YASKAWA
TOEPC7106170YB YASKAWA AC Drive GA500 Installation & Primary Operation
15
Item
Specification
Braking Torque
Approximately 20% without a resistor
Approximately 125% with a dynamic braking option
WARNING
Set L3-04 = 0 [Stall Prevention during Decel = Disabled] when
you operate the drive with:
• a regenerative converter
• regenerative unit
• braking resistor
• braking resistor unit.
If you set the parameter incorrectly, the drive can decelerate for too long and cause
serious injury or death.
Note:
•
Short-time average deceleration torque refers to the torque needed to decelerate the motor
(uncoupled from the load) from the rated speed to zero. Motor characteristics can change
the actual specifications.
•
Motor characteristics change the continuous regenerative torque and short-time average
deceleration torque for motors 2.2 kW and larger.
V/f
Characteristics
Select from 15 pre-defined V/f patterns, or a user-set V/f pattern.
Main Control
Functions
Feed Forward Control, Restart After Momentary Power Loss, Speed Search, Overtorque
Detection, Torque Limit, 17 Step Speed (max.), Accel/Decel Switch, S-curve Acceleration/
Deceleration, 3-wire Sequence, Auto-Tuning (Rotational and Stationary), Dwell Function,
Cooling Fan ON/OFF Switch, Slip Compensation, Torque Compensation, Frequency Jump,
Upper/Lower Limits for Frequency Reference, DC Injection Braking at Start and Stop,
Overexcitation Braking, High Slip Braking, PID Control (with Sleep Function), Energy Saving
Control, MEMOBUS/Modbus Communications (RS-485 max, 115.2 kbps), Auto Restart,
Application Presets, DriveWorksEZ (customized functions), Parameter Backup Function, Online
Tuning, KEB, Overexcitation Deceleration, Overvoltage Suppression, High Frequency
Injection, etc.
5
Moving the Drive
When you move and install this product, make sure that you obey local laws and
regulations.
CAUTION
Crush Hazard. Do not hold the drive by the keypad or front cover. Tighten the
screws correctly when you move the drive. If the drive or covers fall, it can cause moderate injury.