SMA SMART LOAD 6000 Parts list manual

Accessories for stand-alone gird inverter
SMART LOAD 6000
Technical Description
SL6000-TEN081820 | 98-2001320 | Version 2.0 EN

SMA Solar Technology AG Table of Contents
Technical Description SL6000-TEN081820 3
Table of Contents
1 Notes on this Manual. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.1 Validity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.2 Target Group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.3 Storage of the Manual. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.4 Symbols Used. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.1 Appropriate Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.2 General Safety Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3 Unpacking. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.1 Packing List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.2 Checking for Transport Damage . . . . . . . . . . . . . . . . . . . . . . . 10
3.3 Identification of the Smart Load . . . . . . . . . . . . . . . . . . . . . . . . 10
4 Mounting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4.1 Dimensions and Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4.2 Selecting the Mounting Location . . . . . . . . . . . . . . . . . . . . . . . 11
4.2.1 Ambient Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4.2.2 Safety Clearances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4.2.3 Position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4.3 Mounting the Smart Load. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
5 Electrical Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
5.1 Overview of the Connection Area . . . . . . . . . . . . . . . . . . . . . . 15
5.2 Connecting the Stand-alone Grid System . . . . . . . . . . . . . . . . 17
5.3 Connecting the Resistor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
5.4 Communication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
5.4.1 RS232 and RS485. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
5.4.2 Operation Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Table of Contents SMA Solar Technology AG
4SL6000-TEN081820 Technical Description
5.5 Additional Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
5.5.1 Operational Interruption. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
5.5.2 External Specified Power Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
6 Switching the Grid Frequency. . . . . . . . . . . . . . . . . . . . . . 28
7 Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
8 Opening and Closing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
8.1 Opening the Smart Load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
8.2 Closing the Smart Load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
9 Maintenance and Cleaning. . . . . . . . . . . . . . . . . . . . . . . . 31
9.1 Cleaning the Cooling Fins . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
10 Parameter List. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
10.1 Adjustable Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
11 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
11.1 LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
12 Decommissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
12.1 Disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
12.2 Packaging. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
12.3 Storage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
12.4 Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
13 Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
14 Contact . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

SMA Solar Technology AG Notes on this Manual
Technical Description SL6000-TEN081820 5
1 Notes on this Manual
This manual describes the installation, commissioning and maintenance of the Smart Load.
1.1 Validity
This manual applies to firmware version FwVer 2.03 and higher.
You can access the firmware version of the Smart Load 6000 (SL 6000) using a communication
connection.
1.2 Target Group
This manual is intended for the installer and the user.
1.3 Storage of the Manual
Store all manuals in the direct vicinity of the system so that they are accessible at all times.

Notes on this Manual SMA Solar Technology AG
6SL6000-TEN081820 Technical Description
1.4 Symbols Used
The following types of safety instructions and general information appear in this document as
described below:
DANGER!
DANGER indicates a hazardous situation which, if not avoided, will result in death or
serious injury.
WARNING!
WARNING indicates a hazardous situation which, if not avoided, could result in death
or serious injury.
CAUTION!
CAUTION indicates a hazardous situation which, if not avoided, could result in minor or
moderate injury.
NOTICE!
NOTICE indicates a situation that can result in property damage if not avoided.
Information
Information provides tips that are valuable for the optimal installation and operation of
your product.

SMA Solar Technology AG Safety
Technical Description SL6000-TEN081820 7
2 Safety
2.1 Appropriate Usage
The Smart Load is an electronic load for stand-alone grid systems equipped with Sunny Island. It
identifies the grid frequency and determines whether an energy excess is present. The Smart Load
converts the excess energy into heat using an external resistor or heating cartridge. You can also
externally specify the nominal value of the power to be output.
Principle of a stand-alone grid system equipped with Smart Load
The Smart Load has a nominal power of 6 kW. The single or three-phase AC input voltage is 230 V
or 3 x 230 V. One load resistor with a power consumption of 6 kW or 3 load resistors with a power
consumption of 2 kW can be connected to the DC side of the Smart Load. The DC voltage is 230 V.
The Smart Load is suitable for Sunny Island stand-alone grid systems whose nominal voltage is
230 V or 3 x 230 V. The frequency can be 50 Hz or 60 Hz. Observe the limits specified by the
manufacturer.
The Smart Load is only suitable for original SMA accessories or accessories recommended by
SMA.
Appropriate usage also includes observing all the documentation.
AC-
Bus
SMARTLOA
D
Warning
Stop
Operation
SMARTLOA
D
Warning
Stop
Operation
Sunny
Island
Sunny
Boy
CHP plant
Windy
Boy
Smart Load
Load resistor

Safety SMA Solar Technology AG
8SL6000-TEN081820 Technical Description
2.2 General Safety Instructions
DANGER!
Danger to life due to high voltages in the Smart Load.
• All work on the Smart Load must be carried out by a qualified electrician.
CAUTION!
Danger of burn injuries due to hot housing parts.
• Do not touch the housing during operation.

SMA Solar Technology AG Unpacking
Technical Description SL6000-TEN081820 9
3 Unpacking
3.1 Packing List
Object Number Description
A 1 Smart Load
B 1 wall mounting bracket
C 1 technical Description
D 1 EC Declaration of Conformity
E1siliconetube
F 3 large bridging strips (for AC and resistor connections)
G 2 small bridging strips (for choke connection)
H 1 screw M6 x 12
A
E
B
H
FG
D
C

Unpacking SMA Solar Technology AG
10 SL6000-TEN081820 Technical Description
3.2 Checking for Transport Damage
Before installing, make sure that all parts are included in the delivery.
• Carefully check the packaging and the Smart Load for any signs of damage.
If something is missing or the Smart Load has been damaged during transport, contact your dealer
immediately.
3.3 Identification of the Smart Load
You can identify the Smart Load
by the type label. The type label
is on the right side of the housing.
Device type Serial number

SMA Solar Technology AG Mounting
Technical Description SL6000-TEN081820 11
4 Mounting
4.1 Dimensions and Weight
4.2 Selecting the Mounting Location
DANGER!
Danger to life due to fire or explosion.
Despite careful construction, a fire can occur with electrical devices.
Do not install the Smart Load
• on flammable construction materials,
• in areas where highly flammable materials are stored,
• in potentially explosive areas!
CAUTION!
Danger of burn injuries due to hot housing parts.
• Mount the Smart Load in such a way that it cannot be touched inadvertently during
operation.
14 kg
325 mm
435 mm
215 mm

Mounting SMA Solar Technology AG
12 SL6000-TEN081820 Technical Description
4.2.1 Ambient Conditions
• The mounting location must be accessible at all times.
• An ambient temperature between -25 °C and +50 °C ensures optimum operation.
• Do not expose the device to direct sunlight.
• The mounting location must be suitable for the weight and dimensions of the Smart Load.
• Mount the device on solid surfaces only.
4.2.2 Safety Clearances
When mounting the Smart Load, make sure to observe the following safety clearances to ensure
sufficient heat dissipation.
st
Direction Safety clearance
Sides 30 cm
Top 50 cm
Bottom 10 cm
Multiple Smart Loads installed in areas with high ambient temperatures
If necessary, increase the clearances between the individual Smart Loads and ensure that
there is sufficient ventilation. This ensures sufficient cooling.
30 cm
10 cm
SMARTLOAD
Warning
Stop
Operation
50 cm
30 cm

SMA Solar Technology AG Mounting
Technical Description SL6000-TEN081820 13
4.2.3 Position
• Install at eye level to allow operating modes to be read at all times.
• Vertical installation or tilted backwards by max. 45 °.
• Never install the device with a forward tilt.
• Do not install horizontally.
4.3 Mounting the Smart Load
1. Use the wall mounting bracket as a drilling template and mark the position of the drill holes.
2. Use fastening material suitable for the surface.
Tighten the wall mounting bracket.
3. Hang the Smart Load onto the wall mounting
bracket so that it can no longer be moved
sideways.
45°
SMARTLOAD
Warning
Stop
Operation

Mounting SMA Solar Technology AG
14 SL6000-TEN081820 Technical Description
4. Tighten the Smart Load using the provided
M6 screw on the underside of the housing.
The screw secures the Smart Load against
being raised.
5. Ensure that the Smart Load is securely in
place.
Screw

SMA Solar Technology AG Electrical Connection
Technical Description SL6000-TEN081820 15
5 Electrical Connection
5.1 Overview of the Connection Area
NOTICE!
Electrostatic discharges can damage the Smart Load.
• Ground yourself before touching a component inside the Smart Load.
Touching the inside of the Smart Load's housing.
Object Description
A PE connection terminal for AC connection
B AC connection terminals
C choke connection area
D choke connection area

Electrical Connection SMA Solar Technology AG
16 SL6000-TEN081820 Technical Description
E connection terminals for external specified power output
F connection terminal for operational interruptor
G Screw terminals for connection of the communication cable
H jumper slot for communication
Iinterfaceport
J floating input for operation display
K jumper slot for switching the grid frequency
L connection terminal for resistor
M connection terminal for resistor
N PE connection terminal for grounding the load resistor
1 cable opening for AC connection
2 cable gland for external specified power output
3 cable opening for operational interruptor
4 cable opening for communication
5 cable opening for operation display
6 cable opening for DC connection (resistor)
Object Description

SMA Solar Technology AG Electrical Connection
Technical Description SL6000-TEN081820 17
5.2 Connecting the Stand-alone Grid System
The Smart Load can be installed in single or three-phase, AC-coupled stand-alone grids whose
nominal voltage is 230 V or 3 x 230 V having a frequency of 50 Hz or 60 Hz.
Connection Procedure
1.
2. Unscrew the M25 metric-thread cable screw connection's lock nut (A), and slide it over AC
cable.
3. Thread the AC cable through the cable screw connection and connect PE to the "PE"
connection terminal.
4. Tighten the lock nut on the cable screw connection.
DANGER!
Danger to life caused by voltages in the AC stand-alone grid.
• Disconnect the stand-alone grid system.
• Ensure that no voltage is present in the system.
If... Then...
Three-phase
operation...
Connect L1, L2, L3 and N to the AC connection terminal according to the
label.
Single-phase
operation...
Bridge L1, L2 and L3 using the bridging strip
provided (use large bridging strip).
Connect L to the "L1" connection terminal.
Connect N to the "N" connection terminal.

Electrical Connection SMA Solar Technology AG
18 SL6000-TEN081820 Technical Description
DANGER!
Danger to life due to high voltages in the Smart Load.
• Only start the stand-alone grid system after all work has been completed.
A
AC connection terminal

SMA Solar Technology AG Electrical Connection
Technical Description SL6000-TEN081820 19
5.3 Connecting the Resistor
Cabling notes
The load resistor should be connected using a cable with the following properties:
•Shielded
• Cable length: maximum 20 m
• Cross section: at least 1.5 mm2
Load resistor
• The resistance value must be between 19 Ωand 26 Ω.
• The load resistor must be suitable for 230 V DC voltage.
• Only use resistors that are suitable for pulsed DC voltages.
Load resistors with a power consumption of 6 kW can be purchased from SMA.
If... Then...
Three-phase operation... • Connect 3 load resistors with a power consumption of 2
kW, see "Connection procedure for three load resistors"
(Page 20).
Single-phase operation... • Connect 1 load resistor with a power consumption of 6 kW,
see "Connection procedure for one load resistor" (Page
21).
or
• Connect 3 load resistors with a power consumption of 2
kW, see "Connection procedure for three load resistors"
(Page 20).
Exceeding the resistance value
If the resistance value of 26 Ωis exceeded, achieving the nominal power of the
Smart Load can no longer be ensured.
NOTICE!
An incorrect resistance value will irreparably damage the Smart Load.
• Ensure that the resistance value is never below 19 Ω.

Electrical Connection SMA Solar Technology AG
20 SL6000-TEN081820 Technical Description
Connection procedure for three load resistors
1. Unscrew the M25 metric-thread cable screw connection's lock nut (A) and slide it over the
load resistor cable.
2. Pull the load resistor cable through the cable screw connection.
3. Ground the shield using the EMC cable screw connection.
4. Ground the housing of the load resistor by connecting it to the "PE" connection terminal.
5. Connect the first load resistor to "X51"and "X61". Connect the second load resistor to "X52"
and "X62". Connect the third load resistor to "X53" and "X63".
6. Tighten the lock nut on the cable screw connection.
7. Ensure that the load resistors are connected properly.
NOTICE!
A short circuit will irreparably damage the Smart Load.
• Always connect three load resistors, with a power consumption of 2 kW each, for
a 3-phase AC connection.
DANGER!
Danger to life due to high voltages in the Smart Load.
• Only start the stand-alone grid system after all cables have been connected.
A