Tidal Engineering Synergy Series Technical Manual page 223

16.2.3.5 Logging
In Cascade mode, you can log the Product Setpoints and Actual values, the Air Temperature Setpoint and
Actual values, and the Cascade PID values. When you are in cascade mode, logging the Channel 1 Actual
and Channel 1 Setpoint values will log the product readings. To log actual air temperature, open the Setup
screen and go to the Logging\Data\Cascade folder. Enable logging for CH1 Actual and CH1 Setpoint.
Cascade PID CH1 in that folder is the Cascade loop PID value.
16.2.3.6 Chamber Operation
All Synergy Controller features are available with Cascade mode enabled. Test programs are unaffected
except in cascade mode, the temperatures setpoint is the product setpoint as opposed to the air temperature
setpoint. Steady-state setpoints also work with Cascade enabled.
16.2.3.7 Safety
WARNING:
Careful consideration should be paid to the Cascade Control setup since the air temperature will
go the limits if the product sensor isn't connected properly. A secondary limit controller set
appropriately should always be used to prevent damage to the chamber or to the unit-under-test
in the event of controller or primary sensor failure. Cascade High Limit should be always be set
the maximum allowable air temperature.
Synergy Controller Technical Manual, Revision H Page 223