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MX-850 NP Emerson EMC MX-Series Brushless AC Servo Drive Legacy Motion Control Range
  • MX-850 NP Emerson EMC MX-Series Brushless AC Servo Drive Legacy Motion Control Range
  • MX-850 NP Emerson EMC MX-Series Brushless AC Servo Drive Legacy Motion Control Range
  • MX-850 NP Emerson EMC MX-Series Brushless AC Servo Drive Legacy Motion Control Range
  • MX-850 NP Emerson EMC MX-Series Brushless AC Servo Drive Legacy Motion Control Range

MX-850 NP Emerson EMC MX-Series Brushless AC Servo Drive Legacy Motion Control Range

Place of Origin UK / EU
Brand Name Emerson
Certification COO & COC
Model Number MX-850 NP
Product Details
Shipping:
DHL (default) / FedEx / UPS / TNT / Air / Sea
Shipping Weight:
6.5KG
Packing Size:
320 × 260 × 200 Mm
Customer Courier A/C:
Yes – DHL/FedEx/UPS Account Accepted
Trade Terms::
EXW, DAP, FOB, CIF
Express Delivery:
DHL, FedEx, UPS
Highlight: 

Emerson MX-850 brushless servo drive

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MX-Series AC servo drive spare part

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Legacy Emerson motion control drive

Payment & Shipping Terms
Minimum Order Quantity
1 pc
Price
$200
Packaging Details
Brand new and original
Delivery Time
3-5 days
Payment Terms
T/T,paypal,alipay
Supply Ability
99+
Product Description

Product pictures

MX-850 NP Emerson EMC MX-Series Brushless AC Servo Drive Legacy Motion Control Range

Product Overview: Emerson MX-850 NP

Parameter Specification
Manufacturer Emerson 
Order Number MX-850 NP
Product Name Brushless AC servo drive / servo amplifier
Series / Family MX series brushless servo drives (neighbouring frames include MX-150, MX-280 and MX-440)

Application & Fault Scenarios

Where It Fits: On converting, printing, packaging and web-handling equipment where a brushless servo axis must index accurately or run at regulated speed — the drive closes the loop on encoder feedback, accepts analog or pulse commands from the machine controller, and drives a matched servo motor through the machine gearbox or belt. It is also the standard exchange when an installed MX drive fails, since these machines are often still in service long after the drive line was discontinued.
Faults Seen in the Field:
  • Drive will not enable / no run indication → check the AC supply at the input terminals, the control (enable) signal, and any inline fuse or contactor in the control circuit.
  • Overcurrent trip on acceleration or under load → inspect motor windings and cable for shorts or ground faults, confirm the motor matches the drive's rating, and review acceleration rates and load inertia.
  • Following error / position drift → verify encoder cable integrity and connector seating, re-check gain and inertia settings, and look for mechanical binding, worn belts or backlash.
  • Overvoltage trip during deceleration → lengthen the deceleration ramp, or add/upgrade braking resistance where the machine stops frequently with high inertia.
  • Axis runs in the wrong direction or overshoots → confirm command polarity and encoder phase sequence, then re-tune velocity and position loop gains.

Related products

MX-150 MX-280
MX-440 MX-440 NP
MX-850 FX-316
FX-340 FX-455
FX-6210 FX-8500
DXE-208C DXE-316C
DXM-340CB DXM-490C
PCM-11 PCM-15
PCM-5 AXIMA-04-00
M210GB14 MP155A4

FAQ

Q1: What is the Emerson MX-850 NP?
A: A brushless AC servo drive from the legacy Emerson / EMC MX series, used to run a matched servo motor in indexed or continuous position and speed duty on converting, printing, packaging and similar machinery.
Q2: Is the "NP" suffix important?
A: Yes — it identifies a specific build within the MX-850 frame, so it should not be treated as interchangeable with other MX-850 suffixes or with smaller MX frames. Send a nameplate photo and we will confirm the exact build.
Q3: Can it be replaced with a modern servo drive?
A: Often yes, but the motor, feedback type and command interface must be matched, and the machine's wiring and parameters reworked. Tell us the machine type and we can advise on an upgrade path.

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