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ETP48400-C9A2 Embedded Power
User Manual

4 Installation

Issue 05 (2020-04-07)

4.2 Installing a Subrack

Figure 4-3

Installing a subrack

4.3 Installing a Ground Cable

Figure 4-4

shows how to install a ground cable.

Ensure that the ground cable is installed securely. Inappropriate grounding may cause device
damage and even personal injury.

Summary of Contents for ETP48400-C9A2

Page 1: ...ETP48400 C9A2 Embedded Power User Manual Issue 05 Date 2020 04 07 HUAWEI TECHNOLOGIES CO LTD ...

Page 2: ...tomer All or part of the products services and features described in this document may not be within the purchase scope or the usage scope Unless otherwise specified in the contract all statements information and recommendations in this document are provided AS IS without warranties guarantees or representations of any kind either express or implied The information in this document is subject to c...

Page 3: ...tions The symbols that may be found in this document are defined as follows Symbol Description Indicates a hazard with a high level of risk which if not avoided will result in death or serious injury Indicates a hazard with a medium level of risk which if not avoided could result in death or serious injury Indicates a hazard with a low level of risk which if not avoided could result in minor or mo...

Page 4: ...05 2020 04 07 Updated 6 7 1 Optional Setting Parameters Before Using WebUI Added the SNMPv1 and SNMPv2 protocol description Issue 04 2019 08 30 Deleted contents about the app and WiFi Issue 03 2019 02 28 Optimized the content of the document Issue 02 2016 07 05 Deleted the content about ACDB3863 01 and DCDB48200 01 Chapter 4 Installation Modified 4 1 4 Rules for Removing a Protective Panel Chapter...

Page 5: ...ption 15 2 3 System Features 15 2 4 System Configurations 16 3 Components 17 3 1 Power Subrack ETP48400 C9A2 17 3 2 Rectifier 19 3 3 SMU02B 20 3 4 UIM02C 23 4 Installation 27 4 1 Installation Preparations 27 4 1 1 Tools 27 4 1 2 Installation Dimensions 28 4 1 3 Requirements for Cable Routing 28 4 1 4 Rules for Removing a Protective Panel 29 4 2 Installing a Subrack 30 4 3 Installing a Ground Cable...

Page 6: ...meters 44 6 5 Optional Setting Sensor Parameters 45 6 6 Optional Setting the Hibernation Parameter 46 6 7 Setting Communications Parameters 46 6 7 1 Optional Setting Parameters Before Using WebUI 46 6 7 2 Optional Setting Parameters Before Using NetEco 52 6 7 3 Optional Setting Parameters Before Using SNMP 54 6 8 Connecting the Battery Supply 55 6 9 Subsequent Operations 57 7 Maintenance 58 7 1 Ro...

Page 7: ...mponent Faults 67 7 3 1 Identifying AC SPD Faults 67 7 3 2 Identifying Circuit Breaker Faults 67 7 3 3 Identifying Rectifier Faults 67 7 3 4 Identifying SMU Faults 67 7 4 Replacing Components 68 7 4 1 Replacing a Rectifier 68 7 4 2 Replacing an SMU 69 7 4 3 Replacing the PCB of UIM02C 70 7 4 4 Replacing an AC SPD Module 72 7 4 5 Replacing a Circuit Breaker 73 A Technical Specifications 75 B Electr...

Page 8: ...ge are not covered under the warranty Follow local laws and regulations when installing operating or maintaining the equipment The safety instructions in this document are only supplements to local laws and regulations Huawei will not be liable for any consequences of the following circumstances Operation beyond the conditions specified in this document Installation or use in environments which ar...

Page 9: ...gure Follow the specified procedures for installation operation and maintenance Ensure that bolts are tightened with a torque wrench and marked using red or blue color Installation personnel mark tightened bolts in blue Quality inspection personnel confirm if the bolts are tightened and then mark them in red The marks should cross the edges of the bolts as shown in the following figure Before inst...

Page 10: ...the case of a fire immediately leave the building or the equipment area and turn on the fire alarm bell or make an emergency call Do not enter the building on fire in any case Do not stop using protective devices Pay attention to the warnings cautions and related precautionary measures in this document and on the equipment Promptly replace warning labels that have worn out Keep irrelevant people a...

Page 11: ...tial bonding This symbol is found with equipotential terminals inside equipment Indicates electrostatic discharge ESD This symbol is used in all electrostatic sensitive areas Before operating equipment in these areas wear ESD gloves or an ESD wrist strap Indicates that the equipment is safe to use at altitudes below 2000 m 6561 6 ft Indicates that the equipment is not safe to use in tropical clima...

Page 12: ...nals personnel who are trained or experienced in equipment operations and are clear of the sources and degree of various potential hazards in equipment installation operation and maintenance Trained personnel personnel who are technically trained have required experience are aware of possible hazards on themselves in certain operations and are able to take protective measures to minimize the hazar...

Page 13: ...wer supply ensure that cable connections are correct If the equipment has multiple inputs disconnect all the inputs before operating the equipment Cabling When routing cables ensure that a distance of at least 30 mm exists between the cables and heat generating components or areas This prevents damage to the insulation layer of the cables Do not route cables behind the air intake and exhaust vents...

Page 14: ...secured and will not tilt or fall down due to loss of balance which can cause personal injury or equipment damage Do not expose the equipment to flammable or explosive gas or smoke Do not perform any operation on the equipment in such environments Installation at Heights Working at heights refers to operations that are performed at least 2 meters above the ground Do not at heights in any of the fo...

Page 15: ...eople to stay or pass under the area involving working at heights Inspect the scaffolding springboards and workbenches used for working at heights in advance to ensure that their structures are solid and not overloaded Dismantle the scaffolding from top down after finishing the job Do not dismantle the upper and lower layers at the same time When removing a part ensure that other parts will not co...

Page 16: ...pes are secured and the ladder is held firm Before using a ladder check that it is intact and confirm its load bearing capacity Do not overload it Ensure that the wider end of the ladder is at the bottom or protective measures have been taken at the bottom to prevent the ladder from sliding Ensure that the ladder is securely positioned The recommended angle for a ladder against the floor is 75 deg...

Page 17: ... drilling holes into a wall or floor observe the following safety precautions Do not drill holes into the equipment Doing so may affect the electromagnetic shielding of the equipment and damage components or cables inside Metal shavings from drilling may short circuit boards inside the equipment Wear goggles and protective gloves when drilling holes When drilling holes protect the equipment from s...

Page 18: ...tteries for example insert sundries into batteries or immerse batteries in water or other liquids When replacing a battery use a battery of the same model or type Improper replacement may cause the battery to explode Do not connect a metal conductor to the battery poles or touch the battery terminals Otherwise the battery may be short circuited and heat up which can cause injuries such as burning ...

Page 19: ...e the polarities when installing batteries Do not short circuit the positive and negative poles of the same battery or battery string Otherwise the battery may be short circuited When installing a battery string retain at least one breakpoint to prevent a loop being formed After checking that the installation is correct close the breakpoints to finish the installation During the installation insul...

Page 20: ...hose electrolyte leaks note that the leaking electrolyte may hurt human bodies If the electrolyte overflows follow the instructions of the battery manufacturer or neutralize the electrolyte by using sodium bicarbonate NaHCO3 or sodium carbonate Na2CO3 Lithium Battery The safety precautions for lithium batteries are similar to those for lead acid batteries except that you also need to note the prec...

Page 21: ...8400 C9A2 Embedded Power User Manual 1 Safety Precautions Issue 05 2020 04 07 Copyright Huawei Technologies Co Ltd 14 When maintenance is complete return the waste lithium battery to the maintenance office ...

Page 22: ...model number description for the ETP48400 C9A2 Figure 2 1 Model number description for the ETP48400 C9A2 2 3 System Features Rectifier voltage input range of 85 V AC to 300 V AC Comprehensive battery management Network application over a fast Ethernet FE port and an RS485 RS232 port Communication with Huawei NetEco or third party network management systems NMSs over protocols such as the Simple Ne...

Page 23: ...o 2 4 System Configurations Table 2 1 describes configurations of the ETP48400 C9A2 Table 2 1 ETP48400 C9A2 configurations Item Configurations Subrack 3 U DC power distribution space 1 U SMU 2 U rectifier space 3 U AC power distribution space PDU AC power distribution AC input circuit breaker and AC output circuit breaker DC power distribution battery low voltage disconnection BLVD route load low ...

Page 24: ...es Co Ltd 17 3 Components 3 1 Power Subrack ETP48400 C9A2 Appearance Figure 3 1 shows an ETP48400 C9A2 Figure 3 1 ETP48400 C9A2 appearance 1 DC PDU 2 SMU02B 3 Space for rectifiers 4 AC PDU 5 Ground screw 6 UIM02C Before delivery the RTN busbar is short circuited with the subrack PE terminal by default ...

Page 25: ...it breakers Figure 3 3 AC PDU without cover 1 AC input circuit breakers and terminals 2 AC SPD 3 AC output circuit breakers 4 N busbar 5 PE busbar Table 3 1 Specifications Item Specifications Input system 220 380 V AC three phase four wire AC power distribution AC input one 3 pole 100 A circuit breaker AC output one 3 pole 63 A and three 1 pole 32 A circuit breakers DC power distribution BLVD rout...

Page 26: ...t indicator 4 Locking latch 5 Handle Table 3 2 Rectifier indicator description Indicator Color Status Description Run indicator Green Steady on The rectifier has an AC power input Off The rectifier has no AC power input The rectifier is faulty Blinking at 0 5 Hz The rectifier is being queried Blinking at 4 Hz The rectifier is loading an application program Alarm indicator Yellow Off No alarm has b...

Page 27: ...ating Blinking at 0 5 Hz The communication between the rectifier and the SMU has been interrupted Fault indicator Red Off The rectifier is running properly Steady on The rectifier has been locked out due to output overvoltage The rectifier has no output due to an internal fault 3 3 SMU02B Panel Figure 3 5 SMU02B panel 1 Run indicator 2 Minor alarm indicator 3 Major alarm indicator 4 Buttons 5 USB ...

Page 28: ...dicator Red Off No critical or major alarm is generated Steady on A critical or major alarm is generated Buttons Table 3 4 Button description Button Name Description Up Press Up and Down to scroll through the menus or to change the value of a parameter Down Cancel Returns to the previous menu without saving the settings Enter Enters the main menu from the standby screen Enters a submenu from the m...

Page 29: ...ovided by another vendor may cause data loss or function exception Consequences arising from this will not be borne by Huawei Communications Ports Table 3 5 Communication port description Communications Port Communications Parameter Communications Protocol FE 10 100M autonegotiation HTTPS NetEco protocol SNMP and TCP Modbus protocol RS485 RS232 Baud rate 1200bit s 2400bit s 4800bit s 9600bit s 144...

Page 30: ... 2 TX 4 RX Receives data over RS485 5 RX 3 RX232 Receives data over RS232 7 TX232 Transmits data over RS232 6 PGND Connects to the ground 8 NA 3 4 UIM02C Panel The user interface module UIM02C supports eight dry contact outputs six dry contact inputs and seven sensor ports including one ambient temperature and humidity input one water sensor input two ambient temperature inputs one door status sen...

Page 31: ...or BTEMP Battery temperature sensor Dry contact input ports DIN1 NOTE For the associations between the dry contact input ports and alarms see the appendix DIN2 DIN3 DIN4 DIN5 DIN6 Dry contact output ports ALM1 NOTE For the associations between the dry contact output ports and alarms see the appendix ALM2 ALM3 ALM4 ALM5 ALM6 ALM7 ALM8 Communications port COM RS485 port Communication Port Table 3 9 ...

Page 32: ...col lower level devices such as the battery inspection unit DC air conditioner NOTE The COM port supports the security mechanism Figure 3 8 Pins in the COM port Table 3 10 Pin definitions for the COM port Pin Signal Description 1 RX Receives data over RS485 2 RX 4 TX Sends data over RS485 5 TX 6 PGND Connects to the ground 3 7 8 None N A Pins Figure 3 9 shows the pin numbers of the sensor ports Ta...

Page 33: ...hnologies Co Ltd 26 Figure 3 9 UIM02C pin numbers Table 3 11 UIM02C pin definitions Silkscreen No Pin Definitions TEM HUM 1 12 V 2 ENV_TEMP 3 12 V 4 ENV_HUM WATER 1 12 V 2 WATER 3 GND 4 Not defined TEMP1 1 GND 2 TEMP1 TEMP2 1 GND 2 TEMP2 GATE 1 GATE 2 GATE SMOKE 1 SMOKE 2 12V BTEMP 1 GND 2 BTEMP ...

Page 34: ...stallation Issue 05 2020 04 07 Copyright Huawei Technologies Co Ltd 27 4 Installation 4 1 Installation Preparations 4 1 1 Tools Use tools with insulated handles The following table is for reference only Table 4 1 Installation tools and instruments ...

Page 35: ...outing Ensure that cables are more than 20 mm away from heat sources to prevent damage melting aging or breakage to the cable insulation layer Ensure that the bending radius of each cable is at least five times the diameter of the cable Bind cables of the same type together When routing cables of different types ensure that they are at least 30 mm away from each other Route and bind cables so that...

Page 36: ...Do not join or weld power cables If necessary use a longer cable 4 1 4 Rules for Removing a Protective Panel When installing a subrack in a cabinet remove the entire protective panel When installing a subrack in an open subrack tailor the protective panel based on the cross sectional area of the cable bundle for routing cables Figure 4 2 Tailoring a protective panel 1 Protective panel ...

Page 37: ...Huawei Technologies Co Ltd 30 4 2 Installing a Subrack Figure 4 3 Installing a subrack 4 3 Installing a Ground Cable Figure 4 4 shows how to install a ground cable Ensure that the ground cable is installed securely Inappropriate grounding may cause device damage and even personal injury ...

Page 38: ...your local Huawei office The rectifier slot presents a risk of electric shock Do not touch the slot with your hands High temperature is generated around the air exhaust vent when the rectifier is running Do not touch the vent with your hands or cover the vent with cables or other objects Procedure Step 1 Push the locking latch towards the left Step 2 Draw the handle downwards Step 3 Gently push th...

Page 39: ...act Signal Cables Procedure Step 1 Press the contact plate using a flat head screwdriver to flip the metal spring inside each dry contact Step 2 Connect the signal cables to the corresponding dry contacts Step 3 Remove the flat head screwdriver and check that the signal cables are connected securely Figure 4 6 Installing a dry contact signal cable 1 Contact plate 2 Dry contact port End ...

Page 40: ...Management Procedure Step 1 Connect the FE port on the site monitoring unit SMU by using a network cable as shown in Figure 4 7 Figure 4 7 Connecting a communications cable for WebUI management 1 User WebUI terminal 2 FE port on the SMU End 4 6 2 NetEco Management Networking Mode 1 FE Port Step 1 Connect the FE port on the SMU by using a network cable as shown in Figure 4 8 ...

Page 41: ... Co Ltd 34 Figure 4 8 Connecting a communications cable over the FE port 1 User NetEco terminal 2 FE port on the SMU End Networking Mode 2 RS485 Port Step 1 Connect one end of a network cable to the RS485 RS232 port on the SMU Step 2 Connect the other end to the MON1 port on the BBU as shown in Figure 4 9 ...

Page 42: ...awei Technologies Co Ltd 35 Figure 4 9 Connecting a communications cable over the RS485 port 1 RS485 RS232 port on the SMU 2 MON1 port on the BBU End 4 6 3 Third Party NMS Management over SNMP Procedure Step 1 Connect the FE port on the SMU by using a network cable as shown in Figure 4 10 ...

Page 43: ...input circuit breaker is OFF and attach labels such as No operations allowed Switch off all circuit breakers before installing power cables Procedure Step 1 Remove the front panel of the DC PDU Step 2 Route DC output power cables through the protective board on the top of the subrack Step 3 Secure the negative DC output power cable to the corresponding DC output circuit breaker based on the actual...

Page 44: ...C9A2 Embedded Power User Manual 4 Installation Issue 05 2020 04 07 Copyright Huawei Technologies Co Ltd 37 Figure 4 11 Installing DC output power cables 1 DC load End 4 8 Installing Battery Cables Prerequisites ...

Page 45: ...r more battery terminals Do not use metal to simultaneously touch battery terminals and grounded objects for example battery compartment otherwise transient short circuit occurs which produces sparks or explosion During battery installation never short circuit or reversely connect positive and negative battery terminals Connect the negative battery cable before the positive battery cable Secure ba...

Page 46: ... 12 Installing battery cables 1 Battery string 1 End 4 9 Installing AC Output Power Cables Prerequisites Ensure that the upstream AC input circuit breaker is OFF and attach labels such as No operations allowed Switch off all circuit breakers before installing power cables Procedure Step 1 Remove the front panel of the AC PDU ...

Page 47: ...bles to corresponding AC output circuit breakers and terminals Figure 4 13 InstallingAC output power cables 1 AC load End 4 10 Installing 220 380 V AC Three Phase Four wire Input Power Cables Procedure Step 1 Route 220 380 V AC three phase four wire input power cables through the protective board at the bottom of the subrack Step 2 Secure the AC input power cables to corresponding AC input circuit...

Page 48: ...ded Power User Manual 4 Installation Issue 05 2020 04 07 Copyright Huawei Technologies Co Ltd 41 Figure 4 14 Installing 220 380 VAC three phase four wire input power cables 1 Alternating current distribution box ACDB End ...

Page 49: ... are OFF or all fuses are disconnected Check that flat washers and spring washers are securely installed for all OT terminals and that all the OT terminals are intact and properly connected Check that batteries are correctly installed and that battery cables are correctly connected and not short circuits exist Check that input and output power cables and ground cables are correctly connected and n...

Page 50: ...rrents Check that the status of a unit or component meets requirements before turning on its switch If you are maintaining or servicing equipment and do not want others to perform any operation attach the label Currently being serviced Do not switch on to the equipment During commissioning shut down the power system immediately if any fault is detected Rectify the fault start the power system and ...

Page 51: ... 6 1 Setting the date and time Main Menu Second Level Menu Third Level Menu Default Value Settings Setting Wizard Date and Time NOTE The date and time vary with time zones Set the time zone date and time based on the local situation Time Zone UTC 08 00 Beijing Set to the local time zone Date and Time Set to the local date and time NTP Enable No Yes No NOTE Set the parameter to Yes if you need to s...

Page 52: ...s 1 and 2 are respectively connected to a battery string each battery string consists of four 12 V 150 Ah batteries in series set Battery1 Connected and Battery2 Connected to Yes and others to No and set Rated Capacity to 150 Ah If battery route 1 is connected to two battery strings in parallel each battery string consists of four 12 V 150 Ah batteries in series set Battery1 Connected to Yes and o...

Page 53: ...ameters Settings Energy Saving Hibernation Enable No Yes 6 7 Setting Communications Parameters 6 7 1 Optional Setting Parameters Before Using WebUI Operating Environment Supported operating system Windows XP or later Browser Internet Explorer 8 0 or later FireFox 13 or later or Chrome 20 Internet Explorer is used as an example to illustrate all WebUI operations mentioned in this document Setting a...

Page 54: ...o Ltd 47 Step 1 Open Internet Explorer Step 2 Choose Tools Internet Options Step 3 Click the Connections tab and click LAN settings Step 4 Clear Use a proxy server for your LAN as shown in Figure 6 1 Figure 6 1 Canceling proxy server settings 1 Figure 6 2 Canceling proxy server settings 2 Step 5 Click OK End ...

Page 55: ...iles Upgrade software To set Internet Explorer security perform the following steps Step 1 Open Internet Explorer Step 2 Choose Tools Internet Options Step 3 Click the Security tab Step 4 Click Internet and click Custom level as shown in Figure 6 3 After you specify Internet security settings click Local intranet and click Custom level Figure 6 3 Internet Explorer security Step 5 Specify the secur...

Page 56: ... Issue 05 2020 04 07 Copyright Huawei Technologies Co Ltd 49 Include local directory path when uploading files to a server Automatic prompting for file downloads Figure 6 4 Internet Explorer security setting 1 Figure 6 5 Internet Explorer security setting 2 ...

Page 57: ...Issue 05 2020 04 07 Copyright Huawei Technologies Co Ltd 50 Figure 6 6 Internet Explorer security setting 3 Figure 6 7 Internet Explorer security setting 4 Step 6 Click OK Step 7 Click the Advanced tab and select all of Use TLS 1 0 Use TLS 1 1 and Use TLS 1 2 ...

Page 58: ... a fixed IP address Step 2 Set the IP address subnet mask and gateway on the SMU s LCD Table 6 5 IP parameters Main Menu Second Level Menu Third Level Menu Default Value Settings Setting Wizard Network Parameters IP Address 192 168 0 10 Set this parameter according to the address provided by the network administrator Subnet Mask 255 255 255 0 Set this parameter according to the subnet mask provide...

Page 59: ...and press Enter The login page is displayed as shown in Figure 6 9 Figure 6 9 Login page The preset user name is admin and the preset password is Changeme 6 7 2 Optional Setting Parameters Before Using NetEco Networking Mode 1 FE Port Step 1 Apply to the site or equipment room network administrator for a fixed IP address Step 2 Set the IP address subnet mask and gateway on the SMU s LCD Table 6 6 ...

Page 60: ... Second Level Menu Third Level Menu Fourth Level Menu Default Value Settings Parameters Settings Comm Parameters Network Parameters NetEco Primary IP 192 168 0 10 Set an IP address for the active NetEco server NetEco Backup IP 192 168 0 10 Set an IP address for the standby NetEco server NetEco Port Number 31220 31220 NOTE Please contact Huawei technical support if you need change the port number E...

Page 61: ...tion Description SNMP version SNMP version and port number used by the SMU and NMS The SNMP versions include SNMPv1 SNMPv2c and SNMPv3 SNMP Port Number Read Community Name If you use SNMPv1 or SNMPv2c enter the read community name and write community name that comply with the NMS Otherwise the SMU will not connect to the NMS The read community name must be different from the write community name W...

Page 62: ... SNMPv3 and set User Name MD5 SHA Password and DES AES Password Then click Confirm SNMPv1 or SNMPv2c Set SNMP Version to SNMPv1 SNMPv2c in SNMP and set SNMP Port Number Read Community Name and Write Community Name SNMPv3 Set SNMP Version to SNMPv3 in SNMP click Add in SNMPv3 and set User Name MD5 SHA Password and DES AES Password Then click Confirm Step 3 In SNMP Trap click Add set Trap Target Add...

Page 63: ...rly connected Step 3 Observe the batteries for 15 minutes The batteries are running properly if the alarm indicators are off Step 4 Switch all the circuit breakers to the appropriate status based on site requirements Step 5 Observe the power system for 15 minutes During this period of time if no alarm except for the door status alarm is generated on the LCD of the SMU the voltages and currents for...

Page 64: ...hnologies Co Ltd 57 6 9 Subsequent Operations Procedure Step 1 Reinstall the removed cover or panel if any Step 2 Check whether the paint on the subrack exterior is intact If any paint has flaked repaint the area to avoid corrosion Step 3 Ensure that the site is clean before you leave the site End ...

Page 65: ...voltage is normal Clamp meter The AC input voltage is beyond the normal range For details see 7 3 Identifying Component Faults The output voltage is normal The battery branch or load branch voltage exceeds the specified range 42 V DC to 58 V DC Preventive maintenance inspection The indicators are normal Observe indicators Alarms are generated Grounding The ground point properly connects to the gro...

Page 66: ...sible Causes The AC overvoltage alarm threshold is incorrectly set on the SMU The power grid is faulty Measures 1 Check whether the AC overvoltage alarm threshold is correctly set If not set the threshold to the correct value 2 Check whether the AC input voltage exceeds the AC overvoltage alarm threshold 280 V AC by default If so handle the AC input fault 7 2 3 AC Under Volt Possible Causes The AC...

Page 67: ...manually set to a very low value Rectifiers are faulty Measures 1 Check whether an AC power failure has occurred If so rectify the fault to restore the AC power supply 2 Check whether the DC undervoltage alarm threshold 45 V DC by default is correctly set If not set the threshold to the correct value 3 Check whether the load current is greater than the present power system capacity If so expand th...

Page 68: ...r failure has occurred Batteries are manually disconnected The battery disconnection voltage has been set to a very high value on the SMU Measures 1 Check whether an AC power failure has occurred If so rectify the fault to restore the AC power supply 2 Check whether batteries are manually disconnected If so check with other maintenance personnel whether the batteries can be reconnected 3 Check whe...

Page 69: ...he alarm is cleared when the cabinet temperature falls within the allowed range 3 Check whether the ambient temperature sensor is faulty If yes replace the temperature sensor 7 2 11 Low Amb Temp This alarm is generated only for the power system that has an ambient temperature sensor installed Possible Causes The low ambient temperature alarm threshold is incorrectly set The temperature control sys...

Page 70: ... the cabinet where the humidity sensor is located The humidity sensor is faulty Measures 1 Check whether the low humidity alarm threshold 10 RH by default is correctly set If no adjust it to a proper value 2 Check whether the humidity inside the cabinet is too low If yes adjust the humidity The alarm is cleared when the humidity returns to the allowed range 3 Check whether the humidity sensor is f...

Page 71: ...ot set the threshold to the correct value 2 Check whether the temperature control system for the battery compartment is faulty If so rectify the fault The alarm is cleared when the temperature in the battery compartment becomes normal 3 Check whether the battery temperature sensor is faulty If so replace the battery temperature sensor 7 2 16 Door Alarm This alarm is generated only for the power sy...

Page 72: ...he SMU 2 Check whether the smoke sensor is faulty If the smoke sensor is faulty replace it 7 2 19 Rect Fault Possible Causes Rectifier connections are loose A rectifier is faulty Measures 1 Check the Fault indicator on the rectifier panel If it is steady red remove the rectifier and then reinstall it after the indicator turns off 2 If the alarm persists replace the rectifier 7 2 20 Rect Protection...

Page 73: ...er and reinstall it 3 If the alarm persists replace the rectifier 7 2 22 Load Loop Break Possible Causes The load circuit breaker has tripped or the load fuse has blown The load circuit breaker or the fuse detection cable is disconnected Measures 1 Check whether the load circuit breaker has tripped or the load fuse has blown If so locate and rectify the circuit fault and then switch on the circuit...

Page 74: ...ectifier Faults A rectifier is damaged if any of the following conditions is not met When the rectifier does not communicate with the SMU and the AC input voltage is around 220 V the green indicator on the rectifier is steady on the yellow indicator is blinking the red indicator is off and the rectifier output is normal The SMU can perform equalized charging float charging and current limiting con...

Page 75: ... off the battery switch and the AC input switch at the same time Obtain prior written consent from the customer if load disconnection is required Do not perform maintenance on rainy days Otherwise rain water can enter the system and damage devices and components 7 4 1 Replacing a Rectifier Prerequisites Protective gloves and the cabinet door key are available The new rectifier is intact To prevent...

Page 76: ...e entry of the correct slot Step 6 Gently slide the rectifier into the slot along the guide rails until it is engaged Close the handle and push the locking latch towards the right to lock the handle as shown in Figure 7 2 Figure 7 2 Installing a rectifier Step 7 Remove the protective gloves End Follow up Procedure Pack the removed component and send it to the local Huawei warehouse 7 4 2 Replacing...

Page 77: ... SMU into the subrack slowly along the guide rails push in the handle and then push the locking latch towards the right Step 5 Reset the parameters on the SMU Figure 7 4 Installing an SMU End Follow up Procedure Pack the removed component and send it to the local Huawei warehouse 7 4 3 Replacing the PCB of UIM02C Prerequisites You have obtained an ESD wrist strap a pair of ESD gloves an ESD box or...

Page 78: ... panel for connecting signal cables and disconnect the cables Step 3 Unscrew and remove the UIM02C as shown in Figure 7 5 Figure 7 5 Taking out the UIM02C Step 4 Record the positions where the PCB connects to all the cables and then disconnect the cables Step 5 Remove the PCB Figure 7 6 Removing the PCB of UIM02C Step 6 Take out the new PCB and install it ...

Page 79: ...nd Follow up Procedure Pack the removed component and return it to Huawei local warehouse 7 4 4 Replacing an AC SPD Module Prerequisites An ESD wrist strap ESD gloves ESD box or bag and cabinet door key are available The new AC SPD module is intact and has the same specifications as the AC SPD module to be replaced Do not replace an AC SPD module during a thunderstorm Procedure Step 1 Connect the ...

Page 80: ...the upstream input circuit breaker The cabinet door key insulation tape and required tools are available The new circuit breaker is intact and has the same specifications as the circuit breaker to be replaced Procedure Step 1 Unscrew and remove the cover of the circuit breaker Step 2 Switch off the circuit breaker Step 3 Record the positions where the cables and signal cable terminals connect to t...

Page 81: ... buckle at the base of the circuit breaker using an insulated flat head screwdriver and install the new circuit breaker Then remove the screwdriver so that the buckle secures the circuit breaker to the guide rail Step 8 Tighten the screw that secures the lower port of the circuit breaker Step 9 Remove the insulation tape from the output power cable and signal cable terminals Then connect the power...

Page 82: ...When the altitude ranges from 2000 m to 4000 m the operating temperature decreases by 1 C for each additional 200 m Table A 2 Electrical specifications Item Specifications AC input Input system 220 380 V AC three phase Input frequency 45 66 Hz rated frequency 50 Hz or 60 Hz Power factor PF 0 99 rated input with 100 loads DC output Output voltage range 42 V DC to 58 V DC Default output voltage 53 5...

Page 83: ...put protection DC output overvoltage protection threshold 58 5 V DC to 60 5 V DC If overvoltage occurs inside a rectifier the rectifier locks out If the external voltage is greater than 63 V DC for more than 500 ms the rectifier locks out AC surge protection Nominal lightning strike discharge current 20 kA 8 20 µ s maximum lightning strike discharge current 40 kA 8 20 µ s DC surge protection Diffe...

Page 84: ...eld strength Conducted susceptibility CS IEC 61000 4 6 Power port 10 V signal port 3 V Surge immunity IEC 61000 4 5 AC and DC power ports 2 kV 8 20 µ s in differential mode 4 kV 8 20 µ s in common mode Voltage dips immunity DIP IEC 61000 4 11 Table A 4 Subrack specifications Item Specifications Cabinet dimensions H x W x D 397 3 mm x 482 mm x 330 mm Weight 30 kg excluding rectifiers Protection lev...

Page 85: ...ETP48400 C9A2 Embedded Power User Manual B Electrical Schematic Diagram Issue 05 2020 04 07 Copyright Huawei Technologies Co Ltd 78 B Electrical Schematic Diagram Figure B 1 Electrical schematic diagram ...

Page 86: ...ry contact input 3 DIN4 Dry contact input 4 DIN5 Dry contact input 5 DIN6 Dry contact input 6 Dry contact output The default setting closed alarm open normal can be modified ALM1 AC Failure Long Mains Failure ALM2 DC Ultra Overvoltage DC Overvoltage DC Ultra Undervoltage DC Undervoltage ALM3 Rectifier Fault Rectifier Protection Rectifier Communication Failure Rectifier Fault Redundant Rectifier Fa...

Page 87: ...CDB alternating current distribution box B BBU baseband unit BLVD battery low voltage disconnection D DCDB direct current distribution box E EFT electrical fast transient EMC electromagnetic compatibility ESD electrostatic discharge H HTTPS Hypertext Transfer Protocol Secure I IP Internet Protocol L LCD liquid crystal display LLVD load low voltage disconnection ...

Page 88: ...7 Copyright Huawei Technologies Co Ltd 81 M MTBF mean time between failures P PDU power distribution unit R RS radiated susceptibility S SMU site monitoring unit SNMP Simple Network Management Protocol SPD surge protection device T THD total harmonic distortion U UIM user interface module ...

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