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DID-UM-002
Val Controls A/S
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Limfjordsvej 3
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DK-6715 Esbjerg N
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Tel. +45 7547 0600
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www.valcontrols.com
Revision: 10
30/74
8
Test errors
8.1
Partial stroke errors (401 to 419)
No. 401
PST start condition: Not at operational
Description
The valve is not at the operational position
The valve must be at the operational position to perform a partial stroke. All
measured times and pressures depends on that the valve is at the end position.
Trouble shooting
This error can be solved by
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Make sure the valve is at the operational position
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Perform an endpoint calibration.
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Increase the partial stroke position deadband
No. 402
PST start condition: Low start pressure
Description
The measured pressure is below Start pressure low
Trouble shooting
This error can be solved by:
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Increase the pressure in the hydraulic/pneumatic system
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Decrease Start pressure low
No. 403
PST start condition: High start pressure
Description
The measured pressure is above Start pressure high
Trouble shooting
This error can be solved by:
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Decrease the pressure in the hydraulic/pneumatic system
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Increase Start pressure high
No. 404
PST start condition: In ESD mode
Description
Emergency shutdown is detected
Trouble shooting
This error can be solved by:
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Activate the ESD input