YASKAWA FSDrive-MV1000 Parameter Manual page 216

2.8 L: Protection Functions
L8-65: Output Voltage Imbalance Detection Operation Selection
■
Sets the action the drive should take when an output voltage imbalance is detected.
No.
Output Voltage Imbalance Detection Operation
L8-65
Setting 0: Ramp to stop using the deceleration time set in C1-02
Setting 1: Coast to stop
Setting 2: Ramp to stop using the Fast Stop time set in C1-09
Setting 3: Alarm only
L8-66: Output Voltage Imbalance Detection Level
■
Sets the level at which imbalance of the output voltage is detected in 0.1% units (100%: 2400 V for the 2 kV class, 3300
V for the 3 kV class, 4160 V for the 4 kV class, 6600 V for the 6 kV class, and 11000 V for the 11 kV class).
No.
L8-66 Output Voltage Imbalance Detection Level
L8-67: Output Voltage Imbalance Detection Time
■
Sets the time before output voltage imbalance is detected, in 0.001 s units. If the state in which the zero-phase voltage
detection value exceeds the level set for L8-66 continues for the time set for L8-67 or longer, output voltage imbalance
(VUB) is detected.
No.
L8-67 Output Voltage Imbalance Detection Time
■ L8-86: Transformer Overheat Alarm (TMA) Operation Selection
Parameter L8-86 sets the action the drive should take when a transformer overheat pre-alarm (TMA) is detected.
No.
Transformer Overheat Alarm (TMA) Operation
L8-86
Setting 0: Ramp to stop
The drive stops the motor using the deceleration time 1 set in parameter C1-02.
Setting 1: Coast to stop
The drive output is switched off and the motor coasts to stop.
Setting 2: Fast Stop
The drive stops the motor using the Fast Stop time set in parameter C1-09.
Setting 3: Alarm only
The operation is continued.
Note: TMA is detected as a fault when setting 0 to 2 is selected. It is detected as an alarm when setting 3 or 4 is selected.
L8-87: Transformer Overheat Alarm (TMA) Level
■
Sets the trigger temperature for the transformer overheat alarm (TMA) function in °C units.
Note: When the detected transformer temperature has reached the setting for this parameter, a transformer overheat alarm (TMA) is
detected.
No.
L8-87 Transformer Overheat Alarm (TMA) Level
<1> For details on the default settings, refer to
216
Name
Selection
Name
Name
Name
Selection
Name
Defaults by Drive Model Selection (o2-04) on page
Setting Range
0 to 3
Setting Range
0.0 to 100.0%
Setting Range
0.001 to 2.000 s
Setting Range
0 to 3
Setting Range
50 to 160°C
82.
YASKAWA ELECTRIC EZZ010930 FSDrive-MV1000 Parameter Guide
Default
3
Default
10.0%
Default
0.200 s
Default
3
Default
Determined by o2-04
<1>