ACS880 Confusing Start/Stop Trigger
I have a ACS880, 40A 480VAC model Actually there's a second 11A drive on this same equipment and I'm eperienceing the same with both. I'm attempting to use the FENA-21 Module driving it from a Compactlogix PLC. I've gotten the ethernet/ip connection up, can set references, and see my status word. I can also set the transparent/user control word, and attempt to use a bit from there for my run command. I'm using a DI1 as a enable, and DI2/3 for jog inputs.
What isn't working as expected is my EXT1 start trigger. I'm running with bi-directional speed reference on both drives. I can make a DI the trigger, or the User CW Bit 0, and get the same results (level not edge trigger).
So now to the behavior I can't make sense of:
1. Drive in local mode.
2. Set remote Start bit to 0
3. Transition to Remote mode.
4. Set Start bit to 1, and DRIVE DOES NOT RUN AS EXPECTED (no 1's in start inhibit word)
5. set Start bit back to 0
6. Back to local mode
7. Set Start bit to 1
8. Transition to Remote mode and DRIVE STARTS AS EXPECTED
9. Set Start bit to 0, and DRIVE STOPS AS EXPECTED
10. Set Start bit to 1, and DRIVE DOES NOT RUN AS EXPECTED
Seems like I am selecting the start bit correctly, but something is going wrong with edge/level or something! Ideas?
Thanks in advance,
Ajay
What isn't working as expected is my EXT1 start trigger. I'm running with bi-directional speed reference on both drives. I can make a DI the trigger, or the User CW Bit 0, and get the same results (level not edge trigger).
So now to the behavior I can't make sense of:
1. Drive in local mode.
2. Set remote Start bit to 0
3. Transition to Remote mode.
4. Set Start bit to 1, and DRIVE DOES NOT RUN AS EXPECTED (no 1's in start inhibit word)
5. set Start bit back to 0
6. Back to local mode
7. Set Start bit to 1
8. Transition to Remote mode and DRIVE STARTS AS EXPECTED
9. Set Start bit to 0, and DRIVE STOPS AS EXPECTED
10. Set Start bit to 1, and DRIVE DOES NOT RUN AS EXPECTED
Seems like I am selecting the start bit correctly, but something is going wrong with edge/level or something! Ideas?
Thanks in advance,
Ajay
Asked 2 months ago
Answers
0
Hi
Generally, if you want to use a control with FENA-21, you do not need to wire controls via HW.
I did not understand what you want to do and your questions are numerous, what I can advise you is to check which is the desired operation, and compare it with the product manual FENA-21.
A good start is to understand well what the CW writes in your drive and what your PLC drive responds with the SW.
I think I take it for granted that the parameterization of the card, with the IP address and everything else, has already been checked.
You can find the latest version of the manual at the following link, try to follow the instructions starting from chapter 10 and starting page 146 for ACS880 drive series
https://library.e.abb.com/public/d6a3...
Hope this help you
Generally, if you want to use a control with FENA-21, you do not need to wire controls via HW.
I did not understand what you want to do and your questions are numerous, what I can advise you is to check which is the desired operation, and compare it with the product manual FENA-21.
A good start is to understand well what the CW writes in your drive and what your PLC drive responds with the SW.
I think I take it for granted that the parameterization of the card, with the IP address and everything else, has already been checked.
You can find the latest version of the manual at the following link, try to follow the instructions starting from chapter 10 and starting page 146 for ACS880 drive series
https://library.e.abb.com/public/d6a3...
Hope this help you
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