Delta ME300 Series

Chapter 12 Description of Parameter Settings
ME300
12.1-00-10
 Heavy duty: over-load rated output current 200% in 3 seconds (150%, 1 minute).
Refer to Pr.00-17 for the setting for the carrier wave. Refer to Chapter 9 Specification or Pr.00-01
for the rated current.
 Pr.00-01 varies with the setting value for Pr.00-16. The default value and maximum for Pr.06-03
and Pr.06-04 also vary with the setting value of Pr.00-16.
 In Normal Duty, the default setting of Pr.06-03 and Pr.06-04 is 120%, and the maximum is 150%.
 In Heavy Duty, the default setting of Pr.06-03 and Pr.06-04 is 180%, and the maximum is 200%.
00-17
Carrier Frequency
Default: 4
Settings Normal load: 2–15 KHz
Heavy load: 2–15 KHz
 This parameter determines the PWM carrier frequency for the AC motor drive.
Models 230V 460V
Models
1–15 HP
[0.75–11 kW]
20–30 HP
[15–22 kW]
1–20 HP
[0.75–15 kW]
25–40 HP
[18.5–55 kW]
Settings Range 2–15 kHz
Normal Duty Default 4 kHz
Heavy Duty Default 4 kHz
 From the table, you see that the PWM carrier frequency has significant influences on the
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.
 When the carrier frequency is higher than the default, decrease the carrier frequency to protect
the drive. Refer to Pr.06-55 for related setting and details.

00-20
Master Frequency Command Source (AUTO, REMOTE)
Default: 0
Settings 0: Digital keypad
1: RS-485 serial communication
input
2: External analog input (Refer to Pr.03-00)
3: External UP / DOWN terminal (multi-function input terminals)
4: Pulse input without direction command (Refer to Pr.10-16 without
considering direction)
7:
Digital keypad potentiometer knob
9: PID controller (With Pr.08-65 = 1)
Note:
HOA (Hand-Off-Auto) function is valid only when you use with MO function
setting 42 and 56 or with KPC-CC01 (optional).
 Determines the master frequency source in the “AUTO, REMOTE “mode. The default is AUTO
mode.
 You can switch the AUTO, REMOTE mode with the keypad KPC-CC01 (optional) or the multi-
function input terminal (MI) to set the master frequency source.