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Search: Posts Made By: pal
Forum: LIVE PLC Questions And Answers January 13th, 2021, 08:12 PM
Replies: 14
Views: 1,106
Posted By pal
New motors usually are supplied with the links...

New motors usually are supplied with the links set for the highest voltage . Maybe the field guy just wired the phases the same as the old motor but didn't check the links . Duh .
Paul
Forum: LIVE PLC Questions And Answers September 23rd, 2019, 04:54 PM
Replies: 4
Views: 778
Posted By pal
To amplify gothroach's reply , the stating...

To amplify gothroach's reply , the stating current for star/delta is approx. 2.5 times motor FLA . For direct - on - line that increases to 6.5 to 7.5 x FLA . ie a motor with 40A fla will draw a...
Forum: LIVE PLC Questions And Answers August 28th, 2019, 07:09 PM
Replies: 25
Views: 4,106
Posted By pal
The rt314024 has an on delay of 8ms and an off...

The rt314024 has an on delay of 8ms and an off delay of 6ms . This is a power relay and the min. current is approx 100 mA . You might be better off adding some code to the laptop to create a one shot...
Forum: LIVE PLC Questions And Answers August 20th, 2019, 06:26 PM
Replies: 4
Views: 924
Posted By pal
Have you linked the commons togther and connected...

Have you linked the commons togther and connected them to 0v ?
Forum: LIVE PLC Questions And Answers August 2nd, 2019, 05:50 PM
Replies: 2
Views: 666
Posted By pal
Hi Biti , While the PLC is faulted , go...

Hi Biti ,


While the PLC is faulted , go online and in the left panel select the PLC ( usually the top item ) . Right click and from the tabs click on Major Fault .
If you need more help ,...
Forum: LIVE PLC Questions And Answers May 14th, 2019, 04:58 PM
Replies: 13
Views: 1,330
Posted By pal
Jraef , the inverter model I gave is actually...

Jraef , the inverter model I gave is actually rated as 1 ph in at 220v and 380v out at 3ph and the output current is more than enough for a 5 hp motor . However the manifacturer is Chinese , and I...
Forum: LIVE PLC Questions And Answers May 13th, 2019, 02:29 PM
Replies: 13
Views: 1,330
Posted By pal
I think Gary's misread the motor plate - 5HP at...

I think Gary's misread the motor plate - 5HP at high speed & 2.5 HP at low speed . The 40 is the max delta temperature in deg C .

Ecogoo does a 9100-1T-00550-G-B drive rated 220v +-15% to 380v...
Forum: LIVE PLC Questions And Answers May 8th, 2019, 07:39 PM
Replies: 13
Views: 1,057
Posted By pal
I'm afraid I can't help with windows 10 . Still...

I'm afraid I can't help with windows 10 . Still running Win 7 .
Forum: LIVE PLC Questions And Answers May 8th, 2019, 07:27 PM
Replies: 13
Views: 1,057
Posted By pal
If you are connecting directly from PC to PLC you...

If you are connecting directly from PC to PLC you may need a cross-over ethernet cable or alternatively a simple network switch between the PC & PLC
You have not mention which O.S. is on your laptop...
Forum: LIVE PLC Questions And Answers May 8th, 2019, 06:58 PM
Replies: 11
Views: 1,594
Posted By pal
I'm sorry . Using the sketch kindly provided by...

I'm sorry . Using the sketch kindly provided by Tibert , the current through R1 is load 1 + load 2 = 30A so the power from Battery 1 is 3600 VA . The current through R5 and load 3 is 15A so the power...
Forum: LIVE PLC Questions And Answers May 8th, 2019, 05:49 PM
Replies: 13
Views: 1,057
Posted By pal
You have not mentioned pinging the PLC just to...

You have not mentioned pinging the PLC just to check that the PC & the PLC are still on the same network .
Forum: LIVE PLC Questions And Answers May 6th, 2019, 04:15 PM
Replies: 11
Views: 1,594
Posted By pal
Since this is a student question no-one will do ...

Since this is a student question no-one will do your work for you . But a hint is : - work out the current in each resistor .
Forum: LIVE PLC Questions And Answers May 1st, 2019, 03:05 PM
Replies: 18
Views: 2,297
Posted By pal
Might I suggest you try and obtain a copy of the...

Might I suggest you try and obtain a copy of the original SLC program to see if the reason for the latches was an attempt to overcome some sync/assync problems from the conversion .
This might...
Forum: LIVE PLC Questions And Answers March 14th, 2019, 10:58 AM
Replies: 11
Views: 1,306
Posted By pal
As ASF replied , check the connection tag in the...

As ASF replied , check the connection tag in the properties displaqy . This refers to the connection between the rack and the module , NOT THE OUTPUT CONNECTION .
Paul
Forum: LIVE PLC Questions And Answers March 7th, 2019, 04:08 PM
Replies: 4
Views: 1,020
Posted By pal
You may need to check your regulations - I'm not...

You may need to check your regulations - I'm not familiar with them but over here the following is one of the requirements :-


The emergency stop function must be available and operational at all...
Forum: LIVE PLC Questions And Answers November 21st, 2018, 12:54 PM
Replies: 9
Views: 1,039
Posted By pal
If I understand correctly , you are extending a...

If I understand correctly , you are extending a cylinder above a conveyor to stop parts by making them slide on the conveyor. When you de-power the solenoid , the cylinder retracts under air pressure...
Forum: LIVE PLC Questions And Answers November 8th, 2018, 06:04 PM
Replies: 32
Views: 5,907
Posted By pal
Have a look at Bosch/Rexroth EFC3610 or EFC5610...

Have a look at Bosch/Rexroth EFC3610 or EFC5610 drives with Enet card and a downnloadable AOI or use messaging for AB PLCs . Price of VFD & Enet bcard seems good value .
Forum: LIVE PLC Questions And Answers October 17th, 2018, 01:24 PM
Replies: 13
Views: 821
Posted By pal
In your post #5 you mentioned the outputs in your...

In your post #5 you mentioned the outputs in your program were not turning green . If these outputs are in a subroutine , check if the subroutine is being called . Also check if there is a jump ...
Forum: LIVE PLC Questions And Answers October 10th, 2018, 01:51 PM
Replies: 15
Views: 1,838
Posted By pal
I'm currently working on a turret lathe by...

I'm currently working on a turret lathe by Dowding and Doll . The motor control box contains 6 contactors - 2 for forward and reverse , 3 for speed control ( Dahlander as jraef mentioned ) and...
Forum: LIVE PLC Questions And Answers September 25th, 2018, 04:55 PM
Replies: 4
Views: 801
Posted By pal
Suggest you check the specs on a 1769 IQ16F (...

Suggest you check the specs on a 1769 IQ16F ( fast inputs ) and see if the the response is quick enough for you ( 300 uA max on ) .
Forum: LIVE PLC Questions And Answers September 25th, 2018, 04:47 PM
Replies: 19
Views: 2,990
Posted By pal
A 20A supply is more than enough unless you are...

A 20A supply is more than enough unless you are using 24 V somewhere else as well as the PLC & outputs. Do you have MCB's betwen the PSU and the output cards ? If so , normal MCB's are not usually...
Forum: LIVE PLC Questions And Answers September 24th, 2018, 06:09 PM
Replies: 19
Views: 2,990
Posted By pal
Bear in mind that when energising contactors or...

Bear in mind that when energising contactors or other inductive loads , to close them the current draw is 8 to 10 times the holding current , and if the power supply is not big enough they fail to...
Forum: LIVE PLC Questions And Answers September 21st, 2018, 06:34 PM
Replies: 19
Views: 2,990
Posted By pal
I am having problems understanding this . When...

I am having problems understanding this . When you measure the voltage to the card are you reading between +VDC and DC COM on the output card to get 24v and then between the output OUT1 for example...
Forum: LIVE PLC Questions And Answers September 20th, 2018, 02:54 PM
Replies: 19
Views: 2,990
Posted By pal
You could check the current being drawn from the...

You could check the current being drawn from the outputs - these are fairly low current output cards .Also , each output card needs its own 24V and 0V connections from an external 24 VDC supply ....
Forum: LIVE PLC Questions And Answers September 18th, 2018, 10:34 AM
Replies: 12
Views: 2,404
Posted By pal
You have add a generic enet module to your I/O...

You have add a generic enet module to your I/O tree and fill in the data needed manually , I'm afraid I'm not familiar with this process but hope some of the real experts on this forum can help...
Showing results 1 to 25 of 208

 
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