YASKAWA A1000 Technical Manual

5.3 C: Tuning
194 YASKAWA ELECTRIC SIEP C710616 27G YASKAWA AC Drive A1000 Technical Manual
 C5-17, C5-18: Motor Inertia, Load Inertia Ratio
C5-17 and C5-18 determine the ratio of the machine inertia to the inertia of the motor being used.
Example: Setting C5-18 to 2.0 reflects a load inerti
a that is twice the motor inertia.
These parameters are set automatically when Inertia Tuning and ASR
Tuning are performed in CLV and CLV/PM control
modes. Refer to Auto-Tuning on page 120 for details on Auto-Tuning or enter the
data manually.
 C5-21, C5-23 / C5-22, C5-24: Motor 2 ASR Proportional Gain 1, 2 / Integral Time 1, 2
These parameters function for motor 2 in the same way that C5-01 through C5-04 function for motor 1. For more details,
see C5-01, C5-03/C5-02, C5-04: ASR Proportional Gain 1, 2 / ASR Integral Time 1, 2 on page 192.
 C5-25: Motor 2 ASR Limit
Functions for motor 2 in the same way that C5-05 functions for motor 1. Sets the ASR output limit for motor 2 as a
percentage of the maximum output frequency (E4-04). For more details, see C5-05: ASR Limit on page 193.
 C5-26: Motor 2 ASR Primary Delay Time Constant
Functions for motor 2 in the same way that C5-06 functions for motor 1.
Sets the filter time constant for the time from the speed loop to the torque command
output. For more details, see C5-06:
ASR Primary Delay Time Constant on page 193.
Note: This parameter rarely requires adjustment.
 C5-27: Motor 2 ASR Gain Switching Frequency
Functions for motor 2 in the same way that C5-07 functions for motor 1.
Sets the frequency for motor 2 to
change ASR proportional gain 1 and 2 (C5-21, C5-23) as well as the integral time 1 and
2 (C5-22, C5-24). For more details, see C5-01, C5-03/C5-02, C5-04: ASR Proportiona
l Gain 1, 2 / ASR Integral Time
1, 2 on page 192.
Note: A multi-function input set for the ASR gain switch (H1- = 77) takes priority over the ASR gain switching frequency.
 C5-28: Motor 2 ASR Integral Limit
Functions for motor 2 in the same way that C5-08 functions for motor 1.
Sets the upper limit for ASR as a percentage of the rated
load.
No. Parameter Name Setting Range Default
C5-17
Motor Inertia
0.0001 to 600.00 kgm
2
Determined by C6-01, E5-01 and
o2-04
C5-18
Load Inertia Ratio
0.0 to 6000.0 1.0
No. Parameter Name Setting Range Default
C5-21
Motor 2 ASR Proportional Gain 1
0.00 to 300.00 Determined by E3-01
C5-22
Motor 2 ASR Integral Time 1
0.000 to 10.000 s Determined by E3-01
C5-23 Motor 2 ASR Proportional Gain 2 0.00 to 300.00 Determined by E3-01
C5-24 Motor 2 ASR Integral Time 2 0.000 to 10.000 s Determined by E3-01
No. Parameter Name Setting Range Default
C5-25 Motor 2 ASR Limit 0.0 to 20.0% 5.0%
No. Parameter Name Setting Range Default
C5-26 Motor 2 ASR Primary Delay Time Constant 0.000 to 0.500 s Determined by E3-01
No. Parameter Name Setting Range Default
C5-27 Motor 2 ASR Gain Switching Frequency 0.0 to 400.0 Hz 0.0 Hz
No. Parameter Name Setting Range Default
C5-28 Motor 2 ASR Integral Limit 0 to 400% 400%

YASKAWA A1000 Specifications

General

Type	AC Drive
Series	A1000
Input Voltage	200-240V, 380-480V
Frequency Range	0-400 Hz
Horsepower Range	0.5 to 1000 HP
Power Range	0.4 to 630 kW
Control Method	V/f Control
Overload Capacity	150% for 60 seconds
Braking	Dynamic Braking
Communication	Modbus
Safety	Safe Torque Off (STO)
Protection Features	Overcurrent, Overvoltage, Undervoltage, Overheat
Operating Temperature	-10 to +50°C
Storage Temperature	-20 to 60°C
Humidity	5 to 95% RH (non-condensing)
Enclosure	IP20