Keatec Energy DBL MX-U Series User manual

Models 1000U-48, 1500U-48, 2000U-48
DBL MX-U Series UPS
Manual
UNLESS SPECIFICALLY AGREED TO IN WRITING, SELLER
(A) MAKES NO WARRANTY AS TO THE ACCURACY, SUFFICIENCY OR SUITABILITY OF ANY TECHNICAL OR OTHER
INFORMATION PROVIDED IN ITS MANUALS OR OTHER DOCUMENTATION;
(B) ASSUMES NO RESPONSIBILITY OR LIABILITY FOR LOSSES, DAMAGES, COSTS OR EXPENSES, WHETHER SPECIAL,
DIRECT, INDIRECT, CONSEQUENTIAL OR INCIDENTAL, WHICH MIGHT ARISE OUT OF THE USE OF SUCH INFORMATION. THE
USE OF ANY SUCH INFORMATION WILL BE ENTIRELY AT THE USER’S RISK; AND
(C) REMINDS YOU THAT IF THIS MANUAL IS IN ANY LANGUAGE OTHER THAN ENGLISH, ALTHOUGH STEPS HAVE BEEN TAKEN TO
MAINTAIN THE ACCURACY OF THE TRANSLATION, THE ACCURACY CANNOT BE GUARANTEED. APPROVED CONTENT IS
CONTAINED WITH THE ENGLISH LANGUAGE.
(D) INFORMS YOU THE INFORMATION IN THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE.
(E) RESERVES ALL RIGHTS.
DBL MX-U Series UPS Outdoors 1000-2000W 120V Manual English 20180312 - This manual is for qualified personnel only

CONTENTS
Section 1
1.0 Important Safety Instructions……………………………………….…..…………………….…..….X
Section 2
2.1
2.2
Characteristics…………….......………………………….……………………...……..….…..…....1,2
Standard Features………………………………………………………….………….......................2
Section 3
3.1 Unpacking The UPS………………………………………………………………………………......2
Section 4
UPS Functions and Descriptions
4.1 UPS Front Panel View ……………………………………………………………………..…..….....3
4.2
4.3
4.4
4.5
Control Panel Functions…………………..……………………………….……..…...................…..4
Control Panel Symbols and Icons.……………………………………….…….....………...............5
Secondary Timer Display……………………………………………………………………………...6
Communication Ports…………………………………………….…………………….….................7
Section 5
UPS Working Principle & Block Diagrams
5.1
5.2
UPS Systems Block Diagram…………………………………….………………..…..…...........….8
Operating Modes…………………………………………………………………………..................9
5.3 UPS Audible Alarms …………………………………………………………….….………..............9
Section 6
Bypass Switch
6.1
6.2
HSU-1500 Bypass Switch……………………………………………………………….……….…10
HSU-1500 Operation………………………………………………….….……..………..………...11
6.3 Generator Bypass HSU Dual………………………………………………………….…….....…..12
6.4 Generator Bypass Operation……………………………………………………..….…..….…..…13
Section 7
Batteries Connections
7.1 This section left intentionally Blank ...……………………..…….….........…..…..….…..............14
7.2
7.3
This section left intentionally Blank……………………........………………………….………....15
48 VDC Battery Cables …..……..…………………………………..………….……............……16
DBL MX-U Series UPS Outdoors 1000-2000W 120V Manual English 20180312 - This manual is for qualified personnel only

7.4 Battery Configuration (48VDC) 1000U-48, 1500U-48 & 2000U-48………… ………….……...17
7.5 This Section Intentionally Left Blank..…….......……………………………………………….…...18
7.6
7.7
7.8
This Section Intentionally Left Blank……………………………………………………….…..…..18
This Section Intentionally Left Blank.……………………………………………………….……..19
Section 8
UPS Installation
8.1 UPS Complete UPS System Connection Diagram…………………..…………………….....21,22
Section 9
UPS System Operation
9.1 UPS Start-UP With AC Applied………………………………………….…………..………....…. 23
Section 10
UPS Alarm Latched Condition
9.2 Using the Control Panel To View Parameters…..……………………………..…………………..24
9.3 AC Input Voltage…………………………..…………………….……………………………........…24
9.4 Input Frequency………………………………….…………………………………….………….......24
9.5
9.6
UPS Output Voltage………………………………..………………………..……………..……..….24
UPS Output Frequency……………………… ………………………..…………….….…...........25
UPS Output Load Percentage……………………… ………………………..…………….….….25
9.7
UPS Output Current…………………………………………….……………………........................25
Battery Temperature Probe.....................................................................................................20
9.8
9.9 Battery String Voltage..............................................................................................................25
9.1.1 UPS Internal Surface Temperatue.............................................................................................25
9.1.2 Cold Starting The UPS Using The Batteries..............................................................................26
10.1 UPS Latched Alarm...................................................................................................................27
10.2 Procedure To Release The Latched Condition.........................................................................27
10.3 UPS Default Parameters...........................................................................................................28
10.4 Audible Alarm............................................................................................................................28
10.5 Self Test....................................................................................................................................28
10.6 Bypass VAC Window................................................................................................................29
10.7 Output Frequency Window........................................................................................................29
10.8 Inverter Output Voltage.............................................................................................................29
10.9 UPS Operation Mode................................................................................................................30
10.1.1 UPS ECO Mode ......................................................................................................................30
10.1.2 UPS Frequency Mode 50Hz....................................................................................................30
10.1.3 UPS Frequency Mode 60Hz....................................................................................................30
10.1.4 UPS Output Fine Tuning VAC Values......................................................................................30
DBL MX-U Series UPS Outdoors 1000-2000W 120V Manual English 20180312 - This manual is for qualified personnel only

Section 14
UPS Problem Solving
14.1 Trouble Shooting………………………………………………………………..…….......…37,38,39,40
Section15
Specifications and UPS Data
Specifications…………………………………………………………………….……………..........41,42
Section 16
Maintenance ……………………………………………….…………………………….......52,53,54,55
Section 11
Secondary Programmable TimerDisplay
11.1 Timer Programming………………………………………………………………………................33
11.2
11.3
LED Functions…………………………………………………………….……..….……................33
Display Screens Screen #1……………………………………………………..........…...............33
Programming Screen #2 Set Timer.........................................................................................34
Programming Sreen #4 Battery VDC......................................................................................34
Key Functions..........................................................................................................................34
Key Function Flashing Cursor.................................................................................................34
10.1.5 Changing The UPS Parameters..............................................................................................31
10.1.6 Turn OFF The UPS in AC Mode.............................................................................................32
10.1.7 Turn Off The UPS in DC Mode...............................................................................................32
10.1.8 Self Test Setting......................................................................................................................32
10.1.9 UPS ECO Mode Setting..........................................................................................................32
11.4
11.5
11.6
11.7
Section 12
UPS Relay Output Card
12.1 Pin assignment.........................................................................................................................35
12.2 EPO Emergency Power Off .....................................................................................................35
Section 13
13.1 UPS Power Operational Sequences..........................................................................................36
DBL MX-U Series UPS Outdoors 1000-2000W 120V Manual English 20180312 - This manual is for qualified personnel only

SECTION -1
IMPORTANT SAFETY INSTRUCTIONS!
This guide contains important instructions for yourDBL MX-UUPSthatmustbefollowedduringtheinstallation
andmaintenanceof theUPSandbatteries.
CAUTION!!
Wheneverthe UPSis operating,theremaybedangerous voltagepresent attheunit’s outletsorconnections.
This is because theUPSsystems batteries provide power even if the unitis notconnected toan AC source.
Donotattempttorepair the UPS, contact yourlocaldistributor orsupplier beforeproceeding anyfurther.
If anyform of liquid or foreign objects are dropped on theUPS or entertheUPS, damaged may occur. This will
voidthe warranty.
DonotinstalltheUPS where it is exposedto environments wheresparks, smokeor flammablefluids/gas are
present.
This UPSis equipped withanEMIfilter device. Toprevent anypotential leakage current or safetyhazard, it is
veryimportantthatcorrectgroundingproceduresbefollowed.
Youmustfollowlocalor agencycodes.
TheUPSis designtobe installed in a properlyventedenclosure.
Topreventoverheatingorover-temperature,always keepthecooling fansfree from anyobjects thatmayblock
theUPSair intakes, failure todo this willcause the UPS to over-heat and shutdown.
WHENINSTALLINGTHEUPS,ENSURETHAT ALLTHECONNECTIONS AND GROUNDING
PROCEDURESAREFOLLOWED.
A DISCONNECT DEVICE SHALL BE PROVIDED FOR THE AC/DC INPUT OF A PERMANENTLY
CONNECTED UPS AND/OR A REMOTE SUPPLY/CABINET ASSEMBLY.
THE MINIMUM CONDUCTOR SIZES OF INPUT AND OUTPUT WIRES TO UPS ARE RECOMMENDED TO
SATISIED AS BELOW:
AC input and output
Model
Disconnect Device Rating
Maximum Current
Conductor Section
DBLMX2000U-48
240VAC / 25A
19.45A
AWG #12
DBLMX1500U-48
240VAC / 20A
16.49A
AWG #12
DBLMX1000U-48
240VAC / 16A
12.07A
AWG #14
DC input
Model
Disconnect Device Rating
Maximum Current
Conductor Section
DBLMX2000U-48
60VDC / 50A
45A
AWG #12 x 2 or AWG #6
DBLMX1500U-48
60VDC / 40A
33.33A
AWG #12 x 2 or AWG #8
DBLMX1000U-48
60VDC / 32A
25A
AWG #14 x 2 or AWG #12
X
DBL MX-U Series UPS Outdoors 1000-2000W 120V Manual English 20180312 - This manual is for qualified personnel only

SECTION-2
Product Introduction
General Characteristics
True on-line technology continuously supplies your critical device with stable, regulated, transient-free, pure-sine-
wave AC power. A High-efficiency PWM sine-wave topology yields excellent overall performance.
The high crest factor of the inverter handles all high in-rush current loads without the need to upgrade the power
rating.
To protect the unit from overloading, the UPS will automatically switch to bypass mode in 30 seconds if loading is
at 105% of rated capacity. It will automatically switch back to inverter mode once the overload condition is cleared.
Should the output become short-circuited the UPS puts the system in stand-by mode, provides visible and audible
alarms, and cuts the output supply automatically until the short circuit situation is resolved manually.
Our High Frequency Transformer-less technology and enclosure enables the UPS to be integrated into even the
most difficult environments with space constraints.
This UPS is equipped with fully digital control logic for greater functionality and enhanced power protection. Digital
signal processing (DSP) also provides the UPS with powerful communication capability, which simplifies remote
control and monitoring.
1
DBL MX-U Series UPS Outdoors 1000-2000W 120V Manual English 20180312 - This manual is for qualified personnel only
Industry Leading A/C input voltage range of 55-150 V allows under-voltage or over-voltage correction without
unnecessary battery drain and helps extend battery life.
A Cold DC-start function ensures the start-up of the UPS even during power outages.
Our Active Power Factor Correction control function constantly maintains the UPS input power factor at > 0.98 for
superb energy efficiency.
A Selectable Bypass input voltage tolerance (sensitivity low/high) prevents under- or over-voltage being supplied to
the loads in Bypass mode. The selectable voltage ranges are (i) Bypass Sensitivity Low: many selectable output
voltages ±15% and (ii) Bypass Sensitivity High: many selectable output voltages ±10%. For example, if the output
voltage setting is 120 V the Bypass Sensitivity Low range is 120 V ±15%, i.e., 102-138 VAC.
The UPS provides numerous configurable output voltages to match a wide range of system voltages.
The UPS is designed to comply with various stringent international standards for electromagnetic interference
compatibility (EMC) as well as FCC classification.

SECTION 3
3.1 Unpacking the DBL MX-U
The DBL MX-U is packed using 100lb rated cardboard with Styrofoam packing. This will prevent UPS or component
damage if the MX is shipped individually.
When you receive the DBL MX, always note the condition of the packaging, If the DBL MX is visually damaged,
please contact your shipper and your distributor immediately.
The packaging is recyclable, save it, reuse it, or dispose of it properly.
Remove the DBL MX-U from its’ packing.
Check the contents for the following.
•DBL MX UPS (1)
•Rack-mount ears (2)
•AC harness assembly (1)
•DC battery preconfigured interconnect cable assembly (3)
•User Manual (1)
•Software disc and USB cable (1 ea)
•EPO connector (1)
2
DBL MX-U Series UPS Outdoors 1000-2000W 120V Manual English 20180312 - This manual is for qualified personnel only
Input
Output
Ground
AC harness assembly

Section 4
4.1 Front Panel Views
3
DBL MX-U Series UPS Outdoors 1000-2000W 120V Manual English 20180312 - This manual is for qualified personnel only
DBLMX1000U-48 DBLMX1500U-48 DBLMX2000U-48

Item
Sign
Description
LCD Display
Green LED steadily lights up to indicate that the Utility input
voltage is within the window.
(In standby mode: 90Vac~150Vac)
(In Line mode: 55Vac~150Vac)
Green LED lights up to indicate there is an output available
at the Programmable Outlet 1 & Programmable Outlet 2.
Amber LED lights up to indicate the Bypass Input is normal.
UPS Fault LED
UPS On/Alarm Silence
UPS OFF Switch
Special functions log in/out
Go to next page
Go to previous page or change the setting of the UPS.
To re-confirm the change of UPS Settings
4.2 UPS DISPLAY AND CONTROL PANELS
DBL MX-U Series UPS Outdoors 1000-2000W 120V Manual English 20180312 - This manual is for qualified personnel only
4

4.2 LCD DISPLAY DESCRIPTION
Item
Sign
Description
1
Bypass Input Abnormal, UPS fails to transfer to bypass,
Bypass Abnormal at ECO mode
2
Utility Input Abnormal
3
Site Wiring Fault
4
Buzzer Silent
5
UPS Overloading
6
UPS Working in specified mode*
7
UPS Fault or Abnormal Warning
8
UPS Flow Chart
9
3-Digit Measurement Display
10
Indicates the item to be measured
11
Battery Abnormal
12
Battery Low
13
Testing
5
DBL MX-U Series UPS Outdoors 1000-2000W 120V Manual English 20180312 - This manual is for qualified personnel only

4.3 TIMER DISPLAY DESCRIPTION.
1) Two Line 25 Character Display
2) 3 Button Programming, set, scroll, next.
3) Charge Status LED
4) Timer Function LED
5) Timer, Counter, Hours
6) TempProbe Connector
5
4
1
3
2
6
6
DBL MX-U Series UPS Outdoors 1000-2000W 120V Manual English 20180312 - This manual is for qualified personnel only

4.4 Communication Port Explanation
The MX-U Series UPS are equipped with a true RS-232 & USB communication port as standard to provide
communication with bundled UPS monitoring software for remote monitoring of the UPS status using a PC.
In addition, there are six optional interface cards available to meet various communication needs: USB, EPO/ROO,
DCE (dry contact relay card), R2E, USE, and an SNMP/Web card. (Please see Chapter 8.)
The software bundled with the UPS is compatible with many operating systems, including Windows 98 / Me / NT /
2000 / 2003 / XP / Vista / 2008 / 7 / 8 , Novell, NetWare, Unix, Linux 2.6.x, Mac OS X v10.5 Leopard, Mac OS X
v10.6 Snow Leopard please contact your local dealer for suitable software.
All communication ports including optional cards can be active and used simultaneously to monitor the UPS status.
However, only one communication interface at a time (the one with the highest priority) can control the UPS. The
priorities of these communication interfaces are as follows (highest priority first).
This is the layout, located on the
right side the LCD control
panel.
7
DBL MX-U Series UPS Outdoors 1000-2000W 120V Manual English 20180312 - This manual is for qualified personnel only

Figure 4.1
Figure 4.1 illustrates the True On-Line Double Conversion architecture of the UPS system.
The major modules consist of:
1) An AC-to-DC power converter (rectifier) with PFC control circuit
2) A DC-to-AC high frequency inverter
3) An intelligent battery charger
4) A bank of stationary, maintenance-free batteries
5) A DC-to-DC push/pull converter control circuit
6) A static bypass loop
7) Input and output EMI filters
Section 5
5.1 UPS System Block Diagram
8
DBL MX-U Series UPS Outdoors 1000-2000W 120V Manual English 20180312 - This manual is for qualified personnel only

The table below provides a summary of the UPS operating modes under various utility AC power source
and battery conditions.
Utility Condition UPS Operating Mode LEDs
Normal
Working power starts after approximately 2 seconds,
LEDs on the panel will blink and fans will start. Press
the ON button for 1-5 seconds. The UPS starts up
normally.
、 、 and
LEDs remain lit
Abnormal (under or over
voltage or absent)
Rectifier and charger stop operating. Battery discharges
via DC-DC boost circuit and supplies Inverter. Loads
continue to receive supply from Inverter. Alarm buzzer
beeps. UPS now in battery mode.
LED off, LED illuminated
Utility abnormal or absent, or
battery voltage low
Rectifier and charger stop operating. Battery discharges
via DC-DC boost circuit and supplies Inverter. Alarm
buzzer beeps quickly, indicating battery power low and
Inverter may stop supplying soon.
LED off, and LEDs
illuminated
5.3 Audible Alarm Codes
The following table contains common UPS statuses with their Audible Alarm codes.
UPS Status Audible Alarm Code
UPS faulty, Inverter shut down. All functions
inhibited. Long Continuous Beep
Control keypad error Long Continuous Beep
UPS faulty, loads continue to be supplied via
Inverter or Bypass. Single beep every two seconds
In battery mode Single beep once per second
Battery low Quick and short successive beeps
Confirm RS-232 port receiving two quick and short beeps
Service mode okay one quick and short beep
9
5.2 Modes Of Operation.
DBL MX-U Series UPS Outdoors 1000-2000W 120V Manual English 20180312 - This manual is for qualified personnel only

6.1 Hot Swap Byass Switch
The Bypass has a provision for two AC connections. One is from the UPS system, the second is a
utility source.
a. The Anderson 6 pole is a latching type, each PP30 connector is rated at 30 amps. This will
accept the input/output connection AC harness from the UPS system. It is not keyed but the AC
harness is reversible.
b. The Second Connection is the utility/ installation connector. It is a Molex locking connector
that is used to provide the AC utility to the Bypass as well as provide the UPS power to the load.
The Bypass Switch is also available in a Rack-Mount configuration. All of the Connections are identical.
The Bypass uses 5 conductors. Please make note, each conductor has a specific function. If the
conductors are not connected correctly, damage to the UPS and Bypass may occur.
Black: This is the Utility Input Source
White: These (1 or 2) are Neutrals for the Utility Input and UPS output, they are always common.
Red: This is the UPS Output Line (LOAD).
Green: This is the UPS and Bypass Grounding conductor.
Bypass
AUTO
Line Available
Bypass
UPS On Line
UPS Available
GREEN LED Indicates AC is present
RED LED indicates BYPASS is active.
Amber LED indicates UPS is connected
Green LED indicates UPS is providing
power to the equipment.
Input Output Connector
Main Circuit Breaker
One Touch Control
Button/Bypass/Auto
Input/Output Molex
connector.
Mounting Tab
10
Section 6
DBL MX-U Series UPS Outdoors 1000-2000W 120V Manual English 20180312 - This manual is for qualified personnel only

6.2 Bypass Switch Operation
1-
2-
3-
4-
5-
6-
7-
8-
The Bypass is equipped with 4 LEDs that will indicate the operation/status of the switch.
The rocker switch should initially placed in the BYPASS position.
When AC is applied to the switch, GREEN LED- LINE AVAILABLE will be ON.
The RED LED–BYPASS will be on.
In this position the AC Utility will pass through the BYPASS directly to the equipment
If the UPS is OFF or not connected, the AC will go directly to the equipment.
If the UPS system is ON, the AC power will still provide AC to the equipment
In the BYPASS position, if there is a power failure, the Equipment will not be backed up or protected.
6.3 AUTO Position ( UPS Operating)
1- The Bypass is equipped with 4 LEDs that will indicate the Status of the switch.
2- The rocker switch should be placed in the AUTO position.
3- The GREEN UPS ON LINE LED will be ON.
4- In this position, the AC Utility travels to the UPS, (UPS TURNED ON) then from the UPS through
the BYPASS, directly to the equipment.
5- IF THE UPS CONNECTIONS ARE REMOVED AT ANY TIME WITH THE UPS OPERATING, THE BYPASS
WILL TRANSFER UTILITY POWER DIRECTLY TO THE EQUIPMENT. The Bypass will automatically
transfer into a BYPASS position and the RED LED will be ON
AC IN
Load
Load
11
DBL MX-U Series UPS Outdoors 1000-2000W 120V Manual English 20180312 - This manual is for qualified personnel only

6.4 Hot Swap Bypass Switch With Generator Option.
Auto
Bypass
ANDERSON POWER POLE
TO BYPASS
Mounting Holes
LED Indicators
BYPASS Control
Button
Auto
Bypass
GEN AND UPS CB
A/C CONNECTOR
UPS to BYPASS
Line Available
Bypass
UPS On Line
UPS Available
Line Available
Bypass
UPS On Line
UPS Available
MOLEX
BLACK: AC INPUT
WHITE: AC INPUT NEUTRAL
RED: UPS OUTPUT TO LOAD
G
WHITE: AC OUTPUT NEUTRAL
BROWN /ORANGE: GENERATOR
WHITE: GENERATOR NEUTRAL
12
DBL MX-U Series UPS Outdoors 1000-2000W 120V Manual English 20180312 - This manual is for qualified personnel only

6.5 GENERATOR BYPASS OPERATION
The Dual Failsafe Bypass is designed to provide the ability to connect an alternate power source (generator)
with separate controlled switching. This allows the alternate power source (generator) to be selected manually
or, when AUTO is used, automatically when the alternate source is connected. This Hot Swap Bypass is in fact
a DUAL-SWITCH.
As in the Standard Hot Swap Bypass, LED indicators provide status of the UPS /Line/Generator
operation.
The UPS Section operates as a standard Failsafe Bypass. The UPS switch when selected to the Auto
position, allows the UPS to operate in the circuit at all times. If the Bypass is selected, then the UPS will no
longer be in the circuit and utility power will go directly to the load.
Generator Section. The generator section controls the source of alternate power being directed to the UPS.
In the Auto Position, the alternate source of power is automatically selected.
If there is Utility power present and generator power is applied, the Utility power will always be used,
the switch will not transfer to generator.
During a power failure, the UPS will operate on Battery, if a generator is connected, the switch will
recognize the generator power and use this source to power the UPS.
If the selection button is placed in the BYPASS position, the generator will not be selected. The UPS
will continue to operate on battery power.
IN NORMAL OPERATION, THE SELECTION BUTTONS ARE ALWAYS IN THE AUTO POSITION.
THE FAILSAFE BYPASS WITH GENERATOR WILL ALWAYS SELECT THE LINE (utility) WHEN IT IS
PRESENT, THIS IS CALLED (LATCHING TO LINE).
THIS FEATURE CANNOT BE CHANGED !!!.
GEN
UTILITY
UPS
Load
13
DBL MX-U Series UPS Outdoors 1000-2000W 120V Manual English 20180312 - This manual is for qualified personnel only

SECTION 7
7.1 This Section Intentionally Left Blank
14
DBL MX-U Series UPS Outdoors 1000-2000W 120V Manual English 20180312 - This manual is for qualified personnel only

7.2 This Section Intentionally Left Blank.
15
DBL MX-U Series UPS Outdoors 1000-2000W 120V Manual English 20180312 - This manual is for qualified personnel only