Input signal4–20 mA DC (two-wire), split range configurable
Positioning4–20 mA corresponds to 0–100% valve position (direct/reverse)
CommunicationHART available
SIPART PS2 positioners control the valve position according to setpoint value specification on pneumatic valves. The valve can be verified with various intelligent online (during operation) and offline (e.g. between batch processes) diagnostic functions. Diagnostic functions can be optionally expanded by pressure sensors.
Easy installation
Automatic commissioning
Simple operation and on-device configuration with local display or via SIMATIC PDM
Very high control performance
Minimal air consumption in stationary operation
"Close tight" function for maximum torque on the process valve seat
"Fast Open/Fast Close" function for defined approach of the end position and fast reaction from the end positions
"Fail Safe" function: Secure depressurization SIL 2 in case of failure of electrical auxiliary power
"Fail in Place" function: Maintain current position on failure of electrical and/or pneumatic auxiliary power
"Fail to Open" function: Pressurizing of the actuator in case of failure of electrical auxiliary power
Numerous functions can be activated by simple configuring (e.g. characteristic curves and limits)
One device variant for all applications: Linear actuators, part-turn actuators and cylinders
Optional with internal or external contactless position feedback for external ambient conditions
"Intelligent solenoid valve": Solenoid valve function and diagnostics in one device
Extensive diagnostic functions:
Full Stroke Test
Multi Step Response Test
Valve Performance Test
Valve Signature, pressure sensor-aided
Partial Stroke Test, optionally pressure sensor-supported for performance and maintenance assessment of the valve
Leakage monitoring
Can be operated with natural gas, carbon dioxide, nitrogen or noble gases
