ES-699 Rev U
Page 15 of 17
Entity Parameters:
Vmax = 30 Vdc; Imax = 125 mA; Ci = 8 nF; Li = 1 uH
max = 900 mW.
10.5
SVI-II AP (+) and (-) PV 1-5VDC Terminals
The Process Transmitter and the SVI-II AP PV Input are both barrier
protected. The transmitter 4 to 20 mA signal is converted to 1 to 5
Volts at the Transmitter barrier. The 1 to 5 volt signal is monitored by
the DCS and used by the SVI-II AP for the embedded process
controller. The sense resistor may be in the barrier or in the Digital
Control System.
The Process Transmitter must be approved for use with the Process
Transmitter Barrier. An example of a suitable barrier is MTL 788 or
788R An example of the PV INPUT barrier is MTL 728.
Entity Parameters of the SVI-II AP PV terminals:
Vmax = 30 Vdc; Imax = 125 mA; Ci = 1 nF; Li = 0 uH;
Pmax = 900 mW
10.6
SVI-II AP (+) and (-) SW Terminals
There are two independent isolated solid state switch contact outputs
on the SVI-II AP. They are labeled SW#1 and SW#2. The switches
are polarity sensitive
–
that is, conventional current flows INTO the
plus terminal. An examples of suitable barriers are MTL 707, MTL
787 and MTL 787S. Entity parameters are:
Vmax = 30 Vdc Imax = 125 mA Ci = 5 nF Li = 10 uH
Pmax = 900 mW
10.7
SVI-II AP (1) and (2) and (3) REMOTE Terminals
The REMOTE terminals deliver reference Voltage to an optional
remote position sensing potentiometer. Current, Voltage, and Power
are limited by the SVI-II AP.
The REMOTE terminals entity parameters are the parameters of the 4
to 20 mA INPUT barrier.
The SVI-II REMOTE MOUNT is approved for use as a remote position
sensing device with the SVI-II AP.
SVI-II AP Entity parameters are:
Uo/Voc = 6.5 Volts Io/Isc = 9.6 mA Ca = 22 uF La = 300 mH
Connect only to suitable potentiometer
SVI-II REMOTE MOUNT Entity parameters/Energy Limitation
Parameters are:
Ui/Vmax=6.5Volts, Ii/Imax=10.5mA, Ci=0uF, Li=0, Pi=68mW
10.8
Digital In Terminals
The Digital In terminal is suitable for direct connection to a passive
switch.
Entity Parameters are:
Uo/Voc = 6.5 Volts Io/Isc = 72 mA Ca = 1.25 uF La = 2 mH
Connect only to passive (Un-powered) switch.
87
Specifications and
Hazardous Location Installation
Summary of Contents for SVI II AP-2
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