Yaskawa A1000 6-Phase/12-Pulse Input - Manual (Page 41)

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 <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
Flange Type Enclosure: -10 °C to +40 °C (14 °F to 104 °F)
Non-Flange Type Enclosure: -10 °C to +50 °C (14 °F to 122 °F)
Humidity 95 RH% or less (no condensation)
Storage Temperature -20 °C 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
10 Hz to 20 Hz: 9.8 m/s 2
20 Hz to 55 Hz: 5.9 m/s 2 (4T0058o to 4T0165o) or 2.0 m/s 2 (4T0208o to 4T0675o)
Standard
• UL508C
• IEC/EN 61800-3, IEC/EN 61800-5-1
• Two Safe Disable inputs and one EDM output according to ISO/EN 13849-1 Cat. 3 PLd, IEC/EN
61508 SIL2
Protection Design
Flange Type Enclosure (NEMA Type 12 Backside)
Open-Type (Non-Flange) Enclosure
<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.
8 Specifications
YASKAWA TOEP YAIA1U 02A YASKAWA AC Drive – A1000 6-Phase/12-Pulse Input Installation Manual 41