Baker Hughes Masoneilan SVI II ESD Quick Start Manual page 60

Normal Operation
In Normal mode, the SVI II ESD responds to the input signal and positions the ESD valve 
accordingly.
In configurations where the safety function is triggered by current, when the input signal current
falls below 5.6 mA, the SVI II ESD de-energizes the ESD valve. In the same configuration, when
the input signal current rises above 14 mA, the SVI II ESD energizes the ESD valve.
In configurations where the safety function is triggered by a discrete 0 - 24 VDC signal, when the
input signal voltage falls below 3 V, the SVI II ESD de-energizes the ESD valve. In the same con-
figuration, when the input signal voltage rises above 18 V, the SVI II ESD energizes the ESD valve.
Manual Operation
In Manual mode, the valve does not respond to the input signal. Instead it remains stable in the
position that the valve was in when manual mode was entered or a new position selected by us-
®
ing HART or pushbutton interface. However, the Shutdown function is activated if the signal is
less than 5.6 mA (ASD and A/DSD) or 3 VDC (A/DSD and DSD).
Setup
In the Setup mode, you can set calibration and configuration parameters. Additionally, you can
run response time tests, step response tests, and valve signatures.
© 2018 Baker Hughes, a GE company, LLC. All rights reserved.
60 | =BHGE