GS4 Drive (VFD) - Wiring and Grounding Tips and Tricks from AutomationDirect
Vložit
- čas přidán 28. 03. 2018
- www.automationdirect.com/VFD - (VID-DR-0056)
- Before installing the drive, take a few minutes and check out this video - it will save you time and money. Of course, drives need to be installed in accordance with your local electrical codes and should always be installed by a qualified professional.
To learn more visit www.automationdirect.com/VFD
Check out all of our videos at www.AutomationDirect.com/Videos
To subscribe: czcams.com/users/automati...
Facebook: / automationdirect
Twitter: / automationdirec
LinkedIn: / automationdirect
**Prices were valid at the time the video was released and are subject to change.
Related AutomationDirect.com part numbers: GS4-21P0,GS4-22P0,GS4-23P0,GS4-25P0,GS4-27P5,GS4-2010,GS4-2015,GS4-2020,GS4-2025,GS4-2030,GS4-2040,GS4-2050,GS4-2060,GS4-2075,GS4-2100,GS4-41P0,GS4-42P0,GS4-43P0,GS4-45P0,GS4-47P5,GS4-4010,GS4-4015,GS4-4020,GS4-4025,GS4-4030,GS4-4040,GS4-4050,GS4-4060,GS4-4075,GS4-4100,GS4-4125,GS4-4150,GS4-4175,GS4-4200,GS4-4250,GS4-4300 - Věda a technologie
I'm not a professional,but can read diagrams.The instructions are helpful,and going without saying pops and smoke aren't a good sign.
Thanks! Did you know we have over 1000 videos just like it located here: www.automationdirect.com/videos
Question regarding not using a contactor to on/off a VFD. If one should not use a contactor to on/off the VFD, is it recommended to just leave the VFD plugged into power at all times then, and turn it on via the control panel? Would using a high power, manual rotary disconnector switch then be advised against as well? Since it effectively would be doing the same action as a contactor.
Hi Paul, That section of the video wasn't very clear. It should really say "A contactor should not be used to turn the MOTOR on/off. It is OK to use a contactor (or switch or whatever) to turn the VFD on/off, just don't do it while the motor is running. That can damage the drive.
@@automationdirect so the contactor simply functions as a means to power down the VFD while keeping main breaker on? Can I just install a nema 4x4 disconnect to my drive panel and hit the disconnect when I’m finished? Not killing power while under load is true with any drive. The manual also says not to turn the drive off and on more than 1 time an hour! Yikes, hard to troubleshoot a problem like that.
@@beckyschwantes5287 Hi Becky, Yes, Any form of disconnect will work. re: 1 hour .. ugh … yeah, I have to tell you to follow the manual of course ( but I can also tell you I rarely do … Use your common sense …)
So when connecting a 240v single phase g20 with proper grounding, you still need to remove the jumper?
Correct. See page 2-15, warning at top of page of the user manual here: cdn.automationdirect.com/static/manuals/gs4m/gs4umw.pdf
That section is full of good info, it's worth taking a few minutes to read through it (starting on page 2-14).
Did you know that you can view all of our VFD videos here:
www.automationdirect.com/cookbook
Click on the "AC Motor Drives" chapter.
You can also find hem here: www.automationdirect.com/videos/home?t=link&cat1=113
And pick the family you want in the left column menu.
I am confused about 3 phase delta connections. We use 46-V/3ph delta with a separate ground wire. What would be the proper way to wire this drive with this type of power?
HI Duncan, By "Separate Ground" do you mean you have a separate ground that is not connected to the Delta? If so, then that is most likely just an earth ground which we talk about at 02:05 in the video.
@@automationdirect - So to correct my typo above it is 460V/3ph. By separate ground I mean that the ground is not connected to any of the power phases, either in a "corner" or by a center tap on one phase. Also, it is not a "Y" system where there is a neutral at the "center" of the 3 phases.
In my experience here in the US, almost all 3 phase industrial power I run across is 460 "delta" with a separate ground which is unreferenced to any of the phases.
Thanks for the reply.
@Duncan Potter Yeah, That sounds like your Protective Earth ground (PE) strap. See 02:05 in the video. Good luck!
I spoke with an applications engineer earlier regarding a g20. Series drive. It’s an e frame size rated for 10hp single phase 5 horse power 3 phase 240. He told me not to worry about a contactor. Can you explain the purpose of the contactor? Also I am really confused about the “protection” circuit that the manual “reccomends” be set up. It appears to be a dry contact by the line side connections I think it was terminals ro r1? It almost looks like a shunt trip circuit but I can’t tell. It shows a diagram (that I don’t understand) and also a note stating it will close the contact in the case of a fault emergency amd kill power before any damage occurs. I just don’t understand how it’s being accomplished.
Hi Becky, I am away from the office, will get you some answers tomorrow.
Meanwhile, This video is about the GS4, but you are specifically asking about the GS20 - correct?
@@automationdirect it’s actually a GS232010 driving a 240v 3p 5hp motor with a 240v 1p input. I think I have that sized properly..... I found a document online that explains the conversion equation to size a 3phase ac line reactor for use on single phase input . All off there reactors in this family can be used on single phase input! Who knew? So I have that taken care of. But I would like to know what they are doing with that protection circuit and also there is a 24v output that is jumpered between two other terminals and they specify not to use that input for anything other than that circuit. It appears to be an estop circuit but I can’t say for sure. If you look in the manual you will see exactly what I’m talking about. If you could provide some insight into those I would really appreciate it!
Hi Becky,
Sounds like you have a GS23-2010 (I think your description above is backwards, should be 10Hp for 3 phase 240, 5HP for 120 single phase -right?)
The contactor is just a powerline on/off switch so you can isolate the drive from the main power if you need to service the drive. It can also be used to automatically remove power when a thermal overload or other fault is detected.
Protection circuit: Not sure what you mean by "R0 R1" - I don't see those terminals? Are you referring to the STO terminals? That's the only protection circuitry that shuts down the drive that I can think of. I don't think we have done an STO video on the GS20 yet, but it will be VERY similar to the STO in the GS4 Drives so take a look at this and see if it answers your questions: czcams.com/video/k22FaCWfGcU/video.html
@@automationdirect yes but I’m using a 230v input. The drive family does not support a 120 1p 5 hp application. I want to set up a hand off auto switch where manual would be operation from the key pad and auto would be operation via 3 wire start with a pressure switch controlling the latch. I wish I. Could program two different terminals as fwd run command. I don’t see that option. So I think I’m going to download the plc software and make a run circuit . I’m also going to do some training with the maintainance team so I want to incorporate an estop utilize some outputs to light some confirmation lamps for run and fault and breaker trip ect. Also I have a +|- pushbutton so I’m going to try and make a frequency adjustment circuit and maybe a jog circuit and then we can use it as a trainer for some of the new guys and apprentices. Is the plc pretty staraight forward? It’s been a while since I have programmed ladder logic and all I ever used was Mitsubishi.
@@automationdirect yes the dry relay contacts . Maybe it’s rc1 and r1 ? It’s right at the beginning of the wiring the drive section of the g20 manual. In the manual they have a weird schematic of the circuit they want you to create using those contacts.it appears to be taking two legs of 3p from the line side of the main contactor and then creating a protection circuit to power off the drive whenever a fault occurs. Are they creating a 220v circuit And running it through the dry contacts to and into another relay to drop out the main contactor? It’s not a great diagram. I do not want anyone going through the manual and telling me I didn’t wire it correctly. I would just use a digital output to create the same scenario but I want to save as many outputs as I can . If they are dry contacts that close when an alarm is active can I use external 24v to make that circuit instead of using line power? In the description for rc1 and r1 it gives loads for induction load and some other load.???!
Also there is a 24+ terminal colored red with two other terminals I think sa and sgm. The drive comes with it jumpered but it is also some kind of safety circuit.
Last question they want a resistor capacitor scrubber circuit at the contactor and it says “hook it up at the top and bottom” what the hell are they talking about? Do they mean they want it hooked to the coil of the contactor like normal or are they suggesting it be hooked to line and load of contacts? I have a diode terminal block that I’m using to wire the 24vdc coil on my contactor. If they want surge protection on the ac line and load shouldn’t I use a trans orb or varistor?