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SLI 15 Inverter


SLI 15 Inverter

Features


  • New, compact design: 1U height x 19” width x 14.94” depth; 19” rack-mountable
  • High efficiency: up to 93%
  • True sine wave output
  • Parallelable output with current share and synchronization of multiple inverters working in parallel
  • Front panel LCD display to monitor and set the main parameters
  • RS-485 serial link
  • Constant input current sink from battery for extended life
  • Optional hot-swappable configuration
  • Optional internal Static Transfer Switch
  • In the -STS version, ON line (primary source to the load) or OFF line mode (UPS like)
  • Configurable for being used as Three Phase source, 3 units

Applications


  • Telecom
  • IT
  • Industrial

Description


The SLI 15 Inverter Series provides an ideal solution for telecom, IT, and industrial applications. Due to innovative technology solutions like the patent-pending “Compact Coil”, the SLI 15 inverters pack 1500 watts of power into a light (5.6 kg) and compact package that is mountable in 19” racks and is only one rack unit high. The SLI 15 Inverter Series offers four models for different input (24 and 48VDC) and output (115 and 230VAC) voltage combinations. An integrated controller, along with an optional internal Static Transfer Switch (STS) enable flexible and scalable systems which are truly “plug and play”, and require no external subsystems. The inverters can be stacked up to the power level needed by each application and also have the capability to be configured for generating a 3-phase voltage source.

Electrical performance of the SLI 15 is exemplary of a top-of-the-market product with efficiency that peaks at 93% and a patent-pending control algorithm that compensates current harmonics on the DC side without using bulky and expensive filters. The SLI 15 includes a powerful on-board Digital Signal Processor (DSP) that allows easy programming of main parameters through use of its front-panel keypad and LCD display. In addition, the SLI 15 can be interfaced with an RS-485 serial communications link.

SLI Inverter Model Selection and Ordering Information


Model 1 Input Voltage
(VDC)
Output Voltage
Nominal
(VAC)
Overall Output
Voltage Range
(VAC)
Frequency
Range
(Hz)
SLI-24-115 24 115 100 to 120 47 to 63
SLI-24-230 24 230 200 to 240 47 to 63
SLI-48-115 48 115 100 to 120 47 to 63
SLI-48-230 48 230 200 to 240 47 to 63

1 The following suffixes should be added to the model number to order options. For an internal Static Transfer Switch, please add the suffix “-STS”. For AC terminal blocks, please add the suffix “-SC”. For Hot Plug version, please add the suffix “-HP”. For Neutral tied to Ground, please add the suffix “-GN”.

ELECTRICAL SPECIFICATIONS


Input Specifications

Parameter Conditions/Description Min. Nom. Max. Units
DC Input Voltage
Range
  20
40
24
48
36
72
VDC
Input Current 24 VDC Models @ 18 VDC:
48 VDC Models @ 36 VDC:
    100
48
Amps
Inrush current       <10 Amps

Output Specifications

Parameter Conditions/Description Min. Nom. Max. Units
Output Power       1500 Watts
Output AC Voltage
Range
Standard is Vac floating from Ground; -GN
version is available with Neutral connected to
Ground (Grid Input shall be supplied by means
of an isolation transformer)
110
200
115
230
120
240
VAC
Frequency 50Hz/230Vac, 60Hz/115Vac 50   50 Hz
Efficiency       93 %
Load Power Factor lagging or leading 0.33   1  
Crest Factor Ipk/Irms     4  
Regulation in single
mode
Load: over full operating range. R-Load
Line: over full operating range. R-Load
-3
-0.1
  +1
+0.1
%
Regulation in parallel
mode
Load: over full operating range. R-Load 230
115
-6
-8.5
  0
0
%
Total Harmonic
Distortion
On Resistive Load.     <2 %

Fault Protection

Parameter Conditions/Description Min. Nom. Max. Units
Input Overcurrent
Protection
24 VDC Models; Internal Fuse.
48 VDC Models; Internal Fuse.
140
70
    Amps
Input Overvoltage
Protection
24 VDC Models:
48 VDC Models:
37,5
74
    VDC
Input Undervoltage
Protection
24 VDC Models:
48 VDC Models:
18
36
    VDC
Output Overload 115 VAC Models:
230 VAC Models:
1610
1840
    W
Surge 115 VAC Models for 200 ms:
230 VAC Models for 200 ms:
1750
2300
    VA
Overvoltage Protection All outputs are set at 115%, ±2 % of nominal.
Undervoltage
Protection
All outputs are set at 85%, ±2 % of nominal.
Overcurrent Protection 115 VAC Models: 1 A to 14 A selectable.
230 VAC Models: 1 A to 8 A selectable.
Safety Overcurrent
Protection
By safety circuit breaker:
115 VAC Models: 15 A.
230 VAC Models: 10 A.
Short-Circuit
Protection
Peak Current type protection:
115 VAC Models: 60 A.
230 VAC Models: 30 A.
Overtemperature
Protection
Visual and acoustic indication 5 °C before shutdown at Tamb > 65 °C and at Tint > 100 °C.
Protection Restore
Modes
The restore mode of each protection can be individually selected to "latch" or "auto-restart".

Environmental Specifications


Parameter Conditions/Description Min. Nom. Max. Units
Operating Temp
at Full Load
Power Derating: 75W/°C: +55 °C to +65 °C. -25   55 °C
Altitude Operating.
Non-Operating.
    13K
40K
ASL ft
ASL ft
Storage Temp   -40   85 °C
Humidity 90% relative humidity @ 40 ºC, non-condensing.        
Output Voltage
Temperature
Coefficient
0.02% per °C within rated load.        

Interface Signals/Controls

Parameter Conditions/Description Min. Nom. Max. Units
LCD Panel 2-line LCD panel with keypad for menu navigation.
LED Indicators 4 LED indicators:
Front panel GREEN LED indicates inverter is ON.
Front panel RED LED indicates a generic fault categorized as:
a. Overtemperature (OT),
b. Fan fail,
c. Input OV, UV, OC, or Output OV, UV, or OC.
General Alarm Signal Activated by an open photo-relay if in fault mode, available at rear signal connector
Serial link RS485 port, 500Vdc isolated, available at rear signal connector

Regulatory & Safety


Parameter Conditions/Description Min. Nom. Max. Units
cCSAus Approved.
Kema Approved.
CB Report Approval Approved.
CE Mark for LVD Approved.
RoHS Compliant.
Isolation Primary-to-Secondary: 3000 Vrms.
Primary-to-Ground: 1000 Vrms.
Secondary-to-Ground: 1500 Vrms.
Signal-to-Ground: 0 Vrms.

Mechanical Specifications


Parameter Conditions/Description Min. Nom. Max. Units
Dimensions Depth (inches)     14.94 in
Depth (mm)     379.5 mm
Width (inches)     19.00 in
Width (mm)     482.6 mm
Height (inches)     1.71 in
Height (mm)     43.5 mm
Weight Pounds     12.34 lb
Kilograms     5.6 kg
Connections DC input: back left, one 6mm diameter hole at each input bar; hot plug version has PCB bars with
pre charging system; subrack for -HP version hosts one inverter, separate purchasing part; plastic
DC input cover is available, separate purchasing part
AC output: back right, IEC320 plug is the standard; screw terminal blocks are with the option –SC;
-STS version has IEC320 socket marked “Grid Input”
Signal: back centre, female Sub-D 15 poles connector, Molex 89263-6062 or equivalent; general
failure alarm, serial port, synchronism for paralleling or three phase, remote on/off.
For paralleling inverters, up to 6, ask for paralleling kit, one per inverter, separate purchasing part
Important: -STS and -GN options are compatible just supplying Grind Input by means of an
isolation transformer, same indication if Neutral is tied to Ground at customer site.
Parameter Conditions/Description Min. Nom. Max. Units
Calculated MTBF At 40 °C excluding fan
-STS version, at 40°C excluding fan
250,000
200,000
     

Mechanical Outline Drawing:


NUCLEAR AND MEDICAL APPLICATIONS - Power-One products are not designed, intended for use in, or authorized for use as critical components in life support systems, equipment used in hazardous environments, or nuclear control systems without the express written consent of the respective divisional president of Power-One, Inc.

TECHNICAL REVISIONS - The appearance of products, including safety agency certifications pictured on labels, may change depending on the date manufactured. Specifications are subject to change without notice.