YASKAWA E-V Series User Manual page 85

4 Operation
4.3.6 Force Limit Function for Low Power Supply Voltage for Main Circuit (SEMI-F47 Function)
Execution Independently with SERVOPACK
The force is limited in the SERVOPACK in response to a low-voltage warning.
The SERVOPACK resets the limited force in the set time when the low-voltage warning is cleared. Pn008.1 is
used to specify whether the function is executed with the host controller or independently with the SERVO-
PACK.
Power supply for
main circuit
Bus voltage for
main circuit
SERVOPACK
Low-voltage
warning is detected
Force limit
(2) Related Parameters
Pn008
Force Limit at Main Circuit Voltage Drop
Pn424 Setting Range
Release Time for Force Limit at Main Circuit
Voltage Drop
Pn425 Setting Range
0 to 1000
∗
The setting unit is a percentage of the rated force.
4-12
280 V
200 V
165 V
The force limit
is started.
Setting value
of Pn424
0%
Parameter
A main circuit low voltage warning is not detected.
n. 0
[Factory setting].
A main circuit low voltage warning is detected, and
n. 1
the host controller limits the force.
A main circuit low voltage warning is detected, and
n. 2 the SERVOPACK independently limits the force
using Pn424 and Pn425.
Setting Unit
0 to 100
1%
Setting Unit
1 ms
Interruption time for the power
supply of the main circuit
The bus voltage for the main circuit is
lowered slowly, because the output force
is limited.
Meaning
Speed
Factory Setting
*
50
Speed
Factory Setting
100
The bus voltage for the main
circuit increases after the
power supply is restored.
Setting value of Pn425
When Enabled
After restart
Position
Force
When Enabled
Immediately
Position Force
When Enabled
Immediately
Classification
Setup
Classification
Setup
Classification
Setup