Tel+86 17621197907Serving 56+ countries
RICEWIND

Vertiv / Power distribution units (PDU)

MC1GG Equipment information & support

Industrial-grade supervisory power controller and telemetry management terminal enabling precision metering, rectifier fleet dispatch, and multi-protocol integration.

Equipment information

Brand
Vertiv
Equipment model
MC1GG
Equipment type
Power distribution units (PDU)
Controller / software version
Confirm against the installed equipment
View full product specifications
Vertiv MC1GG Multi-Circuit AC Power Quality & Energy Supervisory Module (Smart Facility Node) Pure White Background Studio Photo 4

Information below comes from the current product catalogue. Confirm the controller, software version and configuration of the installed equipment separately.

Physical Dimensions
160 × 120 × 65 mm
Harmonic Analysis
2nd-31st Harmonics & Total THD
Input Frequency
45Hz-65Hz (0.01Hz Resolution)
Input Voltage Rating
380V 3-Phase / 220V 1-Phase Compatible
Physical Ports
10/100M RJ45 + Dual RS485
Active Energy Accuracy
Class 0.5S

Alarms & troubleshooting

COMM_TIMEOUT_FAIL / Communication Timeout Fault
Comm LED OFF or blinking Red, master controller reports offline
Reversed differential polarity, missing 120-ohm terminal resistor, or address collision
1. Probe differential lines with a DMM to verify correct signal polarity; 2. Confirm that the 120-ohm termination resistor is enabled on the bus ends; 3. Check baud rate (e.g. 9600bps) and unique slave address on master HMI.
VOLT_SAMPLE_OOR / Voltage Sampling Out-of-Range
Warning Amber LED solid, corresponding channel reading flashes
Grid voltage surge, loose voltage divider sensing lead, or disconnected sensor wire
1. Measure physical terminal voltage with a calibrated digital multimeter; 2. Tighten input terminal screws and check for oxidized wire contacts; 3. Re-zero calibration offset or adjust threshold parameters on configuration menu.
HARDWARE_STATUS_ERR / Self-Test & Watchdog Reset
Fault Red LED solid, internal alarm relay contact closed
Input power voltage sag below threshold, EEPROM CRC checksum mismatch, or oscillator drift
1. Confirm operating auxiliary power supply voltage is stable within rated bounds; 2. Power-cycle the unit for 10 seconds to initiate a clean hardware reset; 3. If failure persists, reflash factory firmware or replace the controller module.

Access Complete Maintenance & Full Alarm Troubleshooting Manual

This page lists high-frequency critical alarm codes commonly encountered in field maintenance. Comprehensive manufacturer troubleshooting matrices, board-level repair guides, detailed electrical schematics, and firmware commissioning manuals are delivered alongside equipment upon formal project procurement, accompanied by dedicated FAE technical support.

Contact Account Manager for Full Manual

Share on-site information

  1. 01

    Identify the exact model

    Record the nameplate, system model and controller or module model.

  2. 02

    Keep the alarm details

    Record the full alarm text, indicator colour, timing and whether it persists.

  3. 03

    Describe recent changes

    Note recent replacements, software updates or configuration changes.

Record information visible in the existing interface. Electrical measurements, disassembly and replacement should follow the applicable manufacturer's manual and be performed by qualified personnel.

Your model and these details will be added to the enquiry form for you to review before sending.

Related technical articles

Browse the technical guides or send a question about this model.

View all articles

Need a replacement module or supporting equipment?

Confirm the full model, system configuration and compatibility requirements before enquiring about suitable products.

Ask about suitable products

Have a model and an on-site issue?

Share the exact model, alarm text and observed symptoms to help identify relevant information and compatibility requirements.

Request technical support