MAKING MODERN LIVING POSSIBLE
SOLAR INVERTERS
Installation Guide
Sensor Interface Option
FLX series
www.danfoss.com/solar
Safety
Safety
WARNING
Safety Message Types
WARNING
Warning with symbol is used to indicate potentially
hazardous situations, which can cause serious injury or
death. This information is important for human safety.
CAUTION
Caution with symbol is used for indicating potentially
hazardous situations that can cause minor or moderate
injuries.
Disconnecting the inverter
Before starting work on the inverter, switch off AC at the
mains switch and PV using the PV load switch. Ensure that
the device cannot be unintentionally reconnected. Use a
voltage tester to ensure that the unit is disconnected and
voltage free. The inverter can still be charged with very
high voltage at hazardous levels even when it is disconnected from AC grid and solar modules. Wait at least 8
minutes following disconnection from grid and PV panels
before proceeding.
For safe disconnection of DC current, turn off the PV load
switch (1).
160AA001.10
CAUTION
Caution without symbol is used for indicating situations
that may result in equipment or property damage.
NOTE
Note is used for indicating highlighted information that
should be regarded with attention.
General Safety
1
All persons installing and servicing inverters must be:
•
Trained and experienced in general safety rules
for work on electrical equipment
•
Familiar with local requirements, rules and
regulations for the installation
CAUTION
NOTE
Before installation
Check for damage to equipment and packaging. If in
doubt, contact the supplier before commencing installation.
CAUTION
Installation
For optimum safety, follow the steps described in this
document. Keep in mind that the inverter has two voltage
carrying sides; the PV input and the AC grid.
Maintenance and modification
Only authorised personnel are permitted to modify the
inverter. To ensure personal safety, use only original spare
parts available from the supplier. If non-original spare parts
are used, compliance with CE guidelines in respect of
electrical safety, EMC and machine safety is not
guaranteed.
The temperature of the cooling racks and components
inside the inverter can exceed 70ºC. Observe the danger of
burn injury.
DC voltages up to 1000 V are present in a PV system even
when the inverter is disconnected from the AC grid. Faults
or inappropriate use may lead to electric arcing.
L00410607-01_02
Safety
L00410607-01_02
Contents
Contents
1 Installation
2
2 Setup
5
3 Troubleshooting
6
4 Specifications
7
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1
1 Installation
CAUTION
This manual describes the installation of the Sensor
Interface Option in the FLX series inverter.
Before installation, have the following ready:
•
•
To ensure EMC compliance, apply shielded cables for
sensor inputs.
Other auxiliary cables must pass through the designated
EMC cable clamps to establish mechanical fixing and in
case of shielded cable termination to the shielding device.
Sensor Interface Option (1)
Manual
1
160AA032.10
1 1
Installation
CAUTION
Do not penetrate or open the housing of the option.
Opening or penetration may result in equipment damage.
1.1 Installation
To install the option:
1.
On the inverter, open the cover of the installation
area.
2.
Insert the Sensor Interface Option into one of the
two option slots; option slot 1 or option slot 2,
see Illustration 1.2. Fasten with a ‘click’ on both
sides of the option.
3.
Note the calibration value of the irradiation
sensor (mV/1000 W/m2) for later use.
4.
Connect sensor wires, see Illustration 1.3. See also
CLX Sensor Kit Installation Guide or sensor
manufacturer’s guidelines.
5.
Fasten wires with cable tie.
Illustration 1.1 Scope of Delivery - Sensor Interface Option
WARNING
Before starting work on the inverter, switch off AC at the
mains switch and PV using the PV load switch. Before
proceeding wait at least 8 minutes after disconnection
from grid and PV panels, until the inverter has completely
discharged. Failure to switch off AC and PV and wait for
discharge may result in personal injury.
The inverter will only detect the option, when the option is
installed in an unpowered state.
CAUTION
To ensure fulfilment of IP enclosure rating, correctly
mounted cable glands are essential for all peripheral
cables.
2
L00410607-01_02
160AA018.10
Installation
GSM
SIM Card
RELAY (NO)
SO+
SO-
IR+
IR-
TEMP IR.
TEMP AMB
TEMP MOD
Sensor Option
1 1
RS485A
RS485B
ETHERNET
SD Memory Card
Illustration 1.2 Option Position on Communication Board
160AA033.10
Connect the sensor wires as shown:
1
2
TEMP MOD
3
TEMP AMB
4
TEMP IR.
IR+
IR-
5
S0+
S0
6
L
N
RELAY (NO)
Sensor input type
Sensor wire
Terminal
on option
1 Module
(+)
temperature sensor (-)
TEMP MOD
2 Ambient
(+)
temperature sensor (-)
TEMP AMB
3 Combined
(+)
irradiation and
(-)
temperature sensor
(sensor not
illustrated)
TEMP IR.
4 Irradiation sensor
IR+
Irradiation sensor
shielding
(+)
(-)
IR-
Shielded cable
PE
connection
point on
inverter
(+)
S0+
Illustration 1.3 Sensor Connections to Sensor Interface Option
5 Energy meter
6 Relay (normally
open)
(-)
S0-
Refer to Illustration 1.3.
RELAY
(NO)
Table 1.1 Connection Cable Identifier
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3
1.2 Removal
To remove the option:
1.
Insert a screwdriver at the snap connector on the
side of the option.
2.
Apply pressure sideways to release the snap
connector as shown in Illustration 1.4.
3.
Lift the option off the option slot.
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1 1
Installation
Illustration 1.4 Removal of Option
1.3 Closure and Verification
4
1.
Close the cover of the inverter installation area.
Ensure that the cover is correctly fastened.
2.
Turn on PV and AC connection.
3.
Verify that the option is detected. Refer to
2.1.1 Verification via Display.
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Setup
2 Setup
-
Disconnect PV and AC, and open the
cover to the inverter installation area as
described in 1.1 Installation.
-
Check the option is pushed completely
into place and sits firmly with no
movement.
-
Repeat steps 1 to 3.
-
If the message ‘Required option is not
installed’ still appears, contact hotline.
2.1 Prepare for Setup
2.1.1 Verification via Display
Verify that the option is detected.
1.
Turn on PV and AC connection.
2.
In the display, go to [Setup → Calibration].
3.
If the sub-menu “Irradiation sensor”,” Temp
sensor offset” or “S0 sensor input” is listed, then
this confirms the option is installed correctly.
4.
If none of these sub-menus are listed, then the
option is not installed correctly. Actions:
-
Disconnect PV and AC, and open the
cover to the inverter installation area as
described in 1.1 Installation.
-
Check the option is pushed completely
into place and sits firmly with no
movement.
-
Repeat steps 1 to 3.
-
If the sub-menus are still not visible,
contact hotline.
2.1.2 Verification via Web Interface
2.2 Setup via Display or Web Interface
To set up the sensors ready for operation,
1.
In the display, go to [Setup → Calibration →
Irradiation sensor], [Setup → Calibration → Temp
sensor offset], and [Setup → Calibration → S0
sensor input]
2.
In the web interface, go to [Setup → Calibration →
Sensors]
3.
Enter the calibration and offset values as
described in Table 2.1.
Item
Unit
The calibration value of the
irradiation sensor.
The value is usually written on a
label at the back of the sensor.
Note that this value must be
entered before the inverter will
recognise that there is an
irradiation sensor connected.
Irradiation sensor %
temp. coeff.
Calibration value for internal
temperature correction of the
irradiation measurement. Only
used for irradiation sensors with
integrated temperature compensation.
PV temp. offset
°C
The temperature sensor may be
calibrated using an offset ranging
Ambient temp.
offset
°C
The temperature sensor may be
calibrated using an offset ranging
S0 scale
pulses/
kWh
In order to use an energy meter
(S0 sensor), the scale of the
energy meter must be entered
here.
Verify that the option is detected.
1.
Turn on PV and AC connection.
2.
In the web interface, go to [Setup → Calibration].
3.
When the screen in Illustration 2.1 appears, then
this confirms the option is installed correctly.
Description
Irradiation sensor mV(1000
scale
w/m2)
from −5.0 to 5.0 °C.
Illustration 2.1 Sensor Calibration and Offset Settings
4.
When the screen in Illustration 2.1 appears with
the message ‘Required option is not installed’,
then the option is not installed correctly.
from −5.0 to 5.0 °C.
Actions:
Table 2.1 Sensor Calibration and Offset Settings
For details of the sensors, refer to section 4 Specifications.
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5
2 2
Troubleshooting
3 Troubleshooting
If a sensor is not detected:
3 3
1.
Confirm that the option is correctly installed, see
section 2.1.1 Verification via Display.
2.
Go to the inverter equipped with the sensor
interface option. Normally this is the master
inverter.
3.
Find the event ID reported by the inverter
4.
6
•
In the display, go to [Log → Event Log].
Find the event ID under [Latest event]
or [Last 20 events]
•
In the web interface, go to [Inverter
level: Log → Event Log].
Find the event ID under [EventId].
Refer to the event list in the FLX Series User Guide
for explanation of error codes and recommended
action.
L00410607-01_02
Specifications
4 Specifications
Terminal
Parameter
Parameter Details
Specification
All terminals
Wiring terminal
Maximum wire gauge, solid wire
1.5 mm2
Maximum wire gauge, stranded
wire
1.0 mm2
Cabling
Cable jacket diameter (⌀)
4-8 mm
Sensor input
Sensor type
3 x PT10003)
Nominal resistance/temperature
coefficient
3.85 Ω/oC
Measurement range
-20 oC - +100 oC
Measurement accuracy
±2 oC
Short-circuit protection
Yes
Temperature sensor input
TEMP MOD
TEMP AMB
TEMP IR.
Irradiation sensor input
IR+
IR-
Energy meter input
S0+
S0-
Relay output (normally open)
RELAY (NO)
Electrical safety
Direct contact protection
Double/Reinforced insulation
Cabling
Cable type
Single pair - 2-wire1)
Maximum resistance per wire2)
2Ω
Sensor type
Current shunt (passive)
Measurement range
0 - 150 mV
Max. output impedance (sensor)
500 Ω
Input impedance (electronics)
24 kΩ
Measurement accuracy
±5 % at 150 mV sensor output
voltage
Sensor input
Short-circuit protection
Yes
Electrical safety
Direct contact protection
Double/Reinforced insulation
Cabling
Cable type
Single pair - 2-wire1)
Two pairs - 4 wires with temperature
compensation
Maximum resistance per wire2)
10 Ω
Sensor type
S0 output device
Sensor input
Sensor input class
Class A
Nominal output current
12 mA for an 800 Ω load
Maximum short-circuit output
current
24.5 mA
Open-circuit output voltage
+12 VDC
Maximum pulse frequency
16.7 Hz
Short-circuit protection
Yes
Electrical safety
Direct contact protection
Double/Reinforced insulation
Cabling
Cable type
Single pair - 2-wire1)
Relay output
4 4
Maximum resistance per wire2)
10 Ω
Relay type
Potential free contact
Rating AC
250 VAC maximum permitted voltage,
1.0 A, 230 W
Rating DC
24 VDC, 1.0 A, 24 W
Electrical safety
Overvoltage category
Class III
Cabling
Cable type
Single pair - 2-wire1)
Table 4.1 Sensor Interface Specifications
1)
Shielded or unshielded cables may be used.
2)
Cable resistances will result in a measurement offset.
3)
Third input is used for compensation of the irradiation sensor.
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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
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 specifications 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.
Rev. date 2013-05-01 Lit. No. L00410607-01_02