Instruction Manual Supplement
D104299X012
DVC6200 SIS
October 2018
22
the digital valve controller is reset. The digital valve controller when configured to Smart Auto will behave like a
manual reset when a trip is initiated at the valve by the local control panel and like auto reset at all other times.
When the digital valve controller is waiting for a manual reset its state can be determined from the status
monitor by monitoring the Locked In Safety Position alert.
When Auxiliary Terminal Action is set to SIS Local Control Panel.
The reset signal depends on how the AUX terminals are configured. If configured for SIS Local Control Panel, the
digital valve controller can be reset by pressing the button next to the green light on the LCP100. If configured as
Push Button Partial Stroke, the digital valve controller can be reset by shorting the AUX terminals for more than 3
seconds but less than 10 seconds. The device cannot be reset from the AUX terminals if they are configured
otherwise.
D Action on Failed Test displays the action taken by the instrument if a communication timeout occurs. Values are
Ramp Back or Step Back.
SIS/ Partial Stroke Alerts
D PST Pass Alert, when enabled a PST pass alert is set in command 48 Byte 5 bit 7 on a successful PST and stays active
for a user configured period. The time is shared between the LCP Trip Alert time and can be refined by writing to the
Tripped by LCP Alert Latch in ValveLink.
D PST Prohibited Alert, when enabled a PST deferred alert is set in command 48 Byte 5 bit 6. The faults that contribute
to the PST Prohibited are user configurable and can be enabled in the PST Alert Behavior tab of ValveLink.
D SIS Program Flow Failure is active if the firmware is not performing the expected series of calculations.
D SIS Hardware Failure is active if a demand has occurred, but the electronics hardware failed to take control of the I/P
drive.
D Tripped by the LCP—The DVC6200 SIS is in the tripped position as a result of the trip button being pressed on the
local control panel. This alert will automatically clear only after the valve returns to the normal state.
D Tripped by LCP Alert Latch defines the duration for which the alert is active once the valve leaves the tripped end.
D Manual Reset Required Alert, when enabled will activate an alert when a manual reset is required. It can be
monitored in status monitor or using command 48 data byte 3 bit 3.
PST Alert Behavior
PST Prohibited is a user configurable list of hardware failures that will prohibit a PST from initiating.
D Flash Integrity Failure is active if there is a failure associated with flash ROM (read only memory). If this alert is
active, restart the instrument. If the alert persists, replace the printed wiring board assembly.
D Minor Loop Sensor Alert is active if the pneumatic relay position reading is outside the valid range. If the alert
persists, replace the printed wiring board.
D Reference Voltage Failure is active if there is a failure associated with the internal voltage reference. If this alert is
active, replace the printed wiring board assembly.
D Drive Current Failure is active when the drive current to the I/P converter is not flowing as expected. If this alert
occurs, check the connection between the I/P converter and the printed wiring board assembly. Try removing
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