YASKAWA AC Drive-A1000 Technical Manual page 375

Item
Motor Protection
Momentary Overcurrent
Protection
Overload Protection
Overvoltage Protection
Undervoltage Protection
Protection Momentary Power Loss Ride-
Functions Thru
Heatsink Overheat Protection Thermistor
Braking Resistor Overheat
Protection
Stall Prevention
Ground Protection
DC Bus Charge LED
Area of Use
Ambient Temperature
Humidity
Environment
Storage Temperature
Altitude
Vibration/Shock
Safety Standard
Protection Design
<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> Disable Stall Prevention during deceleration (L3-04 = 0) when using a regenerative converter, a regenerative unit, a braking resistor or the Braking
Resistor Unit. The default setting for the Stall Prevention function will interfere with the braking resistor.
<3> Instantaneous average deceleration torque refers to the torque required to decelerate the motor (uncoupled from the load) from the rated motor speed
down to zero in the shortest time.
<4> Actual specifications may vary depending on motor characteristics.
<5> Overload protection may be triggered when operating with 150% of the rated output current if the output frequency is less than 6 Hz.
<6> May be shorter due to load conditions and motor speed.
<7> 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.
<8> Terminals H1, H2, DM+, and DM- on 600 V class models are designed to the functionality, but are not certified to EN61800-5-1, EN954-1/ISO13849
Cat. 3, IEC/EN61508 SIL2, Insulation coordination: class 1.
<9> Removing the top protective cover or bottom conduit bracket from an IP20/NEMA Type 1 drive voids NEMA Type 1 protection while maintaining
IP20 conformity.
YASKAWA ELECTRIC SIEP C710616 31B YASKAWA AC Drive – A1000 Technical Manual
Electronic thermal overload relay
Drive stops when output current exceeds 200% of Heavy Duty Rating
Drive stops after 60 s at 150% of rated Heavy Duty output current
600 V class: Stops when DC bus voltage exceeds approx. 1040 V
600 V class: Stops when DC bus voltage falls below approx. 475 V
Immediately stop after 15 ms or longer power loss
2 s (standard)
Overheat input signal for braking resistor (Optional ERF-type, 3% ED)
Stall Prevention is available during acceleration, deceleration, and during run.
<7>
Electronic circuit protection
Remains lit until DC bus voltage falls below 50 V
Indoors
-10 to 40 °C (NEMA Type 1), -10 to 50 °C (Open-Chassis), up to 60 °C with output current derating
<9>
95 RH% or less (no condensation)
-20 to 60 °C (short-term temperature during transportation)
Up to 1000 meters without derating, up to 3000 m with output current and voltage derating
2
20 to 55 Hz: 5.9 m/s (5A0003 to 5A0032)
<8>
UL 508 C
IP00/Open-Chassis, IP20/NEMA Type 1 enclosure
A.3 Drive Specifications
Specification
<5>
<6>
. Continuous operation during power loss than
<9>
A
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