Installation and Operating manual
Econ
®
Series 3300 Smart Valve Positioner www.eriks.com www.eriks.com
17
Positioner should be grounded.
Please use twisted cable with conductor section min. 1.25mm
2
and suitable for 600V
(complying to the conductor table of NEC Article 310.) The outer diameter of the cable
should be between 6.35 ~ 8 mm. Use shield wire to protect against electro-magnetic
field and noise.
Please do not install the cable near high noise equipments, such as an high-capacity
transformer or motor.
4.5.2 Terminal
Overview
Positioner Terminal
IN +: Input Signal (+)
IN -: Input Signal (-)
FG: Ground
OUT+: Feedback Signal (+) (if mounted)
OUT-: Feedback Signal (-) (if mounted)
4.5.3 Ground
1. Ground connection must be done before operating the positioner.
2. Open terminal cover and locate ground terminal plate on the right hand bottom side of
the terminal plate. The outer cable entry is located at outside of the terminal. Please
make sure that the resistance is less than 100 Ohm.
3. When using external ground, use (+) screw driver to unscrew the ground bolts. Insert
outside ground bolts and spring washer into ring type terminal of the ground cables and
tighten them with bolts.
4. When using internal ground, use 3mm wrench to loosen locking bolts of the terminal box
cover.
To Next Page
Loading...