nameplate. Failure to comply could result in fire and damage to the bypass and drive or injury to personnel. Bypass
models without soft-starter option PW are suitable for use on a circuit capable of delivering not more than 100,000 RMS
symmetrical amperes, 208 Vac and 480 Vac. Bypass models D169 to D211 and B180 to B414 with option PW are also
suitable for use on a circuit capable of delivering not more than 100,000 RMS symmetrical amperes, 208 Vac and 480 Vac.
Bypass models D024 to D143 and B011 to B156 with option PW are suitable for use on a circuit capable of delivering not
more than 65,000 RMS symmetrical amperes, 208 Vac and 480 Vac.
Do not use an improper voltage source.
Failure to comply could result in death or serious injury by fire.
Verify that the rated voltage of the drive matches the voltage of the incoming power supply before applying power.
i.2 General Safety
YASKAWA SIEP YAIZ1D 01A Z1000U HVAC MATRIX Drive Bypass Technical Manual 49