LEESON FHP Series Chassis Mount Variable Speed Drives - Manual (Page 26)

16 Installation
• Protect the drive from dirt, moisture, and accidental
contact. Provide sufficient room for access to the
terminal block and calibration trimpots.
• Mount the drive away from heat sources. Operate the
drive within the specified ambient operating temperature
range.
• Prevent loose connections by avoiding excessive
vibration of the drive.
• The chassis must be earth grounded. Use a star washer
beneath the head of at least one of the mounting screws
to penetrate the anodized chassis surface and to reach
bare metal.