Block Modes; Resource Block Modes; Transducer Block Modes - GE Baker Hughes Masoneilan SVI FF Installation And Operation Manual

Block Modes

Resource Block Modes

Resource block has two major modes:
OOS – The block configuration parameters can be changed.
WARNING
AUTO – This is normal operational mode.
BLOCK_ERROR_DESCR_1 provides additional details if the target mode is AUTO and the actual
mode cannot be switched to AUTO (stays in OOS).

Transducer Block Modes

You can request the block to switch to one of the following block modes by writing
MODE_BLK.TARGET parameter:
OOS – The device de-energizes the valve. This mode also may be necessary for setting
SETPOINT SOURCE, ACTUATOR_3.ACT_FAIL_ACTION and CHAR_SELECTION.TYPE, that
can trigger a large movement of the valve if the valve is not de-energized.
MAN – You are in control of the valve position. You can use this mode for most of the
configuration, maintenance and diagnostic procedures. If the
SETPOINT_SOURCE=AO-Final Value, you can move the valve by writing a value to
FINAL_VALUE parameter.
AUTO – The valve is under FF blocks control. Depending on the configuration of the
SETPOINT_SOURCE, the SETPOINT is set from FINAL_VALUE, FINAL_VALUE_D or
FINAL_VALUE_DINT.
Depending on the Transducer block configuration, valve position control and valve condition,
the transducer block (MODE_BLK.ACTUAL) may be in one of the following states:
OOS – This is an indication that the valve is in de-energized position. The valve cannot
be moved until the block is in this mode. The TB goes to OOS mode if one of the
following condition exists:
20 |
BHGE
ALL blocks are switched to OOS mode when the Resource block is
switched to OOS mode.
When the TB is in OOS mode, the valve moves to its de-energized
position.
The Transducer block MODE_BLOCK.TARGET = OOS mode. You must change the
Transducer block target mode to make the device operational.
The Resource block MODE_BLOCK.TARGET = OOS mode
The device has detected an abnormal condition, that does not allow it to operate.
You must review the value of parameter 87.COMPLETE_STATUS for more
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