Burkert Type 8681 - Manual (Page 71)

71
Position Measuring System
autotune 4:
control effect on the process valve internal program error
t2 + t3 autotune mode starts
t1 + t2 Autotune 4 starts
Valve closing Activate V2
Wait period 10s
Closed position Teach T1
Valve opens Deactivate V2
Activate V1
Wait period 10s
Open position Teach T2
Valve closing Deactivate V1
Activate V2
Valve closes Wait on position S1 S1 Timeout 15s
Neutral position Deactivate V2
autotune mode completed
autotune 5:
control effect on the process valve internal program error
t2 + t3 autotune mode starts
t1 + t3 Autotune 5 starts
Closed position Teach T1
Valve opens Activate V1
Wait period 10s
Open position Teach T2
Valve closing Deactivate V1
Valve closes Wait on position S1 S1 Timeout 15s
Intermediate position opens Activate V2
Wait period 10s
Intermediate position Teach T3
Valve closing Deactivate V2
Valve closes Wait on position S1 S1 Timeout 15s
autotune mode completed
autotune 6:
Reserved function
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Control Head Type 8681