Setting
Function
Page
Setting
Function
Page
1
Frequency Gain
181
10
Forward Torque Limit
181
2
Auxiliary Frequency Reference
181
11
Reverse Torque Limit
4
Output Voltage Bias
181
12
Regenerative Torque Limit
7
Overtorque/Undertorque Detection Level
181
15
General Torque Limit
B
PID Feedback
181
16
Differential PID Feedback
182
C
PID Set Point
181
30
FBDs Analog Input 1
182
E
Motor Temperature (PTC input)
181
31
FBDs Analog Input 2
Setting 0: Frequency Bias
The input value of an analog input set to this function will be added to the analog frequency reference value. Use this
setting also when only one analog input is used to supply the frequency reference.
By default both analog inputs A1 and A2 are set for this function. Using both A1 and A2 at the same time increases the
frequency reference by the total of both inputs.
Example: If the analog frequency reference by analog input A1 is 50% and a bias of 20% is applied by analog input A2,
the resulting frequency reference will be 70% of the maximum output frequency.
Setting 1: Frequency Gain
The input value of an analog input set to this function will be multiplied with the analog frequency reference value.
Example: If the analog frequency reference from analog input A1 is 80% and a gain of 50% is applied from analog input
A2, the resulting frequency reference will be 40% of the maximum output frequency.
Setting 2: Auxiliary Reference
Sets the auxiliary frequency reference when Multi-Step Speed operation is selected.
Refer to Multi-Step Speed
Selection on page 135
for details.
Setting 4: Voltage Bias
Voltage bias boosts the output voltage of the V/f curve as a percentage of the maximum output voltage (E1-05). Available
only when using V/f Control.
Setting 7: Overtorque/Undertorque Level
Overtorque level sets the overtorque/undertorque detection level using the analog input. This works with Torque Detection
Selection 1 (L6-01) and will take the place of the torque detection level set to L6-02. For general Open Loop Vector
Control, this function is based on 100% of the motor rated torque. For V/f Control and PM Open Loop Vector, this function
is based on 100% of the drive rated current.
Refer to L6: Torque Detection on page 200
for details on torque detection.
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 116
.
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.
Refer to PID Setpoint Input
Methods on page 116
.
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 a Positive Temperature
Coefficient (PTC) on page 187
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 5.71
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 202
for
information how torque limits work.
5.7 H: Terminal Functions
SIEP C710606 20 OYMC AC Drive - V1000 User Manual
181
5
Parameter Details
7/16/2008-13:23
