8-62
8-7 Special Parameters
OMNUC G5-SERIES AC SERVOMOTOR AND SERVO DRIVE USER'S MANUAL
8
Parameter Details
Set overspeed detection level upon generation of immediate stop alarm.
The overspeed detection level setting will be 1.2 times the maximum motor rotation speed if this
parameter is set to 0.
This parameter should normally be set to 0. The setting should be changed only when it is
necessary to lower the overspeed detection level.
The set value of this parameter is limited to 1.2 times the maximum motor rotation speed.
Explanation of Set Values
Set this parameter to 1.
Explanation of Set Values
Set the EEPROM write conditions when the front panel parameter is changed.
Set initialization time after power supply ON to the standard 1.5 seconds plus some.
Finely adjust the ON width of encoder phase-Z signal output.
This is enabled when the phase-Z output and phase-A output are not synchronized (Pn011/Pn503
× Encoder resolution is not a multiple of 4) due to the encoder dividing ratio setting.
The set value of Pn619 and the ON width of phase-Z output are related as follows:
Phase-Z output width [s] = 30/(Pn619 × Motor speed [r/min])
Pn615
Overspeed Detection Level Setting at Immediate Stop
Setting
range
0 to 20,000 Unit r/min
Default
setting
0
Power OFF
and ON
−
Pn616
Absolute Interface Function Selection
Setting
range
0 or 1 Unit −
Default
setting
1
Power OFF
and ON
Yes
Set value Explanation
0 Disabled
1 Enabled
Pn617
Front Panel Parameter Write Selection
Setting
range
0 or 1 Unit −
Default
setting
0
Power OFF
and ON
Yes
Set value
Explanation
0 EEPROM write not performed when a parameter is changed from the front panel
1 EEPROM write performed at the same time
Pn618
Power Supply ON Initialization Time
Setting
range
0 to 100 Unit 0.1 s
Default
setting
0
Power OFF
and ON
Yes
Pn619
Encoder Phase-Z Setting
Setting
range
0 to 32,767 Unit Pulse
Default
setting
0
Power OFF
and ON
Yes
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