Electro-Pneumatic Positioner SP 520 Series
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Ver 1.20
40
SHIN HWA Eng.Co.,Ltd.
5-8 Terminal Connection for Intrinsic Safety Proof type (Feedback
option)
- The circuit of the intrinsically safe device must be separated from the general circuit.
- Keep the current parameter below the specified value indicated on the explosion-proof
certification.
- Conduct appropriate grounding for the installation site, and maintain the ground resistance
of the product and barrier with an equal potential.
- Unscrew the set screw of the terminal box, open the terminal box cover, and connect it to
the (+), (-) position of the terminal block in the terminal box according to the external input
line (+) and (-).
- Connect the FEEDBACK SIGNAL line to (+), (-).
- Connect the ground wire to the ground wire.
- Close the terminal box cover and tighten the set screw again to fix the terminal cover.
Fig 5-7 : Terminal Connection for Intrinsic Safety Proof type (Feedback option)
5-9
Position transmitter calibration for Intrinsic Safety (Feedback Option)
5-9-1 Mode Setting
Modify Mode according to the DIP Switch of TERMINAL BOX inside PCB Board.
①
2 POINT setting : DIP SWITCH location is 1,0 and both valve starting point (0%) and end
point (100 %) shall be calibrated and remaining middle point will be set automatically .
②
5 POINT setting : DIP SWITCH location is 0,1 and valve starting point (0%), 25%, 50%, 75%,
End point (100%), total 5 POINT shall be calibrated.
