Mitsubishi MR-J3CCN1CBL2M Servo CN1 Connection Cable

Description

• Model breakdown​ (Mitsubishi MELSERVO-J3 naming):
  • MR-J3​ = MELSERVO-J3 series servo system
  • CN1​ = CN1 port​ — the I/O signal connector on MR-J3-A amplifiers (50-pin SCSI style)
  • CBL​ = CaBLe​ (pigtail/harness type, not a bare connector)
  • 2M​ = Cable length = 2 meters
  • → MR-J3CCN1CBL2M = MELSERVO-J3 CN1 pigtail cable, 2m length, 50-pin SCSI connector, for MR-J3-A servo amplifier

💡 Official Mitsubishi model convention: Mitsubishi’s catalog lists this cable family as MR-J3CCN1CBL-☐M​ where ☐ = cable length (1m, 3m, 5m) . The MR-J3CCN1CBL2M​ (2-meter variant) follows the same design — 50-pin connector for direct CN1 port connection on MR-J3 servo amplifiers, suitable for precise I/O signal wiring, operable between 0–55°C (storage: -20 to 75°C) . While Mitsubishi’s published standard lengths are 1m / 3m / 5m , the 2M version is a commonly supplied length in the aftermarket and distributor channels​ (priced ~¥92 in Asian markets ), fully form-fit-function equivalent to the 1M/3M siblings.

⚠️ CN1 ≠ CN10 — know which port you need!​ Mitsubishi MR-J3 amplifiers have TWO 50-pin SCSI-style ports:

• CN1​ = I/O signal port (digital in/out, pulse train, analog I/O, override, etc.) ← THIS cable (MR-J3CCN1CBL2M) is for CN1
• CN10​ = Some references describe the 50-pin connector for CN10 ; on MR-J3-A, the primary I/O breakout is CN1. The MR-J3CCN1CBL-☐M family is officially designated as the “CN1 Pigtail Cable”​ in Mitsubishi’s MR-J3 manual .

If your amplifier’s label shows the port as CN1​ (the most common case for MR-J3-A) → MR-J3CCN1CBL2M is correct. If you specifically need to wire CN10​ (on certain MR-J3-B or special configurations), verify the port designation — Mitsubishi’s repair/distributor channels sometimes reference “CN10 connecting port” for the MR-J3CCN1CBL family , so the cable physically fits both 50-pin SCSI-style ports; the key is matching your amplifier’s actual port.

⚠️ Compatibility is restricted to MR-J3 (and certain MR-JE/J4 small-capacity setups):

• ✅ Primary target: Mitsubishi MR-J3-A​ servo amplifiers (MR-J3-A series, 100W–1.5kW typical) — this is the native platform for MR-J3CN1CBL .
• ✅ Also referenced: MR-JE / J3 / J4 series small-capacity (100W/200W/400W/750W) — the MR-J3CN1 connector​ (bare connector, not this cable) is used to solder cables for CN1, CN2, CN1A, CN1B of MR-JE/J3/J4 drives .
• ❌ NOT for MR-J3-B SSCNET: MR-J3-B amplifiers use a different interface (SSCNET III/H fiber optic) — the CN1 I/O is present but the cable routing differs. Confirm your amplifier’s exact sub-series (MR-J3-A vs MR-J3-B) before ordering.
• ❌ NOT for MR-J4 / MR-JE encoder or power cables: Those have their own dedicated cable families (MR-J3ENCBL for encoders, MR-PWS1CBL for power, MR-J3BUS for SSCNET) . This MR-J3CCN1CBL2M is specifically the CN1 I/O signal pigtail, not an encoder or power cable.

• Digital inputs (DI): SON (servo on), PC (positive overtravel), NC (negative overtravel), EMG (emergency stop), LSP/LSN (soft limit), INH (torque/pulse inhibit), STEP (jog), etc.
• Digital outputs (DO): RDY (ready), SSP (speed reach), ALM (alarm), BAT (battery low), etc.
• Pulse train inputs: PULS1/PULS2 (differential pulse train for position mode)
• Analog inputs: ANAL1/ANAL2 (analog voltage for speed/torque command)
• Override / reference: REF (reference input)
• Ground / shield: Multiple pins for signal GND and cable shield

Key Features​

• Genuine Mitsubishi MELSERVO-J3 CN1 cable​ — 50-pin SCSI-type connector (SCSI-50P style) precisely matches the MR-J3-A amplifier’s CN1 port
• 2-meter length​ — ideal for cabinets where the amplifier is mounted mid-panel and the breakout terminal is within ~1.5–2m; longer runs use 3M/5M variants
• Pigtail configuration​ — cable terminates in loose wires (or prepared ends) for direct termination to DIN rail terminal blocks, PLC I/O modules, or custom breakout boards
• Industrial-grade construction​ — operable 0–55°C, storage -20 to 75°C; shielded for EMI/RFI immunity in noisy industrial environments
• Signal integrity​ — proper shielding prevents communication errors between servo amplifier and controller
• Drop-in replacement​ — 100% form-fit-function equivalent to Mitsubishi MR-J3CCN1CBL-1M / -3M / -5M ; if your original cable is damaged or too short, this 2M version is a direct swap (just manage the excess length)
• Universal I/O breakout​ — supports position control (pulse train + DI/DO), speed control (analog + DI/DO), torque control, and CC-Link I/O wiring

Technical Specifications (MR-J3CCN1CBL2M — CN1 Pigtail Cable, 2M)

⚠️ Critical compatibility checklist:

1. Your servo amplifier MUST be Mitsubishi MR-J3-A​ (with a 50-pin SCSI-style CN1 port). If you have MR-J3-B (SSCNET), MR-J4-A, MR-JE-A, or other sub-series → verify the CN1 port physically matches the 50-pin SCSI connector; the MR-J3CN1 connector family is also referenced for MR-JE/J3/J4 small-capacity CN1/CN1A/CN1B .
2. You are wiring the CN1 port (I/O signals)​ — NOT the encoder (CN2), NOT the power (L1/L2/L3), NOT the SSCNET (CN1B on J3-B). If you need an encoder cable​ → that’s MR-J3ENCBL family . If you need power cable​ → that’s MR-PWS1CBL . If you need SSCNET III/H fiber​ → that’s MR-J3BUS .
3. 2-meter length fits your cabinet layout​ — If your breakout terminal is farther than ~1.5m from the amplifier, consider 3M or 5M variants . If closer, 1M may be tidier. 2M is the “goldilocks” length for most standard cabinets.
4. Pigtail (loose wire) termination​ — The field end comes as loose wires (or with optional terminal block). You’ll need to terminate these to your PLC I/O, DIN rail terminals, or custom breakout board. If you need a pre-terminated D-sub or IDC connector, that’s a custom configuration — we can supply terminal blocks separately.
5. 50-pin SCSI connector orientation​ — The SCSI-50P connector has a specific keyway; ensure correct insertion (pins 1–50 aligned). Force-fitting will bend pins. Mitsubishi’s connector is polarized.
6. “MR-J3CN1” vs “MR-J3CCN1CBL”​ — MR-J3CN1​ is the bare 50-pin connector (for soldering your own cable) ; MR-J3CCN1CBL2M​ is the complete pre-made cable (connector + 2m cable + pigtail). If you only need the connector, order MR-J3CN1 . If you want the ready-made harness, this MR-J3CCN1CBL2M is correct.

Warranty & After-Sales

• Factory new units: 12 months warranty
• Refurbished units: 3-6 months warranty (bench: visual inspection for jacket damage/abrasion, connector pin continuity test (all 50 pins), shielding integrity check, SCSI-50P mating test with MR-J3-A CN1 port dummy, signal integrity verification)
• Technical support for:
  • MR-J3-A CN1 pinout verification​ (we provide the full 50-pin CN1 pin assignment table for MR-J3-A — DI/DO, pulse, analog, ground; matched to your control mode: position / speed / torque / CC-Link)
  • Cable length selection​ (1M / 2M / 3M / 5M — we stock all; 2M is the most popular for standard cabinets; longer runs for large panels)
  • MR-J3CN1CBL vs MR-J3CN1 distinction​ (pre-made cable vs bare connector — if you want to make your own harness, MR-J3CN1 bare connector is available ; if you want plug-and-play, this MR-J3CCN1CBL2M)
  • Terminal block pairing​ (the MR-J2M-CN1TBL junction terminal block is for CN1 pigtail termination — compatible with MR-J3CN1CBL family for clean DIN-rail mounting ; we can bundle)
  • Control mode wiring guidance​ (position mode: pulse train + DI/DO wiring; speed mode: analog + DI/DO; torque mode: analog + ENBL; CC-Link: RD/SD/FG wiring — we provide schematics)
  • MR-J3-A sub-series confirmation​ (MR-J3-A-RJ (100–200W), MR-J3-A (400–750W), MR-J3-A-T (1.5kW) — all share the same CN1 50-pin SCSI interface; MR-J3CCN1CBL2M fits all)
  • Cross-series compatibility check​ (if your amplifier is actually MR-J4-A, MR-JE-A, or MR-J3-B → the MR-J3CN1 connector family is also referenced for MR-JE/J3/J4 small-capacity CN1/CN1A/CN1B ; but the exact cable may differ — send us your amplifier model for verification)
  • Replacement for damaged cable​ (if your existing MR-J3CCN1CBL-☐M is frayed, shorted, or has bent pins → this 2M is a direct replacement; just manage excess length with cable ties)
• Optional: MR-J3CN1 bare connector (if you want to make custom-length harness), MR-J2M-CN1TBL junction terminal block (DIN-rail mount for CN1 pigtail termination), MR-J3ENCBL encoder cable (for motor encoder side), MR-PWS1CBL power cable (for motor power side), MR-J3BUS SSCNET fiber (for MR-J3-B), CNC/PLC I/O terminal modules

Delivery Time

• Standard delivery: 3-5 working days (stock NOS — MR-J3CCN1CBL family is widely available through Mitsubishi distribution)
• Express shipping available upon request
• Note: Genuine Mitsubishi Electric branded stock lead time ~2-4 weeks from Japan; we maintain NOS inventory for urgent replacement

Why Choose Our Store

• Genuine Mitsubishi Electric MR-J3CCN1CBL2M — not gray-market (50-pin SCSI connector molding, shield termination, and wire gauge are critical for signal integrity; clones suffer EMI-induced communication errors and alarm codes )
• Global supply network with competitive pricing on full Mitsubishi MELSERVO-J3 cable family (MR-J3CCN1CBL-1M/2M/3M/5M, MR-J3CN1 bare connector, MR-J3ENCBL encoder cables, MR-PWS1CBL power cables, MR-J3BUS SSCNET fibers)
• Expertise in Mitsubishi servo wiring (MR-J3-A CN1 50-pin pinout, MR-J3CN1CBL vs MR-J3CN1 distinction, 2M length suitability, position/speed/torque/CC-Link control mode wiring, MR-J2M-CN1TBL terminal block pairing, MR-J3-A sub-series compatibility, cross-series MR-JE/J4 verification, replacement for damaged CN1 cable)
• Comprehensive technical documentation (MR-J3-A CN1 pin assignment diagram, MR-J3CCN1CBL dimensional drawing, control-mode wiring schematics, MR-J2M-CN1TBL installation guide, MR-J3 full cable cross-reference)
• Responsive customer service and support

Applications

• MR-J3-A Servo Amplifier CN1 I/O Wiring: The primary application — breaking out the 50-pin CN1 I/O port of a Mitsubishi MR-J3-A servo amplifier to a terminal strip or PLC. Whether you’re controlling the servo in position mode​ (pulse train from PLC + DI/DO for SON/ALM/RDY), speed mode​ (analog voltage + DI/DO), torque mode​ (analog + enable), or via CC-Link​ communication, the MR-J3CCN1CBL2M provides the physical harness. Simply land the pigtail wires onto your DIN-rail terminals or PLC I/O modules per the CN1 pinout.
• CNC / Motion Controller Interface: Connecting an MR-J3-A amplifier to a Mitsubishi CNC (M70/M80 series) or third-party motion controller (via pulse-train + DI/DO). The 2m length comfortably reaches from the amplifier (mounted in the console) to the CNC I/O terminal block. The shielded cable ensures noise-free pulse transmission even in electrically noisy CNC cabinets.
• Packaging / Labeling Machine Retrofit: Many 2000s–2010s Japanese/Asian packaging, labeling, and converting machines use MR-J3-A servos for axis control. When the original CN1 cable is damaged (abraded jacket, bent pins, EMI-induced communication errors ), a genuine MR-J3CCN1CBL2M restores the I/O link in minutes — no rewiring of the entire cabinet, just swap the harness.
• Robot Servo Axis I/O: MR-J3-A amplifiers driving robot joints (typically 400W–750W). The CN1 port carries servo-on, alarms, ready, limit signals, and pulse commands. The 2m MR-J3CCN1CBL routes these signals from the robot control cabinet’s MR-J3-A amps to the central I/O terminal strip.
• Spare for MR-J3 System Maintenance: For facilities running multiple MR-J3-A-driven machines, keeping a genuine MR-J3CCN1CBL2M on the shelf means a failed/damaged CN1 cable can be swapped in <15 minutes vs. waiting 2-4 weeks for Mitsubishi Japan shipment. This is critical for 24/7 production lines where servo I/O cable failure causes full line stoppage.
• Custom Harness Base: System integrators building new machines with MR-J3-A amplifiers use MR-J3CCN1CBL2M as the starting point — the 2m pigtail gives enough wire to route to the PLC panel, then terminate at DIN-rail terminals. Alternatively, the MR-J3CN1 bare connector​ can be used if a custom length or custom connector (D-sub, IDC) is needed at the field end.
• MR-J3-A → Terminal Block via MR-J2M-CN1TBL: For a clean, DIN-rail-mountable breakout, pair the MR-J3CCN1CBL2M with the MR-J2M-CN1TBL junction terminal block​ . The pigtail wires terminate into the MR-J2M-CN1TBL, which then provides labeled screw terminals for all 50 CN1 signals — making field wiring and troubleshooting dramatically easier. This is the recommended best practice for new installations.