Appendix a – quench control & events – Super Systems PC Configurator 2 User Manual

Page 175

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Super Systems Inc.

Page 175 of 201

Configurator Manual #4562 Rev D

Appendix A – Quench Control & Events

The quench opcode starts a timer that is independent of any program running. Therefore,
another program can be started while the quench is timing. When a load is transferred to
quench manually by an operator, the program will have an end of cycle alarm that will alert the
operator to transfer the load. When the operator acknowledges the alarm, the next step in the
program will be the quench opcode. For automatic (PLC) applications, an end of cycle event
output would be followed by an event input, which could be the inner door or other contact
indicating the load was transferred. The next step is the quench opcode. The end of quench
event is a one-second momentary output. Two or three events are used by the quench
opcode. Quench speed hi/lo, which is specified in the option, and end of quench - the one-
second pulse at the end of quench time - are always used. A quench run event that is active
while the quench timer is running can be assigned.
If the 9200 is also used for the quench temperature controller, the PVT type must be set to %C
dual temperature. This uses input 1 for probe millivolts, input 2 for furnace temperature (also
used for %C calculation), and input 3 for the quench temperature. Loop 1 is %C, loop 2 is
furnace temperature, and loop 3 is quench temperature. The programmer would then have
loop 3 assigned as the quench instrument

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