MEAN WELL CMU2 series: rack-mount burn-in controller - CMU2A-R

Description

CMU2A-R — rack-mount burn-in controller

MEAN WELL CMU2A-R identifies a 3U 19-inch rack-mount CMU2 burn-in application controller. Burn-in is an optional application; the catalog’s explicitly listed configuration is CMU2A-#R#. Confirm the supplied application and configuration for the intended ERS-5000(H) or ERG-5000(H) system.

Download MEAN WELL CMU2 Datasheet (PDF)

CMU2 combined catalog, dated 2026-02-11. Configuration and supported-equipment tables are on page 8; mounting and accessory details are on pages 3–5 and 9–10.

Model and configuration

Parameter Details
Application and enclosure Application A: optional burn-in systems. Enclosure: 3U 19-inch rack-mount.
Configuration selection This application/enclosure code does not identify the three extension-card slots. Confirm the complete ordering configuration and the application firmware; the shared platform connector list does not mean every interface is enabled.
Extension-card coding P = PMBus card (two PMBus v1.1 ports); C = CANBus card (two CANBus 2.0B ports); R = RS-232/RS-485/USB card (including two USB ports); # = blank slot. Card capabilities and active connector functions depend on the application. The separate -R after the application code denotes the rack-mount enclosure.
Supported burn-in configuration CMU2A-#R# is an optional configuration for ERS-5000(H) and ERG-5000(H). Confirm the complete supplied ordering code; the catalog does not establish all slot combinations or a fully specified rack-mount burn-in build.

Monitoring and operation

Parameter Details
Touch display 7-inch TFT LCD, 800 × 480 resolution, capacitive touch panel. The application determines the status screens and commands available.
Monitored information The platform can display connected equipment’s voltage, current and operating status. The catalog lists input/output voltage, output current, temperature and fan speed; actual measurements are application- and device-dependent.
Local controls Touchscreen operation; the rack panel also provides F1–F4, return, enter, up/down keys and a rotary control. Functions depend on the application page.
Indicators and buzzer Green: power-on/normal conditions; red: fault/abnormal conditions. The catalog describes a steady red fault indication. Button-click sound and alarms, with mute.
Ethernet and web interface IEEE 802.3, 10/100BASE network. The platform supports TCP/IP, NTP, SMTP and Modbus TCP; the web server provides application-specific system status, parameters, data logging and download. Configure access and settings using the applicable user manual.
Data and event logging Date/time-stamped data and event logs require an installed SD card. The platform supports SDHC cards up to 32 GB.
Clock retention The RTC uses supercapacitors with a stated retention of only 7 days. Readjust the date/time after a longer unpowered interval.
Language and firmware English, Traditional Chinese and Simplified Chinese interfaces. Firmware updates are supported through SD card or Ethernet; use firmware intended for the actual application and follow its update procedure.
Optional burn-in application The catalog illustrates batch and production-date records, step monitoring, CC/CV/CP test procedures, reports, operator settings and alarms. These functions apply to the optional burn-in application and compatible equipment, not to every CMU2 application code.

Application interfaces and wiring

Parameter Details
Enabled connector functions The optional CMU2A-#R# application matrix enables relays, CANBus and Ethernet only. It marks RS-485, RS-232, AIN, AOUT, DIN, DOUT and PMBus non-functional; the R-card code does not override that application limitation. Verify applicability to the actual supplied complete configuration.
Relay rating Platform provision: four user-programmable relay channels, rated 30 V / 1 A. Use only the application’s supported relay functions.
Relay connector 12-pin DECA MX422-25412 or equivalent. Relays 1/2/3/4 use pin groups 1–3 / 4–6 / 7–9 / 10–12 respectively; each group is NO, NC, COM in ascending pin order.
CANBus connector pins For the enabled CANBus interface: pins 4/12 = remote ON/OFF CONTROL, 6/14 = CAN-H, 7/15 = CAN-L, 8/16 = FG; pins 1, 2, 3, 5, 9, 10, 11 and 13 are NC. Signals are isolated with FG as reference; confirm the complete burn-in build before wiring.
Analog I/O availability The shared platform specification lists five 0–10 V analog outputs and five 0–10 V analog inputs with 12-bit resolution. These analog functions are marked non-functional for the listed A application configurations.
Ethernet connector RJ45: pin 1 TX+, 2 TX−, 3 RX+, 6 RX−; pins 4, 5, 7 and 8 are FG. Do not confuse Ethernet with the physically similar PMBus/CANBus connectors.

Input, environment and standards

Parameter Details
Input voltage and frequency 85–264 VAC, 47–63 Hz; 120–370 VDC. Use the published operating range for the supplied unit; the AC connector labels do not establish a DC polarity assignment.
Input current 0.6 A at 115 VAC; 0.4 A at 230 VAC.
AC input connector Pin 1 = AC/N, pin 2 = AC/L, pin 3 = FG. Follow the input and grounding instructions for the supplied controller.
Operating temperature −25°C to +60°C. The LCD may freeze below −20°C; this display limitation remains applicable within the controller’s stated operating range.
Storage temperature −40°C to +60°C.
Vibration 10–500 Hz, 2G, 10 minutes per cycle; 60 minutes along each X, Y and Z axis.
Safety standards IEC 62368-1 and BS EN/EN 62368-1 approved.
Withstand voltage Input–output: 3 kVAC; input–FG: 2 kVAC; output–FG: 0.7 kVDC. CN36 and CN37 are considered output for these tests.
Insulation resistance Output–FG: 100 MΩ at 500 VDC, 25°C and 70% RH.
EMC emissions BS EN/EN 55032 (CISPR 32): conducted Class B and radiated Class A; BS EN/EN 61000-3-2 and -3-3.
EMC immunity BS EN/EN 61000-4-2, -3, -4, -5, -6, -8 and -11; the catalog also lists BS EN/EN 61000-6-1 with BS EN/EN 50082-2 in parentheses, light-industry level, criteria A.
System integration The controller is a component. Catalog EMC tests cover the controller alone without connected control equipment; reconfirm EMC compliance in the final assembled equipment.

Dimensions and mounting

Parameter Details
Dimensions 483.6 × 66.3 × 132 mm (L × W × H), 3U 19-inch rack-mount format. The drawing separately shows a 14.6 mm projecting rotary control; allow front operating clearance.
Mechanical drawing Catalog general dimensional tolerance: ±1 mm. Rack slot center spacing is 466.2 mm horizontally and 80 mm vertically; follow the full mounting-slot drawing.
Mounting Install in a compatible 19-inch rack. Standalone wall, DIN-rail and desktop fittings are not the rack-mount arrangement.
Mounting accessories The catalog’s DIN-rail bracket and desktop stand are for standalone installations; do not assume they are supplied with or suitable for this rack-mount unit.
Unit mass 2160 g, catalog packing reference per unit (2.16 kg; 6 pieces / 14 kg / 2.91 CUFT). This is not a separately declared measured net mass.
Manufacturer warranty reference The catalog states a five-year manufacturer warranty, subject to its applicable terms.

MEAN WELL CMU2 series: rack-mount burn-in controller - CMU2A-R

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CMU2A-R — rack-mount burn-in controller MEAN WELL CMU2A-R identifies a 3U 19-inch rack-mount CMU2 burn-in application controller. Burn-in is an... Read more

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    Description

    CMU2A-R — rack-mount burn-in controller

    MEAN WELL CMU2A-R identifies a 3U 19-inch rack-mount CMU2 burn-in application controller. Burn-in is an optional application; the catalog’s explicitly listed configuration is CMU2A-#R#. Confirm the supplied application and configuration for the intended ERS-5000(H) or ERG-5000(H) system.

    Download MEAN WELL CMU2 Datasheet (PDF)

    CMU2 combined catalog, dated 2026-02-11. Configuration and supported-equipment tables are on page 8; mounting and accessory details are on pages 3–5 and 9–10.

    Model and configuration

    Parameter Details
    Application and enclosure Application A: optional burn-in systems. Enclosure: 3U 19-inch rack-mount.
    Configuration selection This application/enclosure code does not identify the three extension-card slots. Confirm the complete ordering configuration and the application firmware; the shared platform connector list does not mean every interface is enabled.
    Extension-card coding P = PMBus card (two PMBus v1.1 ports); C = CANBus card (two CANBus 2.0B ports); R = RS-232/RS-485/USB card (including two USB ports); # = blank slot. Card capabilities and active connector functions depend on the application. The separate -R after the application code denotes the rack-mount enclosure.
    Supported burn-in configuration CMU2A-#R# is an optional configuration for ERS-5000(H) and ERG-5000(H). Confirm the complete supplied ordering code; the catalog does not establish all slot combinations or a fully specified rack-mount burn-in build.

    Monitoring and operation

    Parameter Details
    Touch display 7-inch TFT LCD, 800 × 480 resolution, capacitive touch panel. The application determines the status screens and commands available.
    Monitored information The platform can display connected equipment’s voltage, current and operating status. The catalog lists input/output voltage, output current, temperature and fan speed; actual measurements are application- and device-dependent.
    Local controls Touchscreen operation; the rack panel also provides F1–F4, return, enter, up/down keys and a rotary control. Functions depend on the application page.
    Indicators and buzzer Green: power-on/normal conditions; red: fault/abnormal conditions. The catalog describes a steady red fault indication. Button-click sound and alarms, with mute.
    Ethernet and web interface IEEE 802.3, 10/100BASE network. The platform supports TCP/IP, NTP, SMTP and Modbus TCP; the web server provides application-specific system status, parameters, data logging and download. Configure access and settings using the applicable user manual.
    Data and event logging Date/time-stamped data and event logs require an installed SD card. The platform supports SDHC cards up to 32 GB.
    Clock retention The RTC uses supercapacitors with a stated retention of only 7 days. Readjust the date/time after a longer unpowered interval.
    Language and firmware English, Traditional Chinese and Simplified Chinese interfaces. Firmware updates are supported through SD card or Ethernet; use firmware intended for the actual application and follow its update procedure.
    Optional burn-in application The catalog illustrates batch and production-date records, step monitoring, CC/CV/CP test procedures, reports, operator settings and alarms. These functions apply to the optional burn-in application and compatible equipment, not to every CMU2 application code.

    Application interfaces and wiring

    Parameter Details
    Enabled connector functions The optional CMU2A-#R# application matrix enables relays, CANBus and Ethernet only. It marks RS-485, RS-232, AIN, AOUT, DIN, DOUT and PMBus non-functional; the R-card code does not override that application limitation. Verify applicability to the actual supplied complete configuration.
    Relay rating Platform provision: four user-programmable relay channels, rated 30 V / 1 A. Use only the application’s supported relay functions.
    Relay connector 12-pin DECA MX422-25412 or equivalent. Relays 1/2/3/4 use pin groups 1–3 / 4–6 / 7–9 / 10–12 respectively; each group is NO, NC, COM in ascending pin order.
    CANBus connector pins For the enabled CANBus interface: pins 4/12 = remote ON/OFF CONTROL, 6/14 = CAN-H, 7/15 = CAN-L, 8/16 = FG; pins 1, 2, 3, 5, 9, 10, 11 and 13 are NC. Signals are isolated with FG as reference; confirm the complete burn-in build before wiring.
    Analog I/O availability The shared platform specification lists five 0–10 V analog outputs and five 0–10 V analog inputs with 12-bit resolution. These analog functions are marked non-functional for the listed A application configurations.
    Ethernet connector RJ45: pin 1 TX+, 2 TX−, 3 RX+, 6 RX−; pins 4, 5, 7 and 8 are FG. Do not confuse Ethernet with the physically similar PMBus/CANBus connectors.

    Input, environment and standards

    Parameter Details
    Input voltage and frequency 85–264 VAC, 47–63 Hz; 120–370 VDC. Use the published operating range for the supplied unit; the AC connector labels do not establish a DC polarity assignment.
    Input current 0.6 A at 115 VAC; 0.4 A at 230 VAC.
    AC input connector Pin 1 = AC/N, pin 2 = AC/L, pin 3 = FG. Follow the input and grounding instructions for the supplied controller.
    Operating temperature −25°C to +60°C. The LCD may freeze below −20°C; this display limitation remains applicable within the controller’s stated operating range.
    Storage temperature −40°C to +60°C.
    Vibration 10–500 Hz, 2G, 10 minutes per cycle; 60 minutes along each X, Y and Z axis.
    Safety standards IEC 62368-1 and BS EN/EN 62368-1 approved.
    Withstand voltage Input–output: 3 kVAC; input–FG: 2 kVAC; output–FG: 0.7 kVDC. CN36 and CN37 are considered output for these tests.
    Insulation resistance Output–FG: 100 MΩ at 500 VDC, 25°C and 70% RH.
    EMC emissions BS EN/EN 55032 (CISPR 32): conducted Class B and radiated Class A; BS EN/EN 61000-3-2 and -3-3.
    EMC immunity BS EN/EN 61000-4-2, -3, -4, -5, -6, -8 and -11; the catalog also lists BS EN/EN 61000-6-1 with BS EN/EN 50082-2 in parentheses, light-industry level, criteria A.
    System integration The controller is a component. Catalog EMC tests cover the controller alone without connected control equipment; reconfirm EMC compliance in the final assembled equipment.

    Dimensions and mounting

    Parameter Details
    Dimensions 483.6 × 66.3 × 132 mm (L × W × H), 3U 19-inch rack-mount format. The drawing separately shows a 14.6 mm projecting rotary control; allow front operating clearance.
    Mechanical drawing Catalog general dimensional tolerance: ±1 mm. Rack slot center spacing is 466.2 mm horizontally and 80 mm vertically; follow the full mounting-slot drawing.
    Mounting Install in a compatible 19-inch rack. Standalone wall, DIN-rail and desktop fittings are not the rack-mount arrangement.
    Mounting accessories The catalog’s DIN-rail bracket and desktop stand are for standalone installations; do not assume they are supplied with or suitable for this rack-mount unit.
    Unit mass 2160 g, catalog packing reference per unit (2.16 kg; 6 pieces / 14 kg / 2.91 CUFT). This is not a separately declared measured net mass.
    Manufacturer warranty reference The catalog states a five-year manufacturer warranty, subject to its applicable terms.

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