YASKAWA A1000 Technical Manual page 268

5.8 L: Protection Functions
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.
Overload Tolerance
150
Rated Speed = 100% Speed
60 s
A: Max. speed for 200LJ and above
B: Max. speed for 160MJ to 180 LJ
100
C: Max. speed for 132MJ and below
55
50
A
Continuous
0
110 100120 167 200
Speed (%)
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.
Overload Tolerance
150
Rated Speed = 100% Speed
A: Max. speed for 200LJ and above
60 s
B: Max. speed for 160MJ to 180 LJ
C: Max. speed for 132MJ and below
100
90
Continuous
50
A
0 1
100120 167 200
Speed (%)
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
150
60 s
130
100
Continuous
85
80
67
50
0
0 10 33
Motor Speed (%)
268
B
C
B
C
100 150
Cooling Ability
Motor is designed to effectively cool itself even at
low speeds.
Cooling Ability
Motor is designed to effectively cool itself at
ultra-low speeds.
Cooling Ability
Motor is designed to produce 100% torque at base
speed. Built with effective cooling capabilities.
YASKAWA ELECTRIC SIEP C710616 27G YASKAWA AC Drive A1000 Technical Manual
Overload Characteristics
Continuous operation with 100% load from 5 Hz to
50 Hz.
Overload Characteristics
Continuous operation with 100% load from 0.5 Hz to
50 Hz.
Overload Characteristics
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.