5 System monitoring
22 Positioner DC 6-06
5 System monitoring
5.1 Operation mode
When the control unit has started (booting routine) it automatically assumes that the
system is stopped. 3830 Phase indicates the value 0.
The system is defined as running when there is no stop request present and a setpoint 2350
FuelSetpoint greater than 0 % is selected. This state is indicated by 3802
SystemStopRequest = 0 and 3803 SystemStopped = 0. 3830 Phase indicates the operation
phase with the value 4.
For safety reasons neither automatic actuator calibration nor the actuator test mode is
possible during operation. The control unit will also reject attempts to load firmware and
an automatic system reset by the PC program.
5.2 Stopped state
When the control unit has started (booting routine) it automatically assumes that the
system is stopped. 3830 Phase indicates the value 0.
Following an operation phase, the system is detected as being stopped again if either a stop
request is present for 5 s (
5.2.1 Stop request) or the setpoint generator 2350 FuelSetpoint
selects the setpoint 0 % for 5 s.
During the 5 s stop request, a 4Q-actuator is positioned by force onto the lower limit stop,
whereas without a stop request and with a setpoint selection of 0 % it is controlled to the
lower limit stop. 2Q-actuators are always pulled to 0 by a strong spring.
After the 5 s, 3803 SystemStopped changes from 0 to 1 and 3830 Phase from 4 to 0. Both
indicate the active stopped state. The energization of the actuator can also be switched off
after this. This is achieved by entering a seconds value greater than 0 in parameter 1915
ServoCurrentOffDelay. After the 5 s referred to above and the delay in this param
eter, the
energization is switched off. If the parameter value is on 0 s, then the actuator is
continuously energized.
Consequently the system is “stopped” when parameter 3803 SystemStopped shows the
value 1. The system must be stopped before automatic actuator calibration can be
performed or the actuator test mode can be activated. Similarly, a new firmware download
and an automatic control unit reset by PC or hand programmer is only possible in this state.
The system runs in 3830 Phase = 8 during automatic actuator calibration, and in 3830
Phase = 9 during the actuator test. Both phases are quit immediately when a setpoint 2350
FuelSetpoint > 0 % is selected and there is no stop request present.
To Next Page
Loading...
Need help?
General