YASKAWA A1000 Installation Guide

A.2 Drive Specifications
YASKAWA ELECTRIC TOEP C710616 50B YASKAWA AC Drive - A1000 6-Phase/12-Pulse Input Installation Guide 55
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 <6>
Overvoltage Protection Stops when DC bus voltage exceeds approx. 820 V
Undervoltage Protection Stops when DC bus voltage falls below approx. 380 V
Momentary Power Loss
Ride-Thru
Immediately stop after 15 ms or longer power loss
<7> .
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 <8>
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 (Flange Type Enclosure)
Humidity 95 RH% or less (no condensation)
Storage Temperature -20°C to +60°C (short-term temperature during transportation)
Altitude Up to 1000 m without derating, up to 3000 m with output current and voltage derating.
Vibration/Shock
10 Hz to 20 Hz: 9.8 m/s
2
20 Hz to 55 Hz: 5.9 m/s
2
(CIMR-A4T0058 to 0165) or 2.0 m/s
2
(CIMR-A4T0208 to 0675)
Standard UL 508C
Protection Design Flange Type Enclosure (NEMA Type 12 Backside)
<1> Select control modes in accordance with drive capacity.
<2> 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.
<3> 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.
<4> 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.
<5> Actual specifications may vary depending on motor characteristics.
<6> Overload protection may be triggered when operating with 150% of the rated output current if the output frequency is less than 6 Hz.
<7> May be shorter due to load conditions and motor speed.
<8> 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.
Item Specification

YASKAWA A1000 Specifications

General

Type	AC Drive
Series	A1000
Input Voltage	200-240V, 380-480V
Frequency Range	0-400 Hz
Horsepower Range	0.5 to 1000 HP
Power Range	0.4 to 630 kW
Control Method	V/f Control
Overload Capacity	150% for 60 seconds
Braking	Dynamic Braking
Communication	Modbus
Safety	Safe Torque Off (STO)
Protection Features	Overcurrent, Overvoltage, Undervoltage, Overheat
Operating Temperature	-10 to +50°C
Storage Temperature	-20 to 60°C
Humidity	5 to 95% RH (non-condensing)
Enclosure	IP20