YASKAWA A1000 Technical Manual page 261

Setting 5: Accel/decel time gain
Adjusts the gain level for the acceleration and deceleration times set to parameters C1-01 through C1-08.
The acceleration time used by the drive is calculated by multiplying the this gain level to C1- as follows:
C1- 

Accel/decel time gain = Drive accel/decel time
Figure 5.83
Setting 6: DC Injection Braking current
The current level used for DC Injection Braking. Set as a percentage of the maximum output current using.
Figure 5.84
Figure 5.84 DC Injection Braking Current Using an Analog Input Terminal
Setting 7: Torque Detection level
Using this setting, the overtorque/undertorque detection level for torque detection 1 (L6-01) can be set by an analog
input. The analog input will replace the level set to L6-02. An analog input of 100% (10 V or 20 mA) will set a torque
detection level equal to 100% drive rated current/motor rated torque. Adjust the analog input gain if higher detection
level settings are required.
Setting 8: Stall Prevention level
This setting allows an analog input signal to adjust the Stall Prevention level.
characteristics. The drive will use either the Stall Prevention level set to L3-06 or the level coming from the analog input
terminal that has been selected, whichever value is lower.
Figure 5.85
Figure 5.85 Stall Prevention During Run Using an Analog Input Terminal
Setting 9: Output frequency lower limit level
The user can adjust the lower limit of the output frequency using an analog input signal.
Setting B: PID feedback
An input set for this function supplies the PID feedback value. This setting requires PID operation to be enabled in b5-01.
Refer to PID Feedback Input Methods on page
Setting C: PID setpoint
An input set for this function supplies the PID setpoint value, and the frequency reference selected in parameter b1-01 is
no longer the PID setpoint. PID operation to be enabled in b5-01 to use this setting.
Methods on page 168.
YASKAWA ELECTRIC SIEP C710616 27G YASKAWA AC Drive A1000 Technical Manual
100%
Acceleration/deceleration gain from 1 to 10 V
50%
20%
10%
0 5 V 10 V
1V 2V
Figure 5.83 Accel/Decel Time Gain with Analog Input Terminal
DC Injection Braking Current Level
100%
Drive Rated
Current
Refer to L6: Torque Detection on page 291
Stall Prevention Level during Run
100%
30%
0 30%
169.
(10 V)
× 10 (%)
=
Input Voltage (V)
0 10 V
(4) (20 mA)
for details on torque detection.
Figure 5.85
Analog Input Level
100%
5.7 H: Terminal Functions
shows the setting
Refer to PID Setpoint Input
5
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