Yaskawa AC Drive Z1000 - Manual (Page 184)

Setting 1: Enabled
The LF2 fault is triggered if an output current unbalance is detected. Drive output shuts off and the motor coasts to stop.
n L8-32: Main Contactor and Cooling Fan Power Supply Failure Selection
Determines drive operation when a FAn fault occurs.
No. Name Setting Range Default
L8-32 Main Contactor and Cooling Fan Power Supply Failure Selection 0 to 4 1
Setting 0: Ramp to Stop
The drive stops the motor using the deceleration time set in parameter C1-02.
Setting 1: Coast to Stop
The drive output is switched off and the motor coasts to a 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 and a FAn alarm is displayed on the HOA keypad.
Setting 4: Operation with Reduced Speed
The operation is continued, but the speed is reduced to the level set in parameter L8-19.
Note: “FAn” is detected as an error when Settings 0 or 2 are selected; it is detected as an alarm when Settings 3 or 4 are selected.
n L8-35: Installation Method Selection
Selects the type of installation for the drive and changes the drive overload (oL2) limits accordingly.
Note: 1. Initialization does not reset this parameter.
2. The value is preset to the appropriate value when the drive is shipped. Change the value only when using Side-by-Side installation or
when mounting a standard drive with the heatsink outside the cabinet.
No. Name Setting Range Default
L8-35 Installation Method Selection 0, 2, 3
Determined by
o2-04 <1>
<1> Default setting is determined by drive model.
Setting 2: Models 2A0011 to 2A0211 and 4A0005 to 4A0096
Setting 0: Models 2A0273 to 2A0396 and 4A0124 to 4A0590.
Setting 0: IP00/Open-Chassis Enclosure
For an Open Type enclosure drive installed with at a minimum of 30 mm space to the next drive or a cabinet wall.
Setting 2: IP20/NEMA Type 1 Enclosure
For drives compliant with IP20/NEMA Type 1 enclosure specifications.
Setting 3: External Heatsink Installation
For standard drives mounted with the heatsink outside the cabinet or enclosure panel.
n L8-38: Carrier Frequency Reduction Selection
Selects the operation of the carrier frequency reduction function. Reduces the carrier frequency when the output current exceeds
a certain level. This temporarily increases the overload capability (oL2 detection), allowing the drive to run through transient
load peaks without tripping.
No. Name Setting Range Default
L8-38 Carrier Frequency Reduction Selection 0 to 2
Determined by
A1-02 and o2-04
Setting 0: Disabled
No carrier frequency reduction at high current.
4.13 Advanced Drive Setup Adjustments
184 YASKAWA ELECTRIC TOEP C710616 45E YASKAWA AC Drive – Z1000 User Manual