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??? 09/19/10 12:22 Read: times	#178589 - do you have hysteresis in your control? Responding to: ???'s previous message
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List of 41 messages in thread

Topic	Author	Date
What is the reason for Heater blowing.		01/01/70 00:00
Hof often/how we?		01/01/70 00:00
Some more information...		01/01/70 00:00
continuous rating		01/01/70 00:00
This could be the reason...		01/01/70 00:00
Way too much current...		01/01/70 00:00
Some more information required...		01/01/70 00:00
do you have hysteresis in your control?		01/01/70 00:00
No there is no hysteresis.		01/01/70 00:00
Four pulses?		01/01/70 00:00
The Heaters are failing, electronics is OK.		01/01/70 00:00
Why Pulses?		01/01/70 00:00
I will do just that...		01/01/70 00:00
Processor must know about zero-crossings		01/01/70 00:00
??		01/01/70 00:00
soft start		01/01/70 00:00
Soft Start		01/01/70 00:00
an easy and interesting check		01/01/70 00:00
Soft start, again...		01/01/70 00:00
Yes these heaters need Soft start		01/01/70 00:00
Again: Power? Voltage? Current?		01/01/70 00:00
Avoid driving gate all the way to next zero crossing		01/01/70 00:00
Crest factor/power factor correction		01/01/70 00:00
Phase angle control...		01/01/70 00:00
I agree with you.		01/01/70 00:00
Good luck!		01/01/70 00:00
are all heating coils the same ?		01/01/70 00:00
There You Go		01/01/70 00:00
re the possible need for hysteresis		01/01/70 00:00
Power? Voltage? Current?		01/01/70 00:00
Alternate Heating Control Algorithm		01/01/70 00:00
Some more clarification...		01/01/70 00:00
Voltage - or power? [ed]		01/01/70 00:00
The other controllers		01/01/70 00:00
Thanks All members.		01/01/70 00:00
just suggest..		01/01/70 00:00
Reply to JecksonS Ben		01/01/70 00:00
Good point!		01/01/70 00:00
supposed to		01/01/70 00:00
opto isolated triac		01/01/70 00:00
My solution		01/01/70 00:00

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