Yaskawa Z1000 AC Drive HVAC - Manual (Page 254)

Item Specification
Protection
Functions
Motor Protection Electronic thermal overload relay
Momentary Overcurrent
Protection
Drive stops when rated output current exceeds 175%
Overload Protection
Drive stops after 60 s at 110% of rated output current <2>
Drive stops after 0.5 s at 140% of rated output current <2>
Overvoltage Protection 600 V class: Stops when DC bus voltage exceeds approx. 1040 V
Undervoltage Protection 600 V class: Stops when DC bus voltage falls below approx. 475 V
Momentary Power Loss
Ride-Thru
Immediately stop after 15 ms or longer power loss <3>
Continuous operation during power loss shorter than 2 s by speed search function
Heatsink Overheat
Protection
Thermistor
Stall Prevention Stall Prevention is available during acceleration, deceleration, and during run.
Ground Protection Electronic circuit protection <4>
DC Bus Charge LED Remains lit until DC bus voltage falls below 50 V
Environment
Area of Use Indoors
Ambient Temperature
-10 °C to +40 °C (14 to 104 °F) IP20/NEMA Type 1 Enclosure
-10 °C to +50 °C (14 to 122 °F) IP00/Open Type Enclosure
Humidity 95% RH or less (no condensation)
Storage Temperature -20 °C to +70 °C (-4 to +158 °F) (short-term temperature during transportation)
Altitude
Up to 1000 meters without derating, up to 3000 m with output current and voltage derating. Refer to
Altitude Derating on page 260 for details.
Vibration/Shock
10 to 20 Hz: 9.8 m/s 2
20 to 55 Hz: 5.9 m/s 2 (5A0003 to 5A0099)
2.0 m/s 2 (5A0125 to 5A0242)
Standards
• UL508C
• IEC/EN 61800-5-1
• CSA
Protection Design IP00/Open Type enclosure, IP20/NEMA Type 1 enclosure <5>
<1> The accuracy of these values depends on motor characteristics, ambient conditions, and drive settings. Specifications may vary with different motors
and with changing motor temperature. Contact Yaskawa for consultation.
<2> Overload protection may be triggered when operating with 150% of the rated output current if the output frequency is less than 6 Hz.
<3> May be shorter due to load conditions and motor speed.
<4> Ground protection cannot be provided when the impedance of the ground fault path is too low, or when the drive is powered up while a ground
fault is present at the output.
<5> Removing the top protective cover or bottom conduit bracket from an IP20/NEMA Type 1 enclosure drive voids NEMA Type 1 protection while
maintaining IP20 conformity. This is applicable to models 5A0003 to 5A0242.
A.2 Drive Specifications
254 YASKAWA ELECTRIC TOEP YAIZ1U 03A YASKAWA AC Drive – Z1000 User Manual