I was assigned to manipulate via AS a hardware configuration I’ve never used before, so I’m lost. There is a 8BVP0220HW00.000-1 with a 8B0C0160HW00.001-1 auxiliar power supply that is supplied by the 8BVP, both mounted on a 8B0M0080HW00.000-1 backplate. It’s controlled using a 4PPC80.101E-10B and it has no code uploaded, I’m supposed to modify the Bus Voltage parameter in the 8BVP configuration to get different voltages out of the backplate’s terminals but no matter what I put in the Bus Voltage parameter, the output voltage is always 148.
As you can imagine, I have very low experience with this equipments and I’ve been reading documentation but I can’t find anything about variable output voltage so I must ask, Is this even possible? I asked to AI and it said that it’s not possible but I don’t trust AI so much.
I was also told to do not modify anything of the wiring or the hardware configuration, but if it’s necessary for using the 8BVP as a variable voltage source I’ll comment it with my workmates to see what I can do.
Thank you for reading and I’ll be grateful if someone has an answer.
The 8BVP0220HW00.000-1 is a active PowerSupply for the ACOPOSmulti System.
The Default operation as of i know is:
If the Module is in state Disabled it works as a passive Module if 400 V AC input you get 560 V DC on DC-Bus
If the Module is in state Enabled it works as a active Module if 400 V AC input you get typicaly 750 V DC on DC-Bus.
I think the Voltage in active State can some how adjusted by software in a small area but i think it has to be larger than the Voltage in passive State.
So in general i would not consider this as a configurable Voltage Source.
I think you can have different Voltage by suppling different AC inputs. But you have to consider whats covered by the specification.
May i ask what the intention of this use Case is, because normaly the System is used to provide Power to the Inverters of the ACOPOSmulti System.
Why do you need a Configurable Voltage?
Well, they told me that it is for charging capacitors of different devices (They won’t tell me what devices untill I figure out how to configure the voltage)
I read something about Max. chargeable DC bus capacitance values of 8BxP power supply modules in the Acopos User Manual so I’m trying to understand that part to see if there’s some useful information.
I don’t think the 8BVP is going to be the soultion you are looking for. It is not adjustable AC/DC power supply. It is meant specifically to connect to mains level power, actively maintain a DC backplane voltage. It will pull power from the mains if the DC bus voltage is low, and clean and return power to the mains if the DC bus voltage is high.
It sounds like you are being asked to try to provide DC power at varying levels depending on needs. If you have a limite current draw and a lower voltage range, you should look at the 80PS080X3.10-01. This can take in three phase 380 to 480 V and provide a variable 24-80 VDC up to 16.6 amps. The voltage is controlled via a B&R PLC communicating over X2X.
I want to say I recall in one of B&R Automation’s AUTOMOTION magazines and article regarding a company using B&R’s Active Power Suppplys, the Multi backplane, and ACOPOSmulti inverters to provide high current/voltage heating units. I.e. not driving servo motors.
The max. capacity Charable is mainly limited by the low Voltage max current situation. An empty Capacitor does have a very low resistance and a very high current.
The loading Cirquit normaly has a functionality to reduce this current. In older Devices there where Loading Resistors which are bypasses by Relais, if a minimum Voltage is passed and the internal Resistance of the Capacitor has increased. In modern Devices this is done via electronics.
But this Loading Cirquit will not change the maximum Voltage reached by the Device.
I finally knew what devices are we going to restore, some 8V1320 devices. We’re already talking about alternatives to build oor get a variable power source but I’d like to have some feedback or advice.
As far as i know B&R does not have a Product in Portfolio, which can fit the spezification from the Datasheet to restore the Capacitors after long storage times. To fullfill the spezification you have to use 3rd Party Equipment.
I do not know which Device they use in our own Production for this purpos but we have spezial equipment for this in Production Facility.