Tuning; Dc Injection - Magnetek Impulse G+ series 4 Instruction Manual

Tuning

• D1 DC Injection Braking
• D2 Motor Slip Compensation
• D3 Torque Compensation
• D4 Automatic Speed Regulator (ASR) Tuning
• D5 Torque Control
• D8 Dwell Function
• D9 S-Curve Acceleration/Deceleration
• D10 Carrier Frequency
• D11 Hunting Prevention

DC Injection

With decel to stop enabled (B03-03=0), upon removal of the run command, the IMPULSE
VG+ Series 4 drive controls motor deceleration according to the Decel Time setting (B05-02), until
output frequency reaches the DC Injection Braking Start Frequency (D01-01 setting). Then the
®
IMPULSE
to the motor. The effective DC injection time and current should be set to provide adequate stopping
without excessive motor heating. The DC injection voltage is determined by the DC injection braking
current and motor impedance.
Parameter
D01-01
D01-02*
D01-03
D01-04
* Not available in the Flux Vector control method (A01-02 = 3).
•G+ and VG+ Series 4 frequency output is turned off and DC injection current is applied
Table 5-44: DC Injection Parameter Settings
Display
DCInj Start Freq
DCInj Current
DCInj Time@Start
DCInj Time@Stop
Figure 5-17: DC Braking Sequence
Function
DC Injection Braking Frequency
Start
Sets the DC Injection Braking
current as a percentage of the
drive rated current.
DC Injection Braking Time
DC Injection Braking Time at Stop 0.00–10.00 sec
IMPULSE®•G+ & VG+ Series 4 Instruction Manual – February 2017
®
•G+ and
Range Default
0.0–10.0 Hz 0.5
0–100% 50
0.00–10.00 sec 0.00
0.05
5-55