10.7 Drive Derating
450 YASKAWA SIEPC71061737B GA800 Drive Technical Reference
Model
Rated Current (A)
Heavy Duty Rating (HD)
*1
Parameter C6-01 = 0
Normal Duty Rating (ND)
*1
Parameter C6-01 = 1
2 kHz
(2 kHz)
4 kHz
(-)
6 kHz
(5 kHz)
8 kHz
(8 kHz)
10 kHz
(10 kHz)
12 kHz
(12.5 kHz)
2 kHz
(2 kHz)
4 kHz
(-)
6 kHz
(5 kHz)
8 kHz
(8 kHz)
10 kHz
(10 kHz)
12 kHz
(12.5 kHz)
4023 18.0 15.6 13.2 10.8 8.4 6.0 21.0 18.3 15.5 12.7 9.9 7.0
4031 27.2 23.5 19.8 16.1 12.4 8.7 27.0 23.3 19.6 16.0 12.3 8.6
4038 34.7 30.1 25.5 20.8 16.2 11.6 34.0 30.9 26.2 21.4 16.6 11.9
4044 34.0 34.0 32.1 26.2 20.4 14.6 40.0 37.8 32.3 26.8 21.3 15.8
4060 40.0 40.0 37.4 29.6 21.7 13.9 52.0 44.3 36.7 29.0 21.3 13.6
4075 52.0 52.0 49.0 40.1 31.2 22.3 65.0 60.9 51.4 42.0 32.5 23.0
4089 65.0 65.0 61.3 50.1 39.0 27.9 77.0 72.9 61.7 50.6 39.4 28.2
4103 77.0 77.0 72.6 59.4 46.2 33.0 96.0 93.6 79.4 65.1 50.9 36.6
4140 96.0 90.2 73.0 55.7 38.4 - 124.0 101.1 78.0 54.9 31.9 -
4168 124.0 116.6 94.2 71.9 49.6 - 156.0 131.7 107.4 83.1 58.8 -
4208 156.0 146.6 118.6 90.5 62.4 - 180.0 143.2 106.5 69.7 33.0 -
4250 180.0 169.2 136.8 104.4 72.0 - 240.0 199.4 158.7 118.1 77.4 -
4302 240.0 225.6 182.4 139.2 96.0 - 302.0 252.2 202.3 152.5 102.6 -
4371 302.0 283.9 229.5 175.2 120.8 - 361.0 297.2 233.5 169.7 105.9 -
4414 361.0 339.3 274.4 209.4 144.4 - 414.0 347.6 281.1 214.7 148.3 -
4477 414.0 310.5 - - - - 477.0 312.6 - - - -
4568 477.0 357.8 - - - - 515.0 337.5 - - - -
4605 515.0 386.3 - - - - 605.0 406.7 - - - -
4720 605.0 453.8 - - - - 720.0 484.0 - - - -
*1 The upper values are for A1-02 = 6 [Control Method Selection = AOLV/PM]. The values in parenthesis are for A1-02 = 4 [ALOV].
◆ Derating Depending on Ambient Temperature
When you install drives in a place where ambient temperatures are higher than the rated conditions or install drives
side-by-side in the enclosure panel, set L8-12 [Ambient Temperature] and L8-35 [Installation Method Selection].
Derate the output current as specified in Figure 10.1.
No.
(Hex.)
Name Description
Default
(Range)
L8-12
(04B8)
Ambient Temperature
Setting
Sets the ambient temperature of the drive installation area.
40 °C
(-10 °C - +50 °C)
No.
(Hex.)
Name Description
Default
(Range)
L8-35
(04EC)
Installation Method
Selection
Sets the type of drive installation.
Determined by the drive
(0 - 3)
0 : IP20/OpenChassis Enc/Ex Heatsink
You can use the drive within the rated output current range of -10 °C to 50 °C 100%. Use this setting to install an
IP20/UL Open Type drive or when the heatsink (cooling fin) is outside the enclosure panel.
Make sure that there is 30 mm (1.18 in) minimum of space between drives or between the drive and side of the
enclosure panel.
1 : Side-by-Side Mounting
Derates the drive rated output current from "-10 °C to 30 °C 100%" to "30 °C 100%" to "50 °C 70%". Use this setting
to install more than one drive Side-by-Side.
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