YASKAWA CIMR-ZU A Series Programming Manual page 123

No
L8-29
Settin Disabled
No current unbalance protection is provided to the motor.
Settin 1 Enabled
The LF2 fault is triggered if an output current unbalance is detected. Drive output shuts off and the motor coasts to stop.
L8 2 Main Contactor and Coolin Fan Po er Supply Failure Selection
Determines drive operation when a FAn fault occurs.
No
L8-32 Main Contactor and Cooling Fan Power Supply Failure Selection
Settin amp to Stop
The drive stops the motor using the deceleration time set in parameter C1-02.
Settin 1 Coast to Stop
The drive output is switched off and the motor coasts to a stop.
Settin 2 Fast stop
The drive stops the motor using the Fast stop time set in parameter C1-09.
Settin Alarm only
The operation is continued and a FAn alarm is displayed on the HOA keypad.
Settin Operation it
The operation is continued, but the speed is reduced to the level set in parameter L8-19.
"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.
Note:
L8 Installation Met od Selection
Selects the type of installation for the drive and changes the drive overload (oL2) limits accordingly.
1. Initialization does not reset this parameter.
Note:
2. The value is preset to the appropriate value when the drive is shipped. Change the value only when mounting a standard drive with the
heatsink outside the cabinet.
No
L8-35
<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.
Settin IP /Open C assis Enclosure
For an Open Type enclosure drive installed with at a minimum of 30 mm space to the next drive or a cabinet wall.
Settin 2 IP2 /NEMA 1 UL ype 1 Enclosure
For drives compliant with IP20/NEMA 1, UL Type 1 enclosure specifications.
Settin E ternal eatsin Installation
For standard drives mounted with the heatsink outside the cabinet or enclosure panel.
L8 8 Carrier Fre uency eduction 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
L8-38
Name
Current Unbalance Detection (LF2)
Name
educed Speed
Name
Installation Method Selection
Name
Carrier Frequency Reduction Selection
1 8 L Protection Functions
Settin an e
0, 1
Settin an e
0 to 4
Settin an e
Determined by
0, 2, 3
Settin an e
Determined by
0 to 2
A1-02 and o2-04
De ault
1
De ault
1
De ault
o2-04
<1>
1
De ault
12