No, the time cannot be changed during operation. (Note): The following is the modules that support the acceleration/dec

The PCPU READY complete flag (SM500) turns ON when no error is detected in the fixed parameters, servo parameters, and l

Set "[PA04] Function selection A-1" to "_1_ _h: Invalid".(Note): When using Q17nCPUN, set "Servo amplifier parameter 23

Check if 24 VDC power is supplied to "1A7" (pin No.) of the external input signal connector.

Minor error 120 occurs in the following case:The zero pass signal (M2406+20n) is OFF when the re-movement to the home po

Error 3012 occurs when the multiple CPU setting of PLC CPU (CPU No.1) does not match that of Motion CPU. (1) Check if th

Yes. You can check the servo status through the following monitor data. • "[Md.108] Servo status 1" • "[Md.125] Servo st

Error 2035 (Command frequency error) occurs when the servo amplifier detects a command frequency error. (1) When the com

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

The following shows the initialization procedure. (1) Turn OFF the PLC ready flag. (2) Turn ON "[Cd.2] Parameter initia

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MELSEC-Q Series

Positioning Modules(74)

QD75M(29)
QD75MH(33)
QD75H(1)
QD74MH(11)

FAQ within [ MELSEC-Q Series ]

11-20 of Total 59

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Acceleration/deceleration time change

No, the time cannot be changed during operation. (Note): The following is the modules that support the acceleration/deceleration change function. • Q17nDSCP... More Details >>
- No：23570
- Release Date：2018/09/14 15:09
- Category： Q17nDCPU , Q170MCPU , Q17nHCPU , Q17nCPUN
PCPU READY complete flag (SM500)

The PCPU READY complete flag (SM500) turns ON when no error is detected in the fixed parameters, servo parameters, and limit switch output data, which are ch... More Details >>
- No：23564
- Release Date：2018/09/14 15:09
- Category： Q17nDSCPU , Q17nDCPU , Q170MSCPU , Q170MCPU
Servo amplifier forced stop

Set "[PA04] Function selection A-1" to "_1_ _h: Invalid".(Note): When using Q17nCPUN, set "Servo amplifier parameter 23 (Optional function 1)"... More Details >>
- No：23567
- Release Date：2018/09/14 15:09
- Category： RnMTCPU , Q17nDSCPU , Q17nDCPU , Q170MSCPU , Q170MCPU , Q17nHCPU , Q17nCPUN
Input/output signal

Check if 24 VDC power is supplied to "1A7" (pin No.) of the external input signal connector. More Details >>
- No：23594
- Release Date：2018/09/14 15:09
- Category： RD77MS , QD77MS , QD75MH , QD75M
Minor error120

Minor error 120 occurs in the following case:The zero pass signal (M2406+20n) is OFF when the re-movement to the home position is performed by proximity dog,... More Details >>
- No：23559
- Release Date：2018/09/14 15:09
- Category： Q17nDSCPU , Q17nDCPU , Q170MSCPU , Q170MCPU , Q17nHCPU , Q17nCPUN
Error 3012

Error 3012 occurs when the multiple CPU setting of PLC CPU (CPU No.1) does not match that of Motion CPU. (1) Check if the multiple CPU setting of the Multipl... More Details >>
- No：23563
- Release Date：2018/09/14 15:09
- Category： Q17nDSCPU , Q17nDCPU , Q170MSCPU , Q170MCPU , Q17nHCPU , Q17nCPUN
Servo status

Yes. You can check the servo status through the following monitor data. • "[Md.108] Servo status 1" • "[Md.125] Servo status 3" (QD77MS, LD77MS, LD77MH) ... More Details >>
- No：23588
- Release Date：2018/09/14 15:09
- Update：2023/03/09 10:02
- Category： QD77MS , QD77GF , LD77MS , LD77MH , QD75MH , QD75M
Error 2035

Error 2035 (Command frequency error) occurs when the servo amplifier detects a command frequency error. (1) When the command from the controller is the permi... More Details >>
- No：23616
- Release Date：2018/09/14 15:09
- Category： QD77MS , QD77GF , LD77MS , LD77MH , QD75MH , QD75M , QD74MH
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
Parameter initialization

The following shows the initialization procedure. (1) Turn OFF the PLC ready flag. (2) Turn ON "[Cd.2] Parameter initialization request". [QD75M, QD75MH, LD... More Details >>
- No：23602
- Release Date：2018/09/14 15:09
- Category： QD77MS , QD77GF , LD77MS , LD77MH , QD75MH , QD75M

11-20 of Total 59

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