March 2021
Installation, Operation and Maintenance Manual
MDE 254 Rev. 1
Device Variables50
Section 9: Device Variables
Bit Description
b0 Motor Thermostat
b1 Hi-Hi Torque in opening
b2 Hi-Hi Torque in closing
b3 Reserved
b4 Reserved
b5 Hi-Hi Temperature
b6 Position Sensor
b7 Speed Sensor
b8 Main Voltage
b9 K1 Contactor
b10 K2 Contactor
b11 Configuration
b12 Hardware
b13 Low battery
b14 Lost phase
b15 Request signal
b16 Hi-Hi Torque in intermediate position
b17 Jammed in closing
b18 Jammed in opening
b19 Direction test fail
b20 Mid travel alarm OP
b21 Mid travel alarm CL
b22 Reserved
b23 Reserved
b24 Alarm Extended #1
b25 Alarm Extended #2
b26 Alarm Extended #3
9.6 Device Variable 3: Position Request
This variable permits to drive the actuator in a desired position when Loop Current Mode is Disabled
or HART topology is Multidrop.
9.7 Device Variable 4: Dead Band
This variable sets the percentage of the maximum position error without electrical commands.
9.8 Device Variable 5: Motion Inhibit Time
This variable indicates the length of the delay time between two motor cycles.
9.9 Device Variable 6: Actuator Alarms (1)
This variable shows the alarms status of the actuator. It’s is a bit_enumerated variable,
it’s not possible to write this data. The possible values are:
Table 139.
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