WEG CFW-09 - Page 150

151
CHAPTER 6 - DETAILED PARAMETER DESCRIPTION
Range
[Factory Setting]
Parameter
Unit
Description / Notes
P209
(1)
0 or 1
Motor Phase Loss
[ 0 ]
Detection
-
P209
Motor Phase Loss (E15)
0
Off
1
On
Table 6.20 -
Actuation motor phase loss detection
P001 = Reference x P208 / Sync speed x (10)
P210
Where:
Reference = Speed Reference in rpm;
Speed = Motor speed in rpm;
Sync Speed = Motor synchronous speed (120 x P403 / Poles);
Poles = Motor number of poles (120 x P403 / P402).
Example:
Desired indication: 90.0 l/s at 1800 rpm
Motor synchronous speed: 1800 rpm
Programming: P208 = 900, P210 = 1, P207 = l, P216 = /, P217 = s
With the Motor Phase Loss Detector enabled (P209 = 1), E15 happens
when the following conditions occur simultaneously during a minimum
time of 2 seconds:
I.
P209 = On;
II.
Inverter enabled;
III.
Speed reference higher than 3 %;
IV.
| I
u
- I
v
| > 0.125 x P401 or | I
u
– I
w
| > 0.125 x P401
or | I
v
– I
w
| > 0.125 x P401.
P210
0 to 3
Decimal Point of
[ 0 ]
the Speed Indication
1
Defines the number of digits after the decimal point of the Speed
Reference (P001) and the Motor Speed indications (P002)
.
P211
Zero Speed Disable
0
Off
1
On
Whenactive,itdisables (generaldisabling,motorrunsfreely) theinverter
when the speed reference and theactual motor speed are lower than
the value set at P291 (Zero SpeedZone).
The CFW-09 willbe enabled again, when one of the conditions defined
by the Parameter P212 is satisfied.
Table 6.21 -
Zero speed disable
P211
(1)
0 or 1
ZeroSpeed
[ 0 ]
Disable
-