YASKAWA AC Drive-A1000 - Page 439

No.
(Addr.
Hex)
Name Description Values Page
n8-54
(56D)
Voltage Error Compensation
Time Constant
V/f
OLV/PM
V/f w PG
AOLV/PM
OLV
CLV/PM
CLV
OLV/PM
V/f
OLV/PM
V/f w PG
AOLV/PM
OLV
CLV/PM
CLV
OLV/PM
Adjusts the value when hunting occurs at low speed. If hunting occurs with
sudden load changes, increase n8-54 in increments of 0.1. Reduce this setting
if oscillation occurs at start.
Default: 1.00 s
Min.: 0.00
Max.: 10.00
276
n8-55
(56E)
Load Inertia
V/f
OLV/PM
V/f w PG
AOLV/PM
OLV
CLV/PM
CLV
OLV/PM
V/f
OLV/PM
V/f w PG
AOLV/PM
OLV
CLV/PM
CLV
OLV/PM
For large inertia loads or to increase the speed control response, increase this
setting. Too high of a setting when driving a very light load or load with very
low inertia can result in oscillation.
Default: 0
Min.: 0
Max.: 3
277
n8-57
(574)
High Frequency Injection
V/f
OLV/PM
V/f w PG
AOLV/PM
OLV
CLV/PM
CLV
AOLV/PM
V/f
OLV/PM
V/f w PG
AOLV/PM
OLV
CLV/PM
CLV
AOLV/PM
0: Disabled. Disable when using an SPM motor.
1: Enabled. Use this setting to enhance the speed control range when using an
IPM motor.
Default: 0
Range: 0, 1
277
n8-62
(57D)
Output Voltage Limit
V/f
OLV/PM
V/f w PG
AOLV/PM
OLV
CLV/PM
CLVV/f
OLV/PM
V/f w PG
AOLV/PM
OLV
CLV/PM
CLV
OLV/PM AOLV/PM CLV/PMOLV/PM AOLV/PM CLV/PM
Prevents output voltage saturation. Should be set just below the voltage
provided by the input power supply.
Default: 575.0 V
Min.: 0.0
Max.: 661.3
277
n8-65
(65C)
Speed Feedback Detection
Control Gain during ov
Suppression
V/f
OLV/PM
V/f w PG
AOLV/PM
OLV
CLV/PM
CLV
OLV/PM
V/f
OLV/PM
V/f w PG
AOLV/PM
OLV
CLV/PM
CLV
OLV/PM
Sets the gain used for internal speed feedback detection during ov suppression.
Default: 1.50
Min.: 0.00
Max.: 10.00
277
<1> Default setting is dependent on parameter E5-01, Motor Code Selection.
B.11 n: Special Adjustment
YASKAWA ELECTRIC SIEP C710616 31B YASKAWA AC Drive – A1000 Technical Manual
439
B
Parameter List