Restart Functions; Restart Settings; Restart After Momentary Power Failure - Omron M1 Series User Manual

8-4

Restart Functions

This section describes the restart-related functions and their operations.
8-4-1

Restart Settings

• Whether or not to perform an auto search start during restart is determined based on the setting of
Motor Starting Mode Auto Search Function Selection (3008Hex-0AHex). If auto search start is not to
be performed, the inverter restarts from the starting frequency as in normal operation.
• If "0: Disable" is set at Motor Starting Mode Auto Search Function Selection (3008Hex-0AHex), then
Power Interruption Restart Wait Time (3008Hex-0EHex) is ignored, and restart is performed from 0
Hz.
• If "2: Enable at normal start and restart after momentary power failure" is selected for Motor Starting
Mode Auto Search Function Selection (3008Hex-0AHex), auto search restart is performed even
when the power is turned ON again.
• Motor Starting Mode Auto Search Function Selection (3008Hex-0AHex) is a parameter that is used
in V/f control (including dynamic torque vector control). Motor Starting Mode Auto Search in Speed
Sensor less Vector Control (3014Hex-44Hex) is used during vector control without sped sensor.
• When vector control with speed sensor is used, restart is performed from the speed detected by the
speed sensor regardless of Motor Starting Mode Auto Search Function Selection (3008Hex-0AHex).
• When using V/f control with speed sensor (including dynamic torque vector control with speed sen-
sor), Motor Starting Mode Auto Search Function Selection (3008Hex-0AHex) is followed.
Parameter No.
3008Hex-0AHex
3014Hex-44Hex
• The details of Starting Frequency Selection at Frequency Pull-in Restart (301FHex-35Hex) are as
follows.
Set value
0
1
2
3
8-4-2

Restart after Momentary Power Failure

This function is used to set operation selection during restart after a momentary power failure.
M1 Series EtherCAT Type User's Manual (I670)
Function name
Motor Starting Mode
Auto Search Function
0: Disable
Selection
1: Enable (Only at restart after mo-
mentary power failure)
Motor Starting Mode
2: Enable (At normal start and restart
Auto Search in Speed
after momentary power failure)
Sensor less Vector
Control
Description
Frequency at which the pow-
er failure occurred
Maximum frequency
Set frequency
Starting frequency
8 Other Functions
Data
Description
Pull-in from frequency when inverters output was
shut off
Pull-in from maximum frequency
Pull-in from currently selected frequency reference
Restart from starting frequency
Default data Unit
0
-
8
1
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