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EXCEL 50/100/500/600/800 ATTRIBUTES
EN2B-0092GE51 R0512
29
Motor Run Time
Time to open / time to close For actuators controlled via a three-position output, two values (time to open / time
to close) can be entered in the attribute “Motor Run Time”. This attribute defines the
time required by the actuator to change from the “Open” to the “Closed” state, and
vice versa.
If no value is entered for the “Time to Closed” motor run time, then the “Time to
Open” motor run time is assumed automatically. In the case of the motor run-on
time, when reversing directions, 1% of the “Time to Open” motor run time is added
to the calculated time.
The three-position output relay energizes when the calculated run time reaches
500 ms. The stated run time always amounts to 500 ms or a multiple thereof. A
calculated run time of, for instance, 1215 ms results in an actual run time of
1000 ms.
CAUTION
Regarding motor run time, the behavior of controllers with OS < 2.06.05
engineered using CARE 4 differs significantly from controllers with OS
2.06.05 and higher engineered using CARE 7 and higher. See also section
“Controller OS 2.06 usage and functionality in CARE 4 and CARE – XL500
7.01.02” in Excel CARE – User Guide (EN2B-0182GE51).
Off Phase
Fig. 16. Off phase
The attribute "Off Phase" is used in conjunction with flexible datapoints of the type
"feedback". It defines the duration of the OFF phase on switching down. It is of
relevance only if the attribute “Switching Down” is set to 0, i.e. if OFF phases are
selected on switching down.
• Range: 0 to 255s
• Default value: 10s
• Resolution: 1s
The OFF phase has to be defined for devices with large inertia, such as fans.
Operating Mode
The attribute "Operating Mode" enables the user to switch between manual and
automatic operation.
Automatic Under automatic operation, the controller processes the values at the inputs, for
instance from temperature sensors. For outputs, under automatic operation, the
status shown by the user/time switch program is adopted, e.g., "Heating circuit
pump off".