Why is the major alarm indicator (red) steady on for my Huawei SMU01C?
The major alarm indicator being steadily on indicates that a major alarm has been generated. To resolve this, identify and rectify the faults based on the alarm information displayed on the LCD.
What to do if the Run indicator (green) blinks at 4 Hz on a Huawei SMU01C Control Unit?
If the Run indicator (green) is blinking at 4 Hz, it means the communications with the COM port has failed. To fix this, ensure that the communication cables are correctly connected and then reset the SMU01C.
General| Brand | Huawei |
|---|---|
| Model | SMU01C |
| Category | Control Unit |
| Language | English |
Describes the SMU01C's modules, panels, ports, LCD, operations, installation, and troubleshooting.
Lists target users: sales engineers, technical support, and maintenance personnel.
Defines symbols used in the document: DANGER, WARNING, CAUTION, and NOTICE.
Provides a visual description of the SMU01C unit and its front panel.
Illustrates the network connections and components associated with the SMU01C.
Lists the main capabilities of the SMU01C, such as dry contact support and hot-swappability.
Details categorized functions including battery and rectifier management.
Describes the status and meaning of the SMU01C's indicator lights.
Explains the function of each button for navigation and parameter setting.
Details COM and RS485/RS232 ports, specifications, and protocol compliance.
Provides step-by-step instructions for physical installation of the SMU01C unit.
Guides connection of dry contact and boolean signal cables to the SMU01C.
Presents a diagram of the SMU01C's menu structure for LCD operation.
Explains the meaning of symbols used within LCD menus for parameter selection.
Explains how to select the display language (English/Chinese) on the SMU01C.
Describes how to view real-time system data like voltage and load current on the LCD.
Details changing the default password for accessing Settings and Maintenance menus.
Explains essential parameters for managing lead-acid batteries.
Covers SMU01C communication settings, such as address and baud rate.
Explains VRLA battery charging, covering principles and parameters for float and boost.
Details BLVD and LLVD features for protecting batteries from over-discharge.
Describes viewing real-time rectifier status like DC voltage and output current.
Explains configuring rectifiers for hibernation to improve efficiency and save energy.
Guides checking the SMU01C's software version via the LCD.
Provides instructions on setting the system's date and time through the LCD.
Explains configuring the SMU01C for different subrack types.
Covers setting alarms, severity, and associating dry contacts for input/output ports.
Explains modifying default severity levels for various alarms.
Details connecting devices to DIN ports and associating their status with alarms.
Describes mapping specific alarms to output ports like ALM1-ALM4.
Guides displaying currently active alarms on the SMU01C's LCD.
Explains accessing and viewing past alarms stored on the SMU01C.
Provides instructions to clear stored historical alarm records from the SMU01C.
Lists specific alarms with their causes and troubleshooting measures.
Lists common faults, causes, and troubleshooting measures for the SMU01C.
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