Momentary Power Interruption Hold Time
Setting
Range
Setting Unit Default Set-
ting
When Ena-
bled
Classifica-
tion
Pn509 20 to 50,000 1 ms 20 Immediately Setup
(applies to Speed Control, Position Control and Torque Control)
If the momentary power interruption time is equal to or less than the setting of Pn509,
power supply to the motor will be continued. If it is longer than the setting, power supply
to the motor will be stopped. Power will be supplied to the motor again when the main
circuit power supply recovers.
Pn509
Pn509
Momentary power interruption
Power shut OFF.
Power not
supplied.
Momentary power
interruption > Pn509
Power supplied.
Motor power
status
Setting of
Pn509
Main circuit
power supply
Momentary power interruption
Power supplied.
Power supply
continued.
Momentary power
interruption ≤ Pn509
Motor power
status
Setting of
Pn509
Main circuit
power supply
Momentary power interruption
Setting of Pn509 < Momentary power interruption time
Momentary power interruption
Setting of Pn509 ≥ Momentary power interruption time
Fig. 150: Pn509 - Momentary Power Interruption Hold Time
– If the momentary power interruption time exceeds the setting of
Pn509, the /S-RDY (Servo Ready) signal will turn OFF.
– If uninterruptible power supplies are used for the control power supply
and main circuit power supply, the SERVOPACK can withstand a
power interruption that lasts longer than 50,000 ms.
– The holding time of the SERVOPACK control power supply is approx-
imately 100 ms. If control operations become impossible during a
momentary power interruption of the control power supply, the setting
of Pn509 will be ignored and the same operation will be performed as
for when the power supply is turned OFF normally.
The holding time of the main circuit power supply depends on the output
from the SERVOPACK. If the load on the Servomotor is large and an
A.410 alarm (Undervoltage) occurs, the setting of Pn509 will be ignored.
7.4 SEMI F47 Function
The SEMI F47 function detects an A.971 warning (Undervoltage) and limits the output
current if the DC main circuit power supply voltage to the SERVOPACK drops to a speci-
fied value or lower because the power was momentarily interrupted or the main circuit
power supply voltage was temporarily reduced.
This function complies with the SEMI F47 standards for semiconductor manufacturing
equipment.
You can combine this function with the momentary power interruption hold time (Pn509)
to allow the Servomotor to continue operating without stopping for an alarm or without
recovery work even if the power supply voltage drops.
Sigma-7 Series SERVOPACKs
Application Functions
SEMI F47 Function
| | PROFINET Communications - SIEP YEUOC7P 02A Revision 0 | en | 209
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