YASKAWA A1000 Installation Manual page 55

Item
Motor Protection
Momentary Overcurrent
Protection
Overload Protection
Overvoltage Protection
Undervoltage Protection Stops when DC bus voltage falls below approx. 380 V
Momentary Power Loss
Protection
Ride-Thru
Functions
Heatsink Overheat
Protection
Braking Resistor
Overheat Protection
Stall Prevention
Ground Protection
DC Bus Charge LED
Area of Use
Ambient Temperature
Humidity
Environment
Storage Temperature
Altitude
Vibration/Shock
Standard
Protection Design
<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.
YASKAWA ELECTRIC TOEP C710616 50B YASKAWA AC Drive - A1000 6-Phase/12-Pulse Input Installation Guide
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
Stops when DC bus voltage exceeds approx. 820 V
Immediately stop after 15 ms or longer power loss
Continuous operation during power loss than 2 s (standard)
Thermistor
Overheat input signal for braking resistor (Optional ERF-type, 3% ED)
Stall Prevention is available during acceleration, deceleration, and during run.
Electronic circuit protection
<8>
Remains lit until DC bus voltage falls below 50 V
Indoors
-10°C to +40°C (Flange Type Enclosure)
95 RH% or less (no condensation)
-20°C to +60°C (short-term temperature during transportation)
Up to 1000 m without derating, up to 3000 m with output current and voltage derating.
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
UL 508C
Flange Type Enclosure (NEMA Type 12 Backside)
A.2 Drive Specifications
Specification
<6>
.
<7>
2 (CIMR-A 4T0208 to 0675)
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