YASKAWA T103 Installation & Primary Operation page 12

5 Common Drive Specifications
Item
You can use parameter settings for different limits in four quadrants in these control methods:
• OLV
• CLV
Torque Limits • AOLV
• AOLV/PM
• CLV/PM
• EZOLV
0.0 s to 6000.0 s
Acceleration and
Deceleration Times
The drive can set four pairs of different acceleration and deceleration times.
Approximately 20%
Approximately 125% with a dynamic braking option
• Short-time average deceleration torque
Motor output 0.4/0.75 kW: over 100%
Motor output 1.5 kW: over 50%
Motor output 2.2 kW and larger: over 20%, Overexcitation Braking/High Slip Braking allow for approximately 40%
• Continuous regenerative torque: Approximately 20%. Dynamic braking option allows for approximately 125%, 10%ED, 10 s
WARNING
• a regenerative converter
Braking Torque
• regenerative unit
• braking 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.
Select from 15 pre-defined V/f patterns, or a user-set V/f pattern.
V/f Characteristics
Torque Control, Droop Control, Speed/Torque Control Switching, Feed Forward Control, Zero Servo Function, Restart After Momentary Power Loss, Speed
Search, Overtorque/Undertorque Detection, Torque Limit, 17 Step Speed (maximum), 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
Main Control
Jump, Upper/Lower Limits for Frequency Reference, DC Injection Braking at Start and Stop, Overexcitation Braking, High Slip Braking, PID Control (with
Functions
Sleep Function), Energy Saving Control, MEMOBUS/Modbus Communication (RS-485 max, 115.2 kbps), Auto Restart, Application Presets, DriveWorksEZ
(customized functions), Removable Terminal Block with Parameter Backup Function, Online Tuning, KEB, Overexcitation Deceleration, Inertia (ASR)
Tuning, Overvoltage Suppression, High Frequency Injection
Item
Electronic thermal overload protection
Motor Protection
Momentary Drive stops when the output current is more than 200% of the HD output current.
Overcurrent
Protection
Drive stops when the output current is more than these overload tolerances:
• HD: 150% of the rated output current for 60 seconds The permitted frequency of overload is one time each 10 minutes.
• ND: 110% of the rated output current for 60 seconds The permitted frequency of overload is one time each 10 minutes.
Overload Protection
Note:
• If output frequency < 6 Hz, the drive can trigger the overload protection function when the output current is in the overload tolerance range.
• Derating can be necessary for applications that start and stop frequently.
Overvoltage
Stops when the DC bus voltage is more than approximately 820 V
Protection
Undervoltage Stops when the DC bus voltage decreases to less than approximately 380 V
Protection
Stops when power loss is longer than 15 ms.
Continues operation if power loss is shorter than 2 s (depending on parameter settings).
Momentary Power
Note:
Loss Ride-thru
• Stop time may be shortened depending on the load and motor speed.
• Drive capacity will change the continuous operation time.
Heatsink Overheat
The drive stops when the thermistor detects an IGBT temperature more than approximately 100 °C (212 °F). The trip temperature level is different for different
Protection
drive models.
Braking Resistor Overheat detection for braking resistor (optional ERF-type, 3% ED)
Overheat Protection
Stall prevention is available during acceleration, deceleration, and during run.
Stall Prevention
12
Set L3-04 = 0 [Stall Prevention during Decel = Disabled] when you operate the drive with:
Table 5.2 Protection Functions
Specification
Specification
YASKAWA TOEPC71061782C GA800 Drive Installation & Primary Operation