Delta CP2000 Series, User Manual

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Chapter 12 Description of Parameter Settings

CP2000
12.2-00-7
 Heavy Load Operation Adjustment
9. Load operating test
B1. Low-frequency loading performance is below 1/10 of rated frequency:
a. If the low-frequency loading performance is insufficient, or the rotor speed is not smooth,
increase Pr.10-31 (Current command of I/F mode).
b. If the low-frequency current is large, decrease Pr.10-31 (Current command of I/F mode).
B2. Test the with-load accelerating performance:
When the motor operates in 1/10 of rotor speed and above, if the speed cannot follow the
acceleration time during accelerating, or the current stalls, increase Pr.07-38 (PMSVC
voltage feedback forward gain).
10. Stability test at constant speed operation: if the motor operates stably at constant speed
a. If the motor output rotor speed presents periodic low-frequency wave, increase Pr.10-34
(PM sensorless speed estimator low-pass filter gain), or increase Pr.10-32 (PM FOC
sensorless speed estimator bandwidth).
b. If the output frequency reflects high-frequency vibration, decrease Pr.10-34 or decrease
Pr.10-32.
12-2-2-1 PMSVC Related Parameters
Refer to Section 12-1 Description of Parameter Settings for more details.
Parameter Description Unit Default
Setting
Range
Pr.07-24 Torque command filter time sec. 0.5 0.001–10
Pr.07-26 Torque compensation gain N/A 0 0–5000
Pr.07-38 PMSVC voltage feedback forward gain N/A 1.0 0.5–2.0
Pr.10-31 I/F mode, current command % 40 0–150
Pr.10-32 PM FOC sensorless speed estimator bandwidth Hz 5.00 0.00–600.00
Pr.10-34
PM sensorless speed estimator low-pass filter
gain
N/A 1.00 0.00–655.35
Pr.10-39
Frequency point to switch from I/F mode to PM
sensorless mode
Hz 20.00 0.00–599.00
Pr.10-40
Frequency point to switch from PM sensorless
mode to V/F mode
Hz 20.00 0.00–599.00
Initial Angle Estimating Parameters
Pr.10-42 Initial angle detection pulse value N/A 1.0 0.0–3.0
Pr.10-51 Injection frequency Hz 500 0–1200
Pr.10-52 Injection magnitude V
15.0 /
30.0
0.0–200.0
Pr.10-53
PM initial rotor position detection method
0: Disable
1: Internal 1/4 rated current attracting the rotor to
zero degrees
2: High frequency injection
3: Pulse injection
N/A 0 0–3