1-4
100-214-276 Rev. 3
Chapter 1: Safety and Support
General Precautions
1.2 General Precautions
Take the following precautions before servicing the power supply:
• Be sure the power switch is in the Off position before making any electrical connections.
• To prevent the possibility of an electrical shock, always plug the power supply into a
grounded power source.
• Power supplies produce high voltage. Before working on the power supply module, do the
following:
•
Turn off the power supply;
•
Unplug main power; and
•
Allow at least 2 minutes for capacitors to discharge.
• Before working on the actuator, or opening the door, do the following:
•
Disconnect the power supply signal cable, and
•
Engage the E-Stop
• High voltage is present in the power supply. Do not operate with the cover removed.
• High line voltages exist in the ultrasonic power supply module. Common points are tied to
circuit reference, not chassis ground. Therefore, use only non-grounded, battery-powered
multimeters when testing these modules. Using other types of test equipment can present a
shock hazard.
• Be sure power is disconnected from the power supply before setting a DIP switch.
• Keep hands from under the horn. Down force (pressure) and ultrasonic vibrations can cause
injury.
• Do not cycle the welding system if either the RF cable or converter is disconnected.
• When using larger horns, avoid situations where fingers could be pinched between the horn
and the fixture.
• Be aware that the actuator is "armed" if air pressure is indicated on the front panel air
pressure gauge.
NOTICE
Sound level and frequency of the noise emitted during the ultrasonic assembly
process may depend upon a. type of application, b. size, shape and composition
of the material being assembled, c. shape and material of the holding fixture, d.
welder setup parameters and e. tool design. Some parts vibrate at an audible fre-
quency during the process. Some or all of these factors may result in an uncom-
fortable noise being emitted during the process. In such cases operators may
need to be provided with personal protective equipment. See 29 CFR (Code of
Federal Regulations) 1910.95 Occupational Noise Exposure. Refer to the follow-
ing Table: Manufacturers of Protective Materials and Equipment.
DOC EXPIRES 12PM 7/24/2012. Article or Material must comply with the requirements
stipulated by RoHS in its current version
