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Showing results for tags 'stepper dynamic speed'.
Found 58 results
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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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- mitsubishi fra840
- encoder
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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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- mitsubishi fra840
- encoder
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PLC : Mitsubishi FX5UJ-60MT/ES Stepper Drive : TROY TR22-2 My problem is, When I Jog it, the Motor will have noise and vibrate(Example at video). I already ask my supplier and they test with their kit, my supplier says suspect the speed may not enough faster, so will have this noise. But when I use PLC to trigger it, still have the same problem. Even I increase the speed, the motor still rotates the same as the video. i changed PLC to Omron CP2E PLC, don't have this kind of issue. Please help me,Thank you WhatsApp Video 2023-05-25 at 12.53.32.mp4
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Hi Guys, I may need some help on how to program the stepper motors by using FX5UJ PLC. This is my first time using it, not too familiar with Mitsubishi PLC. Anyone can share me sample program for reference? I have no clue what command needs to use. I only have experience in Omron Sysmac Studio programming servo using Ethercat. Other than that I can say I'm a new guy in PLC. Thank you very much for helping me.
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hello everyone, I using stepper 17HS2408, microstep driver, modul motion QD75D2, PLC QD3UDV,, i've been trying to use program Absolute in axis 2. When I trigger the command to run absolute program the current value is running but the stepper motor still not moving, is there any suggestion about this?
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- mitsubishi
- plc
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Hey all. Wondering if anyone has an example program they'd be willing to share? Specifically I'm using the 1734-VHSC5/C with a 1769-L18ER-BB1B PLC. All of Rockwell's wonderful information only refers to SLC-500 platform. I'm not trying to do anything terribly fancy, just have a quadrature encoder attached to Channels A & B, then using an output to turn on a valve at 8.0" and turn off at 10.0" Any help would be appreciated.
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Hi guys! I need some help with a powerflex 525 multi speed configuring. I know I have to set the P046 parameter for 2 “DigIn TrmBlk” (source) and P047 parameter for 7 which means present frequency. This is the speed reference. I need 3 speed, so I will use Terminal 5 and Terminal 6. When both terminal is zero then 10 Hz, when terminal 5 is 1 but terminal 6 is 0 then 20 Hz and lastly if both terminal is 1 then it will be 30 Hz. I will adjust the speed with the parameters: A410, A411 and A412. Terminal 2 would be the forward and terminal 3 would be the reverse direction. I think these two can be two PLC digital output trough one-one relay. It will be counted the distance by an encoder. When it reach the target the run command will be released and the motor will be stopped with the decel time1. Also I will connect the S1 and S2 for safety. My question is do I have to connect other wires ? Also do I have to remove the jumper between terminal 11 and 1 ? Am I forget something ? Any comment would be highly appreciated. Thanks ahead.
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hi all, i am tring to program my fx1n on to a bag machine where there is a sensor which checks if the bag length is correct by stopping at the appropriate print also we have given a +5 or -5 to check if the print has moved and if moved to cut the bag from where the signal comes. when the colour sensor is off the plc moves the servo motor the the measure we have given and cuts no problem there but as soon as i give it to check the signal from the colour sensor the plc shows different length when i monitor and also it moves past the print and only stops. it seems its not stopping at the interuption. the colour eye is working we checked. if someone can help it would be greatly appreciated. if you can give a small ladder program which works would be even better :)
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Hi, I have found this forum extremely helpful in the past. I greatly appreciate in advance any help/direction. I am having trouble simply placing/invoking a PRV instruction in CX-Programmer. The program seems to not recognize really any of the High Speed Counter instructions. (working with a CT021. I/O table correct, CJ2H CPU67 PLC rack powered on with all green lights.) Please see attached screenshots for what I mean... the PRV, PRV2, CTBL, SPED, etc instructions just show up red (like they are not understood/recognized PLC instructions/functions) when I try to place in the ladder. There must be something simple that I am not considering. Thanks again for any help. Michael
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Good morning guys, in your experience what is the best way to syncrhonize a motor controlled in speed with an inverter and a motor controlled in position with a servo drive? Let me explaine better what is my situation: I have a belt running normally at a certain constant speed. in some moments, I would like to syncrhonize the speed according to an axis controlled from a servo. the command of a servo specific position target and of course speed and acceleration e deceleration rate. I would like to adjust the belt speed in way to follow as accurately as possible the servo movement. Thanks a lot Andrea
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I searched FX5 manuals and it appears that with the high speed inputs I can run a stepper motor without a motor controller. I have little experience setting up a new system with any motor but have made changes with servo issues. I sent a request for info from my supplier but I still have some questions/requests. 1. Can an FX5U control stepper motors without a motor controller? 2. If not then what Q/R series setup is required 3. Are there any document to help understand? (program examples are welcome) Main objective is to run a sensor head to 3 or 4 specific points using a belt driven linear actuator with a nema motor.
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- stepper motor
- step
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Hello everyone, I have a Kinetix 6000 CIP drive (unwind) and I need to control its speed by a PID controller. I have everything working except the MCD instruction doesn't pick up on the PID output value change. It changes the JOG speed, which I use to control the unwind, if I set the speed manually, which is slow. The PID changes the speed almost continuously. Any suggestions are welcome. This is how I'm attempting to control the speed: A1_r_JogSpeed = PID output value Thank you
- 2 replies
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- kinetix
- kinetix 6000
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I am using fatek FBs 32MN PLC. i need to run the nema stepper motor synchronized with induction motor's speed with some ratio. in my case the speed of stepper motor will change as the speed of induction motor changes its speed, may be many times in a second. Problem is that the speed of stepper will be constant as before until i have to disable and then enable again HSPSO function. is there any solution that i can dynamically change the speed of stepper without disable and enable HSPSO function ?
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Hello Everyone, I am struggling with interfacing Incremental encoder with FX5U PLC, Does anyone have parameter setting and sample program for same. i am unable to fetch counts... Encoder: 500ppr, 24V line drive, A-B phase, PFA datasheet
- 15 replies
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- high speed counter
- encoder
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Hi, I am using FP0R C32T, i use FPWIN GR to make plc program using jog operation instructions F172. I used the program exactly like manual, but still got error code 45? Did anyone know about this thing?
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Hello all I am have FX3G PLC, where i am trying to use SPD function for speed monitoring and controling. currently i am working on software only. I am using x4 as input (s1) , sk1000 (s2), and d4 (D) in monitoring mode when i am forcing X4 to ON/OFF , there is no any value change occure on d4 i have tried to change the s2 value from k1000 to k10000, but not fruitful i need your valuable support to confirm that my primary setup is correct or not and what things are required/missing attached program screeshot
- 5 replies
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- spd
- speed monitoring
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Studion 5000 & Kinetix 5700 - Safely limited speed
MartinK posted a topic in Allen Bradley / Rockwell Automation
Hello there, I am using a Kinetix 5700 drives to control bunch of axis. HW used : 5069-L320ERMS2 GurdsLogix, 2198-S086-ERS4 Servo Drive with MPM-B2152M-M motor and the 843ES-SIP12BA6 safety encoder. All is working fine except I can't figure out how to dynamically change an axis velocity controlled by a MAG instruction. I have a virtual master axis controlling the velocity and each physical axis is controlled by a MAG instruction with a gear ratio. In my safety program I have SFX and SLS function block used to determine the safe speed limit. The SLSLimit output of the SLS function block is linked to a SS1 Request of my servo drive. This causes the axis to stop when safe speed limit acceded. What I'd like to be able to do is to dynamically change velocity (limit it to safe speed if SLS instruction is active) of each axis without having to change the gearing ratios and thus avoid the SS1 safe stop action. I know how to do that using JOG or MOVE but is it even possible to do that using the MAG instruction? Regards Martin- 2 replies
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- kinetix 5700
- studio 5000
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Schneider PLC and Automation Direct integrated stepper motor serial communications
lzbear posted a topic in Other PLCs
Hello guys, I am very new at this. I am trying to make a Schneider PLC (TM251MESE) to send some serial commands (485) to a integrated stepper motor from Automation Direct (STR-MTRD-17030RE, but I am lost. The driver has been program to receive the SCL commands. But not quite sure how to send those from the plc. Im using SoMachine V 4.2 Have any of you done anything similar? Any example will be greatly appreciated. Thanks-
- schneider plc
- stepper
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Hi All Does anyone know if it's possible to simulate the HSC function using just the software? I'm using the Hioen command but I want to try and simulate it if possible. Thanks in advance Scott
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Problem to read pulses (encoder) of VHSC24/C Card using CompactLogix
Vinicius Santos posted a topic in Allen Bradley / Rockwell Automation
Hello guys, I am running an application for packaging measurement using a sick DFS60B incremental encoder (programmable from 1 to 10000 PPR). In more detail, it passes packaging on a conveyor belt and we have created an inspection station and an expulsion station (defective packaging), so we use the encoder to check at specific points of the packaging for defects (we use special sensors to check defects). ) (there are four in total). However, the problem we are having is the following: When reading the encoder in the PLC, the same means that performs "jumps" and does not enter the windows (GRT and LES) created on the ladder, ie, as if it were not continuous. . I understand that because the VHSC24 card works at 1 MHz in counter mode, this type of problem should not occur according to our application is not even 100 KHz. For example, our case: Using 1000 PPR and the motor speed (coupling output) is 3600 RPM (in practice it is around 1750 RPM) the frequency is calculated as follows: F = (PPR X RPM) / 60. : F = (1000x3600) / 60 = 60 KHz, ie 60 KHz is much less than 1 MHz, I think this kind of problem does not occur. Application Info: . Studio 5000 V31 . PLC Model: Rockwell 1769 - L19ER-BB1B CompactLogix 5370 . Encoder Card: 1734-VHSC24 / C . Incremental Encoder: Sick, DFS60 up to 10,000 PPR and HTL Electrical Interface. Using a 200 mm circumference / perimeter wheel. . Motor Nameplate Data: 1670 RPM, 0.37 kW / 0.5 HP, 60 Hz . Inverter: Weg CFW500, Output Frequency 62 Hz. Card Settings we use RPI: 2 ms Type: Counter, but we already use it as Encoder X1 Store Count Mode: Disabled Filter: No Filter, but we use 50 KHz and 5 Khz filters in our tests. Counter Attenuator: 1 Wiring Diagram VHSC24 We turn on encoder A at input 0 and encoder Aret at input 1 In logic (Structured Text) Using the PMUL instruction to convert encoder (Pulse) data to mm scale. (Ladder) The window comparisons part (GRT and Les) and other part of the process. We emphasize that we performed the tests also only with the reading and comparison part of the data, excluding the other parts, precisely to verify the issue of Scan, but the problem persisted. If anyone here in the forum has some information that can help us, I would appreciate it.- 11 replies
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- compactlogix encoder
- vhsc24
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Hello, I need to have a cx-programmer code which I can control my linear actuator position by setting 3 positions with timer, I am using a CP1L pro'skit
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- stepper motor
- cx-programmer
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Hi, I can’t find an answer to the following and I was advised to ask it here.I’m programming an Omron CJ2M with an MD212 high speed I/O card. I usually do all my programming in Structured text, simply because I like it a lot over ladder or sft.Now, if I want to read the hight speed counter (incremental encoder), I have to make a ladder section and use the PRV instruction to store the present value in a chosen location.The manual says the current PV is stored in A271, but I can’t get a readout there. Apparently the only way to read it is through this instruction.Does anyone know if there is an equivalent to the PRV instruction for Structured text? or another way perhaps? Again, when I check the actual memory adress, there’s no value there withouth the use of the PRV instr.
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Powerflex 527 rotating after MSO instruction
Jiggadoo posted a topic in Allen Bradley / Rockwell Automation
I am controlling the powerflex 527 drive with MSO instruction, first setting the drive on and then running the motor with MAJ instruction. After MSO instruction, motor is rotating about 2 sec and then stops to wait the MAJ. I have not find any solution for this. My configuration is frequency control, no feedback, sensorless. One hint i found from the rockwell pages but it did not help me. Rated slip speed is set to zero.- 1 reply
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- powerflex 527
- zero speed
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can anybody Know how to control stepper motor using PLC