UNIPOWER Guardian Bulk M42 DC Power Systems

The UNIPOWER Guardian Bulk M42 is a 10RU high 19” rack-mounted, 1200 Amp DC power system providing a bulk output of -48VDC. Alpine Power Systems is an approved distributor of UNIPOWER products. The UNIPOWER Guardian Bulk M42 has a three year warranty.

The Guardian Bulk M42 1200 Amp DC power system incorporates 6 rectifier shelves accommodating up to 23 Guardian family high efficiency hot-swap rectifiers. A maximum total current of 1200A (N+1) is available.

The rectifiers are internally fan cooled with speed control which is a function of load and temperature, keeping acoustic noise to a minimum.

Guardian Bulk M42 1200 Amp DC power system incorporates the ACX Advanced controller which monitors system parameters, controls rectifier output, and provides alarms for system failures. The controller is hot-pluggable for easy field replacement in case of failure. There are 2 LED alarm indicators which indicate failures, (RED) Alarm and (YELLOW) Message. A third green LED indicates the controller is working properly. As standard ten form-C relay outputs provide the alarms for remote use. Two digital inputs and outputs are also provided as well as an SD card with sufficient capacity for more than 20 years data logging. The controller can be programmed by means of a remote PC web page display. Communication is by Ethernet LAN with SNMPv3 including alarm trapping. It also has provision for temperature compensated charging of an external battery. An LCD Display/Touchpad is included for local metering, status, and setup.

Guardian Bulk M42 1200 Amp DC power system is compatible with UNIPOWER’s free PowCom™ software which offers local and remote management through an advanced Windows GUI.

UNIPOWER Guardian Bulk M42 Features & Options:

• >96% Efficiency Rectifiers

• 1200A (N+1) Capacity

• Remote Monitoring & Control

• Field Replaceable Controller

• Ethernet Comm. with SNMPv3

• 3 LED Alarm/Status Indicators

• 10 Form-C Relay Alarms

• LCD Display/Touchpad

• Easy Installation

UNIPOWER Guardian Bulk M42 Output:

System Voltage: -48VDC nominal | -53.5 float (factory default setting, user adjustable)

Maximum Capacity:

• Load - 1200A

No. Rectifier Slots: 23

DC Connections: Lugs - ½” on 1¾” centers or ⅜” on 1” centers with oversized washers.

UNIPOWER Guardian Bulk M42 Input:

Voltage (rectifier module): 1-phase 180-275VAC

AC Supply Configurations:

• 1-phase 230/240VAC (L-N-PE)

• 2-phase 240VAC (L1-L2-PE)

• 3-phase (3-wire Wye) - 190/200/216/208/220/240VAC (L1-L2-PE / L2-L3-PE / L3-L1-PE)

• 3-phase (4-wire Delta) - 200/210/220/230/240VAC (L1-N-PE / L2-N-PE / L3-N-PE)

Frequency: 47-63Hz

Maximum Input Current: 17A per installed rectifier

Rectifier Power Factor: >0.98 (typical)

UNIPOWER Guardian Bulk M42 Monitoring & Control (ACX Advanced Controller):

Alarm Relays: 10 standard

Local Interface: 4 x 20 LCD, 4-key menu, USB / RS232, microSD card slot (4GB max,) for data logging

Remote Interface:

• Ethernet / Modem using PowCom software package

• Ethernet port allows monitoring and control over a TCP/IP network.

• Web browser support + SNMPv3

LED Indications:

• Green - System ON

• Yellow - Message(s)

• Red LED - Alarm(s)

External Digital I/O: 2 x Inputs, 2 x Outputs (TTL Level)

UNIPOWER Guardian Bulk M42 Battery Management:

Symmetry Inputs: 6 or 12 (can be redefined as analog inputs up to 100VDC)

Low Voltage Battery Disconnect (LVD): Optional external: Programmable via system controller

Temperature Compensated Charging: Programmable via system controller

UNIPOWER Guardian Bulk M42 Compliance:

EMC: EN 300 386 ; EN61000-6-3 (Emission) ; EN61000-6-2 (Immunity)

Safety: IEC60950-1:2005 2 Ed. +A1:2009

UNIPOWER Guardian Bulk M42 Environmental:

Operating Temperature: -40ºC to +55ºC

Storage Temperature: -40ºC to +85ºC

UNIPOWER Guardian Bulk M42 Dimensions, Ins. (Mm):

Width: 19.0 (483)

Height: 10RU

Depth: 21.6 (553)

UNIPOWER Guardian Bulk M42 Intelligent Battery Management:

Battery Disconnection - Provides voltage-controlled disconnection of batteries.

Boost Charging - Manual time controlled or automatic boost charging with adjustable time and voltage levels.

Battery Tests - Automatic or manual testing of batteries up to six times per year with a 10-test memory. Variables include test duration and end voltage. Battery discontinuance test to ensure battery connection.

Enhanced Battery Monitoring - Monthly logging of essential battery parameters including temperature, temperature hours, current, charging voltage and symmetry voltage, Data logged for 5 years.

Site Logs - System tools developed to assist site management. Daily peak load and statistic logs available.

Symmetry Measurement - Optional tool that measures batteries for early detection of thermal runaway.

Temperature Compensation Charging - Allows continuous adjustment of output voltage according to battery temperature. Features include adjustable compensation factor and separate thresholds for high temperature alarms.

Load Shedding (PLD) - Optional feature that allows voltage or time-controlled disconnection of non-essential load.

Alpine Power Systems is a value-added reseller of UNIPOWER products. Alpine can provide DC Power System services on all UNIPOWER products including engineering, installation, preventative maintenance, monitoring and recycling. Alpine has 25 locations and 200 technicians that are available to provide service nationwide. Call our inside sales group at 877-993-8855 for assistance.