1.7 H: Terminal Functions
YASKAWA ELECTRIC SIEP C710606 10A YASKAWA AC Drive - V1000 PRELIM. Programming Manual 179
Parameter Details
1
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. Also refer to PID Feedback Input Methods on page 61.
Setting C: PID Set Point
An input set for this function supplies the PID set point value. The frequency reference
selected in parameter b1-01 no longer becomes the PID set point. This setting requires PID
operation to be enabled in b5-01. Also refer to PID Setpoint Input Methods on page 61.
Setting E: Motor Temperature
In addition to or in place of the oL1 (motor overload) fault detection, it is possible to use a
PTC (Positive Temperature Coefficient) thermistor for motor insulation protection. Refer to
Motor Protection Using PTC a Signal on page 189 for detailed explanations.
Setting F: Not Used
Any analog input that is not used should be set to F. When set to “F”, an input does not affect
any drive function but the input level can be read out by a PLC via a communication option
or MEMOBUS/Modbus communications (through mode). This way drive analog inputs can
be used to read out external sensor values if there is a lack of PLC analog inputs.
Setting 10/11/12/15: Positive / Negative / Regenerative / General Torque Limit (OLV only)
These functions make it possible to limit the torque reference with an analog input. The limit
can either be set as a general value for all operation conditions (setting 15) or can be
programmed separately for each operation condition (quadrants 1, 2, 3, and 4). Figure 1.71
shows which limit is applied in each quadrant. The lowest of the values will always be used
as the limit. The value is set as a percentage of the motor rated torque. Refer to L7: Torque
Limit on page 216 for information how torque limits work.
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