v 1.4 — September 2015 Altanium Neo2
50 Changing the Power Output Control Method Setting
For more information on the Neo2’s advanced earth leakage system see Section 10.2.
7.3.10 Changing the Power Output Control Method Setting
In hot runner process control systems there are two schools of thought in regards to how the
power output should be switched to the heaters. The choices are Zero Cross Control or Phase
Angle Control. Each method has its own set of pros and cons, but in all practicality they offer
very similar results. Only you can decide which method is right for your application.
Neo2 has the flexibility to run each individual zone in either mode, Zero Cross Control or
Phase Angle Control. The default setting is Z/C (zero cross) for all zones.
NOTE:Neo2 must be in Advanced mode to change this setting. Refer to Section 4.2.1.
To change a zone’s output control:
1. On the Quick Set screen, touch the zone to change.
To select more than one zone, touch the additional zones and they will be selected.
2. Using the Parameter Scroll buttons, scroll to OUTPUT CONTROL.
3. Touch OUTPUT CONTROL and the selected zones toggle from Z/C (Zero Cross) to P/A
(Phase Angle).
4. Touch OK.
7.3.11 PID Control
Neo2 gives the operator the choice of using ART (automatic tuning), or a PID program
(manual tuning). The default setting is ART on all zones.
7.3.11.1 Typical PID Values
The following is a list of some typical PID values.
Table 7-1 Typical List of PID Values
P I D Type Example
015 010 002 Fast Probes or heaters with internally located
thermocouples
050 020 000 Fast
020 010 000 Fast
015 015 000 Fast
020 007 100 Medium Probes or heaters with internally located
thermocouples (larger mass)
020 005 200 Medium
100 003 000 Slow Manifolds or heaters with externally located
thermocouples
075 003 150 Slow