User Manual

Needle Heater 12-13
Advanced Operation
To further define the heating process for your specific applications, you may want to
change the temperature controller’s Proportional Integral and Derivative (PID) values.
Only an advanced operator, process engineer or service technician should perform this
procedure. Also, please see the OEM temperature controller manual (if available)
accompanying your system before changing any values.
If you want to change the preset PID values, you need to access the CN76000 Secure menu
and change the password to allow access to the secondary menu.
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? NOTE You need the OEM temperature controller manual to complete the
following procedures. The manual also explains in detail the
choices you need to make.
To access the Secure menu:
1. Press I and
ENTER simultaneously for five seconds.
SECr will appear in the lower
SV display.
2. Using I, set the password to one that allows access to the secondary level.
3. See the Password Table in the OEM temperature controller manual.
4. Press
ENTER to record the new password.
5. Press I and
ENTER simultaneously, then INDEX and J.
The display will return to the primary menu.
To change PID values:
1. Press I and
ENTER simultaneously.
AUTO will appear in the lower
SV display.
2. Press
INDEX to cycle through the parameters on the secondary menu.
3. To change a parameter, use I and J and press
ENTER to record the value.
4. Press I and
ENTER simultaneously, then INDEX and J.
The display will return to the primary menu.