n
L8-41: High Current Alarm Selection
Triggers a high current alarm (HCA) when the output current exceeds 150% of the drive rated current.
No.
Name
Setting Range
Default
L8-41
High Current Alarm Selection
0, 1
0
Setting 0: Disabled
No alarm is detected.
Setting 1: Enabled
An alarm is triggered when the output current exceeds 150% of the drive rated current. A digital output set for an alarm
(H2-
oo
= 10) will close.
n
L8-97: Carrier Frequency Reduction Rate during oH Pre-Alarm
Derates the carrier frequency to the level set to L8-39 during oH pre-alarm.
No.
Name
Setting Range
Default
L8-97
Carrier Frequency Reduction Rate during oH Pre-Alarm
0, 1
0
Setting 0: Disabled
Setting 1: Enabled
u
L9: Drive Protection 2
n
L9-03: Carrier Frequency Reduction Level Selection
Selects start or clear current level for automatic carrier frequency reduction. There is normally no need to change this parameter
from the default value.
No.
Name
Setting Range
Default
L9-03
Carrier Frequency Reduction Level Selection
0, 1
0
Setting 0: Reduces the Carrier Frequency Based on the Drive Rated Current that Is Not Derated
Setting 1: Reduces the Carrier Frequency Based on the Drive Rated Current that Is Derated by the Carrier Frequency
and Temperature with C6-02 Selection
n
L9-12: SoH Alarm Selection during bb
Sets the SoH (Snubber Discharge Resistor Overheat) alarm to output a fault or a minor fault during baseblock (bb). There is
normally no need to change this parameter from the default value.
Note:
This parameter is available in drive software versions PRG: 6113 and later.
No.
Name
Setting Range
Default
L9-12
SoH Alarm Selection during bb
0, 1
0
Setting 0: Outputs a Fault for an SoH Alarm during Baseblock (bb)
Setting 1: Outputs a Minor Fault for an SoH Alarm during Baseblock (bb)
1.8 L: Protection Functions
128
YASKAWA ELECTRIC SIEP C710636 10C Z1000U HVAC MATRIX Drive Programming Manual
