YASKAWA AC Drive-A1000 Technical Manual page 439

No.
(Addr. Name
Hex)
n8-54 Voltage Error Compensation
(56D) Time Constant
n8-55
Load Inertia
(56E)
n8-57
High Frequency Injection
(574)
n8-62
Output Voltage Limit
(57D)
Speed Feedback Detection
n8-65
Control Gain during ov
(65C)
Suppression
<1> Default setting is dependent on parameter E5-01, Motor Code Selection.
YASKAWA ELECTRIC SIEP C710616 31B YASKAWA AC Drive – A1000 Technical Manual
Description
V/f V/f V/f w PG V/f w PG OLV OLV
OLV/PM OLV/PM OLV/PM OLV/PM AOLV/PM AOLV/PM CLV/PM CLV/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.
V/f V/f V/f w PG V/f w PG OLV OLV
OLV/PM OLV/PM OLV/PM OLV/PM AOLV/PM AOLV/PM CLV/PM CLV/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.
V/f V/f V/f w PG V/f w PG OLV OLV
OLV/PM OLV/PM AOLV/PM AOLV/PM AOLV/PM AOLV/PM CLV/PM CLV/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.
V/f V/f V/f w PG V/f w PG OLV OLV
OLV/PM OLV/PM OLV/PM OLV/PM AOLV/PM AOLV/PM AOLV/PM AOLV/PM CLV/PM CLV/PM CLV/PM CLV/PM
Prevents output voltage saturation. Should be set just below the voltage
provided by the input power supply.
V/f V/f V/f w PG V/f w PG OLV OLV
OLV/PM OLV/PM OLV/PM OLV/PM AOLV/PM AOLV/PM CLV/PM CLV/PM
Sets the gain used for internal speed feedback detection during ov suppression.
B.11 n: Special Adjustment
CLV CLV
CLV CLV
CLV CLV
CLV CLV
CLV CLV
Values Page
Default: 1.00 s
Min.: 0.00 276
Max.: 10.00
Default: 0
Min.: 0 277
Max.: 3
Default: 0
277
Range: 0, 1
Default: 575.0 V
Min.: 0.0 277
Max.: 661.3
Default: 1.50
Min.: 0.00 277
Max.: 10.00
439
B