LEESON NEMA 1 PWM Control: M1740008.00 - Manual (Page 3)

1
ƽ Safety Warnings
This symbol
ƽ denotes an important safety message.
Please read these sections carefully before performing any
of the instructions contained in this manual.
• Have a qualified electrical maintenance technician install, adjust
and service this equipment. Follow the National Electrical Code
and all other applicable electrical and safety codes, including the
provisions of the Occupational Safety and Health Act (OSHA),
when installing equipment.
• Reduce the chance of an electrical fire, shock, or explosion by
proper grounding, over-current protection, thermal protection and
enclosure. Follow sound maintenance procedures.
• It is possible for a drive to run at full speed as a result of a
component failure. In order to stop the drive in an emergency,
please ensure that a master switch has been installed in the AC
line.
• This drive is not isolated from earth ground. Circuit potentials
are at 115 to 240 VAC above earth ground. Avoid direct contact
with the printed circuit board or with circuit elements to prevent
the risk of serious injury or fatality. Use a non-metallic screwdriver
for adjusting the calibration trimpots.