YASKAWA A1000 Technical Manual

5.2 b: Application
YASKAWA ELECTRIC SIEP C710616 27G YASKAWA AC Drive A1000 Technical Manual 171
Parameter Details
5
 b5-01: PID Function Setting
Enables or disables the PID operation and selects the PID operation mode.
Setting 0: PID disabled
Setting 1: Output frequency = PID output 1
The PID controller is enabled and the PID output builds the frequency reference. The PID input is D controlled.
Setting 2: Output frequency = PID output 2
The PID controller is enabled and the PID output builds the frequency reference. The PID feedback is D controlled.
Setting 3: Output frequency = frequency reference + PID output 1
The PID controller is enabled and the PID output is added to the frequency reference. The PID input is D controlled.
Setting 4: Output frequency = frequency reference + PID output 2
The PID controller is enabled and the PID output is added to the frequency reference. The PID feedback is D controlled.
Setting 5: Mode compatible with setting 1 of similar products from a previous product line
Setting 6: Mode compatible with setting 2 of similar products from a previous product line
Setting 7: Mode compatible with setting 3 of similar products from a previous product line
Setting 8: Mode compatible with setting 4 of similar products from a previous product line
Note: If the used drive is replaced with Varispeed F7 inverter or a similar product from a past line, use settings 5 to 8 instead of settings
1 to 4.
 b5-02: Proportional Gain Setting (P)
Sets the P gain that is applied to the PID input. A large value will tend to reduce the error, but may cause instability
(oscillations) if set too high. A low value may allow too much offset between the setpoint and feedback.
 b5-03: Integral Time Setting (I)
Sets the time constant that is used to calculate the integral of the PID input. The smaller the integral time set to b5-03, the
faster the offset will be eliminated. If set too short, it can cause overshoot or oscillation. To turn off the integral time, set
b5-03 = 0.00.
 b5-04: Integral Limit Setting
Sets the maximum output possible from the integral block. Set as a percentage of the maximum frequency (E1-04).
Note: On some applications, especially those with rapidly varying loads, the output of the PID function may show a fair amount of
oscillation. To suppress this oscillation, a limit can be applied to the integral output by programming b5-04.
 b5-05: Derivative Time (D)
Sets the time the drive predicts the PID input/PID feedback signal. 
Longer time settings will improve the response but can cause
vibrations. Shorter settings will reduce the overshoot but
also reduce the controller responsiveness. D control is disabled by setting b5-05 to zero seconds.
No. Parameter Name Setting Range Default
b5-01
<1> The setting range for the CIMR-A4A0930 or CIMR-A4A1200 is 0 to 4.
PID Function Setting 0 to 8 <1> 0
No. Name Setting Range Default
b5-02 Proportional Gain Setting (P) 0.00 to 25.00 1.00
No. Name Setting Range Default
b5-03 Integral Time Setting (I) 0.0 to 360.0 s 1.0 s
No. Name Setting Range Default
b5-04 Integral Limit Setting 0.0 to 100.0% 100.0%
No. Name Setting Range Default
b5-05 Derivative Time (D) 0.00 to 10.00 s 0.00 s

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