YASKAWA Z1000 User Manual page 181

n L8-40: Carrier Frequency Reduction Off-Delay Time
Sets a hold time before returning to the original carrier frequency setting after the carrier frequency has been temporarily
derated as determined by L8-38. The carrier frequency reduction function is disabled when this value is 0.00 s.
No.
L8-40 Carrier Frequency Reduction Off-Delay Time
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.
L8-41
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 L8-55: Internal Braking Transistor Protection
Enables and disables protection for the internal braking transistor.
No.
L8-55
Setting 0: Disabled
Disable braking transistor protection when not using the internal braking transistor, including the following instances:
• When using a regen converter such as DC5.
• When using a regen unit such as RC5.
• When using external braking transistor options like CDBR units.
• When using the drive in common DC bus applications and the internal braking unit is not installed.
Enabling L8-55 under such conditions can incorrectly trigger a braking transistor fault (rr).
Setting 1: Enabled
Enable L8-55 when connecting a braking resistor or a braking resistor unit to the drive built-in braking transistor.
Models 5A0003 to 5A0052 come with a built-in braking transistor.
n o1-01: Drive Mode Unit Monitor Selection
The frequency reference display appears when the drive is powered up. Pressing the up arrow key will display the following
data: frequency reference → rotational direction → output frequency → output current → o1-01 selection.
Parameter o1-01 selects the content of the last monitor in this sequence.
No.
o1-01
<1> U2-oo and U3-oo parameters cannot be selected.
n o1-02: User Monitor Selection after Power Up
Selects which monitor parameter is displayed upon power up by entering the 1- oo part of U1-oo. Certain monitors are
not available in some control modes.
No.
o1-02
YASKAWA TOEP YAIZ1U 03B YASKAWA AC Drive – Z1000 User Manual
Name
Name
High Current Alarm Selection
Name
Internal Braking Transistor Protection
Name
Drive Mode Unit Monitor Selection
Name
User Monitor Selection after Power Up
4.13 Advanced Drive Setup Adjustments
Setting Range
0.00 to 2.00 s
Setting Range
0, 1
Setting Range
0, 1
Setting Range
104 to 699
U1-04 (Control Mode) to
U6-99 (Option Monitors 20)
<1>
Setting Range
1 to 5
Default
0.50 s
Default
0
Default
1
4
Default
106 (U1-06)
Default
1
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