Embroidery unit will not initialize.

Touch the presser foot up button once to raise the presser foot. Touch again and the presser foot will raise to extra lift position, and the feed teeth will be automatically
lowered to make it easier to get heavy fabric under the presser foot.In embroidery mode, the extra lift makes it easier to insert or remove the hoop.
Here is a link to your manual: http://www.husqvarnaviking.com/SiteMedia/Products/Machines/DESIGNER-EPIC/Manual/Designer_epic_manual_EN.pdf

I had this problem, but ignored it, go through the advised listing on the machine's screen, under 'pressure foot lifter' and see if anything can be adjusted.

I would say it time to have the computer or sensors of the machine checked

there are three positions the presser foot can sit in. Up and down are the same on any machine. The 7570 has an in-between position for embroidery. Lift the presser foot and the lower it slowly while pushing gently. It should stop about half way down. The embroidery foot pushes the foot into the down position with each stitch allowing the fabric to move easily to the next stitch.

it sounds like the sewing machine needs to be checked
to see if there is somthing wrong with the computer in the machine.

I fixed myself. When you take off the front left cover to expose inner workings o0f pressure foot lever, move the pressure foot lever see, the small metal plate move, when looking from back of machine see a small post upper left rear with what kooks to be a spring, lightly touch causing to spring back to the left and you will hear a snap. This is realigning pressure foot and your embroidery unit will register and you will have a normal lcd screen.This helped me, hope helps you.

Hello,

The Pfaff 7570 Creative Designer is a computerized sewingand embroidery machine that has the ability to connect to the computer, andhave embroidery designs sent to the embroidery machine. The sewing andembroidery machine has many features, including hundreds of general sewingfunctions, a separate embroidery module, and on-screen editing features. TheCreative Designer 7570, manufactured in the 1990s, was the first sewing andembroidery combination machine ever made by Pfaff.

1. Usingthe Sewing Machine
1 Turn on your sewing machine using the "On"button located just below the turn wheel on the right side of the machine.Thread your Pfaff 7570. Note that Pfaff sewing machines thread from left toright, not right to left like other sewing machines. The upper tension discsshould be raised at their highest position while threading, and the presserfoot should be raised up until you thread the needle. Drop the presser footright before you thread the needle. The prevents thread problems during use. 2 Insert a full bobbin and retrieve the bobbin threadthrough the thread plate. Raise your sewing foot and needle to its highestposition; hold the needle thread taught with your left hand, lower the needleinto the thread plate using your right hand, and then raise the needle. As youraise the needle, the needle thread will catch the bobbin thread, and pull itup. There should be a loop of thread intertwined with the needle thread. Usetweezers, your finger, or a straight pin to retrieve the bobbin thread that isvisible through the thread plate, and pull it through the plate. 3 Place the fabric under the presser foot, and drop thepresser foot. Choose the stitch you want to use from the top stitch display,right above the top thread feed. Press the '0-9" button located on thesewing machine's front panel, and a display screen will come up. Input thethread number, and press the 'OK' button located on the sewing machine's frontpanel. The stitch will display, and you are ready to sew. Repeat Step 3 foreach stitch you want to use.

2. SettingUp the Embroidery Unit
1 Turn the sewing machine off. Take out the embroiderymachine unit, locate the connection bushing on the back of your embroideryunit, and match it up with the connection bushing on your sewing machine. Theconnection bushing should be located next to a yellow sticker on yourembroidery unit, and somewhat resembles a serial port on a computer. Slide theembroidery unit onto the sewing machine with the sewing machine turned off. Connectto the bushing carefully as you slide the embroidery unit onto the sewingmachine. Use your embroidery unit manual if you need assistance. 2 Insert an embroidery card. Your embroidery unitshould contain an embroidery card labeled embroidery card 1. Use that or useanother Pfaff 7570 card that you own. Turn on the sewing machine. 3 Open the bobbin case area just below the threadplate, and lower the feed dogs by pushing the feed dog switch to the right.Press the card button located on the front face of your sewing machine. Adisplay with pop up; choose embroidery designs or monogram and a new screenwill pop up with your design choices. Choose the design you want, and press"OK." A checklist screen appears. Do everything on the checklist, andpress "OK." Use your embroidery unit manual if you need help. 4 Start embroidery by pressing the foot pedal. At thistime, your hoop should already be attached to the embroidery unit becauseyou've already gone through the checklist. Your embroidery manual displayscolored picture diagrams that are very helpful in understanding everything inyour checklist menu.
Thanks for using fixya

My moms does the same. One way we got around it was to hold the presser foot all the way up and click the ok button on the screen. The other thing we did would be to hold the presser foot up all the way while turning the machine on while the embroidery unit was already attached. When I say raise the presser foot all the way up, I am talking about raising it up as if you were placing something really large under the foot, not just in the resting up position. Hope this helps - it is very frustrating! My sister has the same exact machine purchased at the same time as my moms, but she doesn't have this problem.

If you take the face plate off (left side cover) there is usually a small sensor "lever" that is activated when you raise or lower the presser foot. This could be bad or broken. Many models had plastic then they switched to a metal lever. I think this could be it.

Does the presser foot move at all when the machine is first turned on?
Do the needle and feed teeth calibrate when the machine is first turned on?
You probably need to locate your nearest authorized repair center.