Troubleshooting
ZF2/ZF3 SCR Power Controller
24
Ametek HDR Power Systems
Rev 3
e. If possible, perform printed circuit board maintenance at a work station that has a conductive
covering which is grounded through a 1-megohm resistor. If a conductive table top is unavailable,
a clean steel or aluminum table top is an excellent substitute.
f. Keep plastic, vinyl, Styrofoam or other non-conductive materials away from printed circuit boards.
They are good static generators that do not give up their charge easily.
g. Return goods to Ametek HDR Power Systems in static-safe packaging. This will limit further
component damage from ESD.
h. CAUTION. Do not touch any printed circuit board unless you are wearing a ground wrist strap, as
circuit damage may occur. Grounding kits are also available commercially and can be purchased
through most electronic wholesalers.
7.4
Environmental Problems
Check to see that none of the following environmental problems exist.
Inadequate Cooling.
For 350 A and larger models, allow at least 3 inches of air space (in any
direction) between the heat sinks and any item or structure near the ZF2/ZF3 power modules. Heat
sink fins should be free of dust or dirt for proper heat transfer, and free of obstructions which could
prevent proper airflow.
Contamination.
The unit should be periodically cleaned of all dust and dirt. However, certain kinds of
dust or particles are particularly conductive. A small accumulation of conductive material can cause
component failures from arc-over or complete shorts.
High Ambient Temperature.
Lack of a proper ambient-temperature check before installation, or an
increase in ambient temperature, can result in numerous problems. Check the ambient temperature
under existing conditions. If it is 122 ºF (50 ºC) or lower, ambient temperature should not be a
problem. If it is above 122 ºF (50 ºC), steps should be taken to provide more cooling, or the ZF2/ZF3
should be moved to a cooler location, or call the Ametek HDR Power Systems
service department.
Excessive Vibration.
A significant degree of pitched or unpitched vibration can cause numerous
problems. If vibration is isolated as a probable cause of improper operation, standard vibration-
isolation mounting techniques should be employed.
7.5
Input Power and Load Connections
Turn off the power to the ZF2/3 and check all power connections, input and output, to make sure they
are mechanically secure and free of corrosion. Make the same checks at the power source and load.
Visually check insulation on input and load wiring for evidence of damage or overheating.
Содержание ZF2 SCR Series
Страница 6: ...Table of Contents ZF2 ZF3 SCR Power Controller iv Ametek HDR Power Systems Rev 3...
Страница 8: ...Safety Instructions ZF2 ZF3 SCR Power Controller 2 Ametek HDR Power Systems Rev 3...
Страница 23: ...ZF2 ZF3 SCR Power Controller Operation Rev 3 Ametek HDR Power Systems 17 Figure 4 9 Unbalance Block Diagram...
Страница 24: ...Operation ZF2 ZF3 SCR Power Controller 18 Ametek HDR Power Systems Rev 3...
Страница 32: ...Troubleshooting ZF2 ZF3 SCR Power Controller 26 Ametek HDR Power Systems Rev 3...
Страница 42: ...Appendix ZF2 ZF3 SCR Power Controller 36 Ametek HDR Power Systems Rev 3 Appendix C ZF2 60 225 A Outline R...
Страница 43: ...ZF2 ZF3 SCR Power Controller Appendix Rev 3 Ametek HDR Power Systems 37 Appendix D ZF2 350 500 A Outline R...
Страница 44: ...Appendix ZF2 ZF3 SCR Power Controller 38 Ametek HDR Power Systems Rev 3 Appendix E ZF2 650 A Outline R...
Страница 45: ...ZF2 ZF3 SCR Power Controller Appendix Rev 3 Ametek HDR Power Systems 39 Appendix F ZF2 800 1200 A Outline R...
Страница 46: ...Appendix ZF2 ZF3 SCR Power Controller 40 Ametek HDR Power Systems Rev 3 Appendix G ZF3 60 225 A Outline R...
Страница 47: ...ZF2 ZF3 SCR Power Controller Appendix Rev 3 Ametek HDR Power Systems 41 Appendix H ZF3 350 500 A Outline R...
Страница 48: ...Appendix ZF2 ZF3 SCR Power Controller 42 Ametek HDR Power Systems Rev 3 Appendix I ZF3 650 A Outline...
Страница 49: ...ZF2 ZF3 SCR Power Controller Appendix Rev 3 Ametek HDR Power Systems 43 Appendix J ZF3 800 1200 A Outline R...
Страница 51: ...Notes...
Страница 52: ...503 Lakeview Plaza Blvd Ste C Worthington Ohio 43085 USA...
