Restart Options - Omron RX Series User Manual

Restart Options

• The inverter provides the following restart options. Select one that is suited to your application.
[00: 0-Hz restart]
Forces the inverter to restart at 0 Hz. Note that the inverter restarts suddenly while in a free-run state.
Use this setting if the motor stops shortly due to the load.
[01: Frequency matching restart]
Causes the inverter to restart by recognizing the frequency from the voltage between the motor
terminals during free-run stop and adjusting to it. The inverter restarts at 0 Hz if it cannot fully
recognize the voltage between the motor terminals.
Use this setting if the inverter is in a free-run stop for a few seconds.
[02: Frequency pull-in restart]
Causes the inverter to restart by outputting the starting frequency set in the Starting Frequency
Selection at Frequency Pull-in Restart (b030) to the motor in a free-run stop state and re-accelerating
when the Frequency Pull-in Restart Level (b028) is reached.
This enables a smooth restart independent of the voltage between motor terminals.
Use this setting when the inverter is in free-run state for a long time due to a large load inertia.
• For restart operation examples, refer to 5-8-2 Restart after Resetting on page 5-48.
Input Power Supply Phase Loss Protection Selection
Use this function to cause the inverter to trip when a phase loss is detected in the inverter input power
supply.
Parameter No.
b006
*1 The default data was changed from the previous model.
Note The inverter will trip if it is in a phase-loss state for approximately 1 s or more (due to the Input phase loss
protection (E14) error).
A phase loss will cause the following, which may result in an inverter malfunction.
• The ripple current in the main capacitor will increase, which remarkably reduces the life
expectancy of the inverter.
• Under a loaded condition, the inverter's internal converter may be damaged.
High-function General-purpose Inverter 3G3RX-V1 User's Manual (I578-E1)
Function name
00: Disabled
Input Phase Loss
Protection Selection
01: Enabled
7 Detailed Functions
Data Default data
*1
01
Unit
–
7
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