Danfoss CLX Series
Quick Guide
CLX GM
MAKING MODERN LIVING POSSIBLE
SOLAR INVERTERS
Contents
1. Important Instructions
2
About this Quick Guide 2
Symbols 2
Safety Instructions 2
2. Product Overview
4
Product Description 4
System Requirements 4
Intended Use 4
3. Technical Description
6
Technical Description 6
Display 7
4. Installation
8
Installation 8
Mounting 8
Signalling of Grid Management 9
5. Configuration
10
Configuration 10
Configuring the Network 10
Configuration of CLX GM and Inverters with a DHCP Server (Router) – Dynamic
IP 10
Configuration of CLX GM and Inverters without a DHCP Server (Router) – Static
IP 10
Configuring Grid Management (Active and Reactive Power) 11
Configuring Reactive Power Control – Percent of Q (TLX Pro+ only) 13
Configuring Reactive Power Control – Power Factor (TLX Pro+ only) 14
Configuring Fallback Values 15
6. Technical Data
17
Contents
L00410637-01_02 1
1. Important Instructions
1.1. About this Quick Guide
This manual contains detailed product information and instructions for using the Danfoss CLX
GM equipment.
This document relates to the current version at the time of printing. Danfoss reserves the right
to make changes due to the introduction of new functions and improvements. The names of
products and companies mentioned in this document may be registered trademarks of their respective owners.
This Quick Guide contains information about:
• Safety
• Product overview, system requirements
• Technical descriptions
• Installation, grid management, and inverter connection
• Getting started
• Technical data
1.2.
Symbols
This manual contains important information accompanied by the following symbols:
The
Attention symbol draws attention to a risk of damage to components or
danger to persons if the information provided is not observed. This type of information must be observed at all times.
Note:
The Note symbol marks supplementary information for improving operating processes as
well as user tips.
1.3.
Safety Instructions
The reader must be familiar with the rules and regulations for electrical equipment and connection to the mains power network. Pay particular attention to general safety regulations for
working with electrical systems.
Observe the safety instructions below to prevent injury to persons and damage to connected
equipment.
Contact with electrically conductive parts after disconnection from the mains supply can be dangerous. Do not connect the equipment to the mains supply before installation.
1. Important Instructions
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Equipment must be installed only in protected/dry environments.
Do not use metallic/pointed/sharp instruments to access the enclosure.
Prevent cables and terminals from being exposed.
The power plug must be accessible at all times.
Qualified personnel only must perform service.
Equipment must only be operated at the rated supply voltages (12–24 VDC, correct polarity). A suitable power supply unit is included in the scope of delivery.
Note:
Observe the manufacturer's instructions regarding the handling of power supply units (especially switching units).
Observe the manufacturer's instructions regarding the handling of inverters.
1. Important Instructions
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2. Product Overview
2.1. Product Description
Grid management of PV plants with TLX Pro or TLX Pro+ inverters is handled by the CLX GM
and the master functionality of the TLX Pro and TLX Pro+ inverters.
The CLX GM is connected directly to the output of a radio ripple control receiver. The receiver
has 4 digital outputs K1-K4, which are used by the grid operators for signalling either power
reduction or reactive power setpoint commands.
The CLX GM reads the current relay state and via its Ethernet connection to the inverter network it broadcasts a message to the master inverter. Therefore all configuration of how to react
upon a certain relay state is performed directly in the master inverter itself. The CLX GM is connected to the receiver and the inverter network and requires no additional configuration.
Illustration 2.1: Grid Management for Solar Power Plant
Legend
1 Radio ripple control receiver
2 CLX GM
3 Master inverter
4 Follower inverters
The equipment is supplied with the following items:
1 CLX GM
2 Mounting bracket with screws
3 Accessories (power supply, network cable standard RJ-45 TP10/100 cat 5e)
4 Packaging
5 Instructions
Table 2.1: Product Overview
2.2. System Requirements
2.2.1. Intended Use
The CLX GM is intended solely for use with TLX Pro and TLX Pro+ inverters.
Drilling holes in the equipment or mechanical modifications will damage the equipment and invalidate the warranty.
2. Product Overview
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2.2.2. System Requirements
The CLX GM has a built-in web interface, for display of simple status information and configuration.
The following web browsers are recommended:
Internet Explorer
®
Version 6 or later
Firefox
®
Version 2 or later
Note:
The grid management behaviour is configured directly via the web interface of the TLX Pro
or TLX Pro+ master inverter. For configuration, a PC and a crossed network cable are therefore needed and must be available at commissioning.
2. Product Overview
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3. Technical Description
3.1. Technical Description
1 2 3 4
5 6
150AA012.10
Illustration 3.1: CLX GM Connectors (Bottom)
Legend
1 Power supply with circular connector (12–30 VDC, 1 W)
2 Ethernet port for LAN
3 Not used
4 Input terminals, 12 lines:
2 x voltage (+)
6 x relay input (S01, S02, S03, S04, S05*), S06*))
4 x analog input 20 mA (A1+, A1-, A2+, A2-)
*)
5 & 6 Not used
*) Not used.
7
150AA013.10
Illustration 3.2: CLX GM Connectors (Top)
Legend
7 Micro SD slot: not used
3. Technical Description
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3.2. Display
1 2 3
4
150AA014.10
ESC
Illustration 3.3: Front View
Legend
1 Cancel/Back
2 Down
3 Up
4 Confirm
3. Technical Description
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4. Installation
4.1. Installation
The CLX GM is connected to the master inverter of the inverter network via LAN interface, consisting of an Ethernet network between the inverters and the CLX GM. Use a standard patch
cable (network cable cat5e or better with RJ-45 connectors).
Note:
On all units, remember to use the Ethernet (LAN) RJ-45 connectors and not the RS-485 interface.
The CLX GM and the inverters can work in networks with or without a DHCP server (router),
supporting both static and dynamic IP addressing.
Configuration of the CLX GM depending on whether there is a DHCP server (router) in the network or not.
Refer to Chapter 5,
Configuration
, for further information on how to proceed.
4.2.
Mounting
The CLX GM must be installed indoors or in an electrical enclosure. It can be mounted either
horizontally or vertically (connectors facing downwards) on a mounting rail system or on a wall
using the supplied wall bracket.
Illustration 4.1: Wall Bracket
Fit the CLX GM to the bracket by clipping the screws on the back of the unit into the bracket.
When mounting the equipment, ensure free access for cable connections from below. Use cable
anchors for strain relief.
4. Installation
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Like all electronic equipment, all products in the CLX GM must be protected from
humidity, in particular condensation.
4.3. Signalling of Grid Management
Signalling of grid management is handled by the ripple control receiver of the DNO. The connection between the ripple control receiver and the CLX GM is type-dependent. It is described
here using a Landis+Gyr® receiver as an example.
Illustration 4.2: Grid Management - Connections
The ripple control receiver is connected as follows:
Input Terminal Strip
Function Ripple Control Receiver Connector (K)
+S 12-30 VDC
K1
-S1 Relay input 1
+S 12-30 VDC
K2
-S2 Relay input 2
+S 12-30 VDC
K3
-S3 Relay input 3
+S 12-30 VDC
K4
-S4 Relay input 4
A2- N/A
(0)4 .. 20 mA
A2+ N/A
A1- N/A
(0)4 .. 20 mA
A1+ N/A
Note:
Detailed configuration of grid management is done via the grid management menu of the
master inverter.
To avoid damage to the CLX GM unit and the ripple control receiver, only an authorised and suitably trained electrician must set up the connection.
4. Installation
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5. Configuration
5.1. Configuration
Install the CLX GM as described in the previous section.
• Connect the power supply to the CLX GM and the mains supply.
Administrator access:
• To configure the following, use the display . Press 'Enter', navigate to 'Configuration':
- Date and time setting
Note:
At delivery, the network configuration is set to DHCP.
Note:
Network settings - Dynamic IP address (DHCP)
This requires a DHCP server (router) in the local network. In this case, the CLX GM obtains
its network settings from the DHCP server.
5.2.
Configuring the Network
In typical level 3 switched networks (for example when using a router), the CLX GM can control
1 TLX Pro or TLX Pro+ master inverter, as it is not allowed to have more than 1 master inverter
per network. Different subnets are not sufficient. If the CLX GM is required to control more than
1 master inverter, it must be handled on the network layer, for example by using VLANs (Virtual
LAN). This requires IT specialist skills and network hardware supporting VLAN.
5.2.1. Configuration of CLX GM and Inverters with a DHCP Server
(Router) – Dynamic IP
If the inverter network operates with dynamically assigned IP addresses, there is no need to
perform any network configuration on the CLX GM.
The configuration of grid management is done directly via the web interface of the master inverter. Refer to Chapter 5.3,
Configuration of Grid Management (active and reactive power)
.
Note:
In case of communication issues, verify the IP configuration of the CLX GM and the master
inverter.
5.2.2. Configuration of CLX GM and Inverters without a DHCP Server (Router) – Static IP
If the inverter network operates with static IP addresses, it is necessary to assign an IP address
to the CLX GM as well. This can be done using the integrated display on the CLX GM. Assign an
IP address in the same range and subnet as the inverters.
5. Configuration
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Note:
It is critical that each device (inverter or CLX GM ) has a unique IP address; otherwise the
network will not function correctly.
1. Static IP configuration of the inverter
For each inverter in the network, configure a static IP address:
Via the display navigate to [Setup → Communication → IP setup], change IP config to manual
•
navigate to [Setup → Communication → IP setup], IP address
•
navigate to [Setup → Communication → IP setup], Subnet mask
where (for example):
IP address = 192.168.0. 2–255
Subnet mask = 255.255.255.0
As each inverter must have a unique IP address, enter the information as given in the example
above, but for each inverter change the last 1–3 digits (marked in bold above).
2. Static IP configuration of the CLX GM
Via the integrated display change the IP configuration of the CLX GM:
Press ‘Enter’: [Configuration → Network → DHCP] and set it to off.
The CLX GM reboots automatically and obtain a default static IP address and subnet mask,
which is:
IP address = 192.168.0. 190
Subnet mask = 255.255.255.0
IP address
192.168.0.190 192.168.0.2 192.168.0.3 192.168.0.x
Subnet mask 255.255.255.0 255.255.255.0 255.255.255.0 255.255.255.0
5.3. Configuring Grid Management (Active and Reactive Power)
Note:
Reactive power control is only possible with the TLX Pro+ inverter.
The grid management behaviour is configured directly via the web interface of the master inverter.
1. Via Ethernet, connect a PC or laptop directly to the inverter or to the router (if one is
present).
2. Open an Internet browser. In the address line, type the IP address of the master inverter (example: http://192.168.0.2). The IP address can be found via the inverter display [Setup → Communication → IP address].
5. Configuration
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3. On the login screen, use:
User: admin
Password: admin
Note:
The following instructions and graphics are based on inverter software version 3.40. Lower
inverter software versions might differ from this.
4. From the footer of the screen, choose ‘Security’ and log in with minimum security level
1.
5.
Navigate to: Plant level [Setup → Grid management].
Two types of grid management control are available for direct control using the CLX
GM: active power and reactive power.
6. If both active power control and reactive power control are needed, enable both check
marks and press ‘Next’ in order to be guided through the configuration screens.
Illustration 5.1: Control Types
To configure the remotely controlled Power Level Adjustment, choose the ‘Active power’ submenu.
• Enable the ‘Remotely controlled Power Level Adjustment’ radio button.
• 16 possible relay configurations have been preconfigured.
• Per default all 4 relay inputs are active.
• Following the information provided by your DNO, enter the appropriate power level for
each relay state (0% = off, 30%/60%/100%).
The value entered is set on each inverter and is the maximum percentage of nominal active
power that the inverter is capable of delivering.
5. Configuration
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Illustration 5.2: Configuring Active Power Control – PLA
To proceed with the configuration guide, press ‘Next’.
5.3.1. Configuring Reactive Power Control – Percent of Q (TLX Pro
+ only)
Set the ‘Remotely controlled reactive power (Q)’ radio button. Configure the relay states (K1–
K4) according to the requirements of the DNO by entering the appropriate reactive power set
point of Q for each relay state specified by the DNO. The value entered is set on each inverter
and represents the amount of reactive power that the inverter will deliver. Leave Q settle time
at 10 s, unless otherwise specified by the DNO.
Note:
Q values can also be entered as absolute values by changing the unit using the drop-down
box.
5. Configuration
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Illustration 5.3: Configuring Reactive Power Control – Percent of Q (TLX Pro+ only)
5.3.2. Configuring Reactive Power Control – Power Factor (TLX Pro
+ only)
Set the ‘Remotely controlled reactive power (Q)’ radio button. Configure the relay states (K1–
K4) according to the requirements of the DNO by entering the appropriate Power Factor setpoint for each relay state specified by the DNO.
The inverter runs according to the entered Power Factor value.
5. Configuration
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Note:
To select an inverter as master inverter, use the display or the web interface of the inverter
by navigating to [Setup → Inverter details].
5.3.3. Configuring Fallback Values
If desired, fallback mode can be activated for both active power control and reactive power
control, if these control modes have been selected.
Fallback mode is engaged when either the master inverter loses connection to the CLX GM or a
follower inverter loses the connection to the master inverter. The timeout in either case is 10
minutes, and fallback mode is automatically disengaged upon restoring the connection.
The fallback values are distributed to each inverter when the settings are saved.
Note:
In case of connection issues between only some of the follower inverters and the master inverter, only the specific inverters experiencing connection issues engage fallback mode.
Illustration 5.4: Fallback Values
The grid management configuration is now completed and the actual set points can be viewed
in the menu: Plant level [Status → Grid management].
5. Configuration
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Illustration 5.5: Grid Management
5. Configuration
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6. Technical Data
CLX GM
Processor 32-bit microcontroller, 96 MHz
Display Display 4x20 LCD ASCII backlit
Interfaces LAN (Ethernet 10/100 Mbit)
Terminal strips 12-way 6 x digital inputs (self-powered), without galvanic isolation for exter-
nal floating contact
Enclosure 2-part, fanless metal enclosure for rail mounting (IP20)
Weight 330 g net (without accessories and external AC mains adapter)
Humidity range < 80% non-condensing
Ambient humidity Indoor/switch cabinet installation
Operating temperature Minimum 0 to 50 °C
Dimensions (without screws and
mounting plate)
160 mm x 100 mm x 31 mm (W x H x D)
Power 12–30 VDC
Standby Power Consumption Approx. 1 Watt
6. Technical Data
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Danfoss Solar Inverters A/S
Ulsnaes 1
DK-6300 Graasten
Denmark
Tel: +45 7488 1300
Fax: +45 7488 1301
E-mail: solar-inverters@danfoss.com
www.danfoss.com/solar
Rev. date 2013-02-22 Lit. No. L00410637-01_02
Danfoss can accept no responsibility for possible errors in catalogues, brochures and other printed material. Danfoss reserves the right to alter its products without notice. This also applies to products
already on order provided that such alterations can be made without subsequential changes being necessary in specications already agreed.
All trademarks in this material are property of the respective companies. Danfoss and the Danfoss logotype are trademarks of Danfoss A/S. All rights reserved.
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