5.8 L: Protection Functions
186 YASKAWA ELECTRIC SIEP C710606 44B YASKAWA AC Drive T1000V Technical Manual
Setting 2: Drive Dedicated Motor (constant torque, 1:10)
Use this setting when operating a drive duty motor with a torque ratio of 1:10. This motor type is allowed to run with
100% load from 10% up to 100% speed. Running slower speeds with full load can trigger an overload fault.
Setting 3: Vector Motor (constant torque, 1:100)
Use this setting when operating a drive dedicated motor with a torque ratio of 1:100. This motor type is allowed to run
with 100% load from 1% up to 100% speed. Running slower speeds with full load can trigger an overload fault.
Setting 4: PM Motor for Derated Torque
This setting is for operating a PM motor for derated torque. This motor has 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 Capability
Overload Characteristics
at 100% Motor Load
Motor is designed to effectively cool
itself even at low speeds
(as lower as 6 Hz).
Continuous operation with 100% load
from 6 Hz to 50/60 Hz.
Overload Tolerance Cooling Capability
Overload Characteristics
at 100% Motor Load
Motor is designed to effectively cool
itself at ultra-low speeds (about 0.6 Hz).
Continuous operation with 100% load
from 0.6 Hz to 50/60 Hz.
Overload Tolerance Cooling Capability
Overload Characteristics
at 100% Motor Load
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
Continuous
A
B
C
Speed (%)
Torque (%)
100
150
1
10
100120
167 200
55
50
0
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
Continuous
Speed (%)
Rated Speed=100% Speed
Torque (%)
60 s
Continuous
60 s
Motor Speed (%)
Torque (%)
150
10 33 100
120
100
80
50
0.0
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