WEG MVW3000 Series, Руководство по программированию

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5
DETAILED PARAMETER DESCRIPTION
Description:
It defines how the Motor speed reference (P0001) and Motor speed (P0002) will be presented when it runs at
synchronous speed.
To indicate the values in rpm:
Set P0208 to the synchronous speed according to
Table 5.21 .
Table 5.21: Synchronous speed reference in rpm
Frequency Number of motor poles Synchronous Speed
2 3000
4
1500
6 1000
50 Hz
8 750
2 3600
4 1800
6 1200
60 Hz
8 900
The value shown can be calculated through the formulas:
P0002 =
speed
×
P0208
sync. speed
P0001
=
reference
×
P0208
sync. speed
Where:
Speed = present speed in rpm.
Sync. speed = 120 x P0403 / poles.
Poles = 120 x P0403 / P0402, it may be equal to 2, 4, 6, 8 or 10.
Reference = speed reference in rpm.
P0209 - Motor phase loss detection
Adjustable range: 0 to 1 Factory setting: 0
Acesso: Menu
→
Configurations
→
Protections
Description:
The Motor Phase Loss Detection trips indicating F0076 when the following conditions are simultaneously
satisfied:
1. P0209 = Active.
2. Enabled inverter.
3. Speed reference higher than 3 %.
4. I
max
>
1.125
×
I
min
.
Where:
I
max
is the highest current of the three phases.
I
min
is the lowest current of the three phases.
Table 5.22: Motor phase loss detection
P0209 Function
0 Inactive
1 Active
✓
NOTE!
This parameter can be changed only with the motor stopped.
MVW3000 | 5-33