Flowserve MX FOUNDATION Fieldbus Field Unit - Manual (Page 46)

MX/QX FOUNdaTION Fieldbus Field Unit FCd LMENIM2330-01 – 08/11
46
Channel 2 – Position and Bus Mode
The channel 2 Discrete Input function block, DI_POSITION_AND_BUS_MODE_CHAN, makes actuator
status information available to other function blocks. The status information describes the position of
the actuator, that is open or closed, the direction of motion of the actuator, that is opening or closing,
and the operating mode, that is either Local, Remote, or Stop (off).
Channel 2 DI_POSITION_AND_BUS_MODE_CHAN Value
Opened + Remote 0x21
Closed + Remote 0x22
Opening + Remote 0x24
Closing + Remote 0x28
Stop + Remote 0x30
Opened + Local 0x41
Closed + Local 0x42
Opening + Local 0x44
Closing + Local 0x48
Stop + Local 0x50
Opened + Stop 0x81
Closed + Stop 0x82
Opening + Stop 0x84
Closing + Stop 0x88
Stop + Stop 0x90
Channel 3 – Position Channel
The Channel 3 Discrete Input function block, DI_POSITION_CHAN, makes actuator status informa-
tion available to other function blocks. The status information describes the position or direction of
motion of the actuator, that is either Opened, Closed, Opening, Closing, or Stop.
Channel 3 DI_POSITION_CHAN Value
Opened 0x01
Closed 0x02
Opening 0x04
Closing 0x08
Stop 0x10
Channel 4 – Actuator Faults 1
The Channel 4 Discrete Input function block, DI_ACTUATOR_FAULTS_1_CHAN, makes actuator faults
available to other function blocks. The reported faults include:
• Valve jammed in motion due to a tripped torque switch
• Valve was manually moved with the actuator handwheel
• An over torque condition while traveling
• Loss of electrical phase
• Thermal overload indicating the motor has overheated and the thermistor has opened.