Major error 1201 occurs when the absolute position is erased.Execute the home position return after checking the batteri

Alarm 2149 (Main circuit OFF warning) occurs when the servo system turns ON with no power supplied to the servo main cir

Set "[Pr.3] Movement amount per rotation" to "36000000(360.00000degree)", and "[Pr.4] Unit magnification" to "1".The sam

Select [Online] -> [Read from PLC] from the menu and check "Device Memory" in the file list in the window and then ex

It depends on the setting of servo parameter "[PA03] Absolute position detection system" whether the HPR request flag ("

1. Data backup using an optional battery Built-in RAM data and clock data of a programmable controller are held by usin

Scan time displayed on GX Works2 is the maximum scan time of the monitor target programmable controller CPU. To check cu

FX5-4AD and FX5-4DA are intelligent function Modules. ・Connect to the right side of the CPU Module. ・Control via buffer

You can check the processing time and scan time of the program currently being executed in "Program List Monitor". [Onl

The following shows the setting value details.• 1 to 600: Positioning data No.• 7000 to 7004: Block start designation• 9

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FAQ within [ Controllers ]

1021-1030 of Total 1123

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Major error 1201

Major error 1201 occurs when the absolute position is erased.Execute the home position return after checking the batteries of the Motion CPU module and the s... More Details >>
- No：23561
- Release Date：2018/09/14 15:09
- Category： Q17nDSCPU , Q17nDCPU , Q170MSCPU , Q170MCPU , Q17nHCPU , Q17nCPUN
Alarm 2149

Alarm 2149 (Main circuit OFF warning) occurs when the servo system turns ON with no power supplied to the servo main circuit. Review the condition of servo O... More Details >>
- No：23566
- Release Date：2018/09/14 15:09
- Category： Q17nDSCPU , Q17nDCPU , Q170MSCPU , Q170MCPU , Q17nHCPU , Q17nCPUN
Electronic gear

Set "[Pr.3] Movement amount per rotation" to "36000000(360.00000degree)", and "[Pr.4] Unit magnification" to "1".The same result is obtained by setting "3600... More Details >>
- No：23586
- Release Date：2018/09/14 15:09
- Category： RD77MS , RD77GF , FX5SSC , QD77MS , QD77GF , LD77MS , LD77MH , QD75MH , QD75M
How to read the device memory in GX Works2

Select [Online] -> [Read from PLC] from the menu and check "Device Memory" in the file list in the window and then execute PLC read. More Details >>
- No：22621
- Release Date：2018/09/03 17:29
- Category： MELSEC-Q Series
HPR request flag

It depends on the setting of servo parameter "[PA03] Absolute position detection system" whether the HPR request flag ("[Md.31] Status": b3) turns ON or not.... More Details >>
- No：23617
- Release Date：2018/09/14 15:09
- Category： QD77MS , QD77GF , LD77MS , LD77MH , QD75MH , QD75M
Types of data backup methods (FX3G series)

1. Data backup using an optional battery 　Built-in RAM data and clock data of a programmable controller are held by using an optional battery. 　The life of... More Details >>
- No：24701
- Release Date：2019/02/27 08:59
- Category： MELSEC-F Series , Engineering Software , Main Unit , Accessories
Scan time while operation of a programmable controller CPU is being monitored using GX Works2

Scan time displayed on GX Works2 is the maximum scan time of the monitor target programmable controller CPU. To check current scan time, monitor the data in... More Details >>
- No：24779
- Release Date：2019/02/27 15:58
- Category： MELSEC-F Series , Engineering Software , Main Unit
Regarding differences between Analog Module and Analog Adapters

FX5-4AD and FX5-4DA are intelligent function Modules. ・Connect to the right side of the CPU Module. ・Control via buffer memory (BFM). ・It also supports ... More Details >>
- No：44347
- Release Date：2024/03/27 15:21
- Category： MELSEC iQ-F Series , Analog
How to check the scan time with GX Works3

You can check the processing time and scan time of the program currently being executed in "Program List Monitor". [Online] -> [Monitor] -> [Program... More Details >>
- No：22458
- Release Date：2018/09/03 17:28
- Update：2018/09/19 11:51
- Category： MELSEC iQ-R Series
Positioning start No.

The following shows the setting value details.• 1 to 600: Positioning data No.• 7000 to 7004: Block start designation• 9001: Machine home position return• 90... More Details >>
- No：23597
- Release Date：2018/09/14 15:09
- Category： RD77MS , RD77GF , FX5SSC , QD77MS , QD77GF , LD77MS , LD77MH , QD75MH , QD75M

1021-1030 of Total 1123

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