YASKAWA
TOEPC7106170YB YASKAWA AC Drive GA500 Installation & Primary Operation
13
Item
Specification
Overvoltage
Protection
200 V class: Stops when the DC bus voltage is more than approximately 410 V
400 V class: Stops when the DC bus voltage is more than approximately 820 V
Undervoltage
Protection
Single-phase 200 V class: Stops when the DC bus voltage decreases to less than approximately
160 V
Three-phase 200 V class: Stops when the DC bus voltage decreases to less than approximately
190 V
Three-phase 400 V class: Stops when the DC bus voltage decreases to less than approximately
380 V
Momentary
Power Loss
Ride-thru
Stops when power loss is longer than 15 ms and continues operation if power loss is shorter than
2 s (depending on parameter settings).
Note:
•
Load size and motor speed can cause the stop time to be shorter.
•
Drive capacity will change the continuous operation time. A Momentary Power Loss
Recovery Unit is necessary to continue operation through a 2 s power loss on models 2001
to 2021 and 4001 to 4012.
Heatsink
Overheat
Protection
Thermistor
Braking
Resistor
Overheat
Protection
Overheat detection for braking resistor (optional ERF-type, 3% ED)
Stall Prevention Stall prevention is available during acceleration, deceleration, and during run.
Ground Fault
Protection
Electronic circuit protection
Note:
This protection detects ground faults during run. The drive will not provide protection when:
•
There is a low-resistance ground fault for the motor cable or terminal block
•
Energizing the drive when there is a ground fault.
DC Bus Charge
LED
Charge LED illuminates when DC bus voltage is more than 50 V.
Table 4.4 Control Characteristics
Item
Specification
Control
Methods
•
V/f Control
•
Open Loop Vector
•
PM Open Loop Vector
•
PM Advanced Open Loop Vector
•
EZ Vector Control
Frequency
Control Range
•
V/f, OLV, and OLV/PM: 0.01 Hz to 590 Hz
•
AOLV/PM: 0.01 Hz to 270 Hz
•
EZOLV: 0.01 Hz to 120 Hz