14 Drive Specifications
76 YASKAWA TOEPC71061723A YASKAWA AC Drive CR700 Quick Start Guide
Item Specification
V/f Characteristics
Select from 15 predefined V/f patterns, or a user-set V/f pattern.
Main Control
Functions
Droop Control, Feed Forward Control, Zero Servo Function, Torque Limit, 9 Step Speed (max.), Accel/Decel Switch, S-curve Accel/Decel, Auto-Tuning
(Rotational and Stationary), 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, MEMOBUS/Modbus Communication (RS-485: max. 115.2 kbps),
Removable Terminal Block with Parameter Backup Function, Online Tuning, Overexcitation Deceleration, Inertia (ASR) Tuning, Crane Sequence.
Table 14.2 Protection Function
Item Specification
Motor Protection
Electronic thermal overload protection
Momentary
Overcurrent
Protection
Drive stops when the output current is more than 200% of the rated output current.
Overload Protection
Drive stops when the output current is more than 150% of the rated output current for 60 s.
Note:
The drive may trigger the overload protection function at 150% of the drive rated output in under 60 s if the output frequency is less than 6 Hz.
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
200 V class: Stops when the DC bus voltage decreases to less than approximately 190 V
400 V class: Stops when the DC bus voltage decreases to less than approximately 380 V
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 any 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 present.
DC Bus Charge LED
Charge LED illuminates when DC bus voltage is above 50 V.
Table 14.3 Environment
Environment
Conditions
Area of Use
Indoors
• Noxious Fumes: IEC60721-3-3:3C2
• Dust: IEC60721-3-3:3S2
Power Supply
Overvoltage Category III
Ambient
Temperature
Open chassis type (IP20): -10°C to +50 °C (14 °F to 122 °F)
Enclosed wall-mounted type (UL Type 1): -10 °C to +40 °C (14 °F to 104 °F)
• Do not use the drive in a location where the temperature changes suddenly to improve the drive reliability.
• When installing the drive in an enclosure, use a cooling fan or air conditioner to keep the internal air temperature in the permitted range.
• Do not let the drive freeze.
• Derate the output current and output voltage to install the drive in areas with ambient temperatures ≤ 60 °C (140 °F).
Humidity
95% RH or less
Do not let condensation form on the drive.
Storage Temperature
-20 °C to +70 °C (-4 °F to +158 °F) (short-term temperature during transportation)
Surrounding Area
Pollution degree 2 or less
Install the drive in an area without:
• Oil mist, corrosive or flammable gas, or dust
• Metal powder, oil, water, or other unwanted materials
• Radioactive materials or flammable materials, including wood
• Harmful gas or fluids
• Salt
• Direct sunlight
Keep wood or other flammable materials away from the drive.
Altitude
1000 m (3281 ft.) maximum
Note:
Derate the output current by 1% for each 100 m (328 ft.) to install the drive in altitudes between 1000 m to 4000 m (3281 ft. to 13123 ft.).
It is not necessary to derate the rated voltage in these conditions:
• Installing the drive at 2000 m (6562 ft.) or lower
• Installing the drive between 2000 m to 4000 m (6562 ft. to 13123 ft.) and grounding the neutral point on the power supply.
Contact Yaskawa or your nearest sales representative when not grounding the neutral point.
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