Delta EB3000 Series User Manual page 289

Chapter 8 Descriptions of Parameter SettingsEB3000
Models
Settings
Default
 From the table, you see that the PWM carrier frequency has significant influences on the
motor's electromagnetic noise, the AC motor drive heat dissipation, and the motor acoustic
noise. Therefore, if the surrounding noise is greater than the motor noise, lower the carrier
frequency to reduce the temperature rise. Although the motor has quiet operation in the higher
carrier frequency, consider the entire wiring and interference.
 If you set the carrier frequency higher than the defaults in the table above, the motor drive
derates the capacity. See the rated output current derating (%) for different carrier frequencies
in Section 12-5 Derating Curve.
07-31
PWM Mode (Pulse-Width Modulation Mode)

VF
Control Mode
Settings
07-32
Time for Decreasing Torque at Stop

Control Mode
Settings
 When the elevator is stopped and the mechanical brake is engaged, the drive stops output. At
the same time, it produces noise from the reacting force between the motor and the mechanical
brake. Use this parameter to decrease this reacting force and lower the noise.
 Sets the time when torque decreases from 300% to 0%.
3–5 HP 7.5–30 HP
2–15 kHz 2–15 kHz
10 kHz
SVC FOCPG
0: DPWM Mode (Discontinuous Pulse Width Modulation Mode)
1: SVPWM mode (Space-Vector Pulse Width Modulation Mode)
FOCPG
0.000–5.000 sec.
40–100 HP
2–15 kHz
8 kHz 6 kHz
FOCPM
FOCPM
8-07-6
Default: 0
Default: 0.000