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Showing results for tags 'inverter servo drive syncrhonization speed position'.
Found 204 results
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PowerFlex755 is running always with the same Frequency
MatthisJosewski posted a topic in Allen Bradley / Rockwell Automation
Hello guys, I am new to this forum and have some problems with my PowerFlex755 EENET frequency inverter. I want to do a point to point positioning task but my problem before I can have a look at the point to point positioning is, that the inverter is always running with 5Hz as soon as I give the start command. Even if I write 0.0 to the reference the output frequency is about 5 Hz. When I change my reference speed to 10.0Hz the output frequency is 12.X (see attached screenshots). . I thought that maybe a min frequency of 5Hz was set somehow, but I couldn't find a parameter and that wouldn't explain why I have 12.X Hz as the output frequency with a setpoint of 10Hz. And an other question, have someone experience with positining tasks with a PowerFlex755 and Point to Point positioning? I think in the first step it is not working because of the problem I described above, but maybe someone have a programming example or could tell me where I can find some information about how to use the Point to Point positioning? Thank you for advice! Matthis Josewski -
I've setup an Omron NX102 PLC with two CIF105 cards communicating with about 40 MX2 VSD's (20 on each card). Generally it works pretty well. I used the attached document to set up the devices. The links on the document to the examples don't work, so I'm unsure if I missed anything. My problem is that every day, sometimes multiple times a day the communication seems to die. i.e I either loose the output to the VSD and nothing will run. Or it all runs but I loose the feedback, as in I get no running signal even though the drives are running causing a fault in my program. I'm at a bit of a loss as to what might be causing the issue. To resolve it, I put the PLC into program mode and back into run mode and everything is happy again. Has anyone had a similar issue or offer any advise? MX2_Control_Serial.pdf
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I'm using a Mitsubishi FX5UC PLC to control some Minas A6S servo drivers. Previously I've always used a pulse train and discrete IO (it's the way things have always been done here). This time I'd like to use Modbus RTU over RS-485. I'm pretty confident that the RS-485 wiring is correct because I'm getting an exception code back from the driver rather than the messages from the PLC timing out. I've been reading the manual called Operating Instructions (Overall) for the MINAS A6 series, particularly the communications supplement. I may be misunderstanding this, but the Modbus implementation appears to be non-standard. Specifically, in Schneider-standard Modbus, after the slave ID (or in this case, axis ID), the next part of the message is a function code that specifies the type of command; 01h is to read a coil, 05h is to write to a coil, and so forth. Whereas the Panasonic manual describes a different list of commands - to read the driver serial number it would be command 0, mode A, which gets transmitted as A0h. Documentation screenshots are attached. The PLC function ADPRW only works with standard Modbus commands. So what I'm wondering is, am I misunderstanding the communications supplement, or do I need some code specifically for these drivers? If the latter, I would assume that someone has already written a function block or a predefined protocol definition for this hardware. Does one of you fine people have one? Thank you in advance for the help!
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Hi I want to adjust servo motor but I cant .After finishing the tuning error C004 is displayed
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Hello Guys. Is it possible to use an fr-a840 to use in the same time positioning control and also in speed control mode ? In the moment the vfd is in speed control mode. But now i also have to need to stop the conveyor in certain position. It will be a new feature. If its not possible, do i need a hsc ? The speed of the conveyor is 20 m/min and the accuracy should be within 3 mm. Could anybody help me with this. Thanks ahead.
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Hello Guys. Is it possible to use an fr-a840 to use in the same time positioning control and also in speed control mode ? In the moment the vfd is in speed control mode. But now i also have to need to stop the conveyor in certain position. It will be a new feature. If its not possible, do i need a hsc ? The speed of the conveyor is 20 m/min and the accuracy should be within 3 mm. Could anybody help me with this. Thanks ahead.
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Problem with EtherCat communication/ Edit PDO Maps Settings
ArturPL posted a topic in NJ Series / Sysmac Studio
Good morning I have a problem with communication with a Yaskawa inverter, specifically GA500. The device communicates via the EtherCat network. Communication works, but when I want to change my PDO, I have a problem as shown in the screenshot in attachment. The problem occurs when I add the "Operation Command" variable. I have no idea what the problem is. I did not find a library on the Omron website that could support this inverter. thank you in advance for your help. -
PowerFlex 700S Stopping Intermittently
ControlsGuyy posted a topic in Allen Bradley / Rockwell Automation
Hello, I am having an issue with a PowerFlex 700S. This drive controls a travel motor for an overhead hoist. It is periodically not starting after stopping at a programmed point and sometimes stops while traveling to the next station. It does not give any faults or alarms. It is controlled remotely from a CompactLogix through a wireless router to an N-Tron unmanaged switch to the 20-COMM-E adapter. There are some limited manual controls, but the normal operation is a start, stop and speeds all sent from the controller. We have the DI6 set to enable and that does not seem to ever be lost. When this happens the only thing that I can find is the start inhibit parameter shows a bit 8 set high which is a start request present. I can see the PLC has already sent the start signal. I can put the machine in manual mode then cycle back to auto and the drive takes off. The only thing I can see changing while doing this is the start command is dropped and then sent again. I have changed the comm adapter as originally I had thought this was an issue with comms, but now I am skeptical as I have it set to fault and stop if a comms loss is detected. I am also able to connect to this drive and others on the same hoist through the wireless comms, so I feel better about the comms path. What causes this start inhibit bit 8 to become active? Does this seem to be a communication issue or a potentially a bad drive? -
Hi, Do anyone knows what is the meaning of the following inverter nameplats characters ? FR-A840-00023-E2-60 Mainly the beginning with the FR-A. Thanks ahead.
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How to change encoder reading from positive to negative
automationtalk posted a topic in NJ Series / Sysmac Studio
Does anyone know how to change the reading on Omron servo motor reading from negative to positive? The encoder is reading negative values when it is moving in the forward direction. I am using 1S servo on NX1P2 controller on Sysmac studio software. Please suggest. -
Does any one know any instruction that rotate the 1S Servo Motor continuously with angle(0 to 360) and velocity control ? https://forums.mrplc.com/index.php?/topic/35459-omron-g5-servo-drive-rotary-mode/#comment-165564 Above link may be quite close to what i want. But I have no idea how to set it up Simon
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I have a test station to test MR-J2S Servo drivers, I am looking for something unique in the drivers to be able to save data about that test. First thought was the SN, but i am not seeing any way to pull serial number from the driver. Only found it on the side of driver and really don't want people having to type it in , cause usually they type in the wrong numbers. Does anyone know of a way to get the serial number out of the driver? or at least where it could be found? Or any other unique identifier in these drivers?
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Hi, I have a servo coil feeder. It has HMI, PLC, MR-JE-100A Servo drive, and motor. Recently, smoke came out of drive. One capacitor was almost split. 400 V, 680 uF. This is right after 3-P rectifier. I believe there was some sort of over voltage. I found the capacitor from China, and installed. HMI and PLC are sending power and signals, but no sign of activity at the drive. DC bus is alive, but can't pass beyond relay after bridge rectifier. There is no power at control circuit either. No service manual. I ordered another same drive. Do I need to set anything on the drive, or HMI and PLC has all the necessary signal to drive the motor? NC+servo+Roll+Feeder+manual (2).pdf
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Hello, I am beginner at servo and its driver. i am using MRJ4A driver and HG SR102 servo motor. i want to make my servo stop or alarm when the load is over the maximum load that i set by my self. what parameter should i set to limiting servo load even if the servo motor strength enough to lift the load.?
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Can anyone tell me how to check fault history in Allen Bradley powerflex 40 drive?
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Hello Experts We have a machine with Mitsubishi Servo MR-JE-2008 With PLC Fx 5U & HMI GS2107 Yesterday we altered PLC by adding a row with input and timer & used this Input in next rung for weld start Although we did not find any linkage but found "'Screen error Ok"' on HMI and after pressing Ok, HMI screen getting blank. We restored original PLC backup - PLC in Run Mode still ""Screen error Ok"" on HMI Via GT designer 3, we have loaded HMI backup, now HMI screen is OK and normal Getting Ab on Mitsubishi drive - we feel it is not an error but due to this we are unable to rotate motor although other functions like door open/close etc Ok In PLC, online mode, we are finding Servo in ON but unable to understand Ab on Drive and may be due to this, unable to rotate motor Please refer to attached HMI, PLC & Servo Backup Request advice HMI BACK UP.GTX PLC BACKUP.gx3 Flange Welding_Tag Line Servo Backup.mrc2
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Dear all, I have an Omron inverter 3G3TC-AB004, which apparently there is not much information about it online. I have successfully connected this inverter with Modbus, and able to change some of its parameters from Modbus Poll, yet I still haven't found the address for the Start and Speed Command. I've tried to set the frequency from modbus but unfortunately it's a read only register. Is it possible to control this inverter from modbus or it's only useful for monitoring the inverter status? Thanks in advance.
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Hi Everyone. I have been tasked with changing out an older Flex Drive servo drive to a more modern Micro Flex drive in a machine that has an Omron CQM1H-CPU51 PLC. I'm having a few issues but hope that i can gain some clarity around at least one of the hurdles Im facing from here. Biggest issue for me at this moment is My work hasn't yet purchased a programming lead for this PLC (or even the bits required to make one myself) but i have a feeling the control for the Servo is done via motion control in the PLC. Question here is, if changing from one servo drive to another type, will the motion control code need to be updated to work with the new servo drive? I have very limited experience with motion control itself at this stage so I'm a bit lost when it comes to these sort of details. Regards Kiwi_man82
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Hi. I am using PLC Q06UDV wit QD77GF to operate 11 servos, it is my first time using QD77GF and CC-Link IE Field. I've done the parameter setting. but the qd77gf error lamp started to blinking. i try to check it in cc link ie field diagnostic and didn't find anything except the error lamp blinking in monitor view. then i checked system diagnostic , no error showing up but, only historical error when i started the power of plc. it show D304 error. in manual book the solution are lengthen the operation cycle qd77gf, check the cable, and shorten plc scan time. where can i find this setting sir?
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I am not a drive person (far from it...), but I am working on a project using a number of ACS800 drives. On one drive (only seeing this issue on one drive, as far as I can determine) - when I specify a target speed and also specify maximum acceleration - there is a (significant) difference in terms of the accel time whether I have the drive set to internal speed control vs. external (encoder) control. It takes almost exactly twice as long to get up to speed when set to external vs. internal. (And problem with keeping it set to internal is that we lose accuracy at higher speeds, and also at very low speeds...). The most obvious issue would be a bad or improperly set encoder module, but speed of motor is correct (as measured by tach) whether using internal or external. Encoder module was also swapped for new one, with no difference. The only parameter that I am changing is speed by external encoder vs. internal (I think that it is parameter 98.01). Would anyone have any idea as to what could be causing this? Thanks for any ideas!
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Hello all, I have 3 kinetix 5500 drives connected in series but some how the 3rd drive lost power. all the fuses in the cabinet look good. nothing else is tripped either. any advice is appreciated. thank you
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Hello All, I'm a newbie to Omron programing I have a program where I want to control a stepper motor with 1 plc output "pulse output0" in my program I used PLS2 instruction but when I execute the instruction the motor won't rotate and the plc outputs are off, My wiring is fine, and my plc is CP1E-N40S1DR-A MY 1st output is pulse output 0 Q100.0 and also the driver wiring with the stepper motor is good ( I did a test with siemens plc the motor does work fine ) , what could be the problem? thanks, PLC OUPUT 0 SETTING
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How can I check output to SERVO motors in ladder logic on GX developer.
Redviper posted a topic in Mitsubishi
Hi everyone, I am new to Mitsubishi PLC. I am trying to see from where Run or speed commands goes to Servo. I have MELSEC FX2M-32MT with FX2N-1PG cards for the Servo and I am using GX Developer 8.91v Also, I would like to mention that initially I found out that BATT V light was lit so here what I didi. >I replaced the battery within 20 second while powered ON. Before changing the battery I took upload of the program successfully. >I have cleared PLC memory and re downloaded the program. > Checked Memory addresses M8005 8006 both are Low. Now, when I am trying to run my machine it is not giving output to two Servos while a conveyor operates when started from the HMI so it means program is inside PLC, right ? Program is attached if someone wants to have a look. labeling mc 300322.rar -
Hi there! I'm programming a CP1L-E CPU to control 3 3G3MX2 inverters via Modbus. It got some things right, like the INV002_Refresh_X31 block and its parameters. The thing is, I also want to read some parameters from the inverter using the INV206_ReadParameter block. My doubt is, do I need to be careful so both blocks don't execute at the same time and use the serial port at the same time? Is it better to use one INV206_ReadParameter block for each parameter I want to read? Thanks in advance!
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Hello: Does anyone know the details explanation of the Homing Settings for the Axis? Set the homing operation. 0: Proximity reverse turn/home proximity input OFF 1: Proximity reverse turn/home proximity input ON 4: Home proximity input OFF 5: Home proximity input ON 8: Limit input OFF 9: Proximity reverse turn/home input mask distance 11: Limit inputs only 12: Proximity reverse turn/holding time 13: No home proximity input/holding home input Limit Input referring to Input (I/O) ? How about Proximity Input ? It is confusing with the terms. The manual has no explanation for each of the above selection. Any one? Simon
