YASKAWA A1000 Series User Manual

A.1 Heavy Duty and Normal Duty Ratings
The capacity of the drive is based on two types of load characteristics: Heavy Duty (HD) and Normal Duty (ND).
Refer to the following table for the differences between HD and ND.
Table A.1
Selecting the Appropriate Load Rating
Setting Parameter
C6-01
Rated Output Current Overload Tolerance Default Carrier Frequency
0: Heavy Duty
HD Rating varies by model
<1>
150% rated output current for 60 s 2 kHz
1: Normal Duty
(default)
ND Rating varies by model
<1>
120% rated output current for 60 s varies by model 2 kHz, Swing PWM
<1> Refer to Power Ratings on page 235 for information on rating changes based on drive model.
TERMSTERMS
• HD and ND: HD refers to applications requiring constant torque output, while ND refers to applications with
variable
torque needs. The drive allows the user to select HD or ND torque depending on the application. Fans,
pumps, and blowers should use ND (C6-01 = 1), and other applications generally use HD (C6-01 = 0).
• Swing PWM: Swing PWM equivalent to a 2 kHz audible noise. This function turns the motor noise into a less
obtrusive white noise.
Note: Differences between HD ratings and ND ratings for the drive include rated input and output current, overload capacity, carrier frequency,
and current limit. The default setting is for ND (C6-01 = 1).
A.1 Heavy Duty and Normal Duty Ratings
234
YASKAWA ELECTRIC TOEP C710616 41G YASKAWA AC Drive - A1000 Quick Start Guide

YASKAWA A1000 Series Specifications

General

Series	A1000
Type	AC Drive
Altitude	Up to 1000m without derating
Output Frequency	0-400 Hz
Control Method	V/f Control
Overload Capacity	150% for 60 seconds
Communication Options	Modbus, DeviceNet, Profibus, Ethernet/IP
Ambient Temperature	-10 to 50°C
Storage Temperature	-20 to 60°C
Humidity	5% to 95% (non-condensing)
Enclosure Rating	IP20
Horsepower	0.5 to 1000 HP
Power Range	0.4 - 630 kW (varies by voltage and model)
Protection Features	Overcurrent, Overvoltage, Undervoltage, Overheat
Cooling Method	Fan Cooled
Safety	Safe Torque Off (STO)