Delta VFD040C43A-21 User Manual

Chapter 12 Descriptions of Parameter SettingsC2000 Plus
12.1-10-15
 This parameter is valid only when the setting of Pr.07-12 (Speed Tracking during Start-up) = 0.
 When the motor is in static state at start-up, this increases the accuracy when estimating angles.
In order to put the motor in static state, set the three-phase drive output to 0V to the motor. The
Pr.10-49 setting time is the length of time when three-phase output at 0V.
 It is possible that even when you apply this parameter, the motor cannot go into the static state
because of inertia or some external force. If the motor does not go into the static state in 0.2
seconds, increase this setting value appropriately.
 If Pr.10-49 is too high, the start-up time is longer. If it is too low, then the braking performance is
weak.

10-50
Reverse Angle Limit (Electrical Angle)
Default: 10.00
Settings 0.00–30.00 degree
 When the drive is running forward, if a sudden reverse run occurs and the reverse angle exceeds
the setting for Pr.10-50, then a SdRv error occurs.
 This parameter is valid only when the setting of Pr.07-28 =11 (enable textile machine).
 This parameter limits the reverse angle if the estimated tolerance of start-up angle detection is
larger, and causes a reverse run of the motor.
 Decrease the parameter setting to prevent large reverse angle. Increase the parameter setting
if you have a higher tolerance. If the load is too large at this moment, it may cause oc.

10-51
Injection Frequency
Default: 500
Settings 0–1200 Hz
 This parameter is a high frequency injection command in IPM sensorless control mode and
you usually do not need to adjust it. If a motor’s rated frequency (for example, 400 Hz) is too
close to the frequency setting for this parameter (that is, the default of 500 Hz), it affects the
accuracy of the angle detection. Refer to the setting for Pr.01-01 before you adjust this
parameter.
 If the setting value for Pr.00-17 is lower than Pr.10-51 × 10, then increase the frequency of the
carrier wave.
 Pr.10-51 is valid only when it's in IPM sensorless control mode or Pr.10-53 = 2.
 If Pr.00-11 = 8 (SynRM sensorless), then the default becomes 400 Hz.

10-52
Injection Magnitude
Default:
Settings 0.0–200.0V
230V models: 0.0–100.0 V 15.0
460V models: 0.0–200.0 V 30.0
575V models: 0.0–200.0 V 30.0
690V models: 0.0–200.0 V 30.0
 The parameter is the magnitude command for the high frequency injection signal in IPM
Sensorless control mode.

Delta VFD040C43A-21 Specifications

General

Brand	Delta
Model	VFD040C43A-21
Category	DC Drives
Language	English