Motorvision Drawout (MVD) Technical Manual - PBSI Group Ltd
Motorvision Drawout (MVD) Technical Manual - PBSI Group Ltd
Motorvision Drawout (MVD) Technical Manual - PBSI Group Ltd
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<strong>MVD</strong> TECHNICAL MANUAL<br />
10.3.1.3. Start Data.<br />
INPUTS<br />
DISTURB<br />
VALUES<br />
START<br />
DATA<br />
EXIT<br />
Start Data provides access to the recorded information gather during the last<br />
successful start of the machine.<br />
The energising Start Curve of the Motor is recorded graphically and can be viewed<br />
at any time. This can also be stored permanently as a reference curve. The<br />
Starting analogue values are also recorded.<br />
10.3.1.3.1. Last Curve.<br />
LAST<br />
CURVE<br />
START<br />
VALUES<br />
REFERENCE<br />
CURVE<br />
EXIT<br />
STORE AS<br />
REFERENCE<br />
6X<br />
4X<br />
2X<br />
START<br />
VALUES<br />
Time [x axis dictated by Max Start Time setting]<br />
REFERENCE<br />
CURVE<br />
Last Curve<br />
EXIT<br />
This screen shows the curve of current against time for<br />
the last time the motor was started.<br />
The option is given for this curve to be stored as the<br />
REFERENCE CURVE by pressing the top-left button.<br />
When the user gives confirmation of the decision, the<br />
curve is then stored as the reference curve.<br />
The time axis of the plot is dictated by the trip time (regardless if the function is active or not) of<br />
the Maximum start Time protection function.<br />
10.3.1.3.2. Start Values.<br />
LAST<br />
CURVE<br />
START<br />
VALUES<br />
REFERENCE<br />
CURVE<br />
EXIT<br />
Last Start Values<br />
Thermal Capacity Used<br />
0%<br />
Last Peak I<br />
Start Time<br />
EXIT<br />
0A<br />
0S<br />
This screen shows the data that was measured when<br />
the motor was last started.<br />
The data that is shown is as follows:<br />
Thermal Capacity Used<br />
Peak Current<br />
Duration of Start<br />
10.3.1.3.3. Reference Curve.<br />
LAST<br />
CURVE<br />
START<br />
VALUES<br />
REFERENCE<br />
CURVE<br />
EXIT<br />
6X<br />
4X<br />
2X<br />
LAST<br />
CURVE<br />
Reference Curve<br />
START<br />
VALUES<br />
EXIT<br />
Time<br />
This screen shows the reference curve of the<br />
energising current of the machine. The reference curve<br />
is a stored previous start.<br />
The reference curve and last start curve can be readily<br />
compared. Any differences between the two plots can<br />
easily be seen.<br />
P&B Engineering Issue 1 03/2008 Page 17
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