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5.8 L: Protection Functions
YASKAWA ELECTRIC
SIEP C710636 02B YASKAWA U1000 Technical Manual
297
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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 at slower speeds with full load can 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 slower speeds with full load can 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 6 Hz to
60 Hz.
Overload Tolerance
Cooling Ability
Overload Characteristics
Motor is designed to effectively cool itself at
ultra-low speeds.
Continuous operation with 100% load from 0.6 Hz to
60 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 (%)
T
orque (%)
100
150
110
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
100120 167 200
A
B
C
Speed (%)
Rated Speed=100% Speed
T
orque (%)
60 s
Continuous
Continuous
60 s
Motor Speed (%)
T
orque (%)
150
10
33
100
120
100
80
50
0.0
SIEP_C710636_02B_1_0.book 297 ページ 2015年11月25日 水曜日 午後4時56分