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MC1790L811A Siemens Original Inverter IO Control Board for MICROMASTER MM4 VFD Drive Replacement Spare Part New Stock
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MC1790L811A Siemens Original Inverter IO Control Board for MICROMASTER MM4 VFD Drive Replacement Spare Part New Stock
| Place of Origin | Germany |
| Brand Name | Siemens |
| Certification | COO & COC |
| Model Number | MC1790L811A |
Product Details
Trade Terms::
EXW, DAP, FOB, CIF
Packing Size:
245 × 165 × 32 Mm
Warranty:
1 Year
Condition:
Brand New And Original
Shipping Weight:
0.62 Kg
Express Delivery:
DHL, FedEx, UPS
Highlight:
Siemens MICROMASTER MM4 inverter board
,Siemens VFD drive control board
,Siemens IO control board replacement
Payment & Shipping Terms
Minimum Order Quantity
1
Price
$40
Packaging Details
Brand new and original
Delivery Time
3-5 days
Payment Terms
T/T,Alipay,Paypal
Supply Ability
99+
Product Description
MC1790L811A Siemens Original Inverter IO Control Board for MICROMASTER MM4 VFD Drive Replacement Spare Part New Stock
The Siemens MC1790L811A is an original inverter IO control board (drive PCB) manufactured as a factory service spare for the Siemens MICROMASTER MM4 series variable frequency drive. Serving as the primary input/output interface board, this PCB handles analog and digital I/O signal conditioning, terminal block interfacing, relay output switching, encoder feedback processing, and serial communication routing between external control devices and the inverter main processor.
Built with industrial-grade signal conditioning circuits, optically isolated digital input channels, precision analog-to-digital converters, and ESD-protected terminal interfaces, the MC1790L811A ensures noise-free signal acquisition, deterministic I/O response timing, and reliable communication link integrity under continuous industrial operating conditions. Factory-calibrated analog scaling, keyed plug-in connectors, and standardized DIN-rail mounting holes enable direct drop-in replacement into the corresponding MM4 inverter enclosure without parameter reconfiguration or wiring modification.
Replacing a degraded or damaged board with a genuine Siemens MC1790L811A resolves common drive faults including unresponsive digital inputs, erratic analog signal readings, relay output failure, communication dropout, and intermittent I/O errors caused by aged solder joints or corroded terminal contacts.
Product Overview: Siemens MC1790L811A
| Parameter | Specification |
|---|---|
| Brand | Siemens |
| Part Number | MC1790L811A |
| Product Type | Inverter IO Control Board / Drive PCB |
| Application | Siemens MICROMASTER MM4 Series VFD Drive |
Product details pictures
Related products
| MC1790L811F02 | MC1790L811F03 |
| MC1790L811B01 | MC1790L811B02 |
| MC1790L811C01 | MC1790L811C02 |
| MC1790L811D01 | MC1790L811D02 |
| MC1790L811E01 | MC1790L811E02 |
| MC1790L811A01 | MC1790L811A02 |
| MC1790L811G01 | MC1790L811G02 |
| MC1790L811H01 | MC1790L811H02 |
| MC1790L811J01 | MC1790L811J02 |
| MC1790L811K01 | MC1790L811K02 |
FAQ
Q1: What is the Siemens MC1790L811A?
A: An original inverter IO control board PCB for Siemens MICROMASTER MM4 series VFD drives, handling analog/digital I/O processing, relay outputs, and communication routing.
A: An original inverter IO control board PCB for Siemens MICROMASTER MM4 series VFD drives, handling analog/digital I/O processing, relay outputs, and communication routing.
Q2: What drive faults does the MC1790L811A fix?
A: Unresponsive digital inputs, erratic analog readings, relay output failure, communication dropout, and intermittent I/O errors caused by degraded circuitry.
A: Unresponsive digital inputs, erratic analog readings, relay output failure, communication dropout, and intermittent I/O errors caused by degraded circuitry.
Q3: Is the Siemens MC1790L811A genuine?
A: Yes. Every board is factory tested for I/O channel accuracy, isolation resistance, relay switching, and communication compliance before dispatch.
A: Yes. Every board is factory tested for I/O channel accuracy, isolation resistance, relay switching, and communication compliance before dispatch.
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