A2: User Parameters - YASKAWA GA700 Technical Manual

11.2 A: Initialization Parameters
• Minimize the effects of noise.
• Change H3-13 [Analog Input FilterTime Constant] to a range of 0.01 s to 0.10 s.
Startup Current Check
When performing a test run, set L8-41 =1 [High Current Alarm Selection =Enabled] and check the motor current
during startup using U4-13 [Peak Hold Current] and a clamp ammeter with the machine under load and not under
load.
When the motor torque is insufficient during startup and conversely when the motor keeps locking from the lack
of timing between it and the holding brake, it causes extremely significant current to flow. Current flow where it
exceeds 150% of the drive rated current may shorten the service life of parts due to heat stress placed on the IGBT
in the drive. In such a case, readjust the parameters and decrease the load to reduce the current to less than 150%.
To reduce the effects of heat stress, decrease the carrier frequency of the drive to 2.0 kHz to 2.5 kHz for
applications requiring low audible noise.
Overvoltage Suppression Function
If the overvoltage suppression function is used in elevator type applications, there is a risk of rollback and falls.
Set L3-11 = 0 [OV Suppression Function Select = Disabled].
The overvoltage suppression function is designed to prevent an overvoltage trip in a situation in which a braking
resistor is not used with a regenerative load. If the overvoltage suppression function is enabled, the regeneration
torque reference within the drive is automatically controlled during regeneration.
Note:
When using the drive for applications such as high speed elevators with a speed of 2 ms or more and direct drive elevators, or when you
need drives designed for cranes, contact Yaskawa or your Yaskawa sales representative.
■
A1-07: DriveWorksEZ Function Selection
No.
Name
(Hex.)
A1-07 DriveWorksEZ
Function Selection
(0128)
DriveWorksEZ is a simple visual programming tool. DriveWorksEZ is a PC programming tool that lets the user
connect function blocks to customize the drive and add PLC functions.
Note:
• DriveWorksEZ will overwrite drive settings when it uses the multi-function digital I/O and the multi-function analog I/O. Be aware
that setting changes made using DriveWorksEZ will remain after DriveWorksEZ is disabled.
• For more information on DriveWorksEZ, contact Yaskawa or your nearest sales representative.
0 : DWEZ Disabled
1 : DWEZ Enabled
2 : Digital input
Set H1-xx = 9F [MFDI Function Select = DriveWorksEZ Disable]. Programs created with DriveWorksEZ are
enabled when the digital input is OFF, and disabled when the terminal is ON.
■
A1-11: Firmware update lock
No.
Name
(Hex.)
A1-11 Firmware update lock
(111D)
0 : Disable
The update function of the drive firmware is used.
1 : Enable
The update function of the drive firmware is not used.
◆

A2: User Parameters

Users can register frequently used parameters and recently changed parameters here for quick access. Registered
parameters can be displayed in [User Parameters] under the main menu.
590
V/f CL-V/f OLV CLV AOLV
Sets the drive for operation with a program created in DriveWorksEZ.
V/f CL-V/f OLV CLV AOLV
Enables and disables the firmware update function via cloud service.
YASKAWA ELECTRIC SIEP C710617 01B YASKAWA AC Drive GA700 Technical Manual
Description
OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
Description
OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
Default
(Range)
0
(0 - 2)
Default Setting
(Range)
0
(0, 1)