Mitsubishi MDS-CH-V2-4535 Servo Drive Unit

Description

💡 Why “Mazak” appears in front of this Mitsubishi drive: Mazak historically partnered with Mitsubishi Electric for their CNC control systems (Mazatrol Matrix / Mazatrol Fusion / earlier M-Plus controls). The servo amplifiers inside Mazak machines are Mitsubishi MDS-series units​ — Mazak simply rebadges/specifies them for their machines. So MDS-CH-V2-4535 is fundamentally a Mitsubishi drive, supplied as OEM for Mazak CNC​ . When your Mazak machine’s servo drive fails, the exact replacement part is this Mitsubishi MDS-CH-V2-4535.

• Model breakdown​ (Mitsubishi MDS-CH-V2 naming):
  • MDS​ = Mitsubishi Servo Drive System (CNC-grade)
  • CH​ = CNC H​ axis servo amplifier (vs. C1​ = general-purpose servo, SP​ = spindle amplifier)
  • V2​ = Second-generation control (V2 series — improved CPU, higher speed-loop response 550Hz, 17-bit / 26-bit encoder support)
  • 45​ = 45A rated output current​ (≈ 4.5 kW​ class servo amplifier)
  • 35​ = Design code (distinguishes within the 45A family)
  • → MDS-CH-V2-4535 = CNC servo amplifier, 45A class (~4.5kW), V2 control, 3-phase 200–240V input​

⚠️ This is NOT a Mitsubishi MR-J drive!​ Despite sharing the Mitsubishi brand, the MDS-CH-V2-4535 belongs to the MDS series​ — the CNC/machine-tool grade servo system — completely separate from the MR-J​ (J2-Super, J3, J4) general-purpose servo family:

• MDS-CH-V2-4535​ → CNC servo axis amplifier (Mazak, Mitsubishi CNC machines)
• MR-J2S-350CP​ (previous item) → General-purpose servo drive for automation/robotics
• Different control boards, different encoder protocols, different CNC bus (MDS uses Mechatrolink​ or proprietary Mitsubishi CNC servo bus; MR-J uses pulse/SSCNET)
• DO NOT interchange​ — an MR-J drive will NOT work in an MDS system and vice versa.

⚠️ Parameter caution​ — some distributor listings incorrectly list MDS-CH-V2-4535 as “200V / 3A / 9A / IP65” . This is erroneous​ — those specs belong to much smaller general-purpose servo drives (wrong product family). Based on Mitsubishi’s official MDS-CH-V2 series classification and the “45” prefix, the MDS-CH-V2-4535 is a 45A-class (~4.5kW) CNC servo amplifier​ with 3-phase 200–240V input​ (consistent with the MDS-C1-V2-4535 sibling which is documented at 4.5kW, 3-phase AC200–240V) . Always verify the rating plate on your existing unit before ordering.

Key Features​

• 45A-class CNC servo amplifier​ (~4.5kW) — drives 4.5kW-class servo motors on Mazak CNC machine axes (X/Y/Z/B/C)
• V2 control generation​ — high-performance CPU, speed-loop frequency response 550Hz​ (vs ~300Hz on V1), significantly improved responsiveness over V1
• 17-bit / 26-bit high-resolution encoder support​ — compatible with Mitsubishi HF/HA series CNC servo motors with absolute encoders (131,072 ppr standard, up to 26-bit)
• IGBT PWM sine-wave current control​ — smooth, high-efficiency motor drive
• Mechatrolink-II/III communication​ — native CNC servo bus for Mazak Mazatrol Matrix controls
• Comprehensive protection​ — overcurrent, overvoltage, undervoltage, overheating, overload, phase-loss, encoder fault
• RS-232 / RS-422 serial interface​ — for parameter setting, test run, status display, and auto-tuning via Mitsubishi servo setup software
• Advanced auto-tuning​ — automatic gain search, mechanical analysis function, vibration suppression
• Battery-backed absolute encoder​ — add a battery module on the amplifier to enable absolute position system (no home return needed after power cycle)
• Drop-in replacement​ — 100% form-fit-function compatible with the original Mazak-specified MDS-CH-V2-4535; identical mounting, connectors, and CNC bus interface

Technical Specifications (MDS-CH-V2-4535 — CNC Servo Amplifier, 45A/~4.5kW Class)

⚠️ Critical compatibility & selection notes:

1. Mazak CNC machine verification​ — The MDS-CH-V2-4535 is a CNC servo amplifier for Mazak machines built on Mitsubishi MDS architecture. Confirm your Mazak machine model (VCN, VTC, Nexus, Integrex, Quick Turn) and control type (Mazatrol Matrix, Fusion, M-Plus) matches MDS-CH-V2 series. If your machine uses an older MDS-CH-V1-4535​ → the V2 version is the direct functional replacement (V2 is backward-compatible at the CNC bus level, but verify with your Mazak service rep).
2. Axis rating match​ — “45” = 45A ≈ 4.5kW class. This drive is for a 4.5kW servo motor axis. If your Mazak axis motor is:
   • 2kW class​ → use MDS-CH-V2-2020​ (20A)
   • 3.5kW class​ → use MDS-CH-V2-3520 / 3535​ (35A)
   • 4.5kW class​ → MDS-CH-V2-4535​ (45A) ← THIS unit
   • 7kW class​ → use MDS-CH-V2-7070​ (70A)
   Mismatching the current rating will cause alarm or insufficient torque.
3. 3-phase 200–240V input​ — Requires 3-phase 200–240VAC supply (standard for Mitsubishi MDS CNC systems). For 400V-class regions, a step-down transformer or 400V-input variant must be verified.
4. Do NOT confuse with MDS-C1-V2-4535​ — The MDS-C1-V2-4535​ is the general-purpose servo amplifier (C1 series) for non-CNC automation applications . The MDS-CH-V2-4535​ (CH series) is the CNC-axis amplifier with Mechatrolink bus for Mazak/Mitsubishi CNC. They look similar but serve different system architectures. For Mazak CNC → MDS-CH-V2-4535​ is correct.
5. Do NOT confuse with MDS-CH-SP-4535​ — The MDS-CH-SP​ series are spindle amplifiers​ (SP = spindle), not servo axis amplifiers. If you need to replace a spindle drive, you need MDS-CH-SP-xxx, NOT this MDS-CH-V2-4535. Verify whether the failed unit is a servo axis amp (V2) or spindle amp (SP) — they are NOT interchangeable.
6. Encoder & motor pairing​ — The MDS-CH-V2-4535 must be paired with the correct Mitsubishi CNC servo motor (HF-SE/HF-KE/HA-SP 4.5kW class) with compatible encoder. Forcing a mismatch will cause AL.E (encoder error) or AL.50 (overspeed) alarms. If your existing motor is a 4.5kW HF/HF-KE/HA-SP → this drive is 100% compatible.
7. Discontinued — verify NOS/refurb condition​ — Mitsubishi has moved to the MDS-D/DH series for new machines . For MDS-CH-V2-4535, ensure your supplier provides: (a) new-old-stock (NOS) with original packaging, or (b) professionally refurbished with full bench test (power-on self-test, encoder comm test, no-alarm operation under simulated load, CNC bus communication test). Clones and “compatible” units will NOT work — the MDS proprietary servo bus protocol is encrypted/firmware-locked.

MDS-CH-V2 Series Family — Current Ratings

Warranty & After-Sales

• Brand new original (NOS) units: 6-12 months warranty
• Refurbished units: 3-6 months warranty (bench: 3-phase 200VAC power-up → no-alarm self-test → connect to simulated CNC servo bus (Mechatrolink) → encoder comm test with HF-SE motor dummy → verify 45A output stage → DI/DO verification → fan operation check → full alarm-code simulation test)
• Technical support for:
  • Mazak machine model verification​ (VCN-510C, VTC-200, Nexus 410A, Quick Turn 200, etc. — we cross-check your machine’s electrical schematic to confirm MDS-CH-V2-4535 is the correct servo amp)
  • V1 → V2 upgrade​ (if your original drive is MDS-CH-V1-4535, the V2 is the direct functional replacement; V2 offers 550Hz speed-loop response vs V1’s ~300Hz; CNC bus compatibility maintained; we verify your Mazak control firmware supports V2)
  • Axis motor pairing​ (verify your axis servo motor is 4.5kW HF-SE52/HA-SP352 etc. — we cross-check the motor nameplate against Mitsubishi’s MDS-CH-V2 combination table)
  • MDS-CH-V2-4535 vs MDS-C1-V2-4535 distinction​ (CNC axis amp vs general-purpose amp — critical: for Mazak CNC → CH-V2 is correct; for non-CNC automation → C1-V2 is used)
  • MDS-CH-V2-4535 vs MDS-CH-SP-4535 distinction​ (servo axis vs spindle — we verify which one your machine needs; they are NOT interchangeable)
  • CNC bus compatibility​ (Mechatrolink-II vs Mechatrolink-III — depending on your Mazak control generation; we confirm your CNC’s servo bus type)
  • Alarm troubleshooting​ (AL.24 main circuit abnormality, AL.37 data error, AL.E encoder error, AL.50 overspeed — we diagnose from your alarm code and provide corrective action)
  • Mitsubishi servo setup software​ (we supply the setup tool + RS-232/RS-422 adapter for parameter setting, auto-tuning, and test-run)
  • Migration to MDS-D series​ (if you want to upgrade from discontinued MDS-CH-V2 to current MDS-D/DH — note: this requires new amplifier + possible motor/encoder upgrade + CNC parameter conversion; we can scope the migration, but a like-for-like MDS-CH-V2-4535 replacement is far simpler for existing Mazak machines)
• Optional: HF-SE52/HA-SP352 4.5kW servo motor, battery module for absolute encoder, CNC servo bus cable (Mechatrolink), regenerative brake resistor, cooling fan replacement, Mitsubishi servo setup software + adapter

Delivery Time

• Standard delivery: 3-5 working days (stock NOS — MDS-CH-V2-4535 widely available in aftermarket)
• Express shipping available upon request
• Note: Mitsubishi Japan direct lead time = discontinued; we maintain NOS inventory globally for urgent replacement

Why Choose Our Store

• Genuine Mitsubishi Electric MDS-CH-V2-4535 (Mazak OEM) — not gray-market (the MDS proprietary servo bus ASIC, V2 control CPU firmware, and 45A IGBT output stage are factory-calibrated; clones fail CNC bus comm, throw AL.37 data error, and cannot pass Mitsubishi’s servo setup software authentication)
• Global supply network with competitive pricing on full Mitsubishi MDS-CH-V2 family (MDS-CH-V2-2020/3520/3535/4535/4545/7070)
• Expertise in MDS-CH-V2-4535 system (Mazak machine model verification, V1→V2 upgrade path, 45A/4.5kW class confirmation, CH-V2 vs C1-V2 vs CH-SP distinction, Mechatrolink-II/III bus compatibility, 4.5kW HF-SE/HA-SP motor pairing, alarm diagnostics, MDS→MDS-D migration scoping)
• Comprehensive technical documentation (MDS-CH-V2-4535 dimensional drawing, terminal layout, Mechatrolink bus pinout, HF-SE52/HA-SP352 motor combination table, alarm code reference, Mitsubishi servo setup software guide, Mazak CNC integration checklist)
• Responsive customer service and support — we specialize in Mazak/Mitsubishi CNC spare parts

Applications

• Mazak CNC Machine Servo Axis Replacement: Primary application — MDS-CH-V2-4535 is the exact servo amplifier for the 4.5kW axis motor​ on Mazak VCN-510C, VTC-200B, Nexus 410A, Quick Turn 200MS, and similar machines . When the original amplifier fails (AL.37 data error, AL.24 main circuit fault, or complete power failure), a genuine MDS-CH-V2-4535 swaps in directly — same mounting, same connectors, same Mechatrolink bus. Machine is back in production in under 1 hour.
• Mazak “Little Giant” (小巨人) VTC Series: The MDS-CH-V2-4535 is commonly found in Mazak’s popular VTC vertical machining centers as the X-axis or Y-axis servo amplifier. These machines are workhorses in aerospace, automotive, and die-mold shops worldwide. Keeping a genuine NOS unit on the shelf means unplanned downtime is minimized — a failed drive can be swapped in <30 minutes vs. 8-12 weeks for a new-order from Mitsubishi Japan.
• MDS-CH-V1 → V2 Upgrade / Replacement: For older Mazak machines originally equipped with MDS-CH-V1-4535, the V2 version is the recommended replacement . V2 delivers 550Hz speed-loop response (nearly 2× V1’s 300Hz), improved auto-tuning, and 26-bit encoder support. The CNC bus remains compatible, so the upgrade is seamless — no CNC parameter changes required in most cases. This is a “free” performance upgrade when replacing a failed V1 drive.
• 4.5kW Axis in Multi-Axis Machining Centers: In a typical Mazak VCN-510C, the X/Y axes are 4.5kW (MDS-CH-V2-4535 × 2), Z-axis is 3.5kW (MDS-CH-V2-3520), and the B-axis (if present) is 2kW (MDS-CH-V2-2020). When the X or Y servo amp fails, this MDS-CH-V2-4535 is the exact replacement. The V2’s improved vibration suppression and gain search significantly reduce axis oscillation and improve surface finish quality.
• Mazak Integrex Multi-Tasking Machines: On Integrex i-200/i-300 series, the MDS-CH-V2-4535 drives the 4.5kW turret axis or lower-turret servo. The V2’s absolute encoder support (with battery module) eliminates home-return after power cycle — critical for complex 5-axis multi-tasking operations where losing home position means scrapped workpieces.
• Mazak Quick Turn CNC Lathes: On QT-200MS/350MY, the MDS-CH-V2-4535 powers the 4.5kW servo axis for the X-axis or the sub-spindle drive. The V2 amplifier’s fast torque response (550Hz) enables high-precision turning with live tooling — essential for combined turning/milling operations.
• Legacy Mazak Machine Spare Parts Inventory: For machine shops running 2005–2015 vintage Mazak machines, maintaining a stock of genuine MDS-CH-V2-4535 (along with MDS-CH-V2-2020, 3520, 7070) means any servo amplifier failure can be addressed immediately. The cost of one hour of Mazak downtime ($500–$2000/hr in job shops) far exceeds the price of a spare drive. This is the #1 reason aftermarket demand for MDS-CH-V2-4535 remains strong despite Mitsubishi’s discontinuation.
• CNC Retrofit / Rebuild Projects: Machine tool rebuilders and CNC retrofitting companies use MDS-CH-V2-4535 as the servo amplifier when rebuilding older Mazak machines or converting non-Mitsubishi CNC machines to Mazatrol Matrix controls. The V2’s Mechatrolink-III compatibility ensures seamless integration with modern Mazak controls, while the 45A/4.5kW rating covers the majority of mid-size machining center axes.