SVI-II Instruc Man.book - Fagerberg

Operation and Maintenance
Physical and Operational Description
Switch Settings
The two digital output switches can be opened or closed in response to
conditions that the SVI II AP detects. These conditions are:
0. Always Normal Position - the switch is not controlled by
the SVI II AP and remains in it’s default position
1. Failsafe - the switch is activated when the SVI II AP is in
failsafe mode
2. Reset - the switch is activated whenever a reset has
occurred and the switch remains activated until the SVI II AP
status is cleared
3. Position Error - the switch is activated whenever a position
error has occurred and is deactivated when the position
recovers to the correct position
4. Tight Shutoff Active - the switch is activated whenever the
device is in tight shutoff (tight shutoff is on and the valve
position is less than the tight shutoff position )
5. Position Low Limit - the switch is activated whenever the
valve position is less than the position setting of this switch
control
6. Position Upper Limit - the switch is activated whenever the
valve position is greater than the position setting of this
switch control
7. Manual Mode - the switch is activated whenever the SVI II
AP is in manual mode, configure mode, calibrate mode, or
diagnostic mode.
Note:
The contacts are OPEN when the SVI II AP is unpowered and may be
made to be open or closed when the flag is asserted after boot.
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