Delta VFD4A8ME21ANSAA User Manual

Chapter 12 Description of Parameter SettingsME300
12.1-02-19
 Example:
When Pr.02-51 displays 0009h (hex) (that is, the value is 9 (decimal) and 01001 (binary)), it
means that Relay and MO1 are ON.
Display the Frequency Command Executed by the External Terminal
Default: Read only
Settings Read only
 When you set the source of the Frequency command as the external terminal, if Lv or Fault
occurs, the external terminal Frequency command is saved in this parameter.

Level of Preheating DC Current
Default: 0
Settings 0–100 %
 This parameter controls the level of the preheating DC current input to the motor. The percentage
of the preheating DC current equals to the percentage of motor rated current (Pr.05-01).
Therefore, when you set this parameter, increase the level slowly to reach the desired preheating
temperature.
 Related parameters: 02-73 Preheating DC Current Duty Cycle, 02-13 and 16 Multi-function
Output Relay 69: Indication of Preheating Function, 02-01–05 Multi-function Input Terminal 69:
Auto-activate preheating function.

Preheating DC Current Duty Cycle
Default: 0
Settings 0–100 %
 This parameter is to set up the duty cycle of the preheating DC current input to the motor. 0–
100% corresponds to 0–10 sec. If the setting is 0%, there is no output current from the motor
drive. If the setting is 100%, there is continuous output DC current. For example, when the
setting of this parameter is 50%, the cycle time is the time spent to input current to motor for 5
seconds and stop inputting for 5 seconds. When MI #69 is enabled, this parameter operates
periodically with MI#69 until the motor drive starts to run the motor or until MI#69 is disabled.
 Preheating function works only when the setting value for Pr.02-72 and Pr.02-73 are not 0.
 When MI=69 (auto-activate preheating function) is enabled, MI=69 controls the start and stop of
preheating function.
 When MI=69 is DISABLED, the preheating function starts after:
The motor drive stops its first operation. The motor drive cycles the power.

Delta VFD4A8ME21ANSAA Specifications

General

Brand	Delta
Model	VFD4A8ME21ANSAA
Category	DC Drives
Language	English