How to increase the starting torque of an ATS480 on initial ramp up ?
In this video, we are gonna talk about how to increase the starting torque of an ATS480 Soft Starter.
First things first, from your main menu, you need to go down into your [Complete settings].
The first thing you wanna do is make sure that your motor settings are programmed correctly,
most importantly the motor nominal current rating.
If this doesn't match to your motor full load amps then that's a big issue ...
... because everything is determined by this value alone.
So, once this is confirmed, go back out to [Complete settings].
Go down into [Start & Stop] control.
The first thing you will notice is that you have [Control Mode] setting in here.
And the options for [Control Mode] are [Voltage Control] or [Torque Control].
Now the default is [Torque Control] here and with [Torque Control] option ...
... you have the ability to adjust the [Initial Starting Torque] along with the [Boost] value.
[Initial Starting Torque] is basically a value where you can adjust the amount of torque that is applied at initial start.
While the [Boost] value is the amount of voltage that you apply at initial start as well.
So they can work hand in hand.
Now, one thing I will mention is that as a normal value for the voltage [Initial Starting Torque] ...
... default is 20% and you have the option to going to 100%.
Just be aware that you don't want to max it out unless really necessary.
So the good rule of thumb : you can try to increase a little bit at a time maybe 50% first before you go up any higher.
And same thing with the [Boost] start around maybe 20 % or so jump.
And as you notice the default is set to [NO] but it will start from 50 and go up to 100%.
So at start adjusting slowly and don't just max it out just because you can.
So now we are going to go in and change it to voltage control instead of torque control.
As mentioned the voltage control is better for some applications like fans and pumps ...
... as they don't need a lot of starting torque and they may run more efficiently in this particular mode.
So to do that just go back to [Control Mode] and make sure the [Voltage Control] is checked off here.
And with that adjustment now you will notice you have [Initial Starting Voltage] instead of initial starting torque available.
And the same idea you have an adjustment range of up to 49 %.
And just be aware that the minimum is 25 based on your voltage level. So again we are doing a voltage boost here in a way.
As we change the control mode to voltage instead of torque mode.
Other things that maybe important as well is your ramp up time.
It wasn't mention before but you know those are important settings to go over.
If your ramp up time is very very long then that might hinder your soft starter from getting up to speed faster.
So having a 10 or 15 second time is usually nominal ...
... but in some cases you do want a ramp up faster meaning that you have to decrease that acceleration value.
If you still are having any issues with the current drawn or for just having hard time ramping up in general,
that also may mean there is some mechanical issue with your application ...
... or any kind of a significant voltage drop in line that can cause your motor pull more current which then will struggle.
So all of these things combined are the things that you are looking to for when you are having any issues ...
... in terms of needing initial torque boost or voltage boost.
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