YASKAWA A1000 HHP Programming Manual page 120

1.7 H: Terminal Functions
Setting 8: Stall Prevention Level
Allows an analog input signal to adjust the Stall Prevention level. Figure 1.79 shows the setting characteristics. The drive will
use the lower value of the Stall Prevention level set to L3-06 or the level coming from the selected analog input terminal.
Stall Prevention Level during Run
100%
30%
Analog Input Level
0 30% 100%
Figure 1.79 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
Supplies the PID feedback value. This setting requires PID operation to be enabled in b5-01. Refer to PID Feedback Input
Methods on page 34.
Setting C: PID Setpoint
Supplies the PID setpoint value and makes the frequency reference selected in parameter b1-01 no longer the PID setpoint.
PID operation to be enabled in b5-01 to use this setting. Refer to PID Setpoint Input Methods on page 34.
Setting D: Frequency Bias
The input value of an analog input set to this function will be added to the frequency reference. This function can be used with
any frequency reference source.
Setting E: Motor Temperature
In addition to motor overload fault detection oL1, it is possible to use a Positive Temperature Coefficient (PTC) thermistor
for motor insulation protection. Refer to Motor Protection Using a Positive Temperature Coefficient (PTC) Thermistor on
page 130 for a detailed explanation.
Setting F, 1F: Through Mode
When set to F or 1F, an input does not affect any drive function, but the input level can still be read out by a PLC via a
communication option or MEMOBUS/Modbus communications.
Setting 10, 11, 12, 15: Forward, Reverse, Regenerative, General Torque Limit (OLV, CLV, AOLV/PM, CLV/PM)
Note: PM motor control modes are not available in A1000 HHP drive models.
These functions set a torque limit using analog inputs for different operating conditions. Refer to L7: Torque Limit on page
151 for details.
Setting 13: Torque Limit Using Torque Reference/Speed Limit
Sets the torque reference (when in Torque Control) or the torque limit (when in Speed Control). Refer to Setting the Torque
Reference, Speed Limit, and Torque Compensation Values on page 68 for details.
Setting 14: Torque Compensation
Sets a torque compensation value when using Torque Control. Refer to Setting the Torque Reference, Speed Limit, and
Torque Compensation Values on page 68 for details.
Setting 16: Differential PID Feedback
If an analog value is set for this function, the PID controller is set for differential feedback. The difference of the PID feedback
input value and the differential feedback input value builds the feedback value used to calculate the PID input. Refer to PID
Feedback Input Methods on page 34.
Setting 17: Motor Thermistor (NTC)
Used as a complement or a substitution for oL1. Refer to Motor Protection Using an NTC Thermistor Input on page 132
for details.
Setting 30, 31, 32: DriveWorksEZ Analog Inputs 1, 2, and 3
These settings are for DriveWorksEZ functions. Normally there is no need to change or apply these settings.
120 YASKAWA ELECTRIC SIEP YEAHHP 01B YASKAWA AC Drive – A1000 HHP Programming Manual