Yaskawa J1000 Compact V/f Control Drive - Manual (Page 193)

Nuisance Tripping Resulting from High AC Drive Carrier Frequency
Current waveforms generated by high carrier frequency PWM drives tend to create additional
temperature rise in overload relays. Therefore, it may be necessary to increase the trip level
setting when encountering nuisance triggering of the relay.
WARNING! Fire Hazard. Confirm an actual motor overload condition is not present prior to increasing the
thermal oL trip setting. Check local electrical codes before making adjustments to motor thermal overload
settings.
u NEMA Type 1 Kit
WARNING! Fire Hazard. Provide sufficient cooling when installing the drive inside an enclosed panel or
cabinet. Failure to comply could result in overheating and fire. When multiple drives are placed inside the
same enclosure panel, install proper cooling to ensure air entering the enclosure does not exceed 40 °C.
The optional NEMA Type 1 kit can be installed to raise the enclosure protection level of an
IP20/Open-Chassis drive to NEMA Type 1. Drives with a NEMA Type 1 kit cannot be
installed using side-by-side mounting unless the top cover is removed. The drive does not
retain NEMA Type 1 integrity with the top cover removed. Refer to Installation Orientation
and Spacing on page 30 for installation instructions.
n Installation Environment
Table 7.2 Installation Environment
Environment Conditions
Ambient
Temperature
-10 °C to +40 °C (NEMA Type 1/wall-mounted enclosure)
Drive reliability improves in environments without wide temperature fluctuations.
When using an enclosure panel, install a cooling fan or air conditioner in the area to ensure
that the air temperature inside the enclosure does not exceed the specified levels.
Do not allow ice to develop on the drive.
Refer to Installation Environment on page 29 for all other installation environment specifications.
7.4 Installing Peripheral Devices
YASKAWA ELECTRIC TOEP C710606 26D YASKAWA AC Drive – J1000 Quick Start Guide 193
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Peripheral Devices & Options