Svi Ii Ap Setups - GE SVI II AP-2 Quick Start Manual

GE Oil & Gas
7. Cabling must be shielded to prevent electrical noise that would interfere with
the HART tones, with the shield grounded.
8. Signal must be properly grounded in only one place.
NOTE

SVI II AP Setups

Typical system setups are shown in Figure 23 on page 44, General Purpose and
Explosion Proof (EEx d) Installation Schematic and Figure 24 on page 44,
Intrinsically Safe Installation Schematic. The SVI II AP digital valve positioner can
be located in a general-purpose or hazardous area protected by Explosion Proof
(EEx d) methods. Wiring diagrams are generalized, actual wiring must adhere to
Electrical Installation section of manual and local electrical codes. The use of a
Handheld Communicator or a HART modem is not permitted in the Hazardous
Area protected by Explosion Proof (EEx d) methods. In Figure 24 on page 44 the
SVI II AP digital valve positioner is located in a hazardous area that is protected
by Intrinsically Safe wiring practices.
The SVI II AP requires an electrical input from a 4-20 mA current source. The SVI
II AP input signal can carry a HART communication protocol signal from ValVue
software and a HART modem, or from a HART Hand Held Communicator. Since
the process control system, the source of the input signal, is located in a non-
hazardous location, setup requires an intrinsic safety barrier be placed between
the process control system and the SVI II AP. If the SVI II AP is located in a
hazardous area with Intrinsically Safe protection a barrier is not required for a
flameproof installation. Alternatively the system can be installed as Explosion
Proof ⁄ flameproof. SVI II AP can communicate with a remote PC running ValVue
software via a modem connected to the PC's serial or USB port. The PC, which is
not intrinsically safe, must be connected to the circuit on the safe area side of the
intrinsic safety barrier if the valve is located in a hazardous area.
The SVI II AP can be operated, calibrated, configured, and interrogated either by
using local pushbutton and display, or by using a PC running ValVue software,
HART Handheld Communicator, or any registered HART Host that supports DDs.
The HART Handheld Communicator is approved for Intrinsically Safe use in
accordance with FM and ATEX standards. Read and observe all handheld
labeling. The SVI II AP is polarity sensitive so the positive lead must be connected
to the positive (+) terminal and the negative lead to the negative (-) terminal.
Reversing the input will not cause damage but the unit will not function.
For details and calculation methods for wiring resistance, and
capacitance and for calculation of cable characteristics, refer
to the HART FSK Physical Layer Specification.
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ValVue SVI II AP Quick Start