YASKAWA A1000 Technical Manual

5.8 L: Protection Functions
268 YASKAWA ELECTRIC SIEP C710616 27G YASKAWA AC Drive A1000 Technical Manual
Setting 2: Drive dedicated motor (speed range for constant torque: 1:10)
Use this setting when operating a drive duty motor that allows constant torque in a speed range of 1:10. The drive will
allow the motor to run with 100% load from 10% up to 100% speed. Running the motor below 10% speed with 100%
load will trigger an overload fault.
Setting 3: Vector motor (speed range for constant torque: 1:100)
Use this setting when operating a drive-dedicated motor that allows constant torque in a speed range of 1:100. This motor
type is allowed to run with 100% load from 1% up to 100% speed. Running the motor below 1% speed with 100% load
will trigger an overload fault.
Setting 4: PM derated torque motor
This setting is for operating a PM motor. PM motors for derated torque have a self-cooling design, so the overload
tolerance drops as the motor slows. Electronic thermal overload is triggered in accordance with the motor overload
characteristics, providing overheat protection across the entire speed range.
Overload Tolerance Cooling Ability Overload Characteristics
Motor is designed to effectively cool itself even at
low speeds.
Continuous operation with 100% load from 5 Hz to
50 Hz.
Overload Tolerance Cooling Ability Overload Characteristics
Motor is designed to effectively cool itself at
ultra-low speeds.
Continuous operation with 100% load from 0.5 Hz to
50 Hz.
Overload Tolerance Cooling Ability Overload Characteristics
Motor is designed to produce 100% torque at base
speed. Built with effective cooling capabilities.
Reaching 100% when operating at below the base
frequency will cause a motor overload fault (oL1).
The drive fault output closes and the motor coasts to
stop.
A: Max. speed for 200LJ and above
B: Max. speed for 160MJ to 180 LJ
C: Max. speed for 132MJ and below
Rated Speed = 100% Speed
60 s
A
B
C
Speed (%)
Torque (%)
100
150
1
10
100120
167 200
55
50
0
Continuous
A: Max. speed for 200LJ and above
B: Max. speed for 160MJ to 180 LJ
C: Max. speed for 132MJ and below
150
100
90
50
0
1
100
120
167
200
A
B
C
Speed (%)
Rated Speed = 100% Speed
Torque (%)
60 s
Continuous
Motor Speed (%)
150
60 s
130
100
67
50
0
010 100 150
80
85
33
Torque (%)
Continuous

YASKAWA A1000 Specifications

General

Type	AC Drive
Series	A1000
Input Voltage	200-240V, 380-480V
Frequency Range	0-400 Hz
Horsepower Range	0.5 to 1000 HP
Power Range	0.4 to 630 kW
Control Method	V/f Control
Overload Capacity	150% for 60 seconds
Braking	Dynamic Braking
Communication	Modbus
Safety	Safe Torque Off (STO)
Protection Features	Overcurrent, Overvoltage, Undervoltage, Overheat
Operating Temperature	-10 to +50°C
Storage Temperature	-20 to 60°C
Humidity	5 to 95% RH (non-condensing)
Enclosure	IP20