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Eltek / Site energy systems

Eltek Smartpack R Equipment information & support

The Eltek Smartpack R is a 1U rackmount supervisory controller engineered for large-scale Eltek Flatpack2 DC power plants, featuring integrated graphic LCD menu, Ethernet SNMP/Web surveillance, and intelligent multi-string battery management.

Equipment information

Brand
Eltek
Equipment model
Eltek Smartpack R
Equipment type
Site energy systems
Controller / software version
Confirm against the installed equipment
View full product specifications
Eltek Smartpack R Official Product View 3

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

System Output Capacity
Multifunctional Industrial Rack-Mount Power Controller A
Nominal Output Voltage
Dedicated for -48V DC
Output Voltage Range
RS485 (Standard Modbus-RTU) + Dry Contact Alarm VDC
AC Input Voltage Range
Internal DC power supply 18 ~ 75 VDC VAC
Rectifier Module Slots
1U drawer-type rack-panel installation Slots
System Monitoring Controller
Smartpack R drawer-type control unit

Alarms & troubleshooting

CAN_COMM_ERR (CAN-Bus Communication Loss Alarm)
Smartpack R Alarm LED solid red, Rectifier communication LED blinking yellow
Internal CAN communication bus ribbon cable loose between Smartpack R and Flatpack rectifiers/I/O monitor units, missing end-of-line bus terminator, or damaged transceiver
1. Inspect backplane RJ45/ribbon CAN bus cables, ensuring all rectifier sub-racks and Smartpack R ports are seated securely. 2. Measure terminal resistance between CAN_H and CAN_L using a digital multimeter; verify it reads approximately 60 Ohms (two 120 Ohm terminators in parallel). 3. Access controller UI or WebPower to check the node inventory, locate missing device IDs, and reseat the affected module.
LVBD_ACTIVE (Low Voltage Battery Disconnect Active)
Smartpack R Alarm LED solid red, internal buzzer sounding, critical relay contact energized
Extended AC mains outage causing battery discharge below LVBD disconnect threshold (typically 43.2V on 48V nominal systems), or contactor control coil wiring failure
1. Verify whether AC utility mains has recovered; ensure rectifiers have powered on and output DC voltage exceeds reconnect threshold. 2. Access Smartpack R menu, verify LVD status, or use Manual Override command to test contactor pull-in coil operation. 3. Measure voltage across the LVBD contactor coil terminal; if drive signal is present but contactor fails to close, replace the faulty magnetic contactor.
RECT_HVSD (Rectifier High Voltage Shutdown Lockout)
Faulty rectifier red LED solid on, Smartpack R displays Major Alarm with amber/red LED lit
Internal voltage feedback loop failure inside the Flatpack rectifier causing output surge above 59.5V, triggering selective hardware HVSD lockout
1. Identify the slot number of the rectifier reporting HVSD via the Smartpack R display or WebPower interface. 2. Disengage and pull the faulty rectifier out of the shelf slot; wait 3 minutes for internal bulk capacitors to fully discharge, then reinsert. 3. If the module trips into red HVSD lockout immediately upon reconnecting, internal power components are defective; replace the rectifier.
BATT_TEMP_HIGH (High Battery Temperature Alarm)
Smartpack R Warning LED solid amber, changes to red Alarm LED if critical shutdown threshold is exceeded
Battery compartment HVAC air conditioning failure, thermal runaway in aging VRLA cells, or short circuit/drift in external NTC temperature sensor
1. Measure actual battery block temperatures using an infrared thermometer to verify real thermal runaway versus false sensor reading. 2. If temperatures are normal, disconnect the temperature probe terminal on the Smartpack R and check resistance with a multimeter (~10k Ohms at 25°C for standard NTC). 3. If cells are physically hot (>50°C) or bulging, immediately lower float voltage via Smartpack R parameters and isolate the damaged string circuit breaker.
MAINS_FAIL (AC Mains Failure / Phase Loss)
Smartpack R Alarm LED solid red, Rectifier front green AC Input LEDs extinguished
Commercial utility power blackout, upstream AC distribution breaker tripped, input SPD backup fuse blown, or AC line voltage dropped below 85VAC lower threshold
1. Measure phase-to-phase and phase-to-neutral voltages at the AC distribution terminals with a True-RMS multimeter to confirm grid supply status. 2. Inspect cabinet AC main breakers and SPD disconnectors; test for short circuit traces, then reset tripped switches. 3. Verify AC voltage readings on the Smartpack R display; if prolonged utility outage is confirmed, initiate on-site backup diesel generator start.

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

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