Badger Meter SRD/SRI Valve Positioners - Manual (Page 14)

OPERATING MODES
Operation of the positioner is divided into individual
operating modes Operating modes may change depending
on, for example, key commands or internal calculations
The different operating modes are described in abbreviated
form below
Initialize
Upon powerup or reset (pressing keys () (–) (+)
simultaneously), several self-tests are conducted Individual
steps in the self-test process are indicated by the LCD or
green LEDs
If no error occurs, the device moves to OUT OF SERVICE, if it is
still in a delivery condition; AUTOSTART has to be performed
If AUTOSTART was done already, the device will go to
IN OPERATION
If faults are detected, the code of the faulty self-test will
remain If error reoccurs after reset, the device is probably
defective and should be sent in for repair
Device Fault
In the event that the LCD shows a message (or red LED lights
up constantly and all green LEDs are off), a device fault is
signaled These faults are detected during cyclical self-test
The device can no longer be operated This could be caused
by a jammed menu key or defective program memory See
"Troubleshooting Guide" on page 60
This condition disappears through new resetting until
the same error is detected again If a device error occurs
repeatedly, the device should be sent in for repair
In Operation
After performing an AUTOSTART, the device moves to
IN OPERATION and will always, even after restarting or
resetting, move back to the safety position (de-energized
valve position) or FAILSAFE If setpoint values are fed via
communication, the SRD will go to IN OPERATION
Failsafe
Positioner carries out actions as configured in menu Failure
Handling Additionally, the cyclical self-diagnosis takes place
If the instrument is IN OPERATION, but no setpoint values
arrive via communication, the SRD will go to FAILSAFE mode,
after a defined time period; with
• Maintaining last value
• Output pressureless, or
• Predetermined position
As soon as setpoint values arrive via communication again,
the instrument is immediately back IN OPERATION
Out of Service
The SRD960 in its delivery condition is configured in such
a way that it will remain OUT OF SERVICE after powerup
until moving to IN OPERATION via the manually initiated
function AUTOSTART
In the device state OUT OF SERVICE, the menu entering mode
remains active at all times If a device has been IN OPERATION
already and is removed from an actuator and mounted to
another, take the device out of operation via RESET CONFIG
(Menu 9 1) prior to disconnecting the device from the
first actuator
This enables the next actuator to be started in the delivery
condition (see "Startup" on page 32 )
Calibrate
During an AUTOSTART function the device state is in
CALIBRATION The actuator is moved up and down several
times, and the device could be busy for a longer period of
time Subsequently, the device moves to IN OPERATION
Message
The SRD960 continuously supervises its important device
functions In the event that limit values are exceeded or
operational problems occur, messages are signaled via the
LCD or the special LED blinking mode: red LED with long,
green LEDs with short fluorescent time
The message with the highest priority will be indicated
first With the minus key (–), additional messages can be
called up; with plus key (+), the measuring values can be
retrieved You can access the menu at any time buy pressing
the menu keys Further references may be found in chapter
"Troubleshooting Guide" on page 60
Simulate (FOUNDATION Fieldbus Version Only)
When IN OPERATION, the valve position queried via the
communication can be simulated with a value that has been
entered via communication into the instrument during
SIMULATION Thereby, the positioner continues with normal
operation and regulates to the ”accurate” set value
For the SRD , this function has to be additionally released or
blocked via menu 10
LCD description, definition of the LEDs and possible operator
interventions are described in "Startup" on page 32
Page 14
Operating Modes
August 2014 POS-UM-00009-EN-02