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Position Measuring System
Autotune 6:
PMO double seat valves with liftable lower valve disc
Autotune 6 is identical to Autotune 3, but with feedback fields for S1 changed in comparison to the factory set-
tings (see Chapter "6.8" on page 26): S1 ± 1.0 mm.
The feedback fields are already switched during the Autotune process. However, if the Autotune-6 process is
aborted (e.g. power failure) or is not successful, the feedback fields set previously are accepted again.
After a successful Autotune 6, the (magnetic) manual control function is deactivated.
These settings made by Autotune 6 can be changed if required as follows:
• The magnetic manual control function can be re-activated using PC software or via DeviceNet only.
• The feedback fields changed by the Autotune function 6 can be changed to the original or another value using
PC software or DeviceNet or by Feedback Field Mode (see Chapter "16.3" on page 83).
• A Device Reset will also reset all settings made by the Autotune function 6 (comp. Chapter "6.9. Resetting the
device (Device Reset)" on page 28).
Control Effect on the process valve Internal program Error
T2 + T3 Autotune mode starts
T2+T3 Autotune 6 starts
Closed position Teach T1
Valve opening Activate V1
Wait period 10s
Open position Teach T2
Valve closing Deactivate V1
Valve closes Wait on position S1 S1 Timeout 15s
Open lower lift function Activate V2
Wait period 10s
Lower lift function Teach T3
Valve closing Deactivate V2
Valve closes Wait on position S1 S1 Timeout 15s
Autotune mode
completed
- feedback fields for S1: ± 1.0 mm;
- feedback fields for S2 and S3: Resetting
S2 and S3 to factory settings (S2: ± 3.0 mm;
S3: ± 1.0 mm - see FFM3 Chap. "16.3")
- magnetic manual control: deactivated
In the event that a timeout occurs, the corresponding Autotune function will be exited and switched to
normal operation.
Furthermore, the Teach positions are set to "not taught", i.e. they flash in the fault color.
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