YASKAWA CIPR-GA50C series, Technical Manual

Page: 708 / 766

12.9 L: Protection Functions
708 YASKAWA SIEPC71061753A GA500 Technical Manual
Set L8-40 ≠ 0.00 to enable the carrier frequency reduction function during start-up. When operation starts, the
drive automatically decreases the carrier frequency. When the time set in L8-40 is expired, the carrier frequency
returns to the value set in C6-02 [Carrier Frequency Selection] .
■
L8-41: High Current Alarm Selection
No.
(Hex.)
Name Description
Default
(Range)
L8-41
(04F2)
High Current Alarm
Selection
Sets the function to cause an HCA [Current Alarm] when the output current is more than 150% of
the drive rated current.
0
(0, 1)
0 : No
The drive will not detect HCA .
1 : Yes
If the output current is more than 150% of the drive rated current, the drive will detect HCA .
The MFDO terminal set for an Alarm [H2-01 to H2-03 = 10] activates.
■
L8-51: STPo I Detection Level
No.
(Hex.)
Name Description
Default
(Range)
L8-51
(0471)
Expert
STPo I Detection Level
Sets the STPo [Motor Step-Out Detected] detection level as a percentage of the motor rated
current.
0.0%
(0.0 - 300.0%)
Note:
The detection level is automatically calculated when L8-51 = 0 .
■
L8-52: STPo Integration Level
No.
(Hex.)
Name Description
Default
(Range)
L8-52
(0472)
Expert
STPo Integration Level
Sets the detection level for STPo [Motor Step-Out Detected] related to the ACR integral value.
1.0
(0.1 - 2.0)
■
L8-53: STPo Integration Time
No.
(Hex.)
Name Description
Default
(Range)
L8-53
(0473)
Expert
STPo Integration Time
Sets the length of time until the drive detects STPo after it is more than the value of L8-51 [STPo I
Detection Level] .
1.0 s
(1.0 - 10.0 s)
■
L8-54: STPo Id Diff Detection
No.
(Hex.)
Name Description
Default
(Range)
L8-54
(0474)
Expert
STPo Id Diff Detection
Sets the Id deviation detection function for STPo [Motor Step-Out Detected] .
1
(0, 1)
0 : Disabled
1 : Enabled
■
L8-55: Internal DB TransistorProtection
No.
(Hex.)
Name Description
Default
(Range)
L8-55
(045F)
Internal DB
TransistorProtection
Sets the protection function for the internal braking transistor.
1
(0, 1)
0 : Disable
Disables braking transistor protection.
Use this setting, if enabling the braking transistor can cause an rF [Braking Resistor Fault] in these conditions:
V/f OLV OLV/PM OLV/PM AOLV/PM EZOLV
V/f OLV OLV/PM OLV/PM AOLV/PM EZOLV
V/f OLV OLV/PM OLV/PM AOLV/PM EZOLV
V/f OLV OLV/PM OLV/PM AOLV/PM EZOLV
V/f OLV OLV/PM OLV/PM AOLV/PM EZOLV
V/f OLV OLV/PM OLV/PM AOLV/PM EZOLV