Badger Meter SRD/SRI Valve Positioners - Manual (Page 17)

Adjusting and startup of the positioner, as well as the demand for internal information, can be made using the local keys 17
with indication given by LCD, 18 or LEDs
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 the 3 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 occurs again 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
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
With FF H1 and Profibus PA Communication
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; either with
• maintaining last value
• output pressureless, or
• with predetermined position
As soon as setpoint values arrive via communication again, the instrument is immediately back IN OPERATION
Out of Service
The SRD991 as delivered is configured to 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, it is recommended to 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 delivered condition (see
“Startup” )
Calibrate
During an AUTOSTART function the device is in condition CALIBRATION The actuator is moved up- and downward several
times, and the device could be busy for a few minutes Subsequently, the device moves to IN OPERATION
Operating Modes
Page 17 August 2014 POS-UM-00010-EN-03