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MX/QX FOUNDATION Fieldbus Field Unit FCD LMENIM2330-01 – 08/11
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Channel 4 DI_ACTUATOR_FAULTS_1_CHAN Value
Monitor Relay 0x01
Valve Jammed 0x02
Manual Moved 0x04
Over Torque 0x08
Phase Error 0x10
Over Temp 0x20
Monitor Relay + Valve Jammed 0x03
Monitor Relay + Manual Move 0x05
Monitor Relay + Over Torque 0x09
Monitor Relay + Phase Error 0x11
Monitor Relay + Over Temp 0x21
Monitor Relay + Valve Jammed + Manual Move 0x07
Monitor Relay + Valve Jammed + Phase Error 0x13
Monitor Relay + Valve Jammed + Over Temp 0x23
Channel 5 – Actuator Faults 2
The Channel 5 Discrete Input function block, DI_ACTUATOR_FAULTS_2_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 occurred while traveling in the open direction
• An over torque condition occurred while traveling in the close direction
• Loss of electrical phase at the motor
• Thermal overload indicating the motor has overheated and the thermistor has opened; time is
required for the motor to cool and reset the thermistor.
Channel 5 DI_ACTUATOR_FAULTS_2_CHAN Value
Thermal Overload 0x01
Phase Error 0x02
Valve Jammed 0x04
Manual Moved 0x08
Open Torque Switch Fault 0x10
Close Torque Switch Fault 0x20
Thermal Overload + Manual Moved 0x09
Thermal Overload + Phase Error 0x03
Thermal Overload + Valve Jammed 0x05
Open Torque Switch Fault + Manual Moved 0x18
Close Torque Switch Fault + Manual Moved 0x28
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