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电机d.motor


DNAuse ...............................................................................................................................1 ....................................................................................................................1 ......................................................................................................................................1 ..............................................................................................................................2 ...........................................................................................................................2 ..............................................................................................................................2 .......................................................................................................................2 .......................................................................................................................3 ...........................................................................................................................3 ..............................................................................................................................3 Operations ...........................................................................................................................5 ......................................................................................................................................5 How to Start or Stop the Motor.........................................................................................5 .........................................................................................................5 .............................................................................................................5 .............................................................................................................5 ..................................................................................................6 ..................................................................................................6 .............................................................................................................7 Error Messages................................................................................................................8 ...........................................................................................................................8 Status Information..............................................................................................................10 ............................................................................................................................10 Alarms ............................................................................................................................10 ................................................................................................................................10 Limit Alarms ...................................................................................................................10 .........................................................................................................................10 Interlockings ...................................................................................................................11 ................................................................................................................................11 Disturbances ..................................................................................................................11 ................................................................................................................................11 Other States ...................................................................................................................12 .........................................................................................................................12 Faults .............................................................................................................................12 ................................................................................................................................12

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1

1. 2. /

2

A M L

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( ( (

) ) )

1. 2. 3. 4. 5.

/

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6. Limit alarms 7. Interlockings 8. Operability dialog button 9. Disturbances 10. Other states 11. Faults 12. Fault window button 13. Event mask dialog button 14. Fold button

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Operations

How to Start or Stop the Motor

1.

2.

Start

Stop

1.

l(L) 2.

5

1. 2.

Loop Window

>>

<<

1.

2.

OK

6

1.

2.

OK No.

1.

Masks...

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Abbreviations refer to the status information displayed in the loop window. Plant-specific statuses that have not been configured appear dimmed and unmarked.

2. To enable or disable an event mask, click the corresponding option button. 3. Click the OK button. The dialog will close and the changes will be updated to the system. OK

Error Messages

The following error messages may occur in motor operations:

The loop is not operable.

The operation is disabled because the loop is in automatic mode.

8

The operation is disabled because the loop is in local mode.

The operation is disabled because a release is missing.

The operation is disabled because forced control is active.

Switching to automatic or local mode is disabled.

Switching to manual or local mode is disabled.

Switching from local mode to system's control is disabled.

The operation is disabled because forced manual is active.

The operation is disabled because an external disturbance is active.

You are not authorized to perform the action.

The operation failed. The cause may be for example a system failure.

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Status Information

Alarms

Motor alarm indicates that the motor is in an undesired state. The alarm is indicated with the red background color on the running status symbol. In the expanded loop window, the alarm is also indicated by the changed status (Active) of the event which has caused the alarm. The Active status is highlighted in red. The background color blinks if the alarm has not yet been acknowledged.

The motor may have the following alarms:

Limit alarms

Current exceeds the higher high limit Current exceeds the high limit

Interlockings

Forced control On Forced control Off

Disturbances

Watchdog disturbance

Other states

External input

Limit Alarms

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Limit alarms indicate that the motor current has exceeded the allowed alarm limit. There are two alarm limits:

M higher high M high

-

Measured current exceeds the higher high limit. . Measured current exceeds the high limit. .

Interlockings

The purpose of an interlocking is to prevent incorrect operations and to force the motor into a required state when necessary. In case of disturbances, for example, the purpose of the interlockings is to put the process into a secured state. Interlockings are caused by other control loops or sequence controls. There are five interlockings:

Release On Release Off Forced control On Forced control Off Operation disabled

-

On release is missing. Off release is missing. Motor is forced to run. Motor is forced to stop.

. . . . .

Motor operation has been disabled.

Disturbances

A disturbance indicates a fault in the motor or in its controls. It triggers an alarm and, when necessary, a shift to forced control. The disturbance specifier is displayed below the status

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text. A disturbance can have any of the following specifiers:

Disturbance start Disturbance stop Failed start Failed stop Faulty status data On control fault Off control fault

Other States

Other states consist of the plant-specific external inputs. All inputs may not be in use. An external input may cause a disturbance. The name of the input refers to the true origin of the disturbance.

Faults

A fault indicates that part of the presented information is not reliable. It is indicated with the violet background color of the running status symbol.

A motor can have the following system faults:

Current

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Status

When a fault occurs, a series of fault numbers (1 – 7) is displayed in the loop window in (1-7) the Faults field next to the faulty signal. The numbers refer to the faults listed in the Fault window. For example, series 45 indicates that faults 4 and 5 are active. 45 4 5

The Fault window can be opened by clicking the

button.

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