YASKAWA GA500 Series Programming page 400

2.9 L: Protection Functions
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L8-11: Heatsink Fan Off-Delay Time
No.
Name
(Hex.)
L8-11 Heatsink Fan Off-Delay
Time
(04B7)
■
L8-12: Ambient Temperature Setting
No.
Name
(Hex.)
L8-12 Ambient Temperature
Setting
(04B8)
Note:
The setting range changes when the L8-35 [Installation Method Selection] value changes:
• 0 [IP20/UL Open Type]: -10 °C to +60 °C
• 1 [Side-by-Side Mounting]: -10 °C to +50 °C
• 2 [IP20/UL Type 1]: -10 °C to +50 °C
• 3 [External Heatsink]: -10 °C to +50 °C
The drive automatically adjusts the drive rated current to the best value as specified by the set temperature. Set the
ambient temperature of the area where you install the drive to a value that is more than the drive rating.
Refer to the GA500 Technical Reference (Doc. SIEPC71061752) Specifications section for information about
derating as specified by ambient temperature.
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L8-15: Drive oL2 @ Low Speed Protection
No.
Name
(Hex.)
L8-15 Drive oL2 @ Low Speed
Protection
(04BB)
Note:
Contact Yaskawa or your nearest sales representative for consultation before disabling this function at low speeds. Frequent operation of
drives under conditions of high output current in low speed ranges may shorten the service life of the drive IGBT due to heat stress.
0 : Disabled (No Additional Derate)
The drive does not decrease the overload protection level.
1 : Enabled (Reduced oL2 Level)
When the drive detects oL2 during low speed operation, it automatically decreases the overload detection level.
At zero speed, the drive derates the overload by 50%.
■
L8-18: Software Current Limit Selection
No.
Name
(Hex.)
L8-18 Software Current Limit
Selection
(04BE)
0 : Disabled
When the output current is at the software current limit value, the drive does not restrict the output voltage.
Note:
The drive may detect an oC [Overcurrent] when loads are particularly heavy or the acceleration time is particularly short.
1 : Enabled
When the output current is at the software current limit value, the drive decreases output voltage to decrease output
current.
400
V/f OLV OLV/PM OLV/PM AOLV/PM EZOLV
Sets the length of time that the drive will wait before it stops the cooling fan after it cancels the Run
command when L8-10 = 0 [Heatsink Cooling Fan Ope Select = Dur Run (OffDly)].
V/f OLV OLV/PM AOLV/PM EZOLV OLV/PM
Sets the ambient temperature of the drive installation area.
V/f OLV OLV/PM AOLV/PM EZOLV OLV/PM
Sets the function to decrease drive overload at low speeds to prevent damage to the main circuit
transistor during low speed operation (at 6 Hz or slower) to prevent oL2 [Drive Overloaded].
V/f OLV OLV/PM AOLV/PM EZOLV OLV/PM
Set the software current limit selection function to prevent damage to the main circuit transistor
caused by too much current.
Description
Description
Description
Description
YASKAWA TOEPYAIGA5002A GA500 Programming
Default
(Range)
60 s
(0 - 300 s)
Default
(Range)
40 °C
(-10 °C - +60 °C)
Default
(Range)
1
(0, 1)
Default
(Range)
0
(0, 1)