AD-PVO 2000 GT

Description

The Photovoltaic-Optimizer AD-PVO 2000 monitors the supply of solar energy to the main connection of a building. If the supply output exceeds a limiting value set by the customer via a PC, an internal output relay is triggered. With this switching relay, electric consumers (i.e. electric heating rod in the process water tank of the heating, air-conditioning device or heat pump) can now be triggered. With the AD-PVO 2000, the energy is converted on site and not fed back into the public low-voltage network. Through the use of this device PV systems are optimized for their own consumption and relieves the public low-voltage grid. Additionally, the AD-PVO 2000 has an error message LED and an integral error message relay, via which error messages (i.e. permanent failure of the feeding) can be displayed or acoustically signalled outside the distributor cabinet. It is recommended to mount the AD-PVO 2000 directly after the counter of the energy supply in the distributor cabinet, as measuring should be carried out as close as possible to the feeding point. The device requires all three outer conductor voltages for its measurements and the zero conductor. The AD-PVO 2000 measures the current via three external split current current transformer, which can be mounted directly onto the 3 phases after the counter, therefore saving space (without separation). The Photovoltaic Optimiser acquires the self-generated supply energy from the measurement voltage L1. Due to its efficient switching network and its low power consumption, the AD-PVO 2000 generates only a negligible amount of warming and can therefore be lined up closely.

AD-PVO 2000 GT

Application

For optimising the self-generated energy at photovoltaic units

Specific characteristics

Self-sufficiency through measuring voltages
Internal overload and fault relay
Current measurement with clamp on/split core current transformer
Configuration via PC
compatible with the most SG-Ready compatible heat pumps

Business data

Order number
AD-PVO 2000 GT
Identifiers
Customs tariff number / country of origin	8543 70 90 / Deutschland

Information

Downloads
Data sheet	en-pvo2000.pdf (229 kB)
Safety instructions	ad-safety-instructions.pdf (86 kB)

Technical specifications

Current-inputs (I1...I3)
Measuring range	0 ... 33 mA AC (0 ... 100 A AC via external current transformer)
Input resistance	Ca. 10 Ohm
Voltage-inputs (L1...L3)
Measuring range	230 V AC (+/- 10 %)
Input resistance	Ca. 500 kOhm
External current-transformer
Primary current	0 ... 100 A AC
Secondary current	0 ... 33 mA AC
Transformation ratio	1:3000 (Np : Ns)
Maximum wire diameter	15 mm
Max. secundary wire length	2 m
Isolation-voltage	2,5 kV / 1 min
Dimensions (WxHxD)	32x42x46 mm
Load-relay
Maximum switching load AC	250 V, 9 A
Maximum switching load DC	50 V, 9 A
Contact construction	Closing contact
Switching operations mechanical	6000000
At 230V/9A AC, cos(phi)=1	400000
At 230V/9A AC, cos(phi)=0,4	150000
At 24V/9A DC	200000
Error-relay
Maximum switching load AC	250 V, 2 A
Maximum switching load DC	50 V, 2 A
Contact construction	Changeover contact
Switching operations mechanical	10000000
At 230V/2A AC, cos(phi)=1	600000
At 230V/2A AC, cos(phi)=0,4	200000
At 24V/2A DC	200000
Supply
Voltage range AC	230 V AC (+/- 10 %), 50/60 Hz (see voltage-inputs)
Nominal voltage AC	230 V AC
Power consumption	Max. 3,8 VA
Transfer behavior - in reference to the current value
Basic accuracy	< 1 % (class 1)
Temperature influence	80 ppm/K
Response time	< 2 s
Housing
Dimensions (WxHxD)	71x90x58 mm
Type of protection	IP 20
Connection method	Screw clamp
Terminals, wire cross section	2,5 mm² flex wire / 4 mm² one wire
Bolting torque terminals	0,6 Nm
Skinning length	6 mm
Weight	~ 175 g + 3x 75 g (current-transf.)
Manner of fastening	35 mm DIN rail 35mm
Environmental conditions
Ambient temperature	-10 ... 50 °C
Storage and transport	-10 ... 70 °C (no condensation)
EMC
Product family standard	EN 61326-1 ¹⁾
Emitted interference	EN 55011, CISPR11 Cl. B, Gr. 1
Electrical safety requirements
Product family standard	EN 61010-1
Overvoltage category	II
Pollution degree	2
Safety measurement	EN 61010-2-030
Measurement category	CAT III
Galvanic isolation, test voltages
Grid side to relay outputs	4 kV, 50 Hz (1 min.)
Grid side to the pc-interface	4 kV, 50 Hz (1 min.)
Grid side to control elements	4 kV, 50 Hz (1 min.)
Relay-outputs among each other	4 kV, 50 Hz (1 min.)
Protection circuits
Input	Electrical surge protection
Load-relay	Spark quenching
Power supply	Protection against over-temperature, over-voltage and over-current

¹⁾ During checking, slight signal deviations are possible.
Heat pump control
SG-Ready
With the PV optimizer AD-PVO 2000 heat pumps can be signaled that enough PV surplus exists.
Thus, the heat pump can raise their storage or flow temperature and increase the personal consumption.
The optimizer is compatible with many SG-Ready (Smart Grid Ready) enabled heat pumps. The SG-Ready logo can be found on your heat pump.
The SG-ready interface is designed in in most cases as a contact input therefore, the overload relay of the PVO can be used easily as a signal for the temperature increase of the heat pump.
What is to be done at a SG-signal, it must be parameterized on the heat pump.

Block and wiring diagram

AD-PVO 2000 GT

Dimensions

AD-PVO 2000 GT

CAD / CAE Daten

CAD model is not yet available for this product.

The CAD product overview can be found at: adamczewski.partcommunity.com

Operation

Operating LED
The green operating LED indicates the operating status of the device.
- off: the device has no operating voltage
- permanently on: the device is in normal operation mode
- flashing with 1 Hz: the load is connected to the device
- flashing with 5 Hz: the manual load connection is active
Error LED
The red error LED indicates whether an error is present.
- off: no error
- on: error is present
Key: Manual load
The button "Manual load" serve the manual connection of the load relay. The load is activated with a long depression of the key (2s) and deactivated the same way.
Key: Quit
The key "Quit" is provided for quitting an error message. If an error is present, the red error indicator LED lights up and the error message relay responds. An acoustic indicator can be connected at the error message relay, for instance. Now if the key "Quit" is activated, the relay releases again. The red error LED, however, is lit until the error has been eliminated.

Software and parameterizing
The device can be parameterized and read out with the parameterizing software AD-Studio and the optionally available USB programming adapter AD-VarioPass3. The suitable USB driver for the USB programming adapter AD-VarioPass2 is supplied with the software AD-Studio. With the software, measuring values can also be read out or logged.For connecting to the PC, the blind plug must be removed from the parameterizing interface (AD-PC), i.e. with a small screwdriver. Push the screwdriver into the slot provided and work the blind plug out.
The following parameters can be edited:

- Filter: Analogue value filter for the input measuring dimensions. Serves the suppression of quick measuring value alterations.
- Current transformer type: Specifies the connected current transformers type (distinguishing primary current).
- Power of the load: The power consumption at the load relay required by the connected load must be specified here. This specification is required for internal calculations.
- Switch-on-level: Sets the switch-on threshold of the load relay, in reference to the fed power.
- Switch-off-level: Sets the switch-off threshold of the load relay, in reference to the fed power.
- Fault injection time: Sets the time, after which an alarm is triggered when during this set time no feeding has occurred.
- Plant size: Sets the plant size in kWp. Only used at 70%-message.
- Error relay function: Sets the function of the fault relay. You can choose between two modes: "feed-error" and "70%-message". The standard function "feed error" triggers a fault message after a specified time. This time is set in parameter "Fault injection time". The "70% message" triggers an alarm if all loads of the PVO are switched on and the PV-plant over 70% feeds. It is the "plant size" parameter evaluated.

Automatic load calibration
For commissioning the AD-PVO 2000, the parameters are normally adjusted via the parameterizing software AD-Studio and the available USB programming adapter AD-VarioPass3. However, an "automatic load calibration" can also be started directly at the device. In this operating mode, the output of the consumer connected to the load relay is automatically calibrated and a PC is not necessary. The load calibration is started with a longer depression of the "Quit-key" (3s). As long as the calibration is running, the two LEDs flash alternately. This process can last up to several minutes. If the calibration is cancelled with a brief depression of the "Quit-key", the values in the parameter are reset to the last status. After successful completion of the "automatic load calibration", the device takes over the measuring data and returns to normal operation. If the load calibration is not completed after approx. 15 minutes, there are too strong load fluctuations in the network. With too strong load fluctuations, the device is difficult to calibrate. Here we recommend to separate these loads briefly from the network during the calibration time, or to parameterize the device via the PC.