Control systems Positioners and controllers
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TI-P706-04 CTLS Issue 7
SP7-20, SP7-21 and SP7-22 Smart Positioner
Description The SP7-2* is an electronically configurable positioner with communication capabilities designed for mounting on pneumatic linear or rotary actuators. It features a small and compact design, a modular construction, and an excellent cost-performance ratio. Fully automatic determination of the control parameters and adaptation to the positioner allow for considerable time savings as well as optimum control behaviour. The positioner has a local communication interface (LCI) as standard in the SP7-20. Additionally, a ‘HART ® communication’ option for communication via the 20 mA signal is available. Both communications are based on the HART ® Protocol. Alternatively, HART ® 5 or HART ® 7 are available. Other available options are the SP7-21 with a PROFIBUS PA module or the SP7-22 with FOUNDATION Fieldbus module. In addition to its input for the analog position set point, the positioner is equipped with a digital input which can be used to activate control system functions in the device. A digital output allows you to output collective messages (alarms/faults).
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Throughout the document SP7-2* is written where the information is relevant to all versions; the SP7-20, SP7-21 and SP7-22. Where the information is specific it will be referenced as the version appropriate.
Air supply The SP7-2* positioner must be provided with a high quality air supply to ISO 8573-1:2010 Class 3:3:3 Approvals
ATEX rating IECEx rating
II 2 G Ex db IIC T4/T5/T6 Gb
NEPSI rating
Ex db IIC T4/T5/T6 Gb
Ex db IIC T4/T5/T6 Gb
CCC (China)
Ex db IIC T4/T5/T6 Gb
INMETRO rating
Ex db IIC T6 ....T4 Gb
TI-P706-04 CTLS Issue 7
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SP7-20, SP7-21 and SP7-22 Smart Positioner
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