Solaredge inverter proper shutdown and power up procedure?

[inspron]

Could someone that is technically astute share the best practices of the shutdown and power up procedures for Solaredge inverters?

I see there are 3 shutoff switches:
1) Inverter red switch
2) DC Disconnect
3) AC Disconnect

I was warned not to throw the DC Disconnect switch while in production mode because that would be "bad" for the inverter and could damage it.

[sensij]

Could someone that is technically astute share the best practices of the shutdown and power up procedures for Solaredge inverters?

I see there are 3 shutoff switches:
1) Inverter red switch
2) DC Disconnect
3) AC Disconnect

I was warned not to throw the DC Disconnect switch while in production mode because that would be "bad" for the inverter and could damage it.

Turn them off in the sequence you listed, and turn on in reverse. I used to ignore the switch and jump straight to step 2, but had to re-pair my optimizers one time afterwards. Generally, mechanically making or breaking an active circuit isn't a great idea, and the red switch allows the system to power down before switching.

[inspron]

Turn them off in the sequence you listed, and turn on in reverse. I used to ignore the switch and jump straight to step 2, but had to re-pair my optimizers one time afterwards. Generally, mechanically making or breaking an active circuit isn't a great idea, and the red switch allows the system to power down before switching.

So the Inverter red switch is actually the "slow & safe" way to initiate the shutdown? Since DC disconnect is not the prefer 1st step, I wish there was more information on the process and how much time to wait in between the steps.

[ButchDeal]

So the Inverter red switch is actually the "slow & safe" way to initiate the shutdown? Since DC disconnect is not the prefer 1st step, I wish there was more information on the process and how much time to wait in between the steps.

DC disconnect is not only not the preferred first step it is highly recommended NOT to be the first step. It will not only not have rapid shut down that way but will have arching inside.

[sensij]

So the Inverter red switch is actually the "slow & safe" way to initiate the shutdown? Since DC disconnect is not the prefer 1st step, I wish there was more information on the process and how much time to wait in between the steps.

When you flip the red switch, you can watch the system react on the inverter's display. Best practice would be to wait until the DC voltage falls to ~1 V per optimizer before using the rotary disconnect.

[eml2]

So, if I need to shutdown the system, do I really need to do Step 2? Can I just do Step 1, then Step 3?

[ButchDeal]

So, if I need to shutdown the system, do I really need to do Step 2? Can I just do Step 1, then Step 3?

It depends on why you want to shut it down. If you just want it off then you could just do step #1

if you want to work n it do all three. If you just did 1 and 3 then you would still have dc current in the inverter to deal with.