PS Automation PS-AMS PSQ Series, Руководство по эксплуатации

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10. Operation
All internal parameters, like required motor torque, actual position, functional status, etc., are being permanently
monitored during operation of the actuator PS-AMS. This ensures that the actuator positions with optimum
accuracy, and closes the valve always tight. Deviations can be read out via communication software PSCS or via local
control PSC.2 (see respective instruction manuals), or can be displayed to the control room using the optional fault
indication relay. This provides maximum safety of the process.
Cut-offs of the PS-AMS actuators can be adjusted to meet the valve function in an optimum way by using the
communication software PSCS (using a special interface cable, or optionally Bluetooth connection). This will result in
different behaviour of the actuator. In case a position is surpassed or not reached, this can be read out via the
optional Fault Indication Relay or via the communication software PSCS.
10.1 Cut-off by Force / Torque
The actuator delivers the programmed maximum force / torque each time when driving to this end position. If the
closing point inside the valve dislocates, e.g. when a seat gasket wears, then the actuator will drive further in its
possible actuation range to try to reach the programmed force / torque.
10.2 Cut-Off by Position automatically
In normal operation, the actuator will stop at the position which was found at a mechanical stop in the valve or the
actuator during Automatic Commissioning. If the closing point inside the valve dislocates, the actuator will NOT
follow this dislocation but it will always stop at the point initially found.
10.3 Cut-Off by Position
In normal operation, the actuator will stop at the point which was defined by Manual Commissioning. This position is
not depending on any mechanical stop inside valve or actuator.
11. Commissioning
The actuator is shipped in the „not commissioned“ condition with the green LED flashing slowly. There will be no
response to any input (set value or open/close signal). To make the actuator operational, it has to be commissioned
to a valve.
Depending on the type of cut-offs programmed (see 10.1), there are two ways to do commissioning:
- Automatic commissioning is done if at least one of the cut-offs is set to be “by force/torque” or “by position
automatically”.
- Manual commissioning has to be made in case both cut-offs are “by position”, either via software PSCS or via
control box PSC.2.
11.1 Automatic Commissioning
This is performed if at least one of the cut-offs is set to be “by force/torque” or “by position automatically”.
Caution!
Electrical operation of the actuator is allowed only after mounting to a
valve!
To avoid injuries due to live or rotating components, commissioning is
allowed only while the main cover of the actuator is closed.
Attention! Observe precautions for handling. Electrostatic sensitive
devices.