YASKAWA AC Drive-A1000

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Item Specification

Protection

Functions

Motor Protection Electronic thermal overload relay

Momentary Overcurrent

Protection

Drive stops when output current exceeds 200% of Heavy Duty Rating

Overload Protection

Drive stops after 60 s at 150% of rated Heavy Duty output current

<5>

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

<6>

. Continuous operation during power loss than

2 s (standard)

Heatsink Overheat Protection Thermistor

Braking Resistor Overheat

Protection

Overheat input signal for braking resistor (Optional ERF-type, 3% ED)

Stall Prevention Stall Prevention is available during acceleration, deceleration, and during run.

Ground Protection

Electronic circuit protection

<7>

DC Bus Charge LED Remains lit until DC bus voltage falls below 50 V

Environment

Area of Use Indoors

Ambient Temperature

-10 to 40 °C (NEMA Type 1), -10 to 50 °C (Open-Chassis), up to 60 °C with output current derating

<9>

Humidity 95 RH% or less (no condensation)

Storage Temperature -20 to 60 °C (short-term temperature during transportation)

Altitude Up to 1000 meters without derating, up to 3000 m with output current and voltage derating

Vibration/Shock

20 to 55 Hz: 5.9 m/s

(5A0003 to 5A0032)

Safety Standard

UL 508 C

<8>

Protection Design

IP00/Open-Chassis, IP20/NEMA Type 1 enclosure

<9>

<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.