Future Design MCTB 4.3, Руководство пользователя

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MCTB
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The
Alarm output function activates the Alarm 2 configuration settings for assigning the type of alarm logic to
apply to output 3. When the alarm condition is active, the output will turn on.
The
Reverse alarm output function activates the Alarm 2 configuration settings for assigning the type of alarm
logic
to apply to output 3. The output will be normally “on” when this function is selected. When the alarm
condition is active, the output will turn off.
The
Event output function allows the output to be turned on and off via an automatic program or manually
through the MCTB runtime application to act as a “soft” switch to turn system components on and off.
The
DC power supply output function must be selected when the output type ordered for the loop control
board output 3 is a transmitter power supply.
The
Manual event output only function is similar to the Event output function above as it allows the output to
be turned on manually through the MCT B
runtime application to act as a “soft” switch to turn system
components on and off. However, the output cannot be controlled via an automatic program which allows the
output to be controlled separately regardless of program operation.
The
Math/Logic event output only function allows the output to be controlled only by a logic equation ((See
section 4.6 Math/Logic Configuration ). The output will not be accessible through the runtime application as a
“soft” switch like the event/manual event only selections.
4.2.20 Output 3 Failure Transfer
The output 3 failure transfer setting is used to set whether the output should be on (1) or off (0) when there is
an input failure, i.e., sensor break. The setting applies to alarm output functions only.
4.2.21 Output 4 Function
The Output 4 Function selection is used to configure the loop control board output as an alarm, event or
retransmit output. The output selections are mutually exclusive, i.e., selecting one will turn off the others. Once
the desired function has been selected, press the “Done” button to set the output function and return to the
main Loop Configuration screen.
NOTE: The output function must be set to match the type of output ordered on the loop control board. Relay,
triac and SSRD output types are used for alarm or event outputs. The retransmission VDC and mA
output types are used for process value or set point retransmit.