YASKAWA GA800 Series Installation Manual page 75

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.
Make sure that there is 2 mm (0.08 in) minimum of space between drives.
2 : IP20/NEMA Type 1/IP55
Derates the drive rated output current from "-10 °C to 40 °C 100%" to "40 °C 100%" to "50 °C 85%". Use this setting
to install IP55/UL Type 12 Heatsink External Mounting drives.
3 : Finless
Derates the drive rated output current from "-10 °C to 40 °C 100%" to "40 °C 100%" to "50 °C 85%". Use this setting
to install a finless drive.
A - L8-35 = 0
B - L8-35 = 2, L8-35 = 3
Altitude Derating
Install the drive in a location that has an altitude of 1000 m (3281 ft) or lower.
Derate the output current by 1% for each 100 m (328 ft) to install the drive in altitudes between 1000 to 4000 m (3281
to 13123 ft).
It is not necessary to derate the rated voltage in these conditions:
• Installing the drive at 2000 m (6562 ft) or lower
• Installing the drive between 2000 to 4000 m (6562 to 13123 ft) and grounding the neutral point on the power
supply.
If you do not ground the drive with a neutral network, contact Yaskawa or your nearest sales representative.
YASKAWA TOEPC71061779B GA800 Drive Installation Manual
Figure 5.1 Derating Depending on Drive Installation Method
C - L8-35 = 1
5 Specifications
75