Masoneilan SVI II AP Installation and Maintenance ... - GE Energy
Masoneilan SVI II AP Installation and Maintenance ... - GE Energy
Masoneilan SVI II AP Installation and Maintenance ... - GE Energy
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<strong>GE</strong> Oil <strong>and</strong> Gas<br />
<strong>SVI</strong> <strong>II</strong> <strong>AP</strong> Instruction Manual<br />
Table 19<br />
Operational Specifications*<br />
Accuracy<br />
Hysteresis <strong>and</strong> Deadb<strong>and</strong><br />
Repeatability<br />
Conformity<br />
Start-Up Drift<br />
Long Term Drift<br />
+/- 0.5% (typical +/-0. 10% or less) Full Span<br />
+/- 0.3% Full Span<br />
+/- 0.3% Full Span<br />
+/- 0.5% Full Span<br />
Less than 0.02% in first hour<br />
Less than 0.003% per month<br />
Position Travel Limits Rotary: 18 - 140°<br />
Reciprocating: 0.25” - 2.5“ (6 mm - 64 mm)<br />
Note: Above 2.5” (64 mm) consult factory for mounting<br />
instructions.<br />
Flow Characteristics<br />
Applied in addition to the control valve’s inherent<br />
characteristic.<br />
Position Auto Tune<br />
<strong>SVI</strong> <strong>II</strong> <strong>AP</strong> performs automatic determination of the<br />
optimal valve position control parameters. In<br />
addition to P, I, D, the position algorithm uses<br />
damping, symmetry for exhaust <strong>and</strong> fill time<br />
constants, dead zone <strong>and</strong> magnitude<br />
characterization parameters. Auto Tune is<br />
optimized for 5% step changes with negligible<br />
overshoot. After the Auto Tune process is<br />
completed, you can further adjust the positioner<br />
tuning parameters to more conservative or to more<br />
responsive values.<br />
Full open position adjustment<br />
Start Up Time (from no power)<br />
Minimum current to maintain HART<br />
Linear<br />
Equal Percentage (of 50:1 or 30:1)<br />
Camflex<br />
Quick Opening (inverse of 50:1 equal percentage)<br />
User Configurable<br />
Tight Shut Off (0 -20% of input)<br />
Proportional gain: 0 to 5, displayed as 0 to 5000<br />
Integral time: 0 to 100 seconds - displayed as 0 to 1000 (1/<br />
10s)<br />
Derivative time: 0 to 200 milliseconds<br />
Dead Zone: 0 to +/-5% (0 to 10% deadb<strong>and</strong>)<br />
Padj: +/- 3000 (depends on P)<br />
Beta (non-linear gain factor): -9 to +9<br />
Stroking Time: 0 to 250 seconds<br />
Position compensation coefficient: 1 to 20<br />
Boost: 0 to 20<br />
60 to 100% of actual stop<br />
Less than 200 ms<br />
3.0 mA<br />
HART Comm<strong>and</strong> #3 Mapping PV = Valve Position, 0-100%<br />
SV = Actuator Pressure (P1-P2)<br />
TV = Supply Pressure<br />
QV = P2 for double acting units<br />
HART 6 Comm<strong>and</strong>s<br />
Cmd 9 - Reads device vars w/status.<br />
Cmd 33 - Reads device variables.<br />
* Specifications are subject to change without notice<br />
148
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