NSK M-EGA-15A2301, User Manual

Page: 132 / 237

5.Operation Group 9 Function enabling condition settings
5-67
ID
Description
18
19
Model vibration suppression frequency selecting input 1 [MDLFSEL1]
Model vibration suppression frequency selecting input 2 [MDLFSEL2]
■
4 types of model vibration suppression frequency can be used by switching them.
◆
Allocating conditions to enable model control antiresonant frequency selecting input. You can switch
model control antiresonant frequency 1 to 4/ model control antiresonant frequency 1 to 4 by
combination of MDLFSEL1 with MDLFSEL2.
MDLFSEL1: Model vibration
suppression frequency
selecting input 1
Invalid Valid Invalid Valid
MDLFSEL2: Model vibration
suppression frequency
selecting input 2
Invalid Invalid Valid Valid
↓ ↓ ↓ ↓
Vibration suppression
frequency becoming valid
Model control
antiresonant
frequency 1
Group 3 ID02
Model control
resonant
frequency 1
Group 3 ID03 Model control
antiresonant
frequency 2
Group 4 ID50
Model control
resonant
frequency 2
Group 4 ID51 Model control
antiresonant
frequency 3
Group 4 ID52
Model control
resonant
frequency 3
Group 4 ID53 Model control
antiresonant
frequency 4
Group 4 ID54
Model control
resonant
frequency 4
Group 4 ID55
27
Velocity loop proportional control switching function [VLPCON]
■
You can switch between velocity loop PI control and P control
◆
Enabling velocity loop proportional control switching function (VLPCON)enables swathing.
◆
Allocating conditions to enable velocity loop proportional control switching function. When VLPCON
signal is enabled, the control is switched to proportional control.

PI control (proportional
･
integral control)
･･
Velocity loop proportional gain (KP)/ integral
time constant (TPI)

P control (proportional control)
･･････
Velocity loop proportional gain (KP)
✔ Switching to proportional control decreases servo gain, and then servo system becomes stable.
✔
When setting velocity loop integral time constant (TVI) to 1000.0ms, the operation is in the state
integration function is disabled (proportional control), so you do not need to use this function.
35
Minor vibration (oscillation) suppression function [FBHYST]
■
Minor vibration suppression function to suppress mechanical system-induced vibration due to ±1-pulse
width modulation of encoder is enabled when motor stops.
◆
The conditions for enabling minor vibration suppression function are assigned. The minor vibration
suppression function becomes enabled. If the FBHYST signal is valid.
40
External trip input function [EXT-E]
■
Contact input such as external thermal device can be taken in driver, and then output as an alarm
(AL55).
◆ Allocating conditions to enable external trip function. When EXT-E signal is enabled, this becomes
alarm (AL55).
41
Forced discharge function [DISCHARG]
■
This is to forcedly discharge the voltage charged in the capacitor for main circuit power supply inside of
driver, when main circuit power supply is being turned off. Note that discharging cannot be performed
when main circuit power supply is being turned on.
◆ Allocating conditions to enable forced discharge function. When DISCHARGE signal is enabled,
capacitor is forcedly discharged.
42
Emergency stop function [EMR]
■
This can urgently stop motor by taking unit emergency signal into the driver.
◆
Allocating conditions to enable unit emergency signal. When EMR signal is enabled, motor urgently
stops.