9 - 99
9 Details on Servo Parameters
AC Servomotors/Servo Drives 1S-series with Built-in EtherCAT® Communications User’s Manual (I586)
9-11 Power Device-related Objects
9
9-11-2 4320 hex: Main Circuit Power Supply
• Gives the regenerative load ratio.
Sets the main circuit power supply.
• When the main circuit power supply is cut off for the time or more set in the Momentary Hold Time, it
is recognized as the cutoff of the main circuit power supply and the PDS state transitions to Switch on
disabled.
Precautions for Correct Use
When a single-phase power supply is used, the duration of undervoltage for the main circuit
power supply may be several milliseconds longer than the actual interruption time, depending
on the timing or phase at which a momentary power interruption occurs. To avoid false detec-
tion, set a value which is approximately five milliseconds longer than the interruption time.
• Selects whether to enable or disable the phase loss detection function for the 3-phase power supply.
• The model for both single- and/3-phase power supply operates according to the setting.
• This function does not work for the model for the single-phase power supply.
Description of Set Values
Subindex 81 hex: Regeneration Load Ratio
9-11-2 4320 hex: Main Circuit Power Supply
Index
(hex)
Sub-
index
(hex)
Object name
Setting
range
Unit
Default
setting
Data
attri-
bute
Size Access
PDO
map
Complete
access
Modes of
opera-
tion
4320 --- Main Circuit
Power Supply
--- --- --- --- --- --- --- Possible ---
00 Number of
entries
--- --- 82 hex --- 1 byte
(U8)
RO --- --- ---
01 Momentary Hold
Time
1 to
2,000
ms 15 R 4 bytes
(INT32)
RW --- --- ---
02 Phase Loss
Detection Enable
0 to 1 --- 1 R 4 bytes
(INT32)
RW --- --- ---
03 Capacitor Dis-
charge Enable
0 to 1 --- 1 R 4 bytes
(INT32)
RW --- --- ---
81 P-N Voltage --- V --- --- 4 bytes
(INT32)
RO --- --- ---
82 Servo Drive Tem-
perature
--- °C --- --- 4 bytes
(INT32)
RO --- --- ---
Subindex 01 hex: Momentary Hold Time
Subindex 02 hex: Phase Loss Detection Enable
Set value Description
0 Disabled
1 Enabled
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