Key Technical Specifications

• Product Model: YPP110A (3ASD573001A1)
• Manufacturer: ABB
• Processor Speed: 200MHz (Typical)
• Memory: 2MB Flash, 512KB SRAM, 128KB EEPROM
• Communication Interfaces: 2x RS-485 (Isolated), 1x Ethernet (10/100Mbps)
• I/O Capacity: 16x Digital I/O (Optocoupler isolated), 8x 16-bit Analog Inputs
• Power Supply: 24V DC (18-36V DC range)
• Operating Temperature: -40°C to +70°C (-40°F to 158°F)
• Form Factor: DIN Rail Mount, Aluminum Heat-Sink Casing

 

Product Introduction

Drives don’t just stop; they get dumb. I’ve been called to paper mills and steel plants where a fried processor board meant the motor was running open-loop until the part arrived. The ABB YPP110A (3ASD573001A1) is the digital processor module that keeps your ABB drives from turning into expensive paperweights. It handles the heavy lifting: executing control loops, processing analog feedback, and talking to the plant DCS over Ethernet or RS-485.Engineers keep these on the shelf because they are genuinely tough. With a -40°C to +70°C operating range and isolated I/O, this board laughs at the electrical noise that fries lesser controllers. I’ll be honest: the aluminum casing acts as a massive heatsink, which is great for cooling but terrible if you mount it next to a variable frequency drive’s braking resistor without thinking. It’s a solid, industrial-grade brain, but it demands clean 24V power and proper grounding. Treat it right, and it’ll run your motors flawlessly for decades.

Quality SOP & Tech Pitfalls

I’ve seen too many “new” boards arrive dead on arrival because some warehouse didn’t understand ESD. Before this YPP110A leaves our bench, it gets the full treatment. We start with a visual inspection under magnification to check for cold solder joints or physical damage. Then, it goes on a live test rack where we verify the 200MHz processor boots, the Ethernet port negotiates a link, and the 16-bit ADCs actually read accurate voltages. We check isolation with a megger and seal it in anti-static packaging with the firmware revision logged.Here is the reality check: Ground loops are the silent killer of this module. I once watched a tech plug a YPP110A into a drive rack, power it up, and instantly fry the Ethernet port because the RS-485 ground was tied to a dirty motor ground. Also, pay attention to the DIP switches and jumpers. This board has configurable I/O and communication settings. If you copy the old board’s jumper settings wrong, you might configure an analog input as a digital output and short out your 24V supply. Always photograph the old board before pulling it.

 

Installation & Configuration Guide

1. Pre-Installation: ⚠️ LOCKOUT/TAGOUT THE DRIVE. Wait at least 10 minutes for the DC bus capacitors to fully discharge. Verify 0V with a multimeter. Take high-resolution photos of the old board’s DIP switches, jumpers, and wiring.
2. Removal: Label every single wire. Disconnect the ribbon cables and terminal blocks carefully. Release the DIN rail clips and slide the board out. Do not force it.
3. Installation: COPY ALL JUMPER AND DIP SWITCH SETTINGS EXACTLY. This is where 90% of “dead on arrival” claims come from. Slide the new YPP110A into the rack, ensuring the backplane connector seats fully. Reconnect wiring using the OEM torque specifications.
4. Power-On & Testing: Restore 24V control power first. Watch the status LEDs. The board should go through a boot sequence (usually a few seconds of flashing). Once solid green, connect your programming software (ABB Control Builder) and verify the firmware version matches your application. Force a test output and verify the motor responds correctly.

Compatible Replacement Models

• ✅ Drop-in Replacement: YPP110A 3ASD573001A1 (Exact match. Ensure the 3ASD573001A1 suffix matches to guarantee identical hardware configuration).
• ⚠️ Software Compatible: YPP110A (Different Suffix, e.g., 3ASD573001A2) (Newer hardware revision. It will physically fit and likely work, but you may need to recompile the drive application or update the controller configuration. Budget 1-2 hours of engineering time).
• ❌ Hardware Mod Required: YPP110B or YPP111A (Different bus connector or I/O layout. Do not buy this unless you are prepared to rewire the control panel and modify the backplane. Not recommended for emergency swaps).

 

Frequently Asked Questions (FAQ)

Can I hot-swap this processor module while the drive is running?
Absolutely not. This is not a USB drive. The YPP110A communicates over the internal drive bus, and removing it while powered will corrupt the drive’s memory and potentially damage the backplane. Shut down the drive, wait for the capacitors to discharge, then swap.The board powers up but the Ethernet LED never lights up. What’s wrong?
First, check your DIP switches. The Ethernet interface might be disabled in hardware. Second, verify your IP address and subnet mask in the drive configuration software. Third, try a different CAT5e cable. I’ve seen more “bad boards” turn out to be bad cables or misconfigured switches than actual hardware failures.Is this a refurbished board or brand new?
This is New Surplus. It was manufactured by ABB but never installed in a live application. It has been stored in climate-controlled conditions. We still bench-test every unit because shelf time can affect electrolytic capacitors, but it is not a pulled, used board from a decommissioned plant.My old board failed after a power surge. Will this new one survive?
Only if you fix your power quality. The YPP110A has isolated I/O and built-in protection, but it isn’t indestructible. If your 24V supply is riding on top of massive transients from the motor drives, the protection circuits will eventually give up. Install a dedicated, isolated 24V power supply for the control electronics, and consider adding transient suppressors on the analog input lines.Does this board support PROFINET or EtherNet/IP?
The base YPP110A supports standard Modbus TCP and ABB proprietary protocols over Ethernet. PROFINET or EtherNet/IP typically require an additional communication adapter card plugged into the expansion slot, or a different firmware package. Always verify with the OEM datasheet and your drive configuration software before assuming native support.