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SERVO VALVE NULL Bias Current
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By Jeff Ladwig on 10 February, 2010 - 9:25 am -
The values given for PM1 are as found. In addition, the actual position value as shown on the valve...
Did you record any as-found conditions, or are these the as-found conditions?
Did you, or based...
I am in the process of checking the calibration of PM1, 2, 3 and SRV control valves, and have run...
Interfacing Altivar 71 drive with ABB's AC500 PLC through Profibus
Looking for a suitable SCR controled DC drive for controlling motor speed for crane/ Shovel application in India
IGV servo currents started to increase and after few minutes the Hydraulic oil pressure got reduced.The unit is running with IGV servo currents at -40 to -50 % on all <R>,<S>,<T>.
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By Sudheer on 10 February, 2010 - 5:51 am -
---I don't know where you are monitoring the servo currents, or if you're adding the three values...
Here's a link to some more info about the lube oil and some experience with it:
...
I don't know where you are monitoring the servo currents, or if you're adding the three values...
By Sudheer on 29 January, 2010 - 11:31 am -
Thanks Mr. CSA for the response.The machine tripped after 22 hours of operation with the Servo...
A lot of things to respond to here. And a lot of things which weren't mentioned. Proper operation...
Beckhoff Servo drive running signal
To find control unit for Position Control of a flying Shear
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By Peter Nachtwey on 9 February, 2010 - 10:08 pm -
You will find there are many. Here is our example
...
By Mike on 9 February, 2010 - 6:19 pm -
Why can't you use a PLC for this application?...
By LeGa on 9 February, 2010 - 10:48 am -
Flying shear is one of well-known applications of motion controllers - see for example one of them...
motor indication for 2 wire control circuit.
how to design telemetering a electric motor for fault detect
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I would install a very inexpensive PLC at the remote motor site and have it read an auxiliary...
I need ABB Manual please share me.
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By Bob on 3 February, 2010 - 9:00 am -
What manual are you looking for? Write me off forum and I will send it to you.
Email to sales...
Motor control with STM32 32-bit ARM®-based MCU
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My stm32 starter kit program accidentally deleted. how can i recover?or how can i make new program...
Block diagram and how to use microcontroller
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By swaroop on 31 January, 2010 - 12:27 am -
Hi,
hey can you plz mail me info and program of your project plzzzzzzzz......
my mail id...
i have stepper motor and it works correctly but when i put the load on it to turn the gears it vibrate and not turn correctly.
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By gova on 30 January, 2010 - 10:44 pm -
> what is the highest holding torque a stepper motor can achieve? <
look for nema stepper...
Poor performance of butterfly valve when used as flow control tool
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By Issac on 30 January, 2010 - 11:57 am -
Raw guess on my part.
The ultrasonic flow meters are probably transit time meters, not...
By CharlesRichard on 30 January, 2010 - 7:06 am -
Ayman,
First, I have no explaination for your lack of flow change except for you may want to...
What type of equipment is needed to duplicate commercially available motion platform designs using off the shelf equipment?
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By Vince McCarroll on 29 January, 2010 - 4:40 pm -
I have a working model of a 3 axis motion base for simulating high performance aircraft and baja...
Motor/Pump rotation check
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By anonymous on 27 January, 2010 - 10:03 pm -
> uncouple it and bump it like most people do or you can buy a phase rotation indicator <
...
By mike on 26 January, 2010 - 10:34 am -
uncouple it and bump it like most people do or you can buy a phase rotation indicator...
I have been following the VSD for wound-rotor induction motors with interest. What are the pitfalls of retro-fitting small squirrel cage
induction motors (2 HP , 460 volt, 3 phase) with VSDs?
induction motors (2 HP , 460 volt, 3 phase) with VSDs?
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By Gerhard Botha on 25 January, 2010 - 3:47 am -
> Beware of the brake, if there is one. It must be externally <
--- snip ---
This...
Has anyone had experience with these drives? We have 3 of them with 3 Unimotors and each one gives the wrong encoder phase angle after an autotune.
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By shrijit on 25 January, 2010 - 1:43 am -
Hi
i have faced the same problem but i managed it by applying to processes
1- put the rated...
Looking for color standards for control wiring.
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By Tim Reese on 22 January, 2010 - 4:28 pm -
Kudos to Mr. Everhart. For those wishing exact references to NFPA 79, it can be found in Chapter...
I need to build synchronization for two or more than two generators
I need to control a FC51 Danfoss VFD with LS PLC.
I need to start , stop & jog the drives.
I need to start , stop & jog the drives.
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By David on 18 January, 2010 - 8:50 pm -
See these discussions of noise related to VFD's.
EMI from a VFD
...
By SAM on 18 January, 2010 - 10:34 am -
Well I am trying to interface 2 Nos Danfoss Fc-302 Drives to an Hmi, using Modbus rtu protocol....
I need help regulating stepper motor torque
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By Robert Scott on 15 January, 2010 - 1:19 pm -
Stepper motor torque is not something that you should control. The torque is whatever it needs to...
By Ken Emmons Jr. on 15 January, 2010 - 8:20 am -
If you want to control a stepper's torque, one way is to use Pulse width Modulation (PWM) on the...
By Leon on 15 January, 2010 - 4:00 am -
> i need some help to control stepper motor torque, any suggestion?
Do you try to use stepper...
Linear motor force calculation
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By Leon on 15 January, 2010 - 8:58 am -
Equation F=ma is correct, but [a] is acceleration in m/sec^2 here.
Inside websites of linear...
First project with a Baldor Servo motor, newbie has questions
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By Mark Atherton on 13 January, 2010 - 6:49 pm -
Hi Bill,
No missing pieces, I have it all working as required using the basic Baldor FlexDrive...
Student project, requesting suggestions: DC motor position controller, has steady state errors.
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By William Sturm on 13 January, 2010 - 12:06 pm -
You may want to control the velocity as well as the position. Then you can create a velocity...
OK, another question, if you are not tired yet.
I intend to make a positioning system, as I...
I have an issue with an encoder company stating I cannot apply IS Barriers to their devices.
I'd like to bypass the motherboard on a treadmill
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What do you mean? do you want to supply energy to that motor always? are you looking for a 90 VDC...
you probably need to define this better. the motherboard is basically DC drive, if you are to...
encountering problems when driving a BLDC motor with PWM control
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It seems you have problem with motor's voltage and not with power. You must check Duty cycle for...
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